屏幕旋转后，我的应用程序的语言将被更改 [英] After the screen rotation, the language of my application will be changed

问题描述

我创建了一个双语(具有两种语言)的android应用程序.我将资源字符串插入了两个文件:

I have created a bilingual (having two languages) android application. I have inserted my resource strings in two files:

For Persian language (default)
values/strings_locale.xml‬

For English language 
values-en/strings_locale.xml‬

在我的第一个启动活动中，我插入了以下代码:

I my first launching Activity I have inserted the following code:

Configuration c = new Configuration(this.getResources().getConfiguration());
c.locale = new Locale("fa_IR");

this.getResources().updateConfiguration(c, this.getResources().getDisplayMetrics());

因此，在此代码之后，我的默认语言将为波斯语，并且所有活动"中的所有字符串均以波斯语正确显示.

So after this code, my default language will be Persian and all of strings in all of Activities are shown in Persian language correctly.

但是问题是，当旋转设备屏幕时，所有字符串都以英语显示，并且所有其他活动也都发生这种情况！而且我必须关闭并重新打开我的应用程序.

But the problem is when the screen of the device is rotated, all of the strings are shown in English and it also happens for all other Activities! And I have to close and reopen my application.

为什么会发生这种情况以及如何解决此问题?

Why this happens and how I can solve this problem?

推荐答案

您可以创建扩展Application的类.在那里，您可以覆盖每次更改配置时都会调用的一种方法(例如，当屏幕方向更改时).

You can make class which extends Application. There you can override one method which gets called everytime you change configuration (example when screen orientation gets changed).

类似的东西:

public class MyApplication extends Application {
    @Override
    public void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);
        setLocale();
    }

    private void setLocale() {
        Locale locale = new Locale("fa_IR");
        Locale.setDefault(locale);
        Configuration config = new Configuration();
        config.locale = locale;
        getBaseContext().getResources().updateConfiguration(config,
              getBaseContext().getResources().getDisplayMetrics());
    }
}

也不要忘记在清单中声明它: Application类的示例

And dont forget to declare it in the manifest: example of Application class

在AndroidManifest.xml中:

In AndroidManifest.xml:

<application
    android:name="com.blaablaa.bumbam.MyApplication"
    ...

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