iPhone 横竖屏切换，全屏播放的三种方式

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1. 调用系统自带的强制屏幕旋转不过还得在AppDelegate中重写下面方法

- (UIInterfaceOrientationMask)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window
{
// 0:竖屏，1:单向横屏，2:双向横屏
if (self.httpConnect.SupportedOrientation==) {
return UIInterfaceOrientationMaskPortrait;
}
else if (self.httpConnect.SupportedOrientation==){
return UIInterfaceOrientationMaskLandscapeRight;
}
else{
return UIInterfaceOrientationMaskAllButUpsideDown;
}
}

在Viewcontroller中添加下面方法

-(BOOL)shouldAutorotate
{
return NO;
}

- (void)hideNavigationAndTabBar:(BOOL)state {

[self.navigationController.navigationBar setHidden: state];

[self.tabBarController.tabBar setHidden: state];

[[UIApplication sharedApplication] setStatusBarHidden:state];

}

- (void)gotoFullScreenMode { self.movieView.frame = CGRectMake(, , SCREEN_HEIGHT, SCREEN_WIDTH); [self hideNavigationAndTabBar:YES];
self.httpConnect.SupportedOrientation = ; [[UIDevice currentDevice] setValue:[NSNumber numberWithInteger:UIDeviceOrientationLandscapeRight] forKey:@"orientation"];
}- (void)backToPortraitMode { [UIView animateWithDuration:0.2 animations:^{ self.httpConnect.SupportedOrientation = ;
[self hideNavigationAndTabBar:NO]; [[UIDevice currentDevice] setValue:[NSNumber numberWithInteger:UIDeviceOrientationPortrait] forKey:@"orientation"];
} completion:nil];
}

2. 全屏播放利用[UIApplication sharedApplication].keyWindow，主要代码如下

//不过这种方式麻烦一点，全屏时把movieView从self.view中移到keyWindow当中去；退回全屏时又得把movieView从keyWindow中加到movieView中去，还得重新考虑布局，不推荐这种方式；

iOS8 之后 [UIScreen bounds] 的宽高会随屏幕方向改变

[UIScreen bounds] now interface-oriented
[UIScreen applicationFrame] now interface-oriented

#define AppKeyWindow ([UIApplication sharedApplication].keyWindow)
- (void) gotoPlayVideoInFullScreen { [[UIApplication sharedApplication]setStatusBarHidden:YES withAnimation:UIStatusBarAnimationFade]; [AppKeyWindow addSubview: self.movieView];
self.movieView.transform = CGAffineTransformMakeRotation(M_PI_2);
self.movieView.frame = CGRectMake(, , SCREEN_WIDTH, SCREEN_HEIGHT);
}- (void)backToNormalState { [[UIApplication sharedApplication]setStatusBarHidden:NO withAnimation: UIStatusBarAnimationSlide];
self.movieView.transform = CGAffineTransformIdentity;
[self.movieView removeFromSuperview]; [self.view addSubview:self.movieView];
}

3. 第三种最方便快捷的，直接对self.view进行动画旋转，代码如下

- (void)gotoPlayVideoInLandscapeMode{ [self hideNavigationAndTabBar:YES];
self.view.transform = CGAffineTransformMakeRotation(M_PI/);
CGRect frame = [UIScreen mainScreen].applicationFrame;
self.view.bounds = CGRectMake(, , frame.size.height, frame.size.width);
}- (void)gotoPlayVideoInPortraitMode { self.view.transform = CGAffineTransformIdentity;
[self hideNavigationAndTabBar:NO];
[self.view layoutIfNeeded];
}- (void)hideNavigationAndTabBar:(BOOL)state { [self.navigationController.navigationBar setHidden: state];
[self.tabBarController.tabBar setHidden: state];
[[UIApplication sharedApplication] setStatusBarHidden:state];
}