两个强制屏幕旋转的方法

第一个：

 

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// 状态栏动画持续时间 

CGFloat duration = [UIApplicationsharedApplication].statusBarOrientationAnimationDuration; 

[UIView animateWithDuration:durationanimations:^{ 

    //修改状态栏的方向及view的方向进而强制旋转屏幕 

    [[UIApplicationsharedApplication]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:)]){ 

  [[UIDevicecurrentDevice]performSelector:@selector(setOrientation:) 

  withObject:(id)UIInterfaceOrientationLandscapeRight]; 

  } 

 

 

arc下：

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

            SELselector = NSSelectorFromString(@"setOrientation:"); 

            NSInvocation*invocation = [NSInvocation invocationWithMethodSignature:[UIDeviceinstanceMethodSignatureForSelector:selector]]; 

            [invocationsetSelector:selector]; 

            [invocationsetTarget:[UIDevice currentDevice]]; 

            intval =UIInterfaceOrientationLandscapeRight; 

            [invocationsetArgument:&val atIndex:2]; 

            [invocationinvoke]; 

        }