键盘在ios中出现错误的方向

问题描述

我在支持横向和纵向方向的应用程序中有一个 viewcontroller.

I have one viewcontroller in application that supports landscape and portrait orientations.

单击按钮时，会出现一个弹出窗口，我应该在其中输入名称.在纵向模式下一切正常.

On a button click, a popup appears where I should enter the name. everything works as it should on portrait mode.

但是如果我关闭键盘，向左或向右旋转设备然后打开弹出窗口，键盘仍然以纵向模式打开.

But if I dismiss the keyboard, rotate the device left or right and then open the popup, keyboard still opens in portrait mode.

我在 viewcontroller 中 shouldAutorotate 返回 true 并且 supportedInterfaceOrientations 返回 AllButUpsideDown，所以旋转会自动发生.

I've shouldAutorotate returning true and supportedInterfaceOrientations returning AllButUpsideDown in viewcontroller, so rotation happens automatically.

我尝试了这个和this 选项，但它们都不起作用.

I tried this and this options but none of them work.

知道该怎么做吗?

推荐答案

好的，修复了，我猜是我的错.

Ok, fixed it, my fault I guess.

似乎键盘和 UIViewController 分别调用 supportedInterfaceOrientations 并根据其返回值进行旋转.我在那里有一个 if-else 语句，并且仅在某些情况下返回 AllButUpsideDown.当键盘检查是否应该旋转方法时返回Portrait，而viewcontroller 的值为AllButUpsideDown.

It seems Keyboard and UIViewController call supportedInterfaceOrientations separately and rotate based on its return value. I had an if-else statement in there and was returning AllButUpsideDown only in some cases. When keyboard checked whether it was supposed to rotate method returned Portrait, and for viewcontroller value was AllButUpsideDown.

所以我改变了这个:

public override UIInterfaceOrientationMask GetSupportedInterfaceOrientations()
    {
        if (someStatement)
        {
            return UIInterfaceOrientationMask.AllButUpsideDown;
        }
        return UIInterfaceOrientationMask.Portrait;
    }

为此:

    public override UIInterfaceOrientationMask GetSupportedInterfaceOrientations()
    {
        return UIInterfaceOrientationMask.AllButUpsideDown;
    }

现在只有 ShouldAutoRotate 决定是否应该旋转.

And now only ShouldAutoRotate decides whether it rotation should happen or not.

有些人应该是这样的:

public override bool ShouldAutorotate()
    {
        if (someStatement)
        {
            return true;
        }
        return false;
    }

    public override UIInterfaceOrientationMask GetSupportedInterfaceOrientations()
    {
        return UIInterfaceOrientationMask.AllButUpsideDown;
    }

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