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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.

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.

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()); } } }

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?

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?

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.

Any ideas?

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2 Answers 2

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

android:configChanges="locale"

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.

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); } }

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

setContentView(R.layout.list_event);

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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Comments

1

I would think that you need to be setting the locale in the MainActivity onCreate method. The same way you are setting it when the onSharedPreferenceChanged method.

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3 Comments

I have done what you told but this changes the locale only in the main activity. I will just add the same code at the beginning of all my activities then. thanks
I have to admit I never attempted the local thing. Looks like it is a based on a user setting. have you looked at this? developer.android.com/resources/tutorials/localization/…
yes I have already set up a default langage and 2 languages: spanish and catalan and I need the user to be able to chose himself the locale. Determining the locale only with the phone is not enough.

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