ScrollView中ViewPager无法正常滑动问题

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本文主要介绍如何解决ViewPager在ScrollView中滑动经常失效、无法正常滑动问题。

解决方法只需要在接近水平滚动时ScrollView不处理事件而交由其子View(即这里的ViewPager)处理即可，重写ScrollView的onInterceptTouchEvent函数，如下：

package com.mingren.common;import android.content.Context;import android.util.AttributeSet;import android.view.GestureDetector;import android.view.GestureDetector.SimpleOnGestureListener;import android.view.MotionEvent;import android.widget.ScrollView;public class VerticalScrollView extends ScrollView {private GestureDetector mGestureDetector;public VerticalScrollView(Context context, AttributeSet attrs) {super(context, attrs);mGestureDetector = new GestureDetector(context, new YScrollDetector());}@Overridepublic boolean onInterceptTouchEvent(MotionEvent ev) {return super.onInterceptTouchEvent(ev) && mGestureDetector.onTouchEvent(ev);}class YScrollDetector extends SimpleOnGestureListener {@Overridepublic boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {/** * if we're scrolling more closer to x direction, return false, let * subview to process it */return (Math.abs(distanceY) > Math.abs(distanceX));}}}

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