在目标iOS 5.1上以xcode 4.6.2运行的iOS 5.1 App是否无法限制某些视图的方向？

Question

I developed an app with Xcode 4.4 and iOS 5.1. I updated Xcode to 4.6.2 and iOS is 6.1, but I have selected the target as iOS 5.1 (even though I am using Xcode 4.6.2). My app supports all orientations.

My question is: I want to restrict some views in landscape mode, it is working fine in the simulator but when I am running the app in iPhone 5 device, my methods are not working, kindly help me?

Answer 1

In your view controller(s) where you want to restrict your orientation I would do the following:

-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    return interfaceOrientation == UIInterfaceOrientationLandscape;
}

Regarding your iPhone 5 the shouldAutorotateToInterfaceOrientation was deprecated with iOS6 so you're going to have to do an OS check and implement/override the supportedInterfaceOrientations and preferredInterfaceOrientationForPresentation methods instead.

Answer 2

I use this in my app and it works perfect!

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {

    return UIInterfaceOrientationIsLandscape(interfaceOrientation);
    return (interfaceOrientation == UIInterfaceOrientationLandscapeLeft);
}

When you want a view only for portrait use this:

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {

    return UIInterfaceOrientationIsPortrait(interfaceOrientation);
    return (interfaceOrientation == UIInterfaceOrientationPortrait);
}