| /* |
| * 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; |
| } |
| } |