Communicating UI Thread not usings View.post in android? -

Communicating UI Thread not usings View.post in android? -

i have question when comes views can utilize view.post illustration how in adapter adapter.notifydatasetchanged() cant utilize view.post,

example im updating listview more best practice of using codes

madapter = new homepageadapter(this, list); mlistview.setadapter(madapter); madapter.notifydatasetchanged();

which of style best practice:

runonuithread

madapter = new homepageadapter(this, list); homepage.this.runonuithread(new runnable() { @override public void run() { mlistview.setadapter(madapter); madapter.notifydatasetchanged(); } });

asynctask

class updates extends asynctask<void, void, void> { @override protected void doinbackground(void... arg0) { madapter = new homepageadapter(homepage.this, defaultlistval); homecoming null; } @override protected void onpostexecute(void result) { super.onpostexecute(result); mlistview.setadapter(madapter); madapter.notifydatasetchanged(); } }

handler

handler = new handler() { public void handlemessage(message msg) { mlistview.setadapter(madapter); madapter.notifydatasetchanged(); } }; class update implements runnable { @override public void run() { madapter = new homepageadapter(homepage.this, defaultlistval); handler.sendemptymessage(0); } }

each of them have different functionality:

which of style best practice:

runonuithread

use when if on different thread because thread create view can call/update view, if updating on different thread without calling parent thread calledfromwrongthreadexception

asynctask

use when doing network connection, hard work on cpu, etc. block main thread.

handler

same runonuithread phone call main thread, handler called parent thread instantiate it.

android android-activity android-asynctask android-handler