SnssdkInfViewPager.java

package com.qianfeng.gl4study.snssdk.view;


import android.content.Context;
import android.support.v4.view.ViewPager;
import android.util.AttributeSet;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.view.View;
import android.widget.ScrollView;

/**
 * Created with IntelliJ IDEA.
 * I'm glad to share my knowledge with you all.
 * User:Gaolei
 * Date:2015/3/11
 * Email:pdsfgl@live.com
 */
public class SnssdkInfViewPager extends ViewPager {
	private boolean canScroll;

	private GestureDetector mGestureDetector;
	View.OnTouchListener mGestureListener;

	public SnssdkInfViewPager(Context context, AttributeSet attrs) {
		super(context, attrs);
		mGestureDetector = new GestureDetector(new YScrollDetector());
		canScroll = true;
	}


	@Override
	public boolean onInterceptTouchEvent(MotionEvent ev) {
		if(ev.getAction() == MotionEvent.ACTION_UP)
			canScroll = true;
		return super.onInterceptTouchEvent(ev) && mGestureDetector.onTouchEvent(ev);
	}

	class YScrollDetector extends GestureDetector.SimpleOnGestureListener {
		@Override
		public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
			if(canScroll)
				if (Math.abs(distanceY) >= Math.abs(distanceX))
					canScroll = true;
				else
					canScroll = false;
			return canScroll;
		}
	}



}