在 Android 偏好设置中设置应用程序语言 [英] Set-up the application Language in Android Preferences

问题描述

我希望根据用户偏好设置应用程序语言，但到目前为止它还不能按照我的意愿工作.

I would like the application language to be set according to the user preferences but up till now it doesn't work how I would like it to.

我已经设置了默认值:strings.xml 和 values-es，其中包含西班牙语的 strings.xml.我有一个菜单选项，可将用户带到偏好活动，他可以在其中选择语言.

I have set the default values: strings.xml and also values-es with a strings.xml inside in spanish. I have a menu option which brings the user to a Preference activity where he can amon gother things chose the language.

所以这里是一些代码的摘录:

So here are some extracts of the code:

public class Preference extends PreferenceActivity implements
        OnSharedPreferenceChangeListener {
......
// Set up a listener whenever a key changes 
        getPreferenceScreen().getSharedPreferences()
                .registerOnSharedPreferenceChangeListener(this);


...}
//(......)

//and here I have the listener so when the language pref changes value the locale gets changed.
    @Override
    public void onSharedPreferenceChanged(SharedPreferences sharedPreferences,
            String key) {
        if (key.equals("listPref2")) {
            String idioma = sharedPreferences.getString("listPref2", "catala");
            if ("castella".equals(idioma)) {
                idioma = "es_ES";

                Locale locale = new Locale(idioma);
                Locale.setDefault(locale);
                Configuration config = new Configuration();
                config.locale = locale;
                getApplicationContext().getResources().updateConfiguration(config,
                        getBaseContext().getResources().getDisplayMetrics());
            }
        }
    }

因此，当我更改语言时，它可以工作，但是当我稍后回来或重新启动模拟器时，语言会恢复为默认语言环境 en_US，并且应用程序语言会再次更改回默认值.我能做些什么来解决这个问题?

So when I change the language it works but then when I come back later or restart the emulator the language gets back to default locale the en_US and the app language gets changed back to default again. What can I do to sort that out?

我知道我可以得到这个偏好(我可以从我的所有活动中访问它)，然后每次设置语言环境，但我发现它有点重，没有办法在更 优雅的方式?

I know I can get this preference (which I can access to from all my activities) and then each time set up the locale but I find it a bit heavy isn't there a way to do it in a more elegant way?

我想做的是，如果用户设置了语言，那么当他 2 天后回来时，他不必再次更改语言.

What I would like to do is if the user sets up the language so when he comes back 2 days later he doesn't have to change the language again.

有什么想法吗?

推荐答案

好的，它可能对某人有所帮助.我已将以下内容添加到主要活动清单中:

OK it may help someone. I have added the folowing to the main activity manifest:

android:configChanges="locale"

然后，当用户选择首选项时，我放置了一个确认按钮，然后此按钮将您带到主要活动，这就是重置 lnagages 的原因.

Then when the user choses the preferences I have put a confirm button and then this button brings you to main activity that is why the lnagages gets reset.

我有一个静态类，我有这个代码来更改语言环境:

I have a static class where I have this code to change the locale:

public static void updateLanguage(Context context, String idioma) {
    if (!"".equals(idioma)) {
        if ("castella".equals(idioma)) {
            idioma = "es_ES";
        } else if ("catala".equals(idioma)) {
            idioma = "ca_ES";
        }
        Locale locale = new Locale(idioma);
        Locale.setDefault(locale);
        Configuration config = new Configuration();
        config.locale = locale;
        context.getResources().updateConfiguration(config, null);
    }
}

在我喜欢的 20 个活动中结束我之前调用此方法:

end at every activity I have like 20 of them I call this method before:

setContentView(R.layout.list_event);

使用这些方法，当我旋转屏幕时，活动不会改变语言这是一个帮助我的博客的链接:http://adrianvintu.com/blogengine/post/Force-Locale-on-Android.aspx

With these methods when I rotate the screen the activities don't change the language here is a link to a blog that helped me: http://adrianvintu.com/blogengine/post/Force-Locale-on-Android.aspx

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