random - Using a Handler in combination with an animation with a ViewFlipper -

hello dear programmers!

i trying make animated menu application flips randomly @ random time intervals between 5 viewflipper children. in between each flip, want "insert" animation based on frame frame drawables. far, able display either random flipping or animation based on whether call animation method @ beginning of "run" method or @ end. can't figure out how make sure executed "in between" each iteration of handler.

here code:

public class btg extends activity {  private viewflipper fliptest; private handler testhandler = new handler(); private random mrand = new random(); private random timermenu = new random(); int randomtime; animationdrawable menuanimation;  @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_btg);      fliptest = (viewflipper) findviewbyid(r.id.menuflipper);     testhandler.postdelayed(mflip, randomtime);   }  private runnable mflip = new runnable() {      @override     public void run() {         //if call @ beginning, menu flips between 5 first          //children of viewflipper , animation never shown         startanimation();          randomtime  = (timermenu.nextint(6) + 1) * 2000;         system.out.println("executes run method " + randomtime);         fliptest.setdisplayedchild(mrand.nextint(5));         testhandler.postdelayed(this, (mrand.nextint(6)+ 1) * 2000);         //if call @ end, menu displays animation          //which launches after random time set in handler         //startanimation();       }      class starter implements runnable {           public void run() {               menuanimation.start();            }        }      private void startanimation() {         system.out.println("the start animation method run");         fliptest.setdisplayedchild(5);         menuanimation = new animationdrawable();         menuanimation.addframe(getresources().getdrawable(r.drawable.animate_menu_trans1), 100);         menuanimation.addframe(getresources().getdrawable(r.drawable.animate_menu_trans2), 100);         menuanimation.addframe(getresources().getdrawable(r.drawable.animate_menu_trans3), 100);         menuanimation.addframe(getresources().getdrawable(r.drawable.animate_menu_trans1), 100);         menuanimation.addframe(getresources().getdrawable(r.drawable.animate_menu_trans2), 100);         menuanimation.addframe(getresources().getdrawable(r.drawable.animate_menu_trans3), 100);         menuanimation.setoneshot(true);             imageview imageview = (imageview) findviewbyid(r.id.menu_animation);            imageview.setimagedrawable(menuanimation);            imageview.post(new starter());      }     }; 

ok, after playing around , spending hours on stackoverflow, found workable solution problem. here final code. please feel free propose "better" programming alternative newbie fix!

public class btg extends activity {  private viewflipper fliptest; private handler menuhandler = new handler(); private random mrand = new random(); private random timermenu = new random(); int randomtime; animationdrawable menuanimation;  @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_btg);     fliptest = (viewflipper) findviewbyid(r.id.menuflipper);     menuhandler.postdelayed(mflip, randomtime); }   private runnable mflip = new runnable() {          @override         public void run() {          randomtime  = (timermenu.nextint(6) + 1) * 2000;             system.out.println("executes run method " + randomtime);             menuhandler.postdelayed(this, randomtime);             startanimation();         } };   class starter implements runnable {       public void run() {            menuanimation.start();       } }      private void startanimation() {               system.out.println("the start animation method run");          fliptest.setdisplayedchild(5);         menuanimation = new animationdrawable();         menuanimation.addframe(getresources().getdrawable(r.drawable.animate_menu_trans1), 100);         menuanimation.addframe(getresources().getdrawable(r.drawable.animate_menu_trans2), 100);         menuanimation.addframe(getresources().getdrawable(r.drawable.animate_menu_trans3), 100);         menuanimation.addframe(getresources().getdrawable(r.drawable.animate_menu_trans1), 100);         menuanimation.addframe(getresources().getdrawable(r.drawable.animate_menu_trans2), 100);         menuanimation.addframe(getresources().getdrawable(r.drawable.animate_menu_trans3), 100);         menuanimation.setoneshot(true);          imageview imageview = (imageview) findviewbyid(r.id.menu_animation);         imageview.setimagedrawable(menuanimation);         imageview.post(new starter());          thread timer = new thread(){             public void run (){                 try{                     sleep(700);                 }catch (interruptedexception e){                         e.printstacktrace();                 }finally{                     system.out.println("the thread sleep works");                     runonuithread(new runnable() {                         @override                         public void run() {                            fliptest.setdisplayedchild(mrand.nextint(5));                         }                      });                 }             }          };         timer.start();     }       @override public boolean oncreateoptionsmenu(menu menu) {     // inflate menu; adds items action bar if present.     getmenuinflater().inflate(r.menu.beat_the_game, menu);     return true; } 

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