@Override 
 public boolean onInterceptTouchEvent(MotionEvent ev) { 
 boolean intercepted = false; 
 int x = (int) ev.getX(); 
 int y = (int) ev.getY(); 
 switch (ev.getAction()) { 
 case MotionEvent.ACTION_DOWN: 
 //down事件不拦截，否则无法传给子元素 
 intercepted = false; 
 if (!mScroller.isFinished()) { 
  mScroller.abortAnimation(); 
  intercepted = true; 
 } 
 break; 
 case MotionEvent.ACTION_MOVE: 
 int deltaX = x - mLastXIntercept; 
 int deltaY = y - mLastYIntercept; 
 //水平滑动则拦截 
 if (Math.abs(deltaX) > Math.abs(deltaY) + 5) { 
  intercepted = true; 
 } else { 
  intercepted = false; 
 } 
 break; 
 case MotionEvent.ACTION_UP: 
 //不拦截，否则子元素无法收到 
 intercepted = false; 
 break; 
 } 
 //因为当ViewGroup中的子View可能消耗了down事件，在onTouchEvent无法获取， 
 // 无法对mLastX赋初值，所以在这里赋值一次 
 mLastX = x; 
 mLastY = y; 
 mLastYIntercept = y; 
 mLastXIntercept = x; 
 return intercepted; 
 } 

@Override 
 public boolean onTouchEvent(MotionEvent event) { 
 mVelocityTracker.addMovement(event); 
 int x = (int) event.getX(); 
 int y = (int) event.getY(); 
 switch (event.getAction()) { 
 case MotionEvent.ACTION_DOWN: 
 if (!mScroller.isFinished()) { 
  mScroller.abortAnimation(); 
 } 
 break; 
 case MotionEvent.ACTION_MOVE: 
 int deltaX = x - mLastX; 
 int deltaY = y - mLastY; 
 if (getScrollX() < 0) { 
  scrollTo(0, 0); 
 } 
 scrollBy(-deltaX, 0); 
 break; 
 case MotionEvent.ACTION_UP: 
 int scrollX = getScrollX(); 
 mVelocityTracker.computeCurrentVelocity(1000); 
 float xVelocityTracker = mVelocityTracker.getXVelocity(); 
 if (Math.abs(xVelocityTracker) > 50) {//速度大于50则滑动到下一个 
  mChildIndex = xVelocityTracker > 0 ? mChildIndex - 1 : mChildIndex + 1; 
 } else { 
  mChildIndex = (scrollX + mChildWith / 2) / mChildWith; 
 } 
 mChildIndex = Math.max(0, Math.min(mChildIndex, mChildrenSize - 1)); 
 int dx = mChildIndex * mChildWith - scrollX; 
 smoothScrollBy(dx, 0); 
 mVelocityTracker.clear(); 
 break; 
 } 
 mLastY = y; 
 mLastX = x; 
 return true; 
 } 

<com.example.lzy.customview.HorizontalScrollViewEx 
 android:layout_width="match_parent" 
 android:layout_height="200dp"> 
 
 <ListView 
 android:id="@+id/listView" 
 android:layout_width="match_parent" 
 android:layout_height="match_parent" /> 
 
 <Button 
 android:layout_width="match_parent" 
 android:layout_height="match_parent" 
 android:background="@android:color/holo_blue_bright" 
 android:text="2" /> 
 
 <Button 
 android:layout_width="match_parent" 
 android:layout_height="match_parent" 
 android:background="@android:color/holo_green_dark" 
 android:text="3" /> 
 </com.example.lzy.customview.HorizontalScrollViewEx> 

public class ListViewEx extends ListView { 
 
 private static final String TAG = "lzy"; 
 private int mLastX; 
 private int mLastY; 
 
 public ListViewEx(Context context) { 
 super(context); 
 } 
 
 public ListViewEx(Context context, AttributeSet attrs) { 
 super(context, attrs); 
 } 
 
 public ListViewEx(Context context, AttributeSet attrs, int defStyleAttr) { 
 super(context, attrs, defStyleAttr); 
 } 
 
 
 @Override 
 public boolean dispatchTouchEvent(MotionEvent ev) { 
 int x = (int) ev.getX(); 
 int y = (int) ev.getY(); 
 
 switch (ev.getAction()) { 
 case MotionEvent.ACTION_DOWN: 
 //子View的所有父ViewGroup都会跳过onInterceptTouchEvent的回调 
 getParent().requestDisallowInterceptTouchEvent(true); 
 break; 
 case MotionEvent.ACTION_MOVE: 
 int deltaX = x - mLastX; 
 int deltaY = y - mLastY; 
 if (Math.abs(deltaX) > Math.abs(deltaY) + 5) {//水平滑动，使得父类可以执行onInterceptTouchEvent 
  getParent().requestDisallowInterceptTouchEvent(false); 
 } 
 break; 
 } 
 mLastX = x; 
 mLastY = y; 
 return super.dispatchTouchEvent(ev); 
 } 
} 

@Override 
 public boolean onInterceptTouchEvent(MotionEvent ev) { 
 int x = (int) ev.getX(); 
 int y = (int) ev.getY(); 
 if (ev.getAction() == MotionEvent.ACTION_DOWN) { 
 mLastX = x; 
 mLastY = y; 
 if (!mScroller.isFinished()) { 
 mScroller.abortAnimation(); 
 return true; 
 } 
 return false; 
 } else { 
 //如果是非down事件，说明子View并没有拦截父类的onInterceptTouchEvent 
 //说明该事件交由父类处理，所以不需要再传递给子类，返回true 
 return true; 
 } 
 }