ListVIew中包含水平滑动控件，左右滑动时容易触发上下滑动

Posted 2020-08-09 guangdeshishe

 

自定义ListView

import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.widget.ListView;

public class LiveCustomListView extends ListView {
  public LiveCustomListView(Context context) {
    super(context);
  }

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

  private float mLastX;
  private float mLastY;

  @Override
  public boolean onInterceptTouchEvent(MotionEvent ev) {
    //避免左右滑动水平图片时容易触发上下滑动列表
    switch (ev.getAction()) {
      case MotionEvent.ACTION_DOWN:
        mLastX = ev.getX();
        mLastY = ev.getY();
        break;
      case MotionEvent.ACTION_MOVE:
        if (Math.abs(mLastX - ev.getX()) > Math.abs(mLastY - ev.getY())) {
          return false;
        }
        break;
      case MotionEvent.ACTION_UP:
      case MotionEvent.ACTION_CANCEL:
        break;
    }
    return super.onInterceptTouchEvent(ev);
  }
}