CODEWITHSUNDEEP
androidlocalization
vladimir
vladimir

Reputation: 733

Android: changing activity language

I have a problem with changing all text in one activity of my application... i am using this code to change language:

else if (LANGUAGE.equals("Russian"))
        {
            Resources res = this.getResources();
            // Change locale settings in the app.
            DisplayMetrics dm = res.getDisplayMetrics();
            android.content.res.Configuration conf = res.getConfiguration();
            conf.locale = new Locale("ru-rRU");
            res.updateConfiguration(conf, dm);
}

in AndroidManifest i have added this string:

<activity
        android:name="com.vladimir.expert_suise.ThirdScreen"
        android:label="@string/title_activity_third_screen" 
        android:configChanges="locale">
    </activity>

and when i launch my app on my phone, language is not changed =( here is screenshoot - screen where i need to change language

so what is wrong with my code?(

P.S i have also created values-ru-rRU folder and inserted there translated string.xml file

Upvotes: 2

Views: 3238

Answers (2)

Shahbaz Hashmi
Shahbaz Hashmi

Reputation: 2815

To set language of one activity only irrespective of Application language (locale), below code can be used

public override fun attachBaseContext(context: Context) {
    // pass desired language
    super.attachBaseContext(LocaleHelper.onAttach(context, "hi"));
}

LocaleHelper.java

public class LocaleHelper {

public static Context onAttach(Context context, String defaultLanguage) {
    return setLocale(context, defaultLanguage);
}

public static Context setLocale(Context context, String language) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
        return updateResources(context, language);
    }

    return updateResourcesLegacy(context, language);
}

@TargetApi(Build.VERSION_CODES.N)
private static Context updateResources(Context context, String language) {
    Locale locale = new Locale(language);
    Locale.setDefault(locale);

    Configuration configuration = context.getResources().getConfiguration();
    configuration.setLocale(locale);

    return context.createConfigurationContext(configuration);
}

@SuppressWarnings("deprecation")
private static Context updateResourcesLegacy(Context context, String language) {
    Locale locale = new Locale(language);
    Locale.setDefault(locale);

    Resources resources = context.getResources();

    Configuration configuration = resources.getConfiguration();
    configuration.locale = locale;

    resources.updateConfiguration(configuration, resources.getDisplayMetrics());

    return context;
}

}

Upvotes: 2

AwadKab
AwadKab

Reputation: 3064

First, change values-ru-rRU to values-ru.

You can use this method to get resource

public Resources getCustomResource(String lang){
        Locale locale = new Locale(lang); 
        Resources standardResources = activity.getResources();
        AssetManager assets = standardResources.getAssets();
        DisplayMetrics metrics = standardResources.getDisplayMetrics();
        Configuration config = new Configuration(standardResources.getConfiguration());
        config.locale = locale;
        Resources res = new Resources(assets, metrics, config);
        return res;
    }

You can use it in your code like this

else if (LANGUAGE.equals("Russian"))
    {
        Resources res = getCustomResource("ru");

}

hope this help you.

Upvotes: 1

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