IOS学习之响应设备的横竖屏状态,旋转界面达到横竖屏效果
监听 UIDeviceOrientationDidChangeNotification的广播,再根据[[UIDevice currentDevice] orientation]获取到屏幕的方向。

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-(void) viewDidLoad {
// Request to turn on accelerometer and begin receiving accelerometer events
[[UIDevice currentDevice] beginGeneratingDeviceOrientationNotifications];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(orientationChanged:) name:UIDeviceOrientationDidChangeNotification object:nil];
}
- (void)orientationChanged:(NSNotification *)notification {
// 获取当前屏幕方向interfaceOrientation
UIDeviceOrientation orientation = [[UIDevice currentDevice] orientation];
if (orientation == UIDeviceOrientationLandscapeLeft) {// 左横屏
[self allPlay];
} else {// 其他的都是正竖屏
[self normalPlay];
}
}
-(void) viewDidDisappear {
// Request to stop receiving accelerometer events and turn off accelerometer
[[NSNotificationCenter defaultCenter] removeObserver:self];
[[UIDevice currentDevice] endGeneratingDeviceOrientationNotifications];
}
- (void) allPlay {
// 按钮
[self.allScreenPlayBtn setHidden:YES];
[self.normalPlayBtn setHidden:NO];
// 状态栏
isStatusBaeHidden = YES;
[self prefersStatusBarHidden]; // 是否隐藏状态栏
// 导航栏
[self.navigationController setNavigationBarHidden:YES animated:YES];
// view旋转
[UIView beginAnimations:@"rotate" context:nil];
[UIView setAnimationDuration:0.6f];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
self.cbPlayer.view.transform = CGAffineTransformRotate(self.view.transform, M_PI_2);
self.normalPlayBtn.transform = CGAffineTransformRotate(self.normalPlayBtn.transform, M_PI_2);
[UIView commitAnimations];
CGSize size = [[UIScreen mainScreen] bounds].size;
CGRect rect = CGRectMake(0, -20, size.width, size.height);
[self.cbPlayer.view setFrame:rect];
}
- (void) normalPlay {
// 按钮
[self.allScreenPlayBtn setHidden:NO];
[self.normalPlayBtn setHidden:YES];
// 状态栏
isStatusBaeHidden = NO;
[self prefersStatusBarHidden];
// 导航栏
[self.navigationController setNavigationBarHidden:NO animated:YES];
// view旋转
[UIView beginAnimations:@"rotate" context:nil];
[UIView setAnimationDuration:0.6f];
[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];
self.cbPlayer.view.transform = CGAffineTransformRotate(self.view.transform, 0);
self.normalPlayBtn.transform = CGAffineTransformRotate(self.normalPlayBtn.transform, 0);
[UIView commitAnimations];
[self.cbPlayer.view setFrame:self.playView.frame];
}
标题名称:IOS学习之响应设备的横竖屏状态,旋转界面达到横竖屏效果
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