强行触发shouldAutorotateToInterfaceOrientation

// 先可通过UIApplication的setStatusBarOrientation方法更改状态条方向

// 然后以下代码实现强制触发shouldAutorotateToInterfaceOrientation

UIWindow *window = [[UIApplication shareApplication] keyWindow];
UIView *view = [window.subviews objectAtIndex:0];
[view removeFromSuperview];
[window addSubview:view];