当接口在Iphone中旋转时,有没有办法调用函数？

Question

当我的界面旋转时,我想调用某些功能.我该怎么做这些动作？

Answer 1

取决于你想做什么,

在活动视图控制器类中实现其中一些方法:

• -willRotateToInterfaceOrientation:duration:
• -willAnimateRotationToInterfaceOrientation:duration:
• -didRotateFromInterfaceOrientation:

或者您的app代理中的某些方法:

• -application:willChangeStatusBarOrientation:duration:
• -application:didChangeStatusBarOrientation:

或者听一些本地通知:

• UIApplicationWillChangeStatusBarFrameNotification
• UIApplicationDidChangeStatusBarFrameNotification
• UIApplicationWillChangeStatusBarOrientationNotification
• UIApplicationDidChangeStatusBarOrientationNotification

Answer 2

你可以用这个:

   [[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];

   [[NSNotificationCenter defaultCenter] addObserver:self
      selector:@selector(yourMethod:)
      name:@"UIDeviceOrientationDidChangeNotification" object:nil];