[置顶] iOS如何指定某个页面可以旋转屏幕，其余控制器都正常竖屏

/**

iOS如何指定某个页面可以旋转屏幕，其余控制器都正常竖屏？

在你要旋转的controller中一开始的地方写这两句就可以了

- (void)setupView{

AppDelegate  *appDelegate = (AppDelegate *)[UIApplication sharedApplication].delegate;

appDelegate.allowRotation = 1;

}

- (void)viewWillDisappear:(BOOL)animated{
[super viewWillDisappear:animated];

AppDelegate  *appDelegate = (AppDelegate *)[UIApplication sharedApplication].delegate;

appDelegate.allowRotation = 0;

}

@param application <#application description#>
@param window <#window description#>
@return <#return value description#>
*/
- (UIInterfaceOrientationMask)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window
{
if (_allowRotation == 1) {
return UIInterfaceOrientationMaskAllButUpsideDown;
}else{
return (UIInterfaceOrientationMaskPortrait);
}
}

// 支持设备自动旋转
- (BOOL)shouldAutorotate
{
if (_allowRotation == 1) {
return YES;
}
return NO;
}