判断两个Frame是否有一半的重叠

//判断 是否有一半的frame重叠

-(BOOL)isHaveHalfFrameOverlapWithFirstFrame:(CGRect)frame1 theSecondFrame:(CGRect)frame2

{

  CGFloatx1 =MIN(CGRectGetMaxX(frame2), CGRectGetMaxX(frame1));

    CGFloatx2 =MAX(CGRectGetMinX(frame2), CGRectGetMinX(frame2));

    CGFloatoverLapX = x1-x2;

    if(overLapX < frame2.size.width/2)

    {

        return  NO;

   }

    CGFloaty1 =MIN(CGRectGetMaxY(frame2), CGRectGetMaxY(frame1));

    CGFloaty2 =MAX(CGRectGetMinY(frame2), CGRectGetMinY(frame2));

    CGFloatoverLapY = y1-y2;

    if(overLapY < frame2.size.height/2)

    {

        return  NO;

    }

    return YES;

}