【Topics Generic】Launching in Landscape Mode

Launching in Landscape Mode

Apps that uses only landscape orientations for their interface must explicitly ask the system to launch the appin that orientation. Normally, apps launch in portrait mode and rotate their interface to match the deviceorientation as needed. For apps that support both portrait and landscape orientations, always configure yourviews for portrait mode and then let your view controllers handle any rotations. If, however, your app supportslandscape but not portrait orientations, perform the following tasks to make it launch in landscape modeinitially:

• Add the UIInterfaceOrientation key to your app’s Info.plist file and set the value of this key toeither UIInterfaceOrientationLandscapeLeft or UIInterfaceOrientationLandscapeRight.
• Lay out your views in landscape mode and make sure that their layout or autosizing options are setcorrectly.
• Override your view controller’s shouldAutorotateToInterfaceOrientation: method and returnYES for the left or right landscape orientations and NO for portrait orientations.