如果有NAVC可能会不好用

你可以复写viewcontroller的下面几个模板函数，试试。

- (BOOL)shouldAutorotate NS_AVAILABLE_IOS(6_0);当前viewcontroller是否支持转屏

- (NSUInteger)supportedInterfaceOrientations；当前viewcontroller支持哪些转屏方向

-(UIInterfaceOrientation)preferredInterfaceOrientationForPresentation当前viewcontroller默认的屏幕方向

可以试试这个方法:

if

([[

UIDevice

currentDevice

]

respondsToSelector

:

@selector

(setOrientation:)]) {

       

       

SEL

selector =

NSSelectorFromString

(

@"setOrientation:"

);

       

       

NSInvocation

*invocation = [

NSInvocation

invocationWithMethodSignature

:[

UIDevice

instanceMethodSignatureForSelector

:selector]];

       

        [invocation

setSelector

:selector];

       

        [invocation

setTarget

:[

UIDevice

currentDevice

]];

       

        int val =

UIInterfaceOrientationLandscapeLeft

; // 选择屏幕旋转的样式

       

        [invocation

setArgument

:&val

atIndex

:

2

];

       

        [invocation invoke];

    }