Autolayout and Device Orientation

autolayout, autorotate, device-orientation, ios, iphone

Solution

I would use this UIViewController's method:

`- (void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration;`

that is called upon rotation, and call `-setNeedsUpdateConstraints` from there. If you need to do additional calculations or manage the contrainsts add

- (void)updateViewConstraints
{
    [super updateViewConstraints];
    // do calculations if needed, like set constants
}

Problem

I am developing an application which `supports portrait and landscape modes`. I am using `auto layout to arrange my views`. As i have been reading many posts and i have realized that developers commonly use one among the following approaches. 1. First approach: Implement the `UIViewController:updateConstraints` method and update constraints according to device orientation. 2. Second approach: Implement the `UIViewController:viewWillLayoutSubviews` method and update constraints according to device orientation. Could anyone please tell me what is the best approach to use ? I have been searching for a best practice to combine autorotation and auto layout and nothing yet. Thanks.

Original source

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