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  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; &nbsP;   }&NBSP,  //-----------------------------------------------Method III     Viewtreeobserver Vto2 = Imageview.getviewtreeobserver ();   vto2.addongloballayoutlistener (New Ongloballayoutlistener () {      @Override       public void Ongloballayout () {          imageview.getviewtreeobserver (). Removeglobalonlayoutlistener (this);           textview.append ("\ n" +imageView.getHeight () + "," + Imageview.getwidth ());      }   });

Android obtains control dimensions in OnCreate ()