关于iOS6.0 屏幕旋转的问题

最新的帮助文档里面写到：

In iOS 6, your app supports the interface orientations defined in your app’s Info.plist file.
A view controller can override the supportedInterfaceOrientations method
to limit the list of supported orientations. Generally, the system calls this method only on the root view controller of the window or a view controller presented to fill the entire screen。

在ios6中，一般是在Info.plist里面来设置这个app需要的方向，或者重写 supportedInterfaceOrientations这个方法

一。在Info.plist里面来设置

plist---Supported interface orientations

二。

重写 supportedInterfaceOrientations

重写 supportedInterfaceOrientations这个方法，而且为了系统能够调用这些东西，你需要设置这个view controller是这个window的root
view controller或者弹出充满整个屏幕这个一个view controller。而在coocos2d模板创建的工程当中使用的是：

[window addSubview: viewController.view];

修改为：[window setRootViewController:viewController];

1、首先在appDelegate中，把view添加到window中有两种方式、

[cpp]

self.window.rootViewController = self.view;

[self.window
setRootViewController:self.view.view];

self.window.rootViewController = self.view;

[self.window addSubview:self.view.view];

但是如果用第二种的话，在ios6.0中 再去设置屏幕旋转是没有任何效果的，必须使用第一种。在ios6.0以前的版本是没有这种分别的。

2、 开启全部方向屏幕旋转的方式

iOS6.0之前： 只需这个方法返回yes即可

[cpp] www.2cto.com

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation

{

return YES;

}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation

{

return YES;

} iOS6.0中 需要这三个方法一起使用才可以

[cpp]

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation

{

return (toInterfaceOrientation != UIInterfaceOrientationMaskPortraitUpsideDown);

}

- (BOOL)shouldAutorotate

{

return YES;

}

- (NSUInteger)supportedInterfaceOrientations

{

return UIInterfaceOrientationMaskAllButUpsideDown;

}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation

{

return (toInterfaceOrientation != UIInterfaceOrientationMaskPortraitUpsideDown);

}

- (BOOL)shouldAutorotate

{

return YES;

}

- (NSUInteger)supportedInterfaceOrientations

{

return UIInterfaceOrientationMaskAllButUpsideDown;

}当然了关闭全部方向屏幕旋转的方式则把上面的返回值改为no即可

iOS6.0之前：

[cpp]

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation

{

return NO;

}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation

{

return NO;

} iOS6.0中

[cpp]

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation

{

return (toInterfaceOrientation == UIInterfaceOrientationPortrait);

}

- (BOOL)shouldAutorotate

{

return NO;

}

- (NSUInteger)supportedInterfaceOrientations

{

return UIInterfaceOrientationMaskPortrait;//只支持这一个方向(正常的方向)

}

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation

{

return (toInterfaceOrientation == UIInterfaceOrientationPortrait);

}

- (BOOL)shouldAutorotate

{

return NO;

}

- (NSUInteger)supportedInterfaceOrientations

{

return UIInterfaceOrientationMaskPortrait;//只支持这一个方向(正常的方向)

}

使用屏幕旋转常用的方法

[cpp]

//视图旋转之前自动调用

-(void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration {

NSLog(@"视图旋转之前自动调用");

}

//视图旋转方向发生改变时会自动调用

-(void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration

{

NSLog(@"视图旋转方向发生改变时会自动调用");

}

//视图旋转完成之后会自动调用

-(void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation {

NSLog(@"视图旋转完成之后自动调用");

}

//视图旋转之前自动调用

-(void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration {

NSLog(@"视图旋转之前自动调用");

}

//视图旋转方向发生改变时会自动调用

-(void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration

{

NSLog(@"视图旋转方向发生改变时会自动调用");

}

//视图旋转完成之后会自动调用

-(void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation {

NSLog(@"视图旋转完成之后自动调用");

}