NestedScrollView与recyclerview嵌套问题

最新推荐文章于 2025-05-26 16:21:52 发布

oneblue123

最新推荐文章于 2025-05-26 16:21:52 发布

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本文介绍了解决NestedScrollView嵌套垂直与水平RecyclerView时出现的滚动不流畅及冲突问题的方法。通过自定义MyNestedScrollView类，并重写onInterceptTouchEvent方法来实现滑动冲突的处理。

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1.滚动不流畅

nNestedScrollView嵌套垂直recyclerview 滚动不流畅

<android.support.v7.widget.RecyclerView
    android:id="@+id/recyclerView"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:nestedScrollingEnabled="false"/>

2.nNestedScrollView嵌套水平recyclerview 滚动冲突

/**
 * 解决嵌套水平recyclerview滑动冲突
 * @author DEV-81 
 * @version 1.0
 */

public class MyNestedScrollView extends NestedScrollView {
    private int slop;
    private float mInitialMotionX;
    private float mInitialMotionY;

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

    private void init(Context context) {
        ViewConfiguration config = ViewConfiguration.get(context);
        slop = config.getScaledEdgeSlop();
    }

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

    public MyNestedScrollView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        init(context);
    }


    private float xDistance, yDistance, lastX, lastY;

    @Override
    public boolean onInterceptTouchEvent(MotionEvent ev) {
        final float x = ev.getX();
        final float y = ev.getY();
        switch (ev.getAction()) {
            case MotionEvent.ACTION_DOWN:
                xDistance = yDistance = 0f;
                lastX = ev.getX();
                lastY = ev.getY();

                // This is very important line that fixes
                computeScroll();


                break;
            case MotionEvent.ACTION_MOVE:
                final float curX = ev.getX();
                final float curY = ev.getY();
                xDistance += Math.abs(curX - lastX);
                yDistance += Math.abs(curY - lastY);
                lastX = curX;
                lastY = curY;

                if (xDistance > yDistance) {
                    return false;
                }
        }


        return super.onInterceptTouchEvent(ev);
    }
}