Android gets control size in OnCreate ()

@Override    public void oncreate (bundle savedinstancestate)  {        super.oncreate (savedinstancestate);        Setcontentview (r.layout.main);        final imageview imageview  =  (ImageView)  findviewbyid (R.id.imageview);              int w = view.measurespec.makemeasurespec (0, View.MeasureSpec.UNSPECIFIED);       int h =  View.MeasureSpec.makeMeasureSpec (0,view.measurespec.unspecified);        Imageview.measure (w, h);        int height = Imageview.getmeasuredheight ();       int width = Imageview.getmeasuredwidth ();       textview.append ("\ n" +height+ "," +width);       system.out.println ("Execution completed ..." +system.currenttimemillis ());    }

------------------------------------------------Method One

int w = View.MeasureSpec.makeMeasureSpec (0,view.measurespec.unspecified); int h = View.MeasureSpec.makeMeasureSpec (0,view.measurespec.unspecified); Imageview.measure (W, h); int height =imageview.getmeasuredheight (); int width =imageview.getmeasuredwidth (); Textview.append ("\ n" +height+ "," +width);

-----------------------------------------------method Two (pro-Test available!) Called in the OnStart () method)

Viewtreeobserver vto = Imageview.getviewtreeobserver (); Vto.addonpredrawlistener (New Viewtreeobserver.onpredrawlistener () {public Boolean onpredraw () {int height =         Imageview.getmeasuredheight ();         int width = imageview.getmeasuredwidth ();         Textview.append ("\ n" +height+ "," +width);     return true; } });

-----------------------------------------------Method Three

Viewtreeobserver Vto2 = Imageview.getviewtreeobserver (); Vto2.addongloballayoutlistener (New Ongloballayoutlistener () {@Override public void ongloballayout () {i           Mageview.getviewtreeobserver (). Removeglobalonlayoutlistener (this);     Textview.append ("\ n" +imageview.getheight () + "," +imageview.getwidth ()); }   });