Android app in language environment switch

The logic is simple:

1 All activity within the app inherits from Baseactivity or baseactivity derived subclasses, and Baseactivity maintains a static app activity access stack that performs both stack and stack operations when created and destroyed. So Mlocalstack is the activity that is running in the app.

2 Store the app's locale in sharedpreferences, avoid changes to the state when the app restarts, remove the locale string when baseactivity is created, and initialize the activity locale (Initlang method).

3 in the page switch language, call Baseactivity's Switchlang method, finish all currently running activity, and jump to the app main page.

public abstract class baseactivity extends activity {    //  activity Access Stack     private static stack<baseactivity> mlocalstack  = new Stack<BaseActivity> ();    protected baseactivity              mcontext;    @ Override    protected void oncreate (bundle savedinstancestate)  {         super.oncreate (savedinstancestate);         mContext = this;        //  Press Stack          mlocalstack.add (This);         initlang ();    }     @Override     protected  void ondestroy () &nbsP {        //           Mlocalstack.remove (this);         super.ondestroy ();     }    private void initlang ()  {         resources res = getresources ();         Configuration config = res.getconfiguration ();         Locale locale = locale.getdefault ();         string  langStr =  "";        //todo  Gets the app locale stored in sharedpreferences         if ("zh". Equals (LANGSTR)) {             locale = Locale.CHINA;         }else if ("en". Equals (Langstr)) {            locale =   Locale.ENGLISH;        }else if{             //.....        }         config.locale = locale;         res.updateconfiguration (Config, res.getdisplaymetrics ());     }        protected void switchlang (String newLang) {         //TODO  update the app locales stored in sharedpreferences                  // finish  All activity        while  in App memory (0 != mlocalstack.size () )  {    &nbsP;       mlocalstack.pop (). Finish ();         }                / /  Jump to App home         startactivity (Mainactivity.class);     }        public void startactivity (Class<? &NBSP;EXTENDS&NBSP;BASEACTIVITY&GT;&NBSP;CLS)  {         StartActivity (New intent (THIS,&NBSP;CLS));     }}

Android app in language environment switch