UIView的CGPoints

Question

我们如何获得UIView的所有四个坐标？我以为这就是它。

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

但是右上角，左下角和右下角的CGPoint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));

如果您需要特定视图中的坐标，第一行应该是

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