/******************************************************************************* * Copyright 2011, 2012 Chris Banes. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. *******************************************************************************/package com.baiyi.tuan.views.pulldownview;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;/** * 完美解决ScrollView嵌套ViewPager滑动失效和无法正常滑动冲突问题 *  * @author leict *  */public class VerticalScrollView extends ScrollView {	private GestureDetector mGestureDetector;	public VerticalScrollView(Context context, AttributeSet attrs) {		super(context, attrs);		mGestureDetector = new GestureDetector(context, new YScrollDetector());	}	@Override	public boolean onInterceptTouchEvent(MotionEvent ev) {		return super.onInterceptTouchEvent(ev)				&& mGestureDetector.onTouchEvent(ev);	}	class YScrollDetector extends SimpleOnGestureListener {		@Override		public boolean onScroll(MotionEvent e1, MotionEvent e2,				float distanceX, float distanceY) {			// 如果我们滚动更接近水平方向,返回false,让子视图来处理它			return (Math.abs(distanceY) > Math.abs(distanceX));		}	}}