I have an Activity say ActivityMain
from this activity I moved to another activity called ActivitySettings
and in settings activity I'm changing the App locale by clicking on a button, and using recreate I achieved the change I need in current activity but when I press back my `ActivityMain' will resume but locale is not updated.
Can some one tell me how to 'Recreate' backstack activities? what will be the correct approach.
I can't call recreate on refresh as it will be infinite loop
In each Activity's onCreate()
you can maintain the currentLangCode
. Check this value in onResume()
, if it differs, you can conclude the locale was change and recreate()
You can do it as follows:
public class ActivityA extends AppCompatActivity{
private String currentLangCode;
@Override
protected void onCreate(Bundle savedInstanceState) {
...
currentLangCode = getResources().getConfiguration().locale.getLanguage();
...
}
@Override
public void onResume(){
...
if(!currentLangCode.equals(getResources().getConfiguration().locale.getLanguage())){
currentLangCode = getResources().getConfiguration().locale.getLanguage();
recreate();
}
}
...
}
If you want to apply it for all the Activities, then simply create BaseActivity as follows:
public class BaseActivity extends AppCompatActivity{
private String currentLangCode;
@Override
protected void onCreate(Bundle savedInstanceState) {
...
currentLangCode = getResources().getConfiguration().locale.getLanguage();
...
}
@Override
public void onResume(){
...
if(!currentLangCode.equals(getResources().getConfiguration().locale.getLanguage();)){
currentLangCode = getResources().getConfiguration().locale.getLanguage();
recreate();
}
}
...
}
Extend all Activities from BaseActivity
public class ActivityA extends BaseActivity{
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
...
}
@Override
public void onResume(){
super.onResume();
}
...
}