1 /* 2 * Copyright (C) 2014 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 17 package com.android.test.hwui; 18 19 import android.app.Activity; 20 import android.graphics.Canvas; 21 import android.graphics.Paint; 22 import android.graphics.PorterDuff; 23 import android.graphics.SurfaceTexture; 24 import android.os.Bundle; 25 import android.view.Gravity; 26 import android.view.Surface; 27 import android.view.TextureView; 28 import android.widget.FrameLayout; 29 30 @SuppressWarnings({"UnusedDeclaration"}) 31 public class HardwareCanvasTextureViewActivity extends Activity 32 implements TextureView.SurfaceTextureListener { 33 private TextureView mTextureView; 34 private HardwareCanvasTextureViewActivity.RenderingThread mThread; 35 36 @Override onCreate(Bundle savedInstanceState)37 protected void onCreate(Bundle savedInstanceState) { 38 super.onCreate(savedInstanceState); 39 40 FrameLayout content = new FrameLayout(this); 41 42 mTextureView = new TextureView(this); 43 mTextureView.setSurfaceTextureListener(this); 44 mTextureView.setOpaque(false); 45 46 content.addView(mTextureView, new FrameLayout.LayoutParams(500, 500, Gravity.CENTER)); 47 setContentView(content); 48 } 49 50 @Override onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height)51 public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) { 52 mThread = new RenderingThread(mTextureView); 53 mThread.start(); 54 } 55 56 @Override onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height)57 public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) { 58 // Ignored 59 } 60 61 @Override onSurfaceTextureDestroyed(SurfaceTexture surface)62 public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) { 63 if (mThread != null) mThread.stopRendering(); 64 return true; 65 } 66 67 @Override onSurfaceTextureUpdated(SurfaceTexture surface)68 public void onSurfaceTextureUpdated(SurfaceTexture surface) { 69 // Ignored 70 } 71 72 private static class RenderingThread extends Thread { 73 private final TextureView mView; 74 private final Surface mSurface; 75 private volatile boolean mRunning = true; 76 RenderingThread(TextureView view)77 public RenderingThread(TextureView view) { 78 mView = view; 79 mSurface = new Surface(mView.getSurfaceTexture()); 80 } 81 82 @Override run()83 public void run() { 84 float x = 0.0f; 85 float y = 0.0f; 86 float speedX = 5.0f; 87 float speedY = 3.0f; 88 89 Paint paint = new Paint(); 90 paint.setColor(0xff00ff00); 91 92 while (mRunning && !Thread.interrupted()) { 93 final Canvas canvas = mSurface.lockHardwareCanvas(); 94 try { 95 canvas.drawColor(0x00000000, PorterDuff.Mode.CLEAR); 96 canvas.drawRect(x, y, x + 20.0f, y + 20.0f, paint); 97 } finally { 98 mSurface.unlockCanvasAndPost(canvas); 99 } 100 101 if (x + 20.0f + speedX >= mView.getWidth() || x + speedX <= 0.0f) { 102 speedX = -speedX; 103 } 104 if (y + 20.0f + speedY >= mView.getHeight() || y + speedY <= 0.0f) { 105 speedY = -speedY; 106 } 107 108 x += speedX; 109 y += speedY; 110 111 try { 112 Thread.sleep(15); 113 } catch (InterruptedException e) { 114 // Interrupted 115 } 116 } 117 } 118 stopRendering()119 void stopRendering() { 120 interrupt(); 121 mRunning = false; 122 } 123 } 124 } 125