屏幕旋转--强转（可用）

来源：互联网发布：vb中range对象编辑：程序博客网时间：2024/05/22 13:00

if ([[UIDevice currentDevice] respondsToSelector:@selector(setOrientation:)])

            {

                NSNumber *num = [[NSNumber alloc] initWithInt:(m_bScreen?UIInterfaceOrientationLandscapeRight:UIInterfaceOrientationPortrait)];



                [[UIDevice currentDevice] performSelector:@selector(setOrientation:) withObject:(id)num];

                [UIViewController attemptRotationToDeviceOrientation];//这行代码是关键

            }

            SEL selector=NSSelectorFromString(@"setOrientation:");

            NSInvocation *invocation =[NSInvocation invocationWithMethodSignature:[UIDevice instanceMethodSignatureForSelector:selector]];

            [invocation setSelector:selector];

            [invocation setTarget:[UIDevice currentDevice]];

            int val =m_bScreen?UIInterfaceOrientationLandscapeRight:UIInterfaceOrientationPortrait;

            [invocation setArgument:&val atIndex:2];

            [invocation invoke];

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