Android ViewPager自动播放

在开发Android应用的过程中，ViewPager有时候需要自动播放的功能，今天就介绍一下自动播放功能的实现，直接上代码：

 1 // viewpager auto play
 2     private static final long ANIM_VIEWPAGER_DELAY = 3000;
 3 
 4     private Handler h = new Handler();
 5     private Runnable animateViewPager = new Runnable() {
 6         public void run() {
 7             if (mViewList.size() > 0) {
 8                 mViewPager.setCurrentItem((mViewPager.getCurrentItem() + 1)
 9                         % mViewList.size(), true);
10                 h.postDelayed(animateViewPager, ANIM_VIEWPAGER_DELAY);
11             }
12         }
13     };
14 
15     @Override
16     public void onPause() {
17         super.onPause();
18         if (h != null) {
19             h.removeCallbacks(animateViewPager);
20         }
21     }
22 
23     @Override
24     public boolean dispatchTouchEvent(MotionEvent ev) {
25         if (ev.getAction() == MotionEvent.ACTION_DOWN) {
26             if (h != null) {
27                 h.removeCallbacks(animateViewPager);
28             }
29         }
30         if (ev.getAction() == MotionEvent.ACTION_UP) {
31             h.postDelayed(animateViewPager, ANIM_VIEWPAGER_DELAY);
32         }
33         return super.dispatchTouchEvent(ev);
34     }
35 
36     @Override
37     protected void onResume() {
38         super.onResume();
39         h.postDelayed(animateViewPager, ANIM_VIEWPAGER_DELAY);
40    }