雪碧繪製每隔幾秒鐘

Question

我要在規定的時間間隔

for (Sprite sprite : sprites) { 
     sprite.onDraw(canvas);    

      } 

我tryed幾個方法一次又一次地執行以下代碼此代碼，但我堅持錯誤。因爲我有我所有的動畫定時睡眠和絲線擴展分類

package com.okok; 
import java.util.ArrayList; 
import java.util.List; 
import android.content.Context; 
import android.graphics.Bitmap; 
import android.graphics.BitmapFactory; 
import android.graphics.Canvas; 
import android.graphics.Color; 
import android.view.MotionEvent; 
import android.view.SurfaceHolder; 
import android.view.SurfaceView; 
import android.view.SurfaceHolder.Callback; 
public class GameView extends SurfaceView { 
    private Bitmap bmp; 
    private SurfaceHolder holder; 
    private GameLoopThread gameLoopThread; 
    private List<Sprite> sprites = new ArrayList<Sprite>(); 
    private long lastClick; 
private Bitmap bmpBlood; 
private List<TempSprite> temps = new ArrayList<TempSprite>(); 
private int mint; 
    public GameView(Context context) { 
     super(context); 
     gameLoopThread = new GameLoopThread(this); 
     holder = getHolder(); 
     holder.addCallback(new Callback() { 
       @Override 
       public void surfaceDestroyed(SurfaceHolder holder) { 
       } 
       @Override 
       public void surfaceCreated(SurfaceHolder holder) { 
         createSprites(); 
         gameLoopThread.setRunning(true); 
         gameLoopThread.start(); 
       } 
       @Override 
       public void surfaceChanged(SurfaceHolder holder, int format, 
           int width, int height) { 
       } 
     }); 
     bmpBlood = BitmapFactory.decodeResource(getResources(), R.drawable.blast); 
    } 
    private void createSprites() { 
     sprites.add(createSprite(R.drawable.greenenact)); 
     sprites.add(createSprite(R.drawable.greenenact)); 
     sprites.add(createSprite(R.drawable.greenenact)); 

    } 
    private Sprite createSprite(int resouce) { 
     Bitmap bmp = BitmapFactory.decodeResource(getResources(), resouce); 
     return new Sprite(this, bmp); 
    } 
    @Override 
    protected void onDraw(Canvas canvas) { 
     canvas.drawColor(Color.rgb(21, 181, 195)); 
     for (int i = temps.size() - 1; i >= 0; i--) { 
      temps.get(i).onDraw(canvas); 
     } 
     for (Sprite sprite : sprites) { 
      sprite.onDraw(canvas);    

       } 

    } 

@Override 
    public boolean onTouchEvent(MotionEvent event) { 
     if (System.currentTimeMillis() - lastClick > 500) { 
       lastClick = System.currentTimeMillis(); 
      synchronized (getHolder()) { 
      float x = event.getX(); 
       float y =event.getY(); 

        for (int i = sprites.size() - 1; i >= 0; i--) { 
         Sprite sprite = sprites.get(i); 
         if (sprite.isCollition(x, y)) { 
           sprites.remove(sprite); 
          temps.add(new TempSprite(temps, this, x, y, bmpBlood)); 
           break; 
         } 
        } 
       } 
     } 
     return true; 
    } 
    } 

這是我用來搬東西

的GameLoopThread類

package com.okok; 

    import android.graphics.Canvas; 
    public class GameLoopThread extends Thread { 
    static final long FPS = 10; 
    private GameView view; 
    private boolean running = false; 

    public GameLoopThread(GameView view) { 
     this.view = view; 
    } 

    public void setRunning(boolean run) { 
     running = run; 
    } 

    @Override 
    public void run() { 
     long ticksPS = 1000/FPS; 
     long startTime; 
     long sleepTime; 
     while (running) { 
       Canvas c = null; 
       startTime = System.currentTimeMillis(); 
       try { 
         c = view.getHolder().lockCanvas(); 
         synchronized (view.getHolder()) { 
           view.onDraw(c); 
         } 
       } finally { 
         if (c != null) { 
           view.getHolder().unlockCanvasAndPost(c); 
         } 
       } 
       sleepTime = ticksPS - (System.currentTimeMillis() - startTime); 
       try { 
         if (sleepTime > 0) 
           sleep(sleepTime); 
         else 
           sleep(10); 
       } catch (Exception e) {} 
     } 
    } 
    } 

Answer 1

試着這麼做：

private void createSprites() { 
     { 
     new Thread(new Runnable() { 
      public void run() { 
       for (int z =0; z<20; z++) // total of 20 sprites 
       try 
        { 
        Thread.sleep(5000); // new enemy every 5 seconds 
        sprites.add(createSprite(R.drawable.image)); 
        z++; 

        } 
       catch(InterruptedException e) 
        { 
        e.printStackTrace(); 
        } 
      } 
     }).start(); 
     }