启用iPhone界面方向

Question

I'm trying to get my application to rotate the interface when the device itself is rotated, but I can't get it right. I have added the supported interfaces in the plist info file and returned yes for the shouldRotateToInterfaceOrientation.

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {  
    if (interfaceOrientation == UIInterfaceOrientationPortrait || interfaceOrientation == UIInterfaceOrientationLandscapeLeft || interfaceOrientation == UIInterfaceOrientationLandscapeRight) {  
        return YES;  
    } else {  
        return NO;  
    }  
}

Is this how rotation is implemented?
Please help!

Answer 1

Maybe try editing the info.plist and also add your supported orientations there?

Select your project --> Select your target --> Info --> Supported interface orientations and click on the plus sign 4 times to support these orientations:

Item 0   Landscape (left home button)
Item 1   Landscape (right home button)
Item 2   Portrait (top home button)
Item 3   Portrait (bottom home button)

Hope it helps!

Answer 2

Make sure you've added shouldRotateToInterfaceOrientation to the view controllers that you want to support different orientations. It doesn't go in the app delegate.

Answer 3

Supporting orientation is straight-forward if you're using standard UI elements so, assuming that's the case, you're on the right track.

If you're using a UITabController, all the views must support the same orientations, otherwise it defaults to the minimum (eg Portrait), I believe.

Also, if you're using NIBs for your views, make sure you have 'Autoresize subviews' checked when configuring the view in Interface Builder.

Answer 4

if you are using UITabBarController , then you'll need to call it's subviews' shouldAutoratateToInterfaceOrientation .

suppose you have two tabs, please try to add the following two lines to method shouldAutorotateToInterfaceOrientation in the class that uses the UITabViewController .

[[tabBarController.viewControllers objectAtIndex:0] shouldAutorotateToInterfaceOrientation:interfaceOrientation];
[[tabBarController.viewControllers objectAtIndex:1] shouldAutorotateToInterfaceOrientation:interfaceOrientation];

of course the "tabBarController" must be linked to the UITabBarController in your XIB file via IB.

Thanks,