CGAffineTransformRotate doesn't work like expect

Question

My code like follow

self.view1.layer.anchorPoint = CGPointMake(1.0, 0.5);
CGAffineTransform transform = CGAffineTransformRotate(self.view1.transform,M_PI/2);
self.view1.transform = transform;

My UI is like follow

enter image description here

The light green background view is view1,it has a subview a label.If i run the code, in my opinion the view and the label will rotated M_PI/2 around the progressview's left point.But the truth is like follow:

enter image description here

I think your view 1 might not be what you think. Is it defined in a storyboard? Are you sure you have view1 linked to the view, or is it just linked to the label? — HalR, Feb 17 '14 at 08:21
Check if you have any autolayout constraint. I have seen that the behavior is different and unpredictable with some constraints. To be sure, debug disabling autolayout and removing all the autosizing masks — LombaX, Feb 17 '14 at 08:55
@LombaX yes, you are right. How can i do it with autolayout? — Dracuuula, Feb 17 '14 at 09:38
Check this post ;-) http://stackoverflow.com/questions/12943107/how-do-i-adjust-the-anchor-point-of-a-calayer-when-auto-layout-is-being-used/14105757#14105757 — LombaX, Feb 17 '14 at 10:31

score 0 · Answer 1 · answered Feb 17 '14 at 08:24

0

Add

NSLog(@"%@", self.view1);

To check that self.view1 - is a background view, not the label. Also I think you need to change anchorPoint.

answered Feb 17 '14 at 08:24

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I'm sorry the cyan backgroundcolor view is view1 – Dracuuula Feb 17 '14 at 08:43
This is more a comment asking for clarification, than it is an answer – David Rönnqvist Feb 17 '14 at 08:43
@Dracuuula I expect so. It is your code :) – Avt Feb 17 '14 at 08:47

CGAffineTransformRotate doesn't work like expect

1 Answers1