解决ViewPager和SlidingPaneLayout的滑动事件冲突问题

问题描述：

ViewPager和SlidingPaneLayout的滑动事件冲突。

问题分析：

在手指左右滑动时，SlidingPaneLayout会屏蔽ViewPager的滑动事件。

解决办法：

自定义SlidingPaneLayout类

import android.content.Context;
import android.support.v4.view.MotionEventCompat;
import android.support.v4.widget.SlidingPaneLayout;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.ViewConfiguration;
public class PagerEnabledSlidingPaneLayout extends SlidingPaneLayout {
 private float mInitialMotionX;
 private float mInitialMotionY;
 private float mEdgeSlop;
 public PagerEnabledSlidingPaneLayout(Context context) {
  this(context, null);
 }
public PagerEnabledSlidingPaneLayout(Context context, 
AttributeSet attrs) {
  this(context, attrs, 0);
 }
public PagerEnabledSlidingPaneLayout(Context context, 
AttributeSet attrs, int defStyle) {
  super(context, attrs, defStyle);
  ViewConfiguration config = ViewConfiguration.get(context);
  mEdgeSlop = config.getScaledEdgeSlop();
 }
 @Override
 public boolean onInterceptTouchEvent(MotionEvent ev) {
  switch (MotionEventCompat.getActionMasked(ev)) {
   case MotionEvent.ACTION_DOWN: {
    mInitialMotionX = ev.getX();
    mInitialMotionY = ev.getY();
    break;
   }
   case MotionEvent.ACTION_MOVE: {
    final float x = ev.getX();
    final float y = ev.getY();
    if (mInitialMotionX > mEdgeSlop && !isOpen() && canScroll(this, false,
      Math.round(x - mInitialMotionX), Math.round(x), Math.round(y))) { 
     MotionEvent cancelEvent = MotionEvent.obtain(ev);
     cancelEvent.setAction(MotionEvent.ACTION_CANCEL);
     return super.onInterceptTouchEvent(cancelEvent);
    }
   }
  }
  return super.onInterceptTouchEvent(ev);
 }
}

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