1.基於導航的試圖控制器翻轉，需要展示導航欄，因為不支持狀態欄旋轉，所以屏蔽了狀態欄
以下代碼寫在需要單獨翻轉的VC中。
- (void)viewDidLoad {
[super viewDidLoad];
//以下代碼用於隱藏狀態欄
if ([self respondsToSelector:@selector(setNeedsStatusBarAppearanceUpdate)]) {
[self prefersStatusBarHidden];
[self performSelector:@selector(setNeedsStatusBarAppearanceUpdate)]
}
}
- (BOOL)prefersStatusBarHidden {
return YES;//隱藏為YES，顯示為NO
}
- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:YES];
//視圖將要顯示時 翻轉
CGFloat duration = [UIApplication sharedApplication].statusBarOrientationAnimationDuration;//時間
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:duration];
self.navigationController.view.transform = CGAffineTransformIdentity;
self.navigationController.view.transform = CGAffineTransformMakeRotation(M_PI*1.5);//翻轉角度
self.navigationController.view.bounds = CGRectMake(0, 0, [[UIScreen mainScreen] bounds].size.height, [[UIScreen mainScreen] bounds].size.width);
[UIView commitAnimations];
}
- (void)viewWillDisappear:(BOOL)animated {
[super viewWillDisappear:YES];
//視圖將要消失的時候 再把視圖翻轉回來 ，不會影響其他VC的展示
CGFloat duration = [UIApplication sharedApplication].statusBarOrientationAnimationDuration;
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:duration];
self.navigationController.view.transform = CGAffineTransformIdentity;
self.navigationController.view.transform = CGAffineTransformMakeRotation(M_PI*2);
self.navigationController.view.bounds = CGRectMake(0, 0, [[UIScreen mainScreen] bounds].size.width, [[UIScreen mainScreen] bounds].size.height);
[UIView commitAnimations];
}
2. 不需要展示導航欄的，或者因為需求想要自定義導航欄的 ，只需要在 viewWillAppear 方法里面加上 隱藏導航欄的代碼
self.navigationController.navigationBar.hidden = YES;
在 viewWillAppear 方法的翻轉動畫的代碼中 改成對view做翻轉就行，如下：
self.view.bounds = CGRectMake(0, 0, [[UIScreen mainScreen] bounds].size.width, [[UIScreen mainScreen] bounds].size.height);
self.view.transform = CGAffineTransformMakeRotation(M_PI*1.5);
然后在視圖將要消失的時候將導航欄的hidden再改為NO，注意 因為只是對當前vc的view做翻轉，所以不會影響導航控制器，也就是當前頁面的翻轉不會影響到其他頁面，
所以在viewWillDisappear里面 不需要再對view做旋轉了。