ImageSwitcher 右向左滑動的實現方式

 

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

上面實現了從左向右滑動的效果，可是反過來，從右向左滑動怎么實現呢？

 

默認情況下 android.R.anim.slide_in_right 和 android.R.anim.slide_out_left是私有的,也就是說通過.屬性是找不到的.

解決辦法:slide_in_right和slide_out_left這兩個xml都可以在sdk里找到的，修改后作為自己的資源調用就好了

platforms\android-10\data\res\anim\下找到下面兩個xml文件.

slide_in_right

slide_out_left

最后放到項目 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();  
          // 
           取得按下時的坐標 
          
 
          
                    Log.i( 
          " 
          event.getX() 
          ",  
          " 
           downX  
          " + downX); 
          
                     
          return  
          true; 
          
                }  
          else  
          if ( 
          event.getAction() == MotionEvent.ACTION_UP) { 
          
 
          
                    upX = ( 
          int)  
          event.getX();  
          // 
           取得松開時的坐標 
          
 
          
                    Log.i( 
          " 
          event.getX() 
          ",  
          " 
           upX  
          " + downX); 
          
 
          
                     
          // 
           從左拖到右，即看前一張 
          
                     
          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) {  
          // 
           從右拖到左，即看后一張 
          
 
          
                        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; 
          
            } 
          
        });