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

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windowroot 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");
}






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