iOS8 方向 : supportedInterfaceOrientations called but no orientation change

Question

我有一个导航 Controller :

    //=========================
    - (BOOL)shouldAutorotate;
    {
        return YES;
    }

    - (NSUInteger)supportedInterfaceOrientations
    {
        NSLog(@"Nav: supported Orientation");     
        if ([[self topViewController] respondsToSelector:@selector(supportedInterfaceOrientations)])

       else
          return [super supportedInterfaceOrientations];
    }

    - (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation
    {
        [self.topViewController didRotateFromInterfaceOrientation:fromInterfaceOrientation];
    }

    -(void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration{
        [self.topViewController willRotateToInterfaceOrientation:toInterfaceOrientation duration:duration];
    }

我的 ROOTCTRL 有:

//=========================
- (NSUInteger)supportedInterfaceOrientations
{
    return UIInterfaceOrientationMaskLandscape;
}

-(UIInterfaceOrientation)preferredInterfaceOrientationForPresentation
{
    return UIInterfaceOrientationLandscapeLeft | UIInterfaceOrientationLandscapeRight;
}

-(BOOL)shouldAutorotate
{
    return YES;
}

- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation{
    NSString *risp;
    switch (self.interfaceOrientation) {
        case UIInterfaceOrientationLandscapeLeft:
            risp = @"LAND_LEFT";
            break;
        case UIInterfaceOrientationLandscapeRight:
            risp = @"LAND_RIGHT";
            break;
        case UIInterfaceOrientationPortrait:
            risp = @"PORT";
            break;
        case UIInterfaceOrientationPortraitUpsideDown:
            risp = @"PORT_UPsideDOWN";
            break;
        case UIInterfaceOrientationUnknown:
            risp = @"UNKNOW";
            break;
        default:
            break;
    }
    NSLog(@"HOME didRotate:%@",risp);
}

-(void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration
{

}

UINavigationController的

supportedInterfaceOrientations总是被调用，Home Controller 的supportedInterfaceOrientations也总是被调用；但主页不会从横向左旋转到横向右，反之亦然:

因此，Home ctrl 在启动时具有正确的方向，但如果设备旋转了 Home Controller ，则永远不会旋转...它仅调用supportedInterfaceOrientations 方法(导航 Controller 和根 Controller )，没有任何效果...

我做错了什么？？

Answer 1

如果在 iOS8 上运行并且您的代码在 iOS8 之前就已经存在，请检查以下答案。删除您的应用委托(delegate)中提到的行(如果它存在并且应该开始工作)。

UISplitViewController rotation iOS8 not working as expected