iOS两个强制旋转屏幕的方法

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第一个：

    // 状态栏动画持续时间    CGFloat duration = [UIApplication sharedApplication].statusBarOrientationAnimationDuration;    [UIView animateWithDuration:duration animations:^{        // 修改状态栏的方向及view的方向进而强制旋转屏幕        [[UIApplication sharedApplication] setStatusBarOrientation:_bottomView.landscapeModel ? UIInterfaceOrientationLandscapeRight : UIInterfaceOrientationPortrait];        self.navigationController.view.transform = _bottomView.landscapeModel ? CGAffineTransformMakeRotation(M_PI_2) : CGAffineTransformIdentity;        self.navigationController.view.bounds = CGRectMake(self.navigationController.view.bounds.origin.x, self.navigationController.view.bounds.origin.y, self.view.frame.size.height, self.view.frame.size.width);    }];

第二个：

非arc：

if ([[UIDevice currentDevice] respondsToSelector:@selector(setOrientation:)]) {  [[UIDevice currentDevice] performSelector:@selector(setOrientation:)  withObject:(id)UIInterfaceOrientationLandscapeRight];  }

arc下：

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 = UIInterfaceOrientationLandscapeRight;            [invocation setArgument:&val atIndex:2];            [invocation invoke];        }