Android ScrollView内嵌ViewPager导致ViewPager滑动困难

原文链接：http://titanseason.iteye.com/blog/1858874

解决方式：重写ScrollView，然后在xml中定义布局的时候，使用自定义的PagerScrollView而不是系统的ScrollView即可。

重点在于重写父类的onInterceptTouchEvent方法

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 PagerScrollView extends ScrollView {

private GestureDetector mGestureDetector;

public PagerScrollView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init();
}

public PagerScrollView(Context context) {
super(context);
init();
}

public PagerScrollView(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}

private void init() {
mGestureDetector = new GestureDetector(getContext(),
new YScrollDetector());
setFadingEdgeLength(0);
}

@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
return super.onInterceptTouchEvent(ev)
&& mGestureDetector.onTouchEvent(ev);
}

private class YScrollDetector extends SimpleOnGestureListener {
@Override
public boolean onScroll(MotionEvent e1, MotionEvent e2,
float distanceX, float distanceY) {

if (Math.abs(distanceY) >= Math.abs(distanceX)) {
return true;
}
return false;
}
}
}