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]; }
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