Surface View Test Activity : Activity « UI « Android

1. Android
2. UI
3. Activity

Surface View Test Activity

     
package app.test;

import android.app.Activity;
import android.content.Context;
import android.graphics.Canvas;
import android.os.Bundle;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.Window;
import android.view.WindowManager;

public class Test extends Activity {
  FastRenderView renderView;
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
        WindowManager.LayoutParams.FLAG_FULLSCREEN);
    renderView = new FastRenderView(this);
    setContentView(renderView);
  }
  protected void onResume() {
    super.onResume();
    renderView.resume();
  }
  protected void onPause() {
    super.onPause();
    renderView.pause();
  }
}

class FastRenderView extends SurfaceView implements Runnable {
  Thread renderThread = null;
  SurfaceHolder holder;
  volatile boolean running = false;

  public FastRenderView(Context context) {
    super(context);
    holder = getHolder();
  }

  public void resume() {
    running = true;
    renderThread = new Thread(this);
    renderThread.start();
  }
  public void run() {
    while (running) {
      if (!holder.getSurface().isValid())
        continue;
      Canvas canvas = holder.lockCanvas();
      canvas.drawRGB(255, 0, 0);
      holder.unlockCanvasAndPost(canvas);
    }
  }
  public void pause() {
    running = false;
    while (true) {
      try {
        renderThread.join();
      } catch (InterruptedException e) {
        // retry
      }
    }
  }
}

   
    
    
    
    
  

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