iOS强制旋转屏幕

// 状态栏动画持续时间
CGFloat duration = [UIApplication sharedApplication].statusBarOrientationAnim<wbr style="color:rgb(70,70,70); font-family:simsun; font-size:14px; line-height:21px; text-align:left"><span style="color:rgb(70,70,70); font-family:simsun; font-size:14px; line-height:21px; text-align:left">ationDuration;</span><br style="color:rgb(70,70,70); font-family:simsun; font-size:14px; line-height:21px; text-align:left"><span style="color:rgb(70,70,70); font-family:simsun; font-size:14px; line-height:21px; text-align:left">// 基础动画</span><br style="color:rgb(70,70,70); font-family:simsun; font-size:14px; line-height:21px; text-align:left"><span style="color:rgb(70,70,70); font-family:simsun; font-size:14px; line-height:21px; text-align:left">[UIView beginAnimations:nil context:nil];</span><br style="color:rgb(70,70,70); font-family:simsun; font-size:14px; line-height:21px; text-align:left"><span style="color:rgb(70,70,70); font-family:simsun; font-size:14px; line-height:21px; text-align:left">[UIView setAnimationDuration:duration];</span><br style="color:rgb(70,70,70); font-family:simsun; font-size:14px; line-height:21px; text-align:left"><span style="color:rgb(70,70,70); font-family:simsun; font-size:14px; line-height:21px; text-align:left">// 修改状态栏的方向及view的方向进而强制旋转屏幕</span><br style="color:rgb(70,70,70); font-family:simsun; font-size:14px; line-height:21px; text-align:left"><span style="color:rgb(70,70,70); font-family:simsun; font-size:14px; line-height:21px; text-align:left">[[UIApplication sharedApplication] setStatusBarOrientation:UIInterfaceOrientationLa</span><wbr style="color:rgb(70,70,70); font-family:simsun; font-size:14px; line-height:21px; text-align:left"><span style="color:rgb(70,70,70); font-family:simsun; font-size:14px; line-height:21px; text-align:left">ndscapeRight];</span><br style="color:rgb(70,70,70); font-family:simsun; font-size:14px; line-height:21px; text-align:left"><span style="color:rgb(70,70,70); font-family:simsun; font-size:14px; line-height:21px; text-align:left">self.navigationController.view.transform = CGAffineTransformIdentit</span><wbr style="color:rgb(70,70,70); font-family:simsun; font-size:14px; line-height:21px; text-align:left"><span style="color:rgb(70,70,70); font-family:simsun; font-size:14px; line-height:21px; text-align:left">y;</span><br style="color:rgb(70,70,70); font-family:simsun; font-size:14px; line-height:21px; text-align:left"><span style="color:rgb(70,70,70); font-family:simsun; font-size:14px; line-height:21px; text-align:left">self.navigationController.view.transform = CGAffineTransformMakeRot</span><wbr style="color:rgb(70,70,70); font-family:simsun; font-size:14px; line-height:21px; text-align:left"><span style="color:rgb(70,70,70); font-family:simsun; font-size:14px; line-height:21px; text-align:left">ation(M_PI / 2);</span><br style="color:rgb(70,70,70); font-family:simsun; font-size:14px; line-height:21px; text-align:left"><span style="color:rgb(70,70,70); font-family:simsun; font-size:14px; line-height:21px; text-align:left">self.navigationController.view.bounds = CGRectMake(self.navigationController.view.bounds.origin.x, self.navigationController.view.bounds.origin.y, kHorizontalWidth, kHorizontalHeight + 20);</span><br style="color:rgb(70,70,70); font-family:simsun; font-size:14px; line-height:21px; text-align:left"><br style="color:rgb(70,70,70); font-family:simsun; font-size:14px; line-height:21px; text-align:left"></wbr></wbr></wbr></wbr>

[UIView commitAnimations];

转自：http://blog.sina.com.cn/s/blog_621403ef01011mn7.html