1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.android.test.uibench; 17 18 import android.animation.ObjectAnimator; 19 import android.animation.ValueAnimator; 20 import android.content.Context; 21 import android.graphics.Canvas; 22 import android.graphics.ColorFilter; 23 import android.graphics.PixelFormat; 24 import android.graphics.Color; 25 import android.graphics.Paint; 26 import android.graphics.drawable.Drawable; 27 import android.os.Bundle; 28 import androidx.appcompat.app.AppCompatActivity; 29 import android.view.View; 30 31 /** 32 * Draws hundreds of levels of overdraw over the content area. 33 * 34 * This should all be optimized out by the renderer. 35 */ 36 public class FullscreenOverdrawActivity extends AppCompatActivity { 37 private class OverdrawDrawable extends Drawable { 38 Paint paint = new Paint(); 39 int mColorValue = 0; 40 41 @SuppressWarnings("unused") setColorValue(int colorValue)42 public void setColorValue(int colorValue) { 43 mColorValue = colorValue; 44 invalidateSelf(); 45 } 46 47 @Override draw(Canvas canvas)48 public void draw(Canvas canvas) { 49 paint.setColor(Color.rgb(mColorValue, 255 - mColorValue, 255)); 50 51 for (int i = 0; i < 400; i++) { 52 canvas.drawRect(getBounds(), paint); 53 } 54 } 55 56 @Override setAlpha(int alpha)57 public void setAlpha(int alpha) { 58 } 59 60 @Override setColorFilter(ColorFilter colorFilter)61 public void setColorFilter(ColorFilter colorFilter) { 62 } 63 64 @Override getOpacity()65 public int getOpacity() { 66 return PixelFormat.OPAQUE; 67 } 68 } 69 @Override onCreate(Bundle savedInstanceState)70 protected void onCreate(Bundle savedInstanceState) { 71 super.onCreate(savedInstanceState); 72 73 OverdrawDrawable overdraw = new OverdrawDrawable(); 74 getWindow().setBackgroundDrawable(overdraw); 75 76 setContentView(new View(this)); 77 78 ObjectAnimator objectAnimator = ObjectAnimator.ofInt(overdraw, "colorValue", 0, 255); 79 objectAnimator.setRepeatMode(ValueAnimator.REVERSE); 80 objectAnimator.setRepeatCount(ValueAnimator.INFINITE); 81 objectAnimator.start(); 82 } 83 } 84