如果需要大部分界面只支持竖屏,部分页面支持横屏,需要这样写:
如果这几个方法不起作用，那么估计是你的viewcontroller加在了nav中或tab中，再或者加入nav然后nav加入了tab，那么就要重写nav或tab的这三个方法：
tab中：
- (BOOL)shouldAutorotate{
return [[self.viewControllers objectAtIndex:(int)self.selectedIndex] shouldAutorotate];
}
- (UIInterfaceOrientationMask)supportedInterfaceOrientations{
return [[self.viewControllers objectAtIndex:(int)self.selectedIndex] supportedInterfaceOrientations];
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation{
return [[self.viewControllers objectAtIndex:(int)self.selectedIndex] preferredInterfaceOrientationForPresentation];
}
nav中：
- (BOOL)shouldAutorotate{
return [self.viewControllers.lastObject shouldAutorotate];
}
- (UIInterfaceOrientationMask)supportedInterfaceOrientations{
return [self.viewControllers.lastObject supportedInterfaceOrientations];
}
- (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation{
return [self.viewControllers.lastObject preferredInterfaceOrientationForPresentation];
}
最后在需要横屏或竖屏的controller中再重写以上三个方法。
