public class ViewPageFixedSpeedScroller extends Scroller {   private int mDuration = 300;   public ViewPageFixedSpeedScroller(Context context) {     super(context);     // TODO Auto-generated constructor stub   }   public ViewPageFixedSpeedScroller(Context context, Interpolator interpolator) {     super(context, interpolator);   }   @Override   public void startScroll(int startX, int startY, int dx, int dy, int duration) {     // Ignore received duration, use fixed one instead     super.startScroll(startX, startY, dx, dy, mDuration);   }   @Override   public void startScroll(int startX, int startY, int dx, int dy) {     // Ignore received duration, use fixed one instead     super.startScroll(startX, startY, dx, dy, mDuration);   }   public void setmDuration(int time) {     mDuration = time;   }   public int getmDuration() {     return mDuration;   } } 

2、通過反射修改viewpage 的scoller<pre name="code" class="java">try { //通過反射找到當前class 文件里的mScroller的mScrooller對象 //getDeclaredField是可以獲取一個類的所有字段.  //getField只能獲取類的public 字段.    Field mField = ViewPager.class.getDeclaredField("mScroller");  mField.setAccessible(true);//設置了private屬性的對象也能獲取的   Scroller mScroller = new ViewPageFixedSpeedScroller(page.getContext(), new LinearInterpolator());   mField.set(page, mScroller); } catch (Exception e) {   e.printStackTrace(); } </pre><br> <pre></pre> <pre name="code" class="java"></pre><br>