// 将像素point由point所在视图转换到目标视图view中,返回在目标视图view中的像素值
- (CGPoint)convertPoint:(CGPoint)point toView:(UIView *)view;
// 将像素point从view中转换到当前视图中,返回在当前视图中的像素值
- (CGPoint)convertPoint:(CGPoint)point fromView:(UIView *)view;
// 将rect由rect所在视图转换到目标视图view中,返回在目标视图view中的rect
- (CGRect)convertRect:(CGRect)rect toView:(UIView *)view;
// 将rect从view中转换到当前视图中,返回在当前视图中的rect
- (CGRect)convertRect:(CGRect)rect fromView:(UIView *)view;
例 把 UITableViewCell 中的 subview(contentView) 的 frame 转换 到 controller 中
UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
CGRect rect = [cell convertRect:cell.contentView.frame toView:self.view];
CGRect rect1 = [self.view convertRect:cell.textLabel.frame fromView:cell];
NSLog(@"%@---%@",NSStringFromCGRect(rect),NSStringFromCGRect(rect1));
CGPoint point = [self.view convertPoint:cell.contentView.center fromView:cell.contentView];
CGPoint point1 = [cell.contentView convertPoint:cell.contentView.center toView:self.view];
NSLog(@"%@>>>%@",NSStringFromCGPoint(point),NSStringFromCGPoint(point1));
输出
UIViewTest[10444:760134] {{0, 0}, {375, 43.5}}---{{0, 0}, {0, 0}}
UIViewTest[10444:760134] {187.5, 21.75}>>>{187.5, 21.75}
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