android - how to remove and add a button from the screen without affecting other buttons? -

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i'm dynamically creating buttons , place them randomly on screen. want remove button when it's being clicked , create one, when that, other buttons (the ones bellow him percise) change position (moving 1 row). how can modify code other buttons wont change position when click button? want add new button in same row of 1 removed. i'm using linear layout, when add button adds bottom , fill blank row pushing rows.

in following code remove button after few seconds:

private void creategreenbutton() {     random r = new random();     int hidedelay = r.nextint(1000) + 1000;     final button greenbutton = new button(this);     greenbutton.settext("button");     greenbutton.setonclicklistener(greenbuttonclick(greenbutton));     layout.addview(greenbutton, new linearlayout.layoutparams(             linearlayout.layoutparams.wrap_content,             linearlayout.layoutparams.wrap_content));      // place buttons randomly on screen     layout.getviewtreeobserver().addongloballayoutlistener(             new ongloballayoutlistener() {                 @suppresslint("newapi")                 @override                 public void ongloballayout() {                     random r = new random();                      layout.getviewtreeobserver()                             .removeongloballayoutlistener(this);                      linearlayout.layoutparams layoutparams = (layoutparams) greenbutton                             .getlayoutparams();                     int horizontalmargin = r.nextint(screen_width                             - greenbutton.getwidth());                     layoutparams.setmargins(horizontalmargin, 50, 0, 0);                     greenbutton.setbackgroundcolor(color.green);                     greenbutton.setlayoutparams(layoutparams);                 }             });     layout.requestlayout();      mhandler.postdelayed(new runnable() {         public void run() {             ((viewmanager) greenbutton.getparent()).removeview(greenbutton);             creategreenbutton();         }     }, hidedelay); }


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