如何强制＆QUOT;尊重语言方向和QUOT;从RTL到LTR，反之亦然 [英] How to force "Respect Language Direction" from RTL to LTR and vice versa

问题描述

我有一个使用自动布局的应用程序。

I have an application which uses Auto Layouts.

该应用程序切换RTL和LTR语言完美，当用户选择他或她的设备手机语言。所有的文本本地化和语言方向工作。

The app switches RTL and LTR languages perfectly when the user selects he's or her's device phone language. All texts are localized, and language directions are working.

我也有在应用程序中的一个按钮，改变它的语言而无需重新启动应用程序。
这也伟大工程，所有文本都被替换。

I also have a button inside the app, to change it's language without restarting the app. This also works great, and all texts are being replaced.

问题是，当用户从应用程序内改变的语言，在限制尊重语言方向选项，我有pre定义具有讽刺意味的​​是不尊重。

The problem is that when the user changes the language from within the app, "Respect Language Direction" option in the constraints i have pre-defined is ironically not respected.

任何想法？

推荐答案

最后，我设法解决这个问题。

Eventually, I have managed to solve this issue.

我无法找到一个方法来强制改变RTL - LTR汽车布局限制，所以我决定复制为每种语言方向的2个额外的故事板。
所以，其实我的应用程序现在包含3情节串连图板 - Main.storyboard，StoryboardRTL.storyboard和StoryboardLTR.storyboard

I couldn't find a way to force the change the RTL - LTR auto layout constraints, so i have decided to duplicate 2 additional storyboards for each language direction. So, actually my app now contains 3 storyboards - Main.storyboard, StoryboardRTL.storyboard and StoryboardLTR.storyboard.

当它从设置上的iDevice执行主处理语言方向的变化，和RTL / LTR是有它自己的定位，以支持从应用程序内改变应用程序的语言。

Main handles changes in language direction when it is performed from the settings on the iDevice, and RTL / LTR is has it's own orientation, to support changing the app language from inside the app.

当用户选择更改为一个RTL语言，我设置所选择的语言中UserDefaults：

When the user selects to change to an RTL language, I set the selected language in the UserDefaults:

    [[NSUserDefaults standardUserDefaults] setObject:[NSArray arrayWithObjects:@"he", nil] forKey:@"AppleLanguages"];
    [[NSUserDefaults standardUserDefaults] synchronize];

和右后我叫我写在AppDelegate中，根据语言布局，改变了故事板。方法

and right after i call a method i have written in the AppDelegate, which changes the storyboard according to the language layout.

- (void)reloadStoryboard
{
    UIStoryboard *storyboard;

    switch ([AALanguageManager getCurrentLanguage]) {

        case CurrentLanguageRTL:
            storyboard = [UIStoryboard storyboardWithName:@"StoryboardRTL" bundle:[NSBundle mainBundle]];
            break;
        default:
            storyboard = [UIStoryboard storyboardWithName:@"StoryboardLTR" bundle:[NSBundle mainBundle]];
            break;
    }

    self.window.rootViewController = [storyboard instantiateInitialViewController];
    [self.window makeKeyAndVisible];
}

这看起来好像重新启动应用程序的用户，并显示与RTL / LTR布局适当的故事板。
当用户再次重新启动应用程序，选择的语言会根据选择的语言已经设置，并显示在主故事板，所有的布局是否正确。

This looks to the user as if the app restarted, and display the proper storyboard with the RTL / LTR layout. When the user restarts the app again, the selected language is already set, and the main storyboard is displayed, with all the correct layout according to selected language.

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