如何停止圖像動畫？

Question

以下程序顯示使用loadAnimation（）方法自動進行動畫處理的全屏圖像。這是代碼。

public class MainActivity extends ActionBarActivity { 

/** Called when the activity is first created. */ 
public int currentimageindex=0; 
Timer timer; 
TimerTask task; 
ImageView slidingimage; 

private int[] IMAGE_IDS = { 
     R.drawable.picture1, R.drawable.picture2, R.drawable.picture3, 
     R.drawable.picture4 
}; 
@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.activity_main); 
    final Handler mHandler = new Handler(); 


    // Create runnable for posting 
    final Runnable mUpdateResults = new Runnable() { 
     public void run() { 

      AnimateandSlideShow(); 

     } 
    }; 

    int delay = 1000; // delay for 1 sec. 

    int period = 3000; // repeat every 4 sec. 

    Timer timer = new Timer(); 

    timer.scheduleAtFixedRate(new TimerTask() { 

     public void run() { 

      mHandler.post(mUpdateResults); 

     } 

    }, delay, period); 



} 



/** 
* Helper method to start the animation on the splash screen 
*/ 
private void AnimateandSlideShow() { 


    slidingimage = (ImageView)findViewById(R.id.ImageView3_Left); 
    slidingimage.setImageResource(IMAGE_IDS[currentimageindex%IMAGE_IDS.length]); 

    currentimageindex++; 

    Animation leftToRight = AnimationUtils.loadAnimation(this, R.anim.left_to_right); 


    slidingimage.startAnimation(leftToRight); 




} 


} 

正如您所看到的全尺寸圖片每4秒更換一次。現在我想要做的就是在最後一張圖片出現後停止動畫（本例中爲圖片4）。解決這個問題後，我會嘗試從使用JSON的服務器獲取圖像。

謝謝 Theo。

Answer 1

1）您有直到只有你有圖像IMAGE_IDS陣列

2）然後停止你的定時器AnimateandSlideShow（）下面currentimageindex ++

也

添加以下行來加載動畫

if(currentimageindex <= IMAGE_IDS.length) 
     { 
      Animation leftToRight = AnimationUtils.loadAnimation(this, R.anim.letf_anim); 
      slidingimage.startAnimation(leftToRight); 
     } 
     else 
     { 
      timer.cancel(); 
     } 

還替換以下行

Timer timer = new Timer(); 

要

timer = new Timer();