各种View滑动冲突解决方法（demo为ScrollView与ScrollView冲突）

forzhers

于 2021-09-15 14:30:33 发布

阅读量507

点赞数

分类专栏：小知识点文章标签： android

本文链接：https://blog.youkuaiyun.com/forzhers/article/details/120307596

版权

小知识点专栏收录该内容

8 篇文章

订阅专栏

各种冲突DEMO

public class InnerScrollView extends ScrollView {

public InnerScrollView (Context context) {
    super(context);
}

public InnerScrollView (Context context) {
    super(context);
}

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

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

//在Y轴上可以滑动的最大距离 = 总长度 - 当前展示区域长度
private int maxY =0；
  @Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
    maxScrollY=getChildAt(0).getMeasuredHeight() - getHeight();
    super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
@Override
public boolean dispatchTouchEvent(MotionEvent ev) {
    switch (ev.getAction()) {
        case MotionEvent.ACTION_DOWN:
            getParent().getParent().requestDisallowInterceptTouchEvent(true);
            break;
        case MotionEvent.ACTION_MOVE:
            if (getScrollY() > 0 && getScrollY() < maxY)
                getParent().requestDisallowInterceptTouchEvent(true);
            else
                getParent().requestDisallowInterceptTouchEvent(false);
            /*if (getScrollY()==0)
                Log.i("kkk","滑到头了");
            if (getChildAt(0).getMeasuredHeight() == getScrollY() + getHeight())
                Log.i("kkk","滑到底了");*/
            break;
        case MotionEvent.ACTION_UP:
            getParent().getParent().requestDisallowInterceptTouchEvent(false);
            break;
    }
    return super.dispatchTouchEvent(ev);
}

}