ImageSwitcher 右向左滑动的实现方式

 

ImageSwitcher is;
...
is.setInAnimation(this, android.R.anim.slide_in_left);
is.setOutAnimation(this, android.R.anim.slide_out_right);

上面实现了从左向右滑动的效果，可是反过来，从右向左滑动怎么实现呢？

 

默认情况下 android.R.anim.slide_in_right 和 android.R.anim.slide_out_left是私有的,也就是说通过.属性是找不到的.

解决办法:slide_in_right和slide_out_left这两个xml都可以在sdk里找到的，修改后作为自己的资源调用就好了

platforms\android-10\data\res\anim\下找到下面两个xml文件.

slide_in_right

slide_out_left

最后放到项目 res->anim下面

 

 

   imgSwitcher.setOnTouchListener( 
  new OnTouchListener() { 
  
 
  
            @Override 
  
             
  public boolean onTouch(View v, MotionEvent  
  event) { 
  
                 
  // 
   TODO Auto-generated method stub 
  
 
  
                 
  if ( 
  event.getAction() == MotionEvent.ACTION_DOWN) { 
  
 
  
                    downX = ( 
  int)  
  event.getX();  
  // 
   取得按下时的坐标 
  
 
  
                    Log.i( 
  " 
  event.getX() 
  ",  
  " 
   downX  
  " + downX); 
  
                     
  return  
  true; 
  
                }  
  else  
  if ( 
  event.getAction() == MotionEvent.ACTION_UP) { 
  
 
  
                    upX = ( 
  int)  
  event.getX();  
  // 
   取得松开时的坐标 
  
 
  
                    Log.i( 
  " 
  event.getX() 
  ",  
  " 
   upX  
  " + downX); 
  
 
  
                     
  // 
   从左拖到右，即看前一张 
  
                     
  if (upX - downX >  
  100) { 
  
 
  
                        imgSwitcher.setInAnimation(AnimationUtils 
  
                                .loadAnimation(firstActivity. 
  this, 
  
                                        android.R.anim.slide_in_left)); 
  
                        imgSwitcher.setOutAnimation(AnimationUtils 
  
                                .loadAnimation(firstActivity. 
  this, 
  
                                        android.R.anim.slide_out_right)); 
  
                        curIndex--; 
  
 
  
                         
  if (curIndex <  
  0) { 
  
                            curIndex =  
  5; 
  
                        } 
  
 
  
                        imgSwitcher.setImageResource(IMAGE_LIST[curIndex]); 
  
                        firstActivity. 
  this.switchTitle(curIndex); 
  
 
  
                    }  
  else  
  if (downX - upX >  
  100) {  
  // 
   从右拖到左，即看后一张 
  
 
  
                        imgSwitcher.setInAnimation(AnimationUtils 
  
                                .loadAnimation(firstActivity. 
  this, 
  
                                        R.anim.slide_out_left)); 
  
                        imgSwitcher.setOutAnimation(AnimationUtils 
  
                                .loadAnimation(firstActivity. 
  this, 
  
                                        R.anim.slide_in_right)); 
  
                        curIndex++; 
  
                         
  if (curIndex >  
  5) { 
  
                            curIndex =  
  0; 
  
                        } 
  
                        imgSwitcher.setImageResource(IMAGE_LIST[curIndex]); 
  
                        firstActivity. 
  this.switchTitle(curIndex); 
  
                    } 
  
                     
  return  
  true; 
  
                } 
  
                 
  return  
  false; 
  
            } 
  
        });