| /* |
| * Copyright (C) 2011 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.test.hwui; |
| |
| import android.app.Activity; |
| import android.graphics.Canvas; |
| import android.graphics.Paint; |
| import android.graphics.PorterDuff; |
| import android.graphics.SurfaceTexture; |
| import android.os.Bundle; |
| import android.view.Gravity; |
| import android.view.TextureView; |
| import android.widget.FrameLayout; |
| |
| @SuppressWarnings({"UnusedDeclaration"}) |
| public class CanvasTextureViewActivity extends Activity |
| implements TextureView.SurfaceTextureListener { |
| private TextureView mTextureView; |
| private CanvasTextureViewActivity.RenderingThread mThread; |
| |
| @Override |
| protected void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| |
| FrameLayout content = new FrameLayout(this); |
| |
| mTextureView = new TextureView(this); |
| mTextureView.setSurfaceTextureListener(this); |
| mTextureView.setOpaque(false); |
| |
| content.addView(mTextureView, new FrameLayout.LayoutParams(500, 500, Gravity.CENTER)); |
| setContentView(content); |
| } |
| |
| @Override |
| public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) { |
| mThread = new RenderingThread(mTextureView); |
| mThread.start(); |
| } |
| |
| @Override |
| public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) { |
| // Ignored |
| } |
| |
| @Override |
| public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) { |
| if (mThread != null) mThread.stopRendering(); |
| return true; |
| } |
| |
| @Override |
| public void onSurfaceTextureUpdated(SurfaceTexture surface) { |
| // Ignored |
| } |
| |
| private static class RenderingThread extends Thread { |
| private final TextureView mSurface; |
| private volatile boolean mRunning = true; |
| |
| public RenderingThread(TextureView surface) { |
| mSurface = surface; |
| } |
| |
| @Override |
| public void run() { |
| float x = 0.0f; |
| float y = 0.0f; |
| float speedX = 5.0f; |
| float speedY = 3.0f; |
| |
| Paint paint = new Paint(); |
| paint.setColor(0xff00ff00); |
| |
| while (mRunning && !Thread.interrupted()) { |
| final Canvas canvas = mSurface.lockCanvas(null); |
| try { |
| canvas.drawColor(0x00000000, PorterDuff.Mode.CLEAR); |
| canvas.drawRect(x, y, x + 20.0f, y + 20.0f, paint); |
| } finally { |
| mSurface.unlockCanvasAndPost(canvas); |
| } |
| |
| if (x + 20.0f + speedX >= mSurface.getWidth() || x + speedX <= 0.0f) { |
| speedX = -speedX; |
| } |
| if (y + 20.0f + speedY >= mSurface.getHeight() || y + speedY <= 0.0f) { |
| speedY = -speedY; |
| } |
| |
| x += speedX; |
| y += speedY; |
| |
| try { |
| Thread.sleep(15); |
| } catch (InterruptedException e) { |
| // Interrupted |
| } |
| } |
| } |
| |
| void stopRendering() { |
| interrupt(); |
| mRunning = false; |
| } |
| } |
| } |