IOS sdk6.0橫屏旋轉設定 (相容sdk6.0以下版本方法)

實現啟動後自動橫屏執行個體（相容sdk6.0以下）：

1.代理修改

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {    if ( [[UIDevice currentDevice].systemVersion floatValue] < 6.0){        [[UIApplication sharedApplication] setStatusBarOrientation: UIInterfaceOrientationLandscapeLeft animated: NO];    }    self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];if (nil==self.bootViewController) {self.bootViewController = [[BootViewController alloc] init];}        //設定顯示方法，其他要添加上去的子控制視圖同理    if ( [[UIDevice currentDevice].systemVersion floatValue] < 6.0){        [self.window addSubview: self.bootViewController.view];    }else {        [self.window setRootViewController:self.bootViewController];    }        [self.window makeKeyAndVisible];}

2.子控制器實現橫屏旋轉

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {if (interfaceOrientation == UIInterfaceOrientationLandscapeLeft) {return YES;}return NO;}-(BOOL)shouldAutorotate{    return YES;}-(NSUInteger)supportedInterfaceOrientations{    return UIInterfaceOrientationMaskLandscapeLeft;}

//其他實現待續....