Language not changing in android application

Question

I am new to android app development. I am working on app where language can be changed. Example: English to Hindi or Kannada. Language change working fine on emulator. But when I am changing language on android phone its not changing unless I change languages from Settings to that particular language.

I wanted to dynamically change language in app itself instead of going to settings. Is this possible or we have to go by above way only?

P.S. Android phone has 7.0 Nougat

Any help would be much appreciated. Thanks.

This is what I have wrote.

    private void setLocale(String lang){
    Locale locale=new Locale(lang);
    locale.setDefault(locale);
    Resources resources = getResources();
    Configuration configuration = resources.getConfiguration();
    DisplayMetrics displayMetrics = resources.getDisplayMetrics();
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1){
        configuration.setLocale(locale);
    } else{
        configuration.locale=locale;
    }
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N){
        getApplicationContext().createConfigurationContext(configuration);
    } else {
        resources.updateConfiguration(configuration,displayMetrics);
    }
    //save data to sharedPreferences
    SharedPreferences.Editor editor=getSharedPreferences("Settings",MODE_PRIVATE).edit();
    editor.putString("My_Lang",lang);
    editor.apply();
}

    public void showChangeLanguageDialog()
{
    final String[] listItems={"हिंदी","ಕನ್ನಡ","मराठी","தமிழ்","اردو","English"};

    AlertDialog.Builder mBuilder=new AlertDialog.Builder(MainActivity.this);
    mBuilder.setTitle("Change Language..");
    mBuilder.setSingleChoiceItems(listItems, -1, new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            switch (which)
            {
                case 0: //Hindi
                    setLocale("hi");
                    recreate();
                    break;
                case 1://Kannda
                    setLocale("kn");
                    recreate();
                    break;
                case 2://English
                    setLocale("en");
                    recreate();
                    break;
            }
            //dismiss dialog when language selected
            dialog.dismiss();
        }
    });

    AlertDialog mDialog=mBuilder.create();
    //show create dialog
    mDialog.show();
}
//showChangeLanguageDialog is called on button click

Possible duplicate of How to change language of app when user selects language? — Santanu Sur
– Santanu Sur, Commented Apr 28, 2018 at 10:49

MJM · Accepted Answer · 2018-04-28 10:57:25Z

1

Set the local language in your BaseActivity in attachBaseContext

    public class BaseActivity extends AppCompatActivity {

             @Override
                protected void attachBaseContext(Context newBase) {
                    String lngCode=PreferenceManager.
getDefaultSharedPreferences(context).getString(CURRENT_LANGUAGE_CODE, Locale.getDefault().getLanguage())
                    Locale newLocale = new Locale(lngCode);

                    Context context = ContextWrapperLanguage.wrap(newBase, newLocale);
                    super.attachBaseContext(context);
                }
            }

Set language in Preferences like en,ar,it

and when you change the language don't forgot to restart the application.

answered Apr 28, 2018 at 10:57

MJM

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5 Comments

Darshan Adakane Over a year ago

I am using all this. As I said, Its working well in android emulator. I am looking out for problem as describe in question.

MJM Over a year ago

who to identify which the language you want to set?

MJM Over a year ago

in above example i have used default language as Locale.getDefault().getLanguage() so it define default language from device,if you not change any language in preferance

MJM Over a year ago

from where you have called setLocale method?

sud007 Over a year ago

This answer has blatantly been copied from here. Without explanation funny! Original one here stackoverflow.com/a/40849142/1149398

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