最近在做一个项目需要用到ViewPager加载广告图,布局中需要侧滑,用了android V4包里的SlidingPaneLayout控件(该控件在旧的v4包里面没有,需要更新v4包),项目中使用的时候,发现在滑动中ViewPager和SlidingPaneLayout滑动冲突了,当手指从左向右滑动时,ViewPager的滑动事件被SlidingPaneLayout屏蔽了,只能执行SlidingPaneLayout的事件,而从右往左滑时,则正常。

  国内找了一些资料,发现不是特别好,最后还是靠VPNFQ去国外论坛找(果然是世界最大的局域网),这个问题在国外论坛上一下子就找到了(不得不说国外的资源就是丰富,给外国友人点个赞)所以下面的处理代码,是转载国外的,可以直接复制使用,暂时没发现问题,有问题以后再修改。

  这里说一下处理步骤,自己新建一个类,继承于SlidingPaneLayout,然后把这个类添加到你所要布局的XML文件里,这样就可以了。下面贴代码。

package com.zuzuChe.view;

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;

/**
 * Created by apaojun on 2015/2/12.
 */
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();
                // The user should always be able to "close" the pane, so we only check
                // for child scrollability if the pane is currently closed.
                if (mInitialMotionX > mEdgeSlop && !isOpen() && canScroll(this, false,
                        Math.round(x - mInitialMotionX), Math.round(x), Math.round(y))) {

                    // How do we set super.mIsUnableToDrag = true?

                    // send the parent a cancel event
                    MotionEvent cancelEvent = MotionEvent.obtain(ev);
                    cancelEvent.setAction(MotionEvent.ACTION_CANCEL);
                    return super.onInterceptTouchEvent(cancelEvent);
                }
            }
        }

        return super.onInterceptTouchEvent(ev);
    }
}

 

posted on 2015-02-12 16:52  阿炮君  阅读(2445)  评论(0编辑  收藏  举报