Implemented autofill callbacks in kotlin autofill sample.

Disable AutoComplete in AutoCompleteTextView when AFF
is working.

Bug: 38182790
Test: manual
Change-Id: If6de507dc2acf2033f2930d8e1c2cae85903b9a5

9 files changed, 255 insertions, 18 deletions

diff --git a/input/autofill/AutofillFramework/kotlinApp/Application/src/main/AndroidManifest.xml b/input/autofill/AutofillFramework/kotlinApp/Application/src/main/AndroidManifest.xml
index eb1f43c2..787a6dba 100644
--- a/input/autofill/AutofillFramework/kotlinApp/Application/src/main/AndroidManifest.xml
+++ b/input/autofill/AutofillFramework/kotlinApp/Application/src/main/AndroidManifest.xml
@@ -16,9 +16,9 @@
 -->
 
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
-          package="com.example.android.autofillframework"
-          android:versionCode="1"
-          android:versionName="1.0">
+    package="com.example.android.autofillframework"
+    android:versionCode="1"
+    android:versionName="1.0">
 
     <application
         android:allowBackup="true"
@@ -36,14 +36,19 @@
             </intent-filter>
         </activity>
         <activity
-            android:name=".app.LoginActivity"
+            android:name=".app.StandardSignInActivity"
             android:label="AF StandardLogin"
-            android:taskAffinity=".LoginActivity">
+            android:taskAffinity=".StandardSignInActivity">
         </activity>
         <activity
-            android:name=".app.VirtualLoginActivity"
+            android:name=".app.StandardAutoCompleteSignInActivity"
+            android:label="AF StandardLogin"
+            android:taskAffinity=".StandardAutoCompleteSignInActivity" />
+        <activity
+            android:name=".app.VirtualSignInActivity"
             android:label="AF VirtualLogin"
-            android:taskAffinity=".VirtualLoginActivity">
+            android:taskAffinity=".VirtualSignInActivity">
+
         </activity>
         <activity android:name=".app.WelcomeActivity" />
         <activity
diff --git a/input/autofill/AutofillFramework/kotlinApp/Application/src/main/java/com/example/android/autofillframework/app/CustomVirtualView.kt b/input/autofill/AutofillFramework/kotlinApp/Application/src/main/java/com/example/android/autofillframework/app/CustomVirtualView.kt
index bef16afe..b230db47 100644
--- a/input/autofill/AutofillFramework/kotlinApp/Application/src/main/java/com/example/android/autofillframework/app/CustomVirtualView.kt
+++ b/input/autofill/AutofillFramework/kotlinApp/Application/src/main/java/com/example/android/autofillframework/app/CustomVirtualView.kt
@@ -183,8 +183,8 @@ class CustomVirtualView(context: Context, attrs: AttributeSet) : View(context, a
     }
 
     private class Item internal constructor(val line: Line, val id: Int, val hints: Array<String>?,
-                                            val type: Int, var text: CharSequence,
-                                            val editable: Boolean, val sanitized: Boolean) {
+            val type: Int, var text: CharSequence,
+            val editable: Boolean, val sanitized: Boolean) {
         var focused = false
 
         override fun toString(): String {
@@ -199,7 +199,7 @@ class CustomVirtualView(context: Context, attrs: AttributeSet) : View(context, a
     }
 
     private inner class Line constructor(val idEntry: String, label: String, hints: Array<String>,
-                                         text: String, sanitized: Boolean) {
+            text: String, sanitized: Boolean) {
 
         // Boundaries of the text field, relative to the CustomView
         internal val bounds = Rect()
diff --git a/input/autofill/AutofillFramework/kotlinApp/Application/src/main/java/com/example/android/autofillframework/app/MainActivity.kt b/input/autofill/AutofillFramework/kotlinApp/Application/src/main/java/com/example/android/autofillframework/app/MainActivity.kt
index 1759de25..c7c458d4 100644
--- a/input/autofill/AutofillFramework/kotlinApp/Application/src/main/java/com/example/android/autofillframework/app/MainActivity.kt
+++ b/input/autofill/AutofillFramework/kotlinApp/Application/src/main/java/com/example/android/autofillframework/app/MainActivity.kt
@@ -19,6 +19,7 @@ import android.os.Bundle
 import android.support.v7.app.AppCompatActivity
 import com.example.android.autofillframework.R
 import kotlinx.android.synthetic.main.activity_main.creditCardCheckoutButton
+import kotlinx.android.synthetic.main.activity_main.standardLoginWithAutoCompleteButton
 import kotlinx.android.synthetic.main.activity_main.standardViewSignInButton
 import kotlinx.android.synthetic.main.activity_main.virtualViewSignInButton
 
@@ -33,6 +34,7 @@ class MainActivity : AppCompatActivity() {
         standardViewSignInButton.setOnClickListener { standardViewSignIn() }
         virtualViewSignInButton.setOnClickListener { virtualViewSignIn() }
         creditCardCheckoutButton.setOnClickListener { creditCardCheckout() }
+        standardLoginWithAutoCompleteButton.setOnClickListener { standardAutoCompleteSignIn() }
     }
 
     private fun creditCardCheckout() {
@@ -41,12 +43,17 @@ class MainActivity : AppCompatActivity() {
     }
 
     private fun standardViewSignIn() {
-        val intent = LoginActivity.getStartActivityIntent(this)
+        val intent = StandardSignInActivity.getStartActivityIntent(this)
+        startActivity(intent)
+    }
+
+    private fun standardAutoCompleteSignIn() {
+        val intent = StandardAutoCompleteSignInActivity.getStartActivityIntent(this)
         startActivity(intent)
     }
 
     private fun virtualViewSignIn() {
-        val intent = VirtualLoginActivity.getStartActivityIntent(this)
+        val intent = VirtualSignInActivity.getStartActivityIntent(this)
         startActivity(intent)
     }
 }
\ No newline at end of file
diff --git a/input/autofill/AutofillFramework/kotlinApp/Application/src/main/java/com/example/android/autofillframework/app/StandardAutoCompleteSignInActivity.kt b/input/autofill/AutofillFramework/kotlinApp/Application/src/main/java/com/example/android/autofillframework/app/StandardAutoCompleteSignInActivity.kt
new file mode 100644
index 00000000..21eb4d70
--- /dev/null
+++ b/input/autofill/AutofillFramework/kotlinApp/Application/src/main/java/com/example/android/autofillframework/app/StandardAutoCompleteSignInActivity.kt
@@ -0,0 +1,119 @@
+/*
+ * Copyright (C) 2017 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.example.android.autofillframework.app
+
+import android.content.Context
+import android.content.Intent
+import android.os.Bundle
+import android.support.v7.app.AppCompatActivity
+import android.util.Log
+import android.view.View
+import android.view.autofill.AutofillManager
+import android.widget.ArrayAdapter
+import android.widget.AutoCompleteTextView
+import android.widget.Toast
+import com.example.android.autofillframework.CommonUtil.TAG
+import com.example.android.autofillframework.R
+import kotlinx.android.synthetic.main.login_with_autocomplete_activity.clear
+import kotlinx.android.synthetic.main.login_with_autocomplete_activity.login
+import kotlinx.android.synthetic.main.login_with_autocomplete_activity.passwordField
+import kotlinx.android.synthetic.main.login_with_autocomplete_activity.usernameField
+
+class StandardAutoCompleteSignInActivity : AppCompatActivity() {
+    private var mAutofillReceived = false
+    private var mAutofillCallback: AutofillManager.AutofillCallback? = null
+    private var mAutofillManager: AutofillManager? = null
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        setContentView(R.layout.login_with_autocomplete_activity)
+
+        login.setOnClickListener { submitLogin() }
+        clear.setOnClickListener { resetFields() }
+        mAutofillCallback = MyAutofillCallback()
+        mAutofillManager = getSystemService(AutofillManager::class.java)
+        val mockAutocompleteAdapter = ArrayAdapter.createFromResource(this, R.array.mock_autocomplete_sign_in_suggestions,
+                android.R.layout.simple_dropdown_item_1line)
+        usernameField.setAdapter(mockAutocompleteAdapter)
+    }
+
+    override fun onResume() {
+        super.onResume()
+        mAutofillManager?.registerCallback(mAutofillCallback)
+    }
+
+    override fun onPause() {
+        super.onPause()
+        mAutofillManager?.unregisterCallback(mAutofillCallback)
+    }
+
+    private fun resetFields() {
+        usernameField.setText("")
+        passwordField.setText("")
+    }
+
+    /**
+     * Emulates a login action.
+     */
+    private fun submitLogin() {
+        val username = usernameField.text.toString()
+        val password = passwordField.text.toString()
+        val valid = isValidCredentials(username, password)
+        if (valid) {
+            val intent = WelcomeActivity.getStartActivityIntent(this@StandardAutoCompleteSignInActivity)
+            startActivity(intent)
+            finish()
+        } else {
+            Toast.makeText(this, "Authentication failed.", Toast.LENGTH_SHORT).show()
+        }
+    }
+
+    /**
+     * Dummy implementation for demo purposes. A real service should use secure mechanisms to
+     * authenticate users.
+     */
+    fun isValidCredentials(username: String?, password: String?): Boolean {
+        return username != null && password != null && username == password
+    }
+
+    private inner class MyAutofillCallback : AutofillManager.AutofillCallback() {
+        override fun onAutofillEvent(view: View, event: Int) {
+            super.onAutofillEvent(view, event)
+            if (view is AutoCompleteTextView) {
+                when (event) {
+                    AutofillManager.AutofillCallback.EVENT_INPUT_UNAVAILABLE,
+                    AutofillManager.AutofillCallback.EVENT_INPUT_HIDDEN -> if (!mAutofillReceived) {
+                        view.showDropDown()
+                    }
+                    AutofillManager.AutofillCallback.EVENT_INPUT_SHOWN -> {
+                        mAutofillReceived = true
+                        view.setAdapter(null)
+                    }
+                    else -> Log.d(TAG, "Unexpected callback: " + event)
+                }
+            }
+        }
+    }
+
+    companion object {
+
+        fun getStartActivityIntent(context: Context): Intent {
+            val intent = Intent(context, StandardAutoCompleteSignInActivity::class.java)
+            return intent
+        }
+    }
+}
\ No newline at end of file
diff --git a/input/autofill/AutofillFramework/kotlinApp/Application/src/main/java/com/example/android/autofillframework/app/LoginActivity.kt b/input/autofill/AutofillFramework/kotlinApp/Application/src/main/java/com/example/android/autofillframework/app/StandardSignInActivity.kt
index 8bdc1c33..971bd167 100644
--- a/input/autofill/AutofillFramework/kotlinApp/Application/src/main/java/com/example/android/autofillframework/app/LoginActivity.kt
+++ b/input/autofill/AutofillFramework/kotlinApp/Application/src/main/java/com/example/android/autofillframework/app/StandardSignInActivity.kt
@@ -28,7 +28,7 @@ import kotlinx.android.synthetic.main.login_activity.passwordField
 import kotlinx.android.synthetic.main.login_activity.usernameField
 
 
-class LoginActivity : AppCompatActivity() {
+class StandardSignInActivity : AppCompatActivity() {
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -50,7 +50,7 @@ class LoginActivity : AppCompatActivity() {
         val password = passwordField.text.toString()
         val valid = isValidCredentials(username, password)
         if (valid) {
-            val intent = WelcomeActivity.getStartActivityIntent(this@LoginActivity)
+            val intent = WelcomeActivity.getStartActivityIntent(this@StandardSignInActivity)
             startActivity(intent)
             finish()
         } else {
@@ -69,7 +69,7 @@ class LoginActivity : AppCompatActivity() {
     companion object {
 
         fun getStartActivityIntent(context: Context): Intent {
-            val intent = Intent(context, LoginActivity::class.java)
+            val intent = Intent(context, StandardSignInActivity::class.java)
             return intent
         }
     }
diff --git a/input/autofill/AutofillFramework/kotlinApp/Application/src/main/java/com/example/android/autofillframework/app/VirtualLoginActivity.kt b/input/autofill/AutofillFramework/kotlinApp/Application/src/main/java/com/example/android/autofillframework/app/VirtualSignInActivity.kt
index 52081afd..6d86da95 100644
--- a/input/autofill/AutofillFramework/kotlinApp/Application/src/main/java/com/example/android/autofillframework/app/VirtualLoginActivity.kt
+++ b/input/autofill/AutofillFramework/kotlinApp/Application/src/main/java/com/example/android/autofillframework/app/VirtualSignInActivity.kt
@@ -26,7 +26,7 @@ import kotlinx.android.synthetic.main.virtual_login_activity.custom_view
 import kotlinx.android.synthetic.main.virtual_login_activity.login
 
 
-class VirtualLoginActivity : AppCompatActivity() {
+class VirtualSignInActivity : AppCompatActivity() {
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -49,7 +49,7 @@ class VirtualLoginActivity : AppCompatActivity() {
         val password = custom_view.passwordText.toString()
         val valid = isValidCredentials(username, password)
         if (valid) {
-            val intent = WelcomeActivity.getStartActivityIntent(this@VirtualLoginActivity)
+            val intent = WelcomeActivity.getStartActivityIntent(this@VirtualSignInActivity)
             startActivity(intent)
             finish()
         } else {
@@ -68,7 +68,7 @@ class VirtualLoginActivity : AppCompatActivity() {
     companion object {
 
         fun getStartActivityIntent(context: Context): Intent {
-            val intent = Intent(context, VirtualLoginActivity::class.java)
+            val intent = Intent(context, VirtualSignInActivity::class.java)
             return intent
         }
     }
diff --git a/input/autofill/AutofillFramework/kotlinApp/Application/src/main/res/layout/activity_main.xml b/input/autofill/AutofillFramework/kotlinApp/Application/src/main/res/layout/activity_main.xml
index 26d0657d..b2510b07 100644
--- a/input/autofill/AutofillFramework/kotlinApp/Application/src/main/res/layout/activity_main.xml
+++ b/input/autofill/AutofillFramework/kotlinApp/Application/src/main/res/layout/activity_main.xml
@@ -30,6 +30,12 @@
         android:text="@string/standard_view_sign_in" />
 
     <Button
+        android:id="@+id/standardLoginWithAutoCompleteButton"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="@string/standard_view_autocomplete_sign_in"/>
+
+    <Button
         android:id="@+id/virtualViewSignInButton"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
diff --git a/input/autofill/AutofillFramework/kotlinApp/Application/src/main/res/layout/login_with_autocomplete_activity.xml b/input/autofill/AutofillFramework/kotlinApp/Application/src/main/res/layout/login_with_autocomplete_activity.xml
new file mode 100644
index 00000000..1906790a
--- /dev/null
+++ b/input/autofill/AutofillFramework/kotlinApp/Application/src/main/res/layout/login_with_autocomplete_activity.xml
@@ -0,0 +1,93 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+ * Copyright (C) 2017 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.
+-->
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/standardLoginLayout"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:focusable="true"
+    android:focusableInTouchMode="true"
+    android:orientation="vertical"
+    android:paddingBottom="@dimen/activity_vertical_margin"
+    android:paddingLeft="@dimen/activity_horizontal_margin"
+    android:paddingRight="@dimen/activity_horizontal_margin"
+    android:paddingTop="@dimen/activity_vertical_margin">
+
+    <RelativeLayout
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center">
+
+        <TextView
+            android:id="@+id/usernameLabel"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginEnd="20dp"
+            android:importantForAutofill="no"
+            android:labelFor="@+id/usernameField"
+            android:text="@string/username_label" />
+
+        <AutoCompleteTextView
+            android:id="@+id/usernameField"
+            android:layout_width="200sp"
+            android:layout_height="wrap_content"
+            android:layout_alignBaseline="@+id/usernameLabel"
+            android:layout_toEndOf="@id/usernameLabel"
+            android:autofillHints="username"
+            android:inputType="textPersonName" />
+
+        <TextView
+            android:id="@+id/passwordLabel"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_alignStart="@+id/usernameLabel"
+            android:layout_below="@+id/usernameLabel"
+            android:layout_marginTop="20dp"
+            android:importantForAutofill="no"
+            android:text="@string/password_label"
+            android:labelFor="@+id/passwordField"/>
+
+        <EditText
+            android:id="@+id/passwordField"
+            android:layout_width="200sp"
+            android:layout_height="wrap_content"
+            android:layout_alignBaseline="@+id/passwordLabel"
+            android:layout_alignStart="@+id/usernameField"
+            android:autofillHints="password"
+            android:inputType="textPassword" />
+    </RelativeLayout>
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="20dp"
+        android:gravity="center"
+        android:orientation="horizontal">
+
+        <Button
+            android:id="@+id/clear"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="Clear" />
+
+        <Button
+            android:id="@+id/login"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="Login" />
+    </LinearLayout>
+
+</LinearLayout>
\ No newline at end of file
diff --git a/input/autofill/AutofillFramework/kotlinApp/Application/src/main/res/values/strings.xml b/input/autofill/AutofillFramework/kotlinApp/Application/src/main/res/values/strings.xml
index f9448a74..ffb8495a 100644
--- a/input/autofill/AutofillFramework/kotlinApp/Application/src/main/res/values/strings.xml
+++ b/input/autofill/AutofillFramework/kotlinApp/Application/src/main/res/values/strings.xml
@@ -22,6 +22,8 @@
     <string name="password_label">Password</string>
     <string name="welcome_text">You have successfully signed in!</string>
     <string name="standard_view_sign_in">Sign in using standard views</string>
+    <string name="standard_view_autocomplete_sign_in">Sign in using standard views that
+        trigger AutoComplete dialogs when focused</string>
     <string name="virtual_view_sign_in">Sign in using virtual views</string>
     <string name="credit_card_checkout">Credit Card check out</string>
     <string name="autofill_sign_in_prompt">Tap to sign in.</string>
@@ -104,4 +106,9 @@
         <item>2024</item>
     </string-array>
 
+    <string-array name="mock_autocomplete_sign_in_suggestions">
+        <item>user-1</item>
+        <item>user-2</item>
+    </string-array>
+
 </resources>