Trying to prevent orientation change on an iPhone 4

Question

I have a rotation (orientation change) issue in an iOS app. The app has several view controllers to navigate.

I want it to be possible to rotate except for iPhone 4 (3.5 inches devices). On a 3.5 inches device it shoulld always stay in portrait mode.

I am able to prevent direct rotation, that is when inside a view controller, if the user holds the device in portrait mode an them in landscape mode nothing happens. This is exactly what I want.

Problems happen when changing view controller while holding in landscape mode. In this case the new view controller shows up in landscape mode, and I don't want that.

I tried to use

- (BOOL)shouldAutorotate;

returning NO when the device is 3.5 inches but that does not work.

How can I prevent this behavior?

I may need to add one detail: the 3.5 inches device I am using to test runs iOS version 9.3.5.

I am using Xcode 9.4.1.

score 1 · Accepted Answer · edited Sep 04 '18 at 17:29

1

You can use the method supportedInterfaceOrientations.

For example:

Objective c

-(UIInterfaceOrientationMask)supportedInterfaceOrientations
{
    //return your preferred orientation 
    return UIInterfaceOrientationMaskPortrait;
}

edited Sep 04 '18 at 17:29

Michel

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answered Sep 04 '18 at 10:03

Enrique Bermúdez

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To be precise and exact I needed to make a slight fix, but you gave me the way to go. I fixed your code so it works if other people look at this post. – Michel Sep 04 '18 at 17:32

score 0 · Answer 2 · answered Sep 04 '18 at 10:48

0

You need add this code in AppDelegate.m. iPhone 4/ iPhone 4s has screen height of 480 points.

Objective-C

- (UIInterfaceOrientationMask)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(nullable UIWindow *)window
{
    if(self.window.bounds.size.height > 500) {
        return (UIInterfaceOrientationMaskLandscape | UIInterfaceOrientationMaskPortrait);
    } else {
        return UIInterfaceOrientationMaskPortrait;
    }
}

You may also need to enable Require Full Screen in Target's Deployment Info.

answered Sep 04 '18 at 10:48

Sunny

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This does not seem necessary in my case. – Michel Sep 04 '18 at 11:26
well ok, no issue. – Sunny Sep 04 '18 at 11:36

Trying to prevent orientation change on an iPhone 4

2 Answers2