关于iOS6.0 屏幕旋转的问题

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 addSubview: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");
}