1 files changed, 70 insertions, 0 deletions
diff --git a/src/com/android/tv/dvr/ui/FadeBackground.java b/src/com/android/tv/dvr/ui/FadeBackground.java
new file mode 100644
index 00000000..4f06ebcf
--- /dev/null
+++ b/src/com/android/tv/dvr/ui/FadeBackground.java
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2016 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.tv.dvr.ui;
+
+import android.animation.Animator;
+import android.animation.ObjectAnimator;
+import android.content.Context;
+import android.content.res.TypedArray;
+import android.graphics.Color;
+import android.graphics.drawable.ColorDrawable;
+import android.graphics.drawable.Drawable;
+import android.transition.Transition;
+import android.transition.TransitionValues;
+import android.transition.Visibility;
+import android.util.AttributeSet;
+import android.view.ViewGroup;
+
+import com.android.tv.R;
+
+/**
+ * This transition fades in/out of the background of the view by changing the background color.
+ */
+public class FadeBackground extends Transition {
+    private final int mMode;
+
+    public FadeBackground(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.FadeBackground);
+        mMode = a.getInt(R.styleable.FadeBackground_fadingMode, Visibility.MODE_IN);
+        a.recycle();
+    }
+
+    @Override
+    public void captureStartValues(TransitionValues transitionValues) { }
+
+    @Override
+    public void captureEndValues(TransitionValues transitionValues) { }
+
+    @Override
+    public Animator createAnimator(ViewGroup sceneRoot, TransitionValues startValues,
+            TransitionValues endValues) {
+        if (startValues == null || endValues == null) {
+            return null;
+        }
+        Drawable background = endValues.view.getBackground();
+        if (background instanceof ColorDrawable) {
+            int color = ((ColorDrawable) background).getColor();
+            int transparentColor = Color.argb(0, Color.red(color), Color.green(color),
+                    Color.blue(color));
+            return mMode == Visibility.MODE_OUT
+                    ? ObjectAnimator.ofArgb(background, "color", transparentColor)
+                    : ObjectAnimator.ofArgb(background, "color", transparentColor, color);
+        }
+        return null;
+    }
+}