iphone - iphone 方向

Question

可能重复：
如何在特定视图控制器中强制屏幕方向？

你好

我想在一个特定的视图中设置方向，所以我该怎么做。和body有例子。我用过

-(void)onUIDeviceOrientationDidChangeNotification:(NSNotification*)notification{
    UIViewController *tvc = self.navigationController.topViewController;
    UIDeviceOrientation orientation = [[ UIDevice currentDevice ] orientation ];
    tabBarController.view.hidden = YES;
    // only switch if we need to (seem to get multiple notifications on device)
    if( orientation != [[ UIApplication sharedApplication ] statusBarOrientation ] ){
        if( [ tvc shouldAutorotateToInterfaceOrientation: orientation ] ){
            [ self rotateInterfaceToOrientation: orientation ];
        }
    }
}

但它完成的是整个应用程序，我只想在一个屏幕上完成，所以请回复谢谢

Answer 1

// Override to allow orientations other than the default portrait orientation.
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    // Return YES for supported orientations
    // Over ride this method in your required view controller to display only in the necessary orientation
}

Answer 2

在您的课程中添加此方法

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    // Return YES for supported orientations
    // Over ride this method in your required view controller to display only in the necessary orientation
     return YES;
}

Answer 3

在一个特殊的视图控制器上

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    // Return YES for supported orientations
    return (interfaceOrientation == UIInterfaceOrientationPortrait);
}

这是给其他人的肖像，你可以做同样的事情