Add text rounded background sample

Test: Visual by building the app
Bug: 110068813
Change-Id: Ic870bab8fa565ffcbc8b90bc1537d888b4928051

51 files changed, 1823 insertions, 0 deletions

diff --git a/ui/text/RoundedBackground-Kotlin/app/build.gradle b/ui/text/RoundedBackground-Kotlin/app/build.gradle
new file mode 100644
index 00000000..0b78ce1c
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/app/build.gradle
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+apply plugin: 'com.android.application'
+
+apply plugin: 'kotlin-android'
+
+
+android {
+    compileSdkVersion rootProject.compileSdkVersion
+
+    defaultConfig {
+        applicationId "com.android.example.text.styling.roundedbg"
+        minSdkVersion rootProject.minSdkVersion
+        targetSdkVersion rootProject.targetSdkVersion
+        versionCode 1
+        versionName "1.0"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    implementation project(':lib')
+    implementation "androidx.appcompat:appcompat:$androidxVersion"
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+}
\ No newline at end of file
diff --git a/ui/text/RoundedBackground-Kotlin/app/src/main/AndroidManifest.xml b/ui/text/RoundedBackground-Kotlin/app/src/main/AndroidManifest.xml
new file mode 100644
index 00000000..d7429d4b
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/app/src/main/AndroidManifest.xml
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2018 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.android.example.text.styling.roundedbg.app">
+
+    <application
+            android:allowBackup="true"
+            android:icon="@mipmap/ic_launcher"
+            android:label="@string/app_name"
+            android:roundIcon="@mipmap/ic_launcher_round"
+            android:supportsRtl="true"
+            android:theme="@style/Theme.RoundedBackground">
+        <activity android:name=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
\ No newline at end of file
diff --git a/ui/text/RoundedBackground-Kotlin/app/src/main/java/com/android/example/text/styling/roundedbg/app/MainActivity.kt b/ui/text/RoundedBackground-Kotlin/app/src/main/java/com/android/example/text/styling/roundedbg/app/MainActivity.kt
new file mode 100644
index 00000000..53ae397c
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/app/src/main/java/com/android/example/text/styling/roundedbg/app/MainActivity.kt
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+*/
+package com.android.example.text.styling.roundedbg.app
+
+import android.os.Bundle
+import androidx.appcompat.app.AppCompatActivity
+
+/**
+ * Sample activity that uses [com.android.example.text.styling.roundedbg.RoundedBgTextView].
+ */
+class MainActivity : AppCompatActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_main)
+    }
+}
diff --git a/ui/text/RoundedBackground-Kotlin/app/src/main/res/drawable-v24/ic_launcher_foreground.xml b/ui/text/RoundedBackground-Kotlin/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
new file mode 100644
index 00000000..888da70e
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/app/src/main/res/drawable-v24/ic_launcher_foreground.xml
@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2018 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportHeight="108"
+    android:viewportWidth="108">
+    <path
+        android:fillType="evenOdd"
+        android:pathData="M32,64C32,64 38.39,52.99 44.13,50.95C51.37,48.37 70.14,49.57 70.14,49.57L108.26,87.69L108,109.01L75.97,107.97L32,64Z"
+        android:strokeColor="#00000000"
+        android:strokeWidth="1">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="78.5885"
+                android:endY="90.9159"
+                android:startX="48.7653"
+                android:startY="61.0927"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M66.94,46.02L66.94,46.02C72.44,50.07 76,56.61 76,64L32,64C32,56.61 35.56,50.11 40.98,46.06L36.18,41.19C35.45,40.45 35.45,39.3 36.18,38.56C36.91,37.81 38.05,37.81 38.78,38.56L44.25,44.05C47.18,42.57 50.48,41.71 54,41.71C57.48,41.71 60.78,42.57 63.68,44.05L69.11,38.56C69.84,37.81 70.98,37.81 71.71,38.56C72.44,39.3 72.44,40.45 71.71,41.19L66.94,46.02ZM62.94,56.92C64.08,56.92 65,56.01 65,54.88C65,53.76 64.08,52.85 62.94,52.85C61.8,52.85 60.88,53.76 60.88,54.88C60.88,56.01 61.8,56.92 62.94,56.92ZM45.06,56.92C46.2,56.92 47.13,56.01 47.13,54.88C47.13,53.76 46.2,52.85 45.06,52.85C43.92,52.85 43,53.76 43,54.88C43,56.01 43.92,56.92 45.06,56.92Z"
+        android:strokeColor="#00000000"
+        android:strokeWidth="1" />
+</vector>
diff --git a/ui/text/RoundedBackground-Kotlin/app/src/main/res/drawable/ic_launcher_background.xml b/ui/text/RoundedBackground-Kotlin/app/src/main/res/drawable/ic_launcher_background.xml
new file mode 100644
index 00000000..a5e49139
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/app/src/main/res/drawable/ic_launcher_background.xml
@@ -0,0 +1,185 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2018 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportHeight="108"
+    android:viewportWidth="108">
+    <path
+        android:fillColor="#26A69A"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeColor="#33FFFFFF"
+        android:strokeWidth="0.8" />
+</vector>
diff --git a/ui/text/RoundedBackground-Kotlin/app/src/main/res/drawable/rounded.xml b/ui/text/RoundedBackground-Kotlin/app/src/main/res/drawable/rounded.xml
new file mode 100644
index 00000000..f69e6bf9
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/app/src/main/res/drawable/rounded.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2018 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="@color/roundedBg"/>
+    <stroke android:width="@dimen/roundedBorderWidth" android:color="@color/roundedBorder"/>
+    <corners android:radius="@dimen/roundedBorderRadius"/>
+</shape>
\ No newline at end of file
diff --git a/ui/text/RoundedBackground-Kotlin/app/src/main/res/drawable/rounded_left.xml b/ui/text/RoundedBackground-Kotlin/app/src/main/res/drawable/rounded_left.xml
new file mode 100644
index 00000000..6883c63e
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/app/src/main/res/drawable/rounded_left.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2018 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="@color/roundedBg"/>
+    <stroke android:width="@dimen/roundedBorderWidth" android:color="@color/roundedBorder"/>
+    <corners android:topLeftRadius="@dimen/roundedTextBorderRadius"
+             android:bottomLeftRadius="@dimen/roundedTextBorderRadius"/>
+</shape>
\ No newline at end of file
diff --git a/ui/text/RoundedBackground-Kotlin/app/src/main/res/drawable/rounded_mid.xml b/ui/text/RoundedBackground-Kotlin/app/src/main/res/drawable/rounded_mid.xml
new file mode 100644
index 00000000..b1714ecd
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/app/src/main/res/drawable/rounded_mid.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2018 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="@color/roundedBg"/>
+    <stroke android:width="@dimen/roundedBorderWidth" android:color="@color/roundedBorder"/>
+</shape>
\ No newline at end of file
diff --git a/ui/text/RoundedBackground-Kotlin/app/src/main/res/drawable/rounded_right.xml b/ui/text/RoundedBackground-Kotlin/app/src/main/res/drawable/rounded_right.xml
new file mode 100644
index 00000000..8066d972
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/app/src/main/res/drawable/rounded_right.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2018 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="@color/roundedBg"/>
+    <stroke android:width="@dimen/roundedBorderWidth" android:color="@color/roundedBorder"/>
+    <corners android:topRightRadius="@dimen/roundedBorderRadius"
+             android:bottomRightRadius="@dimen/roundedBorderRadius"/>
+</shape>
\ No newline at end of file
diff --git a/ui/text/RoundedBackground-Kotlin/app/src/main/res/layout/activity_main.xml b/ui/text/RoundedBackground-Kotlin/app/src/main/res/layout/activity_main.xml
new file mode 100644
index 00000000..b3738cb3
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/app/src/main/res/layout/activity_main.xml
@@ -0,0 +1,131 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2018 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<ScrollView
+        xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:tools="http://schemas.android.com/tools"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" xmlns:app="http://schemas.android.com/apk/res-auto"
+        tools:context=".MainActivity">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical">
+
+        <com.android.example.text.styling.roundedbg.RoundedBgTextView
+            android:text="@string/ltr"
+            style="@style/Widget.RoundedBackground.SampleTextView"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_margin="@dimen/textViewMargin"/>
+
+        <View style="@style/Widget.RoundedBackground.Divider"
+            android:layout_width="match_parent"
+            android:layout_height="@dimen/dividerHeight"/>
+
+        <com.android.example.text.styling.roundedbg.RoundedBgTextView
+            android:text="@string/ltr_multi"
+            style="@style/Widget.RoundedBackground.SampleTextView"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_margin="@dimen/textViewMargin"/>
+
+        <View style="@style/Widget.RoundedBackground.Divider"
+            android:layout_width="match_parent"
+            android:layout_height="@dimen/dividerHeight"/>
+
+        <com.android.example.text.styling.roundedbg.RoundedBgTextView
+            android:text="@string/ltr_long"
+            style="@style/Widget.RoundedBackground.SampleTextView"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_margin="@dimen/textViewMargin"
+            app:roundedTextDrawable="@drawable/rounded"
+            app:roundedTextDrawableLeft="@drawable/rounded_left"
+            app:roundedTextDrawableMid="@drawable/rounded_mid"
+            app:roundedTextDrawableRight="@drawable/rounded_right"/>
+
+        <View style="@style/Widget.RoundedBackground.Divider"
+            android:layout_width="match_parent"
+            android:layout_height="@dimen/dividerHeight"/>
+
+        <com.android.example.text.styling.roundedbg.RoundedBgTextView
+            android:text="@string/rtl"
+            style="@style/Widget.RoundedBackground.SampleTextView"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_margin="@dimen/textViewMargin"/>
+
+        <View style="@style/Widget.RoundedBackground.Divider"
+            android:layout_width="match_parent"
+            android:layout_height="@dimen/dividerHeight"/>
+
+        <com.android.example.text.styling.roundedbg.RoundedBgTextView
+            android:text="@string/rtl_multi"
+            style="@style/Widget.RoundedBackground.SampleTextView"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_margin="@dimen/textViewMargin"/>
+
+        <View style="@style/Widget.RoundedBackground.Divider"
+            android:layout_width="match_parent"
+            android:layout_height="@dimen/dividerHeight"/>
+
+        <com.android.example.text.styling.roundedbg.RoundedBgTextView
+            android:text="@string/lang1"
+            style="@style/Widget.RoundedBackground.SampleTextView"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_margin="@dimen/textViewMargin"/>
+
+        <View style="@style/Widget.RoundedBackground.Divider"
+            android:layout_width="match_parent"
+            android:layout_height="@dimen/dividerHeight"/>
+
+        <com.android.example.text.styling.roundedbg.RoundedBgTextView
+            android:text="@string/lang2"
+            style="@style/Widget.RoundedBackground.SampleTextView"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_margin="@dimen/textViewMargin"/>
+
+        <View style="@style/Widget.RoundedBackground.Divider"
+            android:layout_width="match_parent"
+            android:layout_height="@dimen/dividerHeight"/>
+
+        <com.android.example.text.styling.roundedbg.RoundedBgTextView
+            android:text="@string/lang3"
+            style="@style/Widget.RoundedBackground.SampleTextView"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_margin="@dimen/textViewMargin"/>
+
+        <View style="@style/Widget.RoundedBackground.Divider"
+            android:layout_width="match_parent"
+            android:layout_height="@dimen/dividerHeight"/>
+
+        <com.android.example.text.styling.roundedbg.RoundedBgTextView
+            android:text="@string/lang4"
+            style="@style/Widget.RoundedBackground.SampleTextView"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_margin="@dimen/textViewMargin"/>
+
+    </LinearLayout>
+
+
+</ScrollView>
diff --git a/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml b/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
new file mode 100644
index 00000000..d3441ca6
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2018 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
\ No newline at end of file
diff --git a/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml b/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
new file mode 100644
index 00000000..d3441ca6
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2018 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
\ No newline at end of file
diff --git a/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-hdpi/ic_launcher.png b/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 00000000..a2f59082
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-hdpi/ic_launcher.png
diff --git a/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-hdpi/ic_launcher_round.png b/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-hdpi/ic_launcher_round.png
new file mode 100644
index 00000000..1b523998
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-hdpi/ic_launcher_round.png
diff --git a/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-mdpi/ic_launcher.png b/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 00000000..ff10afd6
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-mdpi/ic_launcher.png
diff --git a/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-mdpi/ic_launcher_round.png b/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-mdpi/ic_launcher_round.png
new file mode 100644
index 00000000..115a4c76
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-mdpi/ic_launcher_round.png
diff --git a/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-xhdpi/ic_launcher.png b/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 00000000..dcd3cd80
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-xhdpi/ic_launcher.png
diff --git a/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png b/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png
new file mode 100644
index 00000000..459ca609
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png
diff --git a/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-xxhdpi/ic_launcher.png b/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 00000000..8ca12fe0
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
diff --git a/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png b/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
new file mode 100644
index 00000000..8e19b410
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
diff --git a/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 00000000..b824ebdd
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
diff --git a/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png b/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
new file mode 100644
index 00000000..4c19a13c
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
diff --git a/ui/text/RoundedBackground-Kotlin/app/src/main/res/values/colors.xml b/ui/text/RoundedBackground-Kotlin/app/src/main/res/values/colors.xml
new file mode 100644
index 00000000..932c9e93
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/app/src/main/res/values/colors.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2018 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<resources>
+    <color name="colorPrimary">#DDD</color>
+    <color name="colorPrimaryDark">#CCC</color>
+    <color name="colorAccent">#FF7F50</color>
+
+    <color name="divider">#CCC</color>
+
+    <color name="roundedBg">#FFF176</color>
+    <color name="roundedBorder">#CABF45</color>
+</resources>
diff --git a/ui/text/RoundedBackground-Kotlin/app/src/main/res/values/dimens.xml b/ui/text/RoundedBackground-Kotlin/app/src/main/res/values/dimens.xml
new file mode 100644
index 00000000..02814ded
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/app/src/main/res/values/dimens.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2018 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<resources>
+    <dimen name="textViewMargin">8dp</dimen>
+    <dimen name="dividerHeight">1dp</dimen>
+
+    <dimen name="roundedBorderRadius">6dp</dimen>
+    <dimen name="roundedBorderWidth">2dp</dimen>
+</resources>
diff --git a/ui/text/RoundedBackground-Kotlin/app/src/main/res/values/strings.xml b/ui/text/RoundedBackground-Kotlin/app/src/main/res/values/strings.xml
new file mode 100644
index 00000000..35cc087d
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/app/src/main/res/values/strings.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2018 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<resources>
+    <string name="app_name">Rounded Multiline Bg</string>
+
+    <!-- Without the quotes at the begining and end Android strips the whitespace and also starts
+    the annotation at the wrong position. -->
+    <string name="ltr">"this is <annotation key="rounded">a regular</annotation> paragraph."</string>
+    <string name="ltr_multi">"this contains <annotation key="rounded">a\nline break</annotation> and continues."</string>
+    <string name="ltr_long">"this is <annotation key="rounded">a paragraph \nthat would cover more than\ntwo</annotation> lines."</string>
+    <string name="rtl"> هذا هو "<annotation key="rounded">الحق في</annotation>" الفقرة اليسرى </string>
+    <string name="rtl_multi"> هذا هو"<annotation key="rounded">حق\n لفقرة</annotation>" اليسار </string>
+    <string name="lang1">"ဟ <annotation key="rounded">ယ်လို\nဟယ်လို</annotation> ယ်လို"</string>
+    <string name="lang2">"អ <annotation key="rounded">៊ីតាលី\nអ៊ីតា</annotation> លី""</string>
+    <string name="lang3">"नमस्ते <annotation key="rounded">दुनिया\nनमस्ते</annotation> दुनिया"</string>
+    <string name="lang4">"สวัสดี <annotation key="rounded">ชาวโลก\nสวัสดีชาวโ</annotation> ลก"</string>
+
+</resources>
\ No newline at end of file
diff --git a/ui/text/RoundedBackground-Kotlin/app/src/main/res/values/styles.xml b/ui/text/RoundedBackground-Kotlin/app/src/main/res/values/styles.xml
new file mode 100644
index 00000000..1997dad9
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/app/src/main/res/values/styles.xml
@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2018 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<resources>
+
+    <!-- Base application theme. -->
+    <style name="Theme.RoundedBackground" parent="Theme.AppCompat.Light">
+        <item name="colorPrimary">@color/colorPrimary</item>
+        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
+        <item name="colorAccent">@color/colorAccent</item>
+    </style>
+
+    <style name="Widget.RoundedBackground" parent="android:Widget"/>
+
+    <style name="Widget.RoundedBackground.SampleTextView">
+        <item name="android:lineSpacingExtra">2dp</item>
+        <item name="android:lineSpacingMultiplier">1.5</item>
+        <item name="android:padding">4dp</item>
+        <item name="android:textSize">18sp</item>
+        <item name="android:includeFontPadding">true</item>
+        <item name="roundedTextHorizontalPadding">2dp</item>
+        <item name="roundedTextVerticalPadding">2dp</item>
+    </style>
+
+    <style name="Widget.RoundedBackground.Divider">
+        <item name="android:background">#CCC</item>
+        <item name="android:padding">2dp</item>
+    </style>
+</resources>
diff --git a/ui/text/RoundedBackground-Kotlin/build.gradle b/ui/text/RoundedBackground-Kotlin/build.gradle
new file mode 100644
index 00000000..f6df7566
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/build.gradle
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+    ext.kotlin_version = '1.2.51'
+    repositories {
+        google()
+        mavenCentral()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.3.0-alpha03'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}
+
+ext {
+    // Sdk and tools
+    minSdkVersion = 15
+    targetSdkVersion = 28
+    compileSdkVersion = 28
+    // App dependencies
+    androidxVersion = '1.0.0-beta01'
+    ktxVersion = '1.0.0-alpha1'
+}
\ No newline at end of file
diff --git a/ui/text/RoundedBackground-Kotlin/gradle.properties b/ui/text/RoundedBackground-Kotlin/gradle.properties
new file mode 100644
index 00000000..743d692c
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/gradle.properties
@@ -0,0 +1,13 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx1536m
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
diff --git a/ui/text/RoundedBackground-Kotlin/gradle/wrapper/gradle-wrapper.jar b/ui/text/RoundedBackground-Kotlin/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 00000000..7a3265ee
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/gradle/wrapper/gradle-wrapper.jar
diff --git a/ui/text/RoundedBackground-Kotlin/gradle/wrapper/gradle-wrapper.properties b/ui/text/RoundedBackground-Kotlin/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 00000000..37fcd35b
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Wed Jul 11 10:47:22 PDT 2018
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.9-bin.zip
diff --git a/ui/text/RoundedBackground-Kotlin/gradlew b/ui/text/RoundedBackground-Kotlin/gradlew
new file mode 100755
index 00000000..cccdd3d5
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/gradlew
@@ -0,0 +1,172 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"
diff --git a/ui/text/RoundedBackground-Kotlin/gradlew.bat b/ui/text/RoundedBackground-Kotlin/gradlew.bat
new file mode 100644
index 00000000..e95643d6
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/gradlew.bat
@@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off

+@rem ##########################################################################

+@rem

+@rem  Gradle startup script for Windows

+@rem

+@rem ##########################################################################

+

+@rem Set local scope for the variables with windows NT shell

+if "%OS%"=="Windows_NT" setlocal

+

+set DIRNAME=%~dp0

+if "%DIRNAME%" == "" set DIRNAME=.

+set APP_BASE_NAME=%~n0

+set APP_HOME=%DIRNAME%

+

+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.

+set DEFAULT_JVM_OPTS=

+

+@rem Find java.exe

+if defined JAVA_HOME goto findJavaFromJavaHome

+

+set JAVA_EXE=java.exe

+%JAVA_EXE% -version >NUL 2>&1

+if "%ERRORLEVEL%" == "0" goto init

+

+echo.

+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.

+echo.

+echo Please set the JAVA_HOME variable in your environment to match the

+echo location of your Java installation.

+

+goto fail

+

+:findJavaFromJavaHome

+set JAVA_HOME=%JAVA_HOME:"=%

+set JAVA_EXE=%JAVA_HOME%/bin/java.exe

+

+if exist "%JAVA_EXE%" goto init

+

+echo.

+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%

+echo.

+echo Please set the JAVA_HOME variable in your environment to match the

+echo location of your Java installation.

+

+goto fail

+

+:init

+@rem Get command-line arguments, handling Windows variants

+

+if not "%OS%" == "Windows_NT" goto win9xME_args

+

+:win9xME_args

+@rem Slurp the command line arguments.

+set CMD_LINE_ARGS=

+set _SKIP=2

+

+:win9xME_args_slurp

+if "x%~1" == "x" goto execute

+

+set CMD_LINE_ARGS=%*

+

+:execute

+@rem Setup the command line

+

+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar

+

+@rem Execute Gradle

+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%

+

+:end

+@rem End local scope for the variables with windows NT shell

+if "%ERRORLEVEL%"=="0" goto mainEnd

+

+:fail

+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of

+rem the _cmd.exe /c_ return code!

+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1

+exit /b 1

+

+:mainEnd

+if "%OS%"=="Windows_NT" endlocal

+

+:omega

diff --git a/ui/text/RoundedBackground-Kotlin/lib/.gitignore b/ui/text/RoundedBackground-Kotlin/lib/.gitignore
new file mode 100644
index 00000000..796b96d1
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/lib/.gitignore
@@ -0,0 +1 @@
+/build
diff --git a/ui/text/RoundedBackground-Kotlin/lib/build.gradle b/ui/text/RoundedBackground-Kotlin/lib/build.gradle
new file mode 100644
index 00000000..6c499867
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/lib/build.gradle
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+apply plugin: 'com.android.library'
+
+apply plugin: 'kotlin-android'
+
+android {
+    compileSdkVersion rootProject.compileSdkVersion
+
+    defaultConfig {
+        minSdkVersion rootProject.minSdkVersion
+        targetSdkVersion rootProject.targetSdkVersion
+        versionCode 1
+        versionName "1.0"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
+    }
+
+}
+
+dependencies {
+    implementation "androidx.core:core-ktx:${ktxVersion}"
+    implementation "androidx.appcompat:appcompat:$androidxVersion"
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+}
\ No newline at end of file
diff --git a/ui/text/RoundedBackground-Kotlin/lib/src/main/AndroidManifest.xml b/ui/text/RoundedBackground-Kotlin/lib/src/main/AndroidManifest.xml
new file mode 100644
index 00000000..43a5eb06
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/lib/src/main/AndroidManifest.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2018 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<manifest
+    package="com.android.example.text.styling.roundedbg"/>
diff --git a/ui/text/RoundedBackground-Kotlin/lib/src/main/java/com/android/example/text/styling/roundedbg/LayoutExtensions.kt b/ui/text/RoundedBackground-Kotlin/lib/src/main/java/com/android/example/text/styling/roundedbg/LayoutExtensions.kt
new file mode 100644
index 00000000..f7478eb4
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/lib/src/main/java/com/android/example/text/styling/roundedbg/LayoutExtensions.kt
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.example.text.styling.roundedbg
+
+import android.os.Build
+import android.text.Layout
+
+// Extension functions for Layout object
+
+/**
+ * Android system default line spacing extra
+ */
+private const val DEFAULT_LINESPACING_EXTRA = 0f
+
+/**
+ * Android system default line spacing multiplier
+ */
+private const val DEFAULT_LINESPACING_MULTIPLIER = 1f
+
+/**
+ * Get the line bottom discarding the line spacing added.
+ */
+fun Layout.getLineBottomWithoutSpacing(line: Int): Int {
+    val lineBottom = getLineBottom(line)
+    val lastLineSpacingNotAdded = Build.VERSION.SDK_INT >= 19
+    val isLastLine = line == lineCount - 1
+
+    val lineBottomWithoutSpacing: Int
+    val lineSpacingExtra = spacingAdd
+    val lineSpacingMultiplier = spacingMultiplier
+    val hasLineSpacing = lineSpacingExtra != DEFAULT_LINESPACING_EXTRA
+        || lineSpacingMultiplier != DEFAULT_LINESPACING_MULTIPLIER
+
+    if (!hasLineSpacing || isLastLine && lastLineSpacingNotAdded) {
+        lineBottomWithoutSpacing = lineBottom
+    } else {
+        val extra: Float
+        if (lineSpacingMultiplier.compareTo(DEFAULT_LINESPACING_MULTIPLIER) != 0) {
+            val lineHeight = getLineHeight(line)
+            extra = lineHeight - (lineHeight - lineSpacingExtra) / lineSpacingMultiplier
+        } else {
+            extra = lineSpacingExtra
+        }
+
+        lineBottomWithoutSpacing = (lineBottom - extra).toInt()
+    }
+
+    return lineBottomWithoutSpacing
+}
+
+/**
+ * Get the line height of a line.
+ */
+fun Layout.getLineHeight(line: Int): Int {
+    return getLineTop(line + 1) - getLineTop(line)
+}
+
+/**
+ * Returns the top of the Layout after removing the extra padding applied by  the Layout.
+ */
+fun Layout.getLineTopWithoutPadding(line: Int): Int {
+    var lineTop = getLineTop(line)
+    if (line == 0) {
+        lineTop -= topPadding
+    }
+    return lineTop
+}
+
+/**
+ * Returns the bottom of the Layout after removing the extra padding applied by the Layout.
+ */
+fun Layout.getLineBottomWithoutPadding(line: Int): Int {
+    var lineBottom = getLineBottomWithoutSpacing(line)
+    if (line == lineCount - 1) {
+        lineBottom -= bottomPadding
+    }
+    return lineBottom
+}
\ No newline at end of file
diff --git a/ui/text/RoundedBackground-Kotlin/lib/src/main/java/com/android/example/text/styling/roundedbg/RoundedBgTextView.kt b/ui/text/RoundedBackground-Kotlin/lib/src/main/java/com/android/example/text/styling/roundedbg/RoundedBgTextView.kt
new file mode 100644
index 00000000..9f0d2881
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/lib/src/main/java/com/android/example/text/styling/roundedbg/RoundedBgTextView.kt
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.example.text.styling.roundedbg
+
+import android.content.Context
+import android.graphics.Canvas
+import android.text.Spanned
+import android.util.AttributeSet
+import androidx.appcompat.widget.AppCompatTextView
+import androidx.core.graphics.withTranslation
+
+/**
+ * A TextView that can draw rounded background to the portions of the text. See
+ * [TextRoundedBgHelper] for more information.
+ *
+ * See [TextRoundedBgAttributeReader] for supported attributes.
+ */
+class RoundedBgTextView : AppCompatTextView {
+
+    private val textRoundedBgHelper: TextRoundedBgHelper
+
+    @JvmOverloads
+    constructor(
+        context: Context,
+        attrs: AttributeSet? = null,
+        defStyleAttr: Int = android.R.attr.textViewStyle
+    ) : super(context, attrs, defStyleAttr) {
+        val attributeReader = TextRoundedBgAttributeReader(context, attrs)
+        textRoundedBgHelper = TextRoundedBgHelper(
+            horizontalPadding = attributeReader.horizontalPadding,
+            verticalPadding = attributeReader.verticalPadding,
+            drawable = attributeReader.drawable,
+            drawableLeft = attributeReader.drawableLeft,
+            drawableMid = attributeReader.drawableMid,
+            drawableRight = attributeReader.drawableRight
+        )
+    }
+
+    override fun onDraw(canvas: Canvas) {
+        // need to draw bg first so that text can be on top during super.onDraw()
+        if (text is Spanned && layout != null) {
+            canvas.withTranslation(totalPaddingLeft.toFloat(), totalPaddingTop.toFloat()) {
+                textRoundedBgHelper.draw(canvas, text as Spanned, layout)
+            }
+        }
+        super.onDraw(canvas)
+    }
+}
\ No newline at end of file
diff --git a/ui/text/RoundedBackground-Kotlin/lib/src/main/java/com/android/example/text/styling/roundedbg/TextRoundedBgAttributeReader.kt b/ui/text/RoundedBackground-Kotlin/lib/src/main/java/com/android/example/text/styling/roundedbg/TextRoundedBgAttributeReader.kt
new file mode 100644
index 00000000..5ecc41d9
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/lib/src/main/java/com/android/example/text/styling/roundedbg/TextRoundedBgAttributeReader.kt
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+*/
+package com.android.example.text.styling.roundedbg
+
+import android.content.Context
+import android.graphics.drawable.Drawable
+import android.util.AttributeSet
+import androidx.core.content.res.getDrawableOrThrow
+
+/**
+ * Reads default attributes that [TextRoundedBgHelper] needs from resources. The attributes read
+ * are:
+ *
+ * - chHorizontalPadding: the padding to be applied to left & right of the background
+ * - chVerticalPadding: the padding to be applied to top & bottom of the background
+ * - chDrawable: the drawable used to draw the background
+ * - chDrawableLeft: the drawable used to draw left edge of the background
+ * - chDrawableMid: the drawable used to draw for whole line
+ * - chDrawableRight: the drawable used to draw right edge of the background
+ */
+class TextRoundedBgAttributeReader(context: Context, attrs: AttributeSet?) {
+
+    val horizontalPadding: Int
+    val verticalPadding: Int
+    val drawable: Drawable
+    val drawableLeft: Drawable
+    val drawableMid: Drawable
+    val drawableRight: Drawable
+
+    init {
+        val typedArray = context.obtainStyledAttributes(
+            attrs,
+            R.styleable.TextRoundedBgHelper,
+            0,
+            R.style.RoundedBgTextView
+        )
+        horizontalPadding = typedArray.getDimensionPixelSize(
+            R.styleable.TextRoundedBgHelper_roundedTextHorizontalPadding,
+            0
+        )
+        verticalPadding = typedArray.getDimensionPixelSize(
+            R.styleable.TextRoundedBgHelper_roundedTextVerticalPadding,
+            0
+        )
+        drawable = typedArray.getDrawableOrThrow(
+            R.styleable.TextRoundedBgHelper_roundedTextDrawable
+        )
+        drawableLeft = typedArray.getDrawableOrThrow(
+            R.styleable.TextRoundedBgHelper_roundedTextDrawableLeft
+        )
+        drawableMid = typedArray.getDrawableOrThrow(
+            R.styleable.TextRoundedBgHelper_roundedTextDrawableMid
+        )
+        drawableRight = typedArray.getDrawableOrThrow(
+            R.styleable.TextRoundedBgHelper_roundedTextDrawableRight
+        )
+        typedArray.recycle()
+    }
+}
diff --git a/ui/text/RoundedBackground-Kotlin/lib/src/main/java/com/android/example/text/styling/roundedbg/TextRoundedBgHelper.kt b/ui/text/RoundedBackground-Kotlin/lib/src/main/java/com/android/example/text/styling/roundedbg/TextRoundedBgHelper.kt
new file mode 100644
index 00000000..262a5fe9
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/lib/src/main/java/com/android/example/text/styling/roundedbg/TextRoundedBgHelper.kt
@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+*/
+package com.android.example.text.styling.roundedbg
+
+import android.graphics.Canvas
+import android.graphics.drawable.Drawable
+import android.text.Annotation
+import android.text.Layout
+import android.text.Spanned
+
+/**
+ * Helper class to draw multi-line rounded background to certain parts of a text. The start/end
+ * positions of the backgrounds are annotated with [android.text.Annotation] class. Each annotation
+ * should have the annotation key set to **rounded**.
+ *
+ * i.e.:
+ * ```
+ *    <!--without the quotes at the begining and end Android strips the whitespace and also starts
+ *        the annotation at the wrong position-->
+ *    <string name="ltr">"this is <annotation key="rounded">a regular</annotation> paragraph."</string>
+ * ```
+ *
+ * **Note:** BiDi text is not supported.
+ *
+ * @param horizontalPadding the padding to be applied to left & right of the background
+ * @param verticalPadding the padding to be applied to top & bottom of the background
+ * @param drawable the drawable used to draw the background
+ * @param drawableLeft the drawable used to draw left edge of the background
+ * @param drawableMid the drawable used to draw for whole line
+ * @param drawableRight the drawable used to draw right edge of the background
+ */
+class TextRoundedBgHelper(
+    val horizontalPadding: Int,
+    verticalPadding: Int,
+    drawable: Drawable,
+    drawableLeft: Drawable,
+    drawableMid: Drawable,
+    drawableRight: Drawable
+) {
+
+    private val singleLineRenderer: TextRoundedBgRenderer by lazy {
+        SingleLineRenderer(
+            horizontalPadding = horizontalPadding,
+            verticalPadding = verticalPadding,
+            drawable = drawable
+        )
+    }
+
+    private val multiLineRenderer: TextRoundedBgRenderer by lazy {
+        MultiLineRenderer(
+            horizontalPadding = horizontalPadding,
+            verticalPadding = verticalPadding,
+            drawableLeft = drawableLeft,
+            drawableMid = drawableMid,
+            drawableRight = drawableRight
+        )
+    }
+
+    /**
+     * Call this function during onDraw of another widget such as TextView.
+     *
+     * @param canvas Canvas to draw onto
+     * @param text
+     * @param layout Layout that contains the text
+     */
+    fun draw(canvas: Canvas, text: Spanned, layout: Layout) {
+        // ideally the calculations here should be cached since they are not cheap. However, proper
+        // invalidation of the cache is required whenever anything related to text has changed.
+        val spans = text.getSpans(0, text.length, Annotation::class.java)
+        spans.forEach { span ->
+            if (span.value.equals("rounded")) {
+                val spanStart = text.getSpanStart(span)
+                val spanEnd = text.getSpanEnd(span)
+                val startLine = layout.getLineForOffset(spanStart)
+                val endLine = layout.getLineForOffset(spanEnd)
+
+                // start can be on the left or on the right depending on the language direction.
+                val startOffset = (layout.getPrimaryHorizontal(spanStart)
+                    + -1 * layout.getParagraphDirection(startLine) * horizontalPadding).toInt()
+                // end can be on the left or on the right depending on the language direction.
+                val endOffset = (layout.getPrimaryHorizontal(spanEnd)
+                    + layout.getParagraphDirection(endLine) * horizontalPadding).toInt()
+
+                val renderer = if (startLine == endLine) singleLineRenderer else multiLineRenderer
+                renderer.draw(canvas, layout, startLine, endLine, startOffset, endOffset)
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/ui/text/RoundedBackground-Kotlin/lib/src/main/java/com/android/example/text/styling/roundedbg/TextRoundedBgRenderer.kt b/ui/text/RoundedBackground-Kotlin/lib/src/main/java/com/android/example/text/styling/roundedbg/TextRoundedBgRenderer.kt
new file mode 100644
index 00000000..37d814a7
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/lib/src/main/java/com/android/example/text/styling/roundedbg/TextRoundedBgRenderer.kt
@@ -0,0 +1,209 @@
+/*
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+*/
+package com.android.example.text.styling.roundedbg
+
+import android.graphics.Canvas
+import android.graphics.drawable.Drawable
+import android.text.Layout
+import kotlin.math.max
+import kotlin.math.min
+
+/**
+ * Base class for single and multi line rounded background renderers.
+ *
+ * @param horizontalPadding the padding to be applied to left & right of the background
+ * @param verticalPadding the padding to be applied to top & bottom of the background
+ */
+internal abstract class TextRoundedBgRenderer(
+        val horizontalPadding: Int,
+        val verticalPadding: Int
+) {
+
+    /**
+     * Draw the background that starts at the {@code startOffset} and ends at {@code endOffset}.
+     *
+     * @param canvas Canvas to draw onto
+     * @param layout Layout that contains the text
+     * @param startLine the start line for the background
+     * @param endLine the end line for the background
+     * @param startOffset the character offset that the background should start at
+     * @param endOffset the character offset that the background should end at
+     */
+    abstract fun draw(
+        canvas: Canvas,
+        layout: Layout,
+        startLine: Int,
+        endLine: Int,
+        startOffset: Int,
+        endOffset: Int
+    )
+
+    /**
+     * Get the top offset of the line and add padding into account so that there is a gap between
+     * top of the background and top of the text.
+     *
+     * @param layout Layout object that contains the text
+     * @param line line number
+     */
+    protected fun getLineTop(layout: Layout, line: Int): Int {
+        return layout.getLineTopWithoutPadding(line) - verticalPadding
+    }
+
+    /**
+     * Get the bottom offset of the line and add padding into account so that there is a gap between
+     * bottom of the background and bottom of the text.
+     *
+     * @param layout Layout object that contains the text
+     * @param line line number
+     */
+    protected fun getLineBottom(layout: Layout, line: Int): Int {
+        return layout.getLineBottomWithoutPadding(line) + verticalPadding
+    }
+}
+
+/**
+ * Draws the background for text that starts and ends on the same line.
+ *
+ * @param horizontalPadding the padding to be applied to left & right of the background
+ * @param verticalPadding the padding to be applied to top & bottom of the background
+ * @param drawable the drawable used to draw the background
+ */
+internal class SingleLineRenderer(
+    horizontalPadding: Int,
+    verticalPadding: Int,
+    val drawable: Drawable
+) : TextRoundedBgRenderer(horizontalPadding, verticalPadding) {
+
+    override fun draw(
+        canvas: Canvas,
+        layout: Layout,
+        startLine: Int,
+        endLine: Int,
+        startOffset: Int,
+        endOffset: Int
+    ) {
+        val lineTop = getLineTop(layout, startLine)
+        val lineBottom = getLineBottom(layout, startLine)
+        // get min of start/end for left, and max of start/end for right since we don't
+        // the language direction
+        val left = min(startOffset, endOffset)
+        val right = max(startOffset, endOffset)
+        drawable.setBounds(left, lineTop, right, lineBottom)
+        drawable.draw(canvas)
+    }
+}
+
+/**
+ * Draws the background for text that starts and ends on different lines.
+ *
+ * @param horizontalPadding the padding to be applied to left & right of the background
+ * @param verticalPadding the padding to be applied to top & bottom of the background
+ * @param drawableLeft the drawable used to draw left edge of the background
+ * @param drawableMid the drawable used to draw for whole line
+ * @param drawableRight the drawable used to draw right edge of the background
+ */
+internal class MultiLineRenderer(
+    horizontalPadding: Int,
+    verticalPadding: Int,
+    val drawableLeft: Drawable,
+    val drawableMid: Drawable,
+    val drawableRight: Drawable
+) : TextRoundedBgRenderer(horizontalPadding, verticalPadding) {
+
+    override fun draw(
+        canvas: Canvas,
+        layout: Layout,
+        startLine: Int,
+        endLine: Int,
+        startOffset: Int,
+        endOffset: Int
+    ) {
+        // draw the first line
+        val paragDir = layout.getParagraphDirection(startLine)
+        val lineEndOffset = if (paragDir == Layout.DIR_RIGHT_TO_LEFT) {
+            layout.getLineLeft(startLine) - horizontalPadding
+        } else {
+            layout.getLineRight(startLine) + horizontalPadding
+        }.toInt()
+
+        var lineBottom = getLineBottom(layout, startLine)
+        var lineTop = getLineTop(layout, startLine)
+        drawStart(canvas, startOffset, lineTop, lineEndOffset, lineBottom)
+
+        // for the lines in the middle draw the mid drawable
+        for (line in startLine + 1 until endLine) {
+            lineTop = getLineTop(layout, line)
+            lineBottom = getLineBottom(layout, line)
+            drawableMid.setBounds(
+                (layout.getLineLeft(line).toInt() - horizontalPadding),
+                lineTop,
+                (layout.getLineRight(line).toInt() + horizontalPadding),
+                lineBottom
+            )
+            drawableMid.draw(canvas)
+        }
+
+        val lineStartOffset = if (paragDir == Layout.DIR_RIGHT_TO_LEFT) {
+            layout.getLineRight(startLine) + horizontalPadding
+        } else {
+            layout.getLineLeft(startLine) - horizontalPadding
+        }.toInt()
+
+        // draw the last line
+        lineBottom = getLineBottom(layout, endLine)
+        lineTop = getLineTop(layout, endLine)
+
+        drawEnd(canvas, lineStartOffset, lineTop, endOffset, lineBottom)
+    }
+
+    /**
+     * Draw the first line of a multiline annotation. Handles LTR/RTL.
+     *
+     * @param canvas Canvas to draw onto
+     * @param start start coordinate for the background
+     * @param top top coordinate for the background
+     * @param end end coordinate for the background
+     * @param bottom bottom coordinate for the background
+     */
+    private fun drawStart(canvas: Canvas, start: Int, top: Int, end: Int, bottom: Int) {
+        if (start > end) {
+            drawableRight.setBounds(end, top, start, bottom)
+            drawableRight.draw(canvas)
+        } else {
+            drawableLeft.setBounds(start, top, end, bottom)
+            drawableLeft.draw(canvas)
+        }
+    }
+
+    /**
+     * Draw the last line of a multiline annotation. Handles LTR/RTL.
+     *
+     * @param canvas Canvas to draw onto
+     * @param start start coordinate for the background
+     * @param top top position for the background
+     * @param end end coordinate for the background
+     * @param bottom bottom coordinate for the background
+     */
+    private fun drawEnd(canvas: Canvas, start: Int, top: Int, end: Int, bottom: Int) {
+        if (start > end) {
+            drawableLeft.setBounds(end, top, start, bottom)
+            drawableLeft.draw(canvas)
+        } else {
+            drawableRight.setBounds(start, top, end, bottom)
+            drawableRight.draw(canvas)
+        }
+    }
+}
\ No newline at end of file
diff --git a/ui/text/RoundedBackground-Kotlin/lib/src/main/res/drawable/rounded_text_bg.xml b/ui/text/RoundedBackground-Kotlin/lib/src/main/res/drawable/rounded_text_bg.xml
new file mode 100644
index 00000000..0683b1b9
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/lib/src/main/res/drawable/rounded_text_bg.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2018 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="@color/roundedTextBg"/>
+    <stroke android:width="@dimen/roundedTextBorderWidth" android:color="@color/roundedTextBorder"/>
+    <corners android:radius="@dimen/roundedTextBorderRadius"/>
+</shape>
\ No newline at end of file
diff --git a/ui/text/RoundedBackground-Kotlin/lib/src/main/res/drawable/rounded_text_bg_left.xml b/ui/text/RoundedBackground-Kotlin/lib/src/main/res/drawable/rounded_text_bg_left.xml
new file mode 100644
index 00000000..5d02c93d
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/lib/src/main/res/drawable/rounded_text_bg_left.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2018 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="@color/roundedTextBg"/>
+    <stroke android:width="@dimen/roundedTextBorderWidth" android:color="@color/roundedTextBorder"/>
+    <corners android:topLeftRadius="@dimen/roundedTextBorderRadius"
+             android:bottomLeftRadius="@dimen/roundedTextBorderRadius"/>
+</shape>
\ No newline at end of file
diff --git a/ui/text/RoundedBackground-Kotlin/lib/src/main/res/drawable/rounded_text_bg_mid.xml b/ui/text/RoundedBackground-Kotlin/lib/src/main/res/drawable/rounded_text_bg_mid.xml
new file mode 100644
index 00000000..e4c2c570
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/lib/src/main/res/drawable/rounded_text_bg_mid.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2018 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="@color/roundedTextBg"/>
+    <stroke android:width="@dimen/roundedTextBorderWidth" android:color="@color/roundedTextBorder"/>
+</shape>
\ No newline at end of file
diff --git a/ui/text/RoundedBackground-Kotlin/lib/src/main/res/drawable/rounded_text_bg_right.xml b/ui/text/RoundedBackground-Kotlin/lib/src/main/res/drawable/rounded_text_bg_right.xml
new file mode 100644
index 00000000..cf011c5c
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/lib/src/main/res/drawable/rounded_text_bg_right.xml
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2018 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="@color/roundedTextBg"/>
+    <stroke android:width="@dimen/roundedTextBorderWidth" android:color="@color/roundedTextBorder"/>
+    <corners android:topRightRadius="@dimen/roundedTextBorderRadius"
+             android:bottomRightRadius="@dimen/roundedTextBorderRadius"/>
+</shape>
\ No newline at end of file
diff --git a/ui/text/RoundedBackground-Kotlin/lib/src/main/res/values/attrs.xml b/ui/text/RoundedBackground-Kotlin/lib/src/main/res/values/attrs.xml
new file mode 100644
index 00000000..737ae07c
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/lib/src/main/res/values/attrs.xml
@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2018 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<resources>
+    <declare-styleable name="TextRoundedBgHelper">
+        <attr name="roundedTextHorizontalPadding" format="dimension"/>
+        <attr name="roundedTextVerticalPadding" format="dimension"/>
+        <attr name="roundedTextDrawable" format="reference"/>
+        <attr name="roundedTextDrawableLeft" format="reference"/>
+        <attr name="roundedTextDrawableMid" format="reference"/>
+        <attr name="roundedTextDrawableRight" format="reference"/>
+    </declare-styleable>
+</resources>
\ No newline at end of file
diff --git a/ui/text/RoundedBackground-Kotlin/lib/src/main/res/values/colors.xml b/ui/text/RoundedBackground-Kotlin/lib/src/main/res/values/colors.xml
new file mode 100644
index 00000000..c26ac6af
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/lib/src/main/res/values/colors.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2018 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<resources>
+    <color name="roundedTextBg">#554fC3f7</color>
+    <color name="roundedTextBorder">#DD0277BD</color>
+</resources>
diff --git a/ui/text/RoundedBackground-Kotlin/lib/src/main/res/values/dimens.xml b/ui/text/RoundedBackground-Kotlin/lib/src/main/res/values/dimens.xml
new file mode 100644
index 00000000..dbc7f49e
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/lib/src/main/res/values/dimens.xml
@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2018 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<resources>
+    <dimen name="roundedTextBorderRadius">4dp</dimen>
+    <dimen name="roundedTextBorderWidth">1dp</dimen>
+</resources>
\ No newline at end of file
diff --git a/ui/text/RoundedBackground-Kotlin/lib/src/main/res/values/styles.xml b/ui/text/RoundedBackground-Kotlin/lib/src/main/res/values/styles.xml
new file mode 100644
index 00000000..9bffef3d
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/lib/src/main/res/values/styles.xml
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ Copyright 2018 The Android Open Source Project
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~      http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<resources>
+
+    <style name="RoundedBgTextView" parent="@android:style/Widget.TextView">
+        <item name="roundedTextHorizontalPadding">2dp</item>
+        <item name="roundedTextVerticalPadding">2dp</item>
+        <item name="roundedTextDrawable">@drawable/rounded_text_bg</item>
+        <item name="roundedTextDrawableLeft">@drawable/rounded_text_bg_left</item>
+        <item name="roundedTextDrawableMid">@drawable/rounded_text_bg_mid</item>
+        <item name="roundedTextDrawableRight">@drawable/rounded_text_bg_right</item>
+    </style>
+
+</resources>
diff --git a/ui/text/RoundedBackground-Kotlin/rounded_bg.png b/ui/text/RoundedBackground-Kotlin/rounded_bg.png
new file mode 100644
index 00000000..a62a64ef
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/rounded_bg.png
diff --git a/ui/text/RoundedBackground-Kotlin/settings.gradle b/ui/text/RoundedBackground-Kotlin/settings.gradle
new file mode 100644
index 00000000..3cbe2493
--- /dev/null
+++ b/ui/text/RoundedBackground-Kotlin/settings.gradle
@@ -0,0 +1 @@
+include ':app', ':lib'
diff --git a/ui/text/screenshots/rounded_bg.png b/ui/text/screenshots/rounded_bg.png
new file mode 100644
index 00000000..1e9acddf
--- /dev/null
+++ b/ui/text/screenshots/rounded_bg.png