如何强制水平方向？ [英] How to force horizontal orientation?

问题描述

我想要执行以下操作：

ViewControllerA不应该进入水平方向
ViewControllerA推动ViewControllerB
ViewControllerB应该进入水平方向。

ViewControllerA should not go into horizontal orientation ViewControllerA pushes ViewControllerB ViewControllerB should go into horizontal orientation.

不确定要执行哪些操作。

Not sure what to set to make this happen.

推荐答案

在每个 UIViewController 中，您需要重写 shouldAutorotateToInterfaceOrientation 方法，并为您支持的每个接口方向返回一个布尔值：

In each UIViewController, you'll need to override the shouldAutorotateToInterfaceOrientation method and return a boolean value for each interface orientation you support:

// ViewControllerA
-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    return (interfaceOrientation == UIInterfaceOrientationPortrait);
}

// ViewControllerB
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    return (interfaceOrientation == UIInterfaceOrientationPortrait ||
            interfaceOrientation == UIInterfaceOrientationLandscapeLeft ||
            interfaceOrientation == UIInterfaceOrientationLandscapeRight);
}

有关更多信息，请查看 UIViewController 类别参考。

For more information, check out the UIViewController class reference.

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