android - How do I save a textView -

how save textview when close , relaunch activity text still there?

protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);      setcontentview(r.layout.activity_current_homework);      intent intent = getintent();     string message = intent.getstringextra(addnewhomework.extra_message);     textview textview = (textview) findviewbyid(r.id.textview99);     textview.settext(message); 

save text textview.gettext() using sharedpreference or other in ondestroy.then read in oncreate.

@override public void oncreate(bundle savedinstancestate, persistablebundle persistentstate) {     super.oncreate(savedinstancestate, persistentstate);     setcontentview(r.layout.main);     //todo initialization     sharedpreferences preferences = getapplicationcontext()//             .getsharedpreferences("file_name", context.mode_private);     mtextview.settext(preferences.getstring("key_name","")); }  @override protected void ondestroy() {     super.ondestroy();     final string text = mtextview.gettext();     final sharedpreferences.editor editor = getapplicationcontext()//             .getsharedpreferences("file_name", context.mode_private)//             .edit();//     editor.putstring("key_name", text).commit(); }