UIView的CGPoint

Question

我們如何獲得UIView的全部四個座標？我認爲這就是它。

CGPoint viewOriginX = [self.view convertPoint:self.view.frame.origin fromView:nil]; 

但是，CGPoint的右上角，左下角和右下角點呢？

Answer 1

CGRect frame = [self.view frame]; 
CGPoint topLeft = CGPointMake(CGRectGetMinX(frame), CGRectGetMinY(frame)); 
CGPoint topRight = CGPointMake(CGRectGetMaxX(frame), CGRectGetMinY(frame)); 
CGPoint bottomLeft = CGPointMake(CGRectGetMinX(frame), CGRectGetMaxY(frame)); 
CGPoint bottomRight = CGPointMake(CGRectGetMaxX(frame), CGRectGetMaxY(frame)); 

如果您需要在特定視圖中的座標，第一行應該像

CGRect frame = [self.view convertRect:[self.view bounds] toView:someOtherView];