iOS两个强制旋转屏幕的方法

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