用一個imageview翻譯動畫

Question

我想獲得一個imageview的多個動畫。就像我想讓一張圖像從屏幕的頂部掉下來，在該圖像完成動畫之前，下一個動畫應該已經從屏幕的頂部開始。我能夠使圖像從頂部掉落，但不能做到上面的特徵。當圖像到達結尾時，只有下一個動畫開始。請幫助

Answer 1

如果您知道第一個動畫的時間，在其onAnimationStart中，您可以使用如下所示在當前動畫開始之前開始下一個動畫完成：

new Handler().postDelayed(new Runnable() { 
      @Override 
      public void run() { 
       //add here your animation to start 
      } 
     }, 3000);//change the timer in milliseconds 

在這種情況下，您的動畫將在3秒後開始。更改此值以符合您的需求。

Answer 2

public class FliperViewExampleActivity extends Activity implements OnGestureListener { 
/** Called when the activity is first created. */ 
private int imageID[] = {R.drawable.pic2,R.drawable.pic3,R.drawable.pic4,R.drawable.ic_launcher}; 
private ViewFlipper viewFlipper = null; 
private GestureDetector gestureDetector = null; 
private Button btn_next,btn_pre; 
private int n; 
int i=1; 
private Timer timer; 


@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 
    btn_next = (Button)findViewById(R.id.btn_next); 
    btn_pre = (Button)findViewById(R.id.btn_pre); 
    timer = new Timer();; 
    btn_next.setOnClickListener(new View.OnClickListener() { 

     @Override 
     public void onClick(View v) { 
      // TODO Auto-generated method stub 
      if(i==4) 
      { 


      } 
      else 
      { 
      nextImage(); 
      } 
     } 
    }); 

    btn_pre.setOnClickListener(new View.OnClickListener() { 

     @Override 
     public void onClick(View v) { 
      if(i==1) 
      { 


      } 
      else 
      { 
      previousImage(); 
      } 
     } 
    }); 

    viewFlipper = (ViewFlipper) findViewById(R.id.viewflipper); 
    // gestureDetector Object is used to detect gesture events 
    gestureDetector = new GestureDetector(this); 
    n=imageID.length; 

    for (int i = 0; i < imageID.length; i++) 
    { 
     ImageView image = new ImageView(this); 
     image.setImageResource(imageID[i]); 
     image.setScaleType(ImageView.ScaleType.FIT_XY); 
     viewFlipper.addView(image, new LayoutParams( 
       LayoutParams.FILL_PARENT, LayoutParams.FILL_PARENT)); 
    } 

    //pageSwitcher(3); 
    } 




public void pageSwitcher(int seconds) { 
    // At this line a new Thread will be created 
    timer.schedule(new RemindTask(), 4000, seconds * 1000);  // delay 
                    // in 
    // milliseconds 
} 

// this is an inner class... 
class RemindTask extends TimerTask { 

    @Override 
    public void run() { 

     // As the TimerTask run on a seprate thread from UI thread we have 
     // to call runOnUiThread to do work on UI thread. 
     runOnUiThread(new Runnable() { 
      public void run() { 
        if(i==n) 
        { 
        timer.cancel(); 


        } 
        else 
        { 
         nextImage(); 
        } 



      } 
     }); 

    } 
} 
private void nextImage(){ 
    System.out.println("VALUE OF I IS"+i); 
    System.out.println("VALUE OF N IS"+n); 

     if(i==1) 
     { 
       /* 1.RotateAnimation rotateAnimation = new RotateAnimation(0, 360,  Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f); 
      rotateAnimation.setDuration(1000); 
      rotateAnimation.setRepeatCount(0); */ 
      //start animation 

       /*2. AlphaAnimation blinkanimation= new AlphaAnimation(1, 0); // Change alpha from fully visible to invisible 
      blinkanimation.setDuration(300); // duration - half a second 
      blinkanimation.setInterpolator(new LinearInterpolator()); // do not alter animation rate 
      blinkanimation.setRepeatCount(1); // Repeat animation infinitely 
      blinkanimation.setRepeatMode(Animation.ZORDER_NORMAL);*/ 

      Toast.makeText(FliperViewExampleActivity.this,"Test Image",Toast.LENGTH_SHORT).show(); 
      ObjectAnimator anim = (ObjectAnimator) AnimatorInflater.loadAnimator(FliperViewExampleActivity.this, R.anim.flipper); 
      anim.setTarget(this.viewFlipper); 
      anim.setDuration(1000); 
      anim.start(); 

      /*3. TranslateAnimation _tAnim = new TranslateAnimation(0,0, -500, 0); 
       _tAnim.setInterpolator(new AnticipateOvershootInterpolator(5)); 
       _tAnim.setDuration(1000);*/ 

            /*4. Animation shake = AnimationUtils.loadAnimation(FliperViewExampleActivity.this,R.anim.wobble); 
      shake.reset(); 
      shake.setFillAfter(true); 
      */ 

       /*5. int fadeInDuration = 1000; // Configure time values here 
       Animation fadeIn = new AlphaAnimation(0, 1); 
       fadeIn.setInterpolator(new AccelerateInterpolator()); // add this 
       fadeIn.setDuration(fadeInDuration); 
    */ 


      // this.viewFlipper.setInAnimation(_tAnim); 


      /*this.viewFlipper.setInAnimation(AnimationUtils.loadAnimation(this, 
         R.anim.zoomin)); */ 
      // this.viewFlipper.setOutAnimation(AnimationUtils.loadAnimation(this, 
         // R.anim.zoomout)); 
      this.viewFlipper.showNext(); 
     } 
     else 
     { 
    this.viewFlipper.setInAnimation(AnimationUtils.loadAnimation(this, 
      R.anim.push_left_in)); 
    this.viewFlipper.setOutAnimation(AnimationUtils.loadAnimation(this, 
      R.anim.push_right_out)); 
    this.viewFlipper.showNext(); 
     } 

    i++; 
    // pageSwitcher(3); 
    } 


private void previousImage(){ 
    System.out.println("VALUE OF I IS"+i); 
    System.out.println("VALUE OF N IS"+n); 
    if(i==2) 
    { 

     this.viewFlipper.setInAnimation(AnimationUtils.loadAnimation(this, 
        R.anim.zoomin)); 
     this.viewFlipper.setOutAnimation(AnimationUtils.loadAnimation(this, 
        R.anim.push_left_out)); 
     this.viewFlipper.showPrevious(); 
    } 
    else 
    { 
    this.viewFlipper.setInAnimation(AnimationUtils.loadAnimation(this, 
      R.anim.push_right_in)); 
    this.viewFlipper.setOutAnimation(AnimationUtils.loadAnimation(this, 
      R.anim.push_left_out)); 
    this.viewFlipper.showPrevious(); 
    } 
    i--; 






} 

@Override 
public boolean onDown(MotionEvent arg0) { 
    // TODO Auto-generated method stub 
    return false; 
} 
@Override 
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, 
     float velocityY) { 
    // TODO Auto-generated method stub 
    if (e1.getX() - e2.getX() > 60) 
    { 
     nextImage(); 
     return true; 
    } 
    else if (e1.getX() - e2.getX() < -60) 
    { 
      previousImage(); 
      return true; 
    } 
    return true; 
} 
@Override 
public void onLongPress(MotionEvent e) { 
    // TODO Auto-generated method stub 

} 
@Override 
public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, 
     float distanceY) { 
    // TODO Auto-generated method stub 
    return false; 
} 
@Override 
public void onShowPress(MotionEvent e) { 
    // TODO Auto-generated method stub 

} 
@Override 
public boolean onSingleTapUp(MotionEvent e) { 
    // TODO Auto-generated method stub 
    return false; 
} 

@Override 
public boolean onTouchEvent(MotionEvent event) 
{ 
    return gestureDetector.onTouchEvent(event); 
} 
}