Change app language in android 5.0 doesn't work

Question

I'm using this code below to change my app language on button click (changing from french to english for example), it's works fine on android 4.0 + but on 5.0 it doesn't.

Locale localeEn = new Locale("en_US");
Locale.setDefault(localeEn);
Configuration configEn = new Configuration();
configEn.locale = localeEn;
getApplicationContext().getResources().updateConfiguration(configEn, null);
this.recreate();

Any clues why please?

edit : this is my manifest ( with android:configChanges )

<activity
            android:name=".activities.LoginActivity"
            android:configChanges="orientation|locale"
            android:label="@string/app_name"
            android:screenOrientation="portrait"/>

Mockery

You need to use your activity context and not your application context. – Increate

Does this answer your question? Change app language programmatically in Android – Poltroon

Per-app language feature was just added to the latest Android API 33, that is still on Developer preview. See my answer at https://mcmap.net/q/64530/-change-app-language-programmatically-in-android – Poltroon

Answer 1

Try to change from this:

Locale localeEn = new Locale("en_US");
Locale.setDefault(localeEn);

to this

String language = "en";
String country = "US";
Locale locale = new Locale(language , country);

Lection

Answer 2

My solution, that i got from Udhay, works when user changes the language in actionbar and app "refreshes" with selected language. I am using android 6.0.

There is no need to add locale to androidManifest.

@Override
public boolean onOptionsItemSelected(MenuItem item) {

    Locale locale = null;
    switch (item.getItemId()) {
        case R.id.action_en:
            locale = new Locale("en_US");
            Toast.makeText(this, "English", Toast.LENGTH_SHORT).show();
            break;
        case R.id.action_is:
            locale = new Locale("is", "IS");
                    Toast.makeText(this, "Íslanska", Toast.LENGTH_SHORT).show();
            break;

    }

    Resources res = getResources();
    DisplayMetrics dm = res.getDisplayMetrics();
    Configuration conf = res.getConfiguration();
    conf.locale = locale;
    res.updateConfiguration(conf, dm);
    Intent refresh = new Intent(this, MainActivity.class);
    startActivity(refresh);
    finish();
    return true;
}

Grillage

Answer 3

Have you added android:configChanges="locale" in AndroidManifest.xml? I think the problem is in your AndroidManifest.xml file.

You can see example change locale on my github repository.

Azalea

Answer 4

My solution was changing the locale before activity's

setContentView(R.layout.layout_main); 

Pursy