Transaction of fragments in android results in blank screen -

if helps, want similar done in google tutorial

but there fragment created prior transition. if transition works fine; can't use approach

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aiming api 7+ trying have 1 fragment visible in whole screen , using button (a drawn button, ontouch event) alternate second fragment , viceversa.

but either blank screen when replace first fragment second, or if use fragmenttransaction.show , fragmenttransaction.hide; can switch 2 times before blank screen. dont want have on backstack.

i creating fragments in mainactivity's oncreate:

dicetable dicetable = new dicetable(); logger logger = new logger(); fragmenttransaction.add(dicetable, dicetable_tag); fragmenttransaction.add(logger, logger_tag); fragmenttransaction.add(r.id.fragment_container, logger); fragmenttransaction.add(r.id.fragment_container, dicetable); 

then on 1 method (called fragments) switch:

    logger logger = (logger)fragmentmanager.findfragmentbytag(logger_tag);     dicetable dicetable = (dicetable)fragmentmanager.findfragmentbytag(dicetable_tag);      if (dicetable.isvisible()) {         fragmenttransaction.replace(r.id.fragment_container, logger);          fragmenttransaction.commit();         fragmenttransaction.hide(dicetable);         fragmenttransaction.show(logger);     }     else if (logger.isvisible()) {         fragmenttransaction.replace(r.id.fragment_container, dicetable);          fragmenttransaction.commit();         fragmenttransaction.hide(logger);         fragmenttransaction.show(dicetable);     } 

this not how should this?

blank screen when replacing fragments

try initialize fragments in way:

private void initfragments() {     mdicetable = new dicetable();     mlogger = new logger();     isdicetablevisible = true;      fragmentmanager fm = getsupportfragmentmanager();     fragmenttransaction ft = fm.begintransaction();     ft.add(r.id.fragment_container, mdicetable);     ft.add(r.id.fragment_container, mlogger);     ft.hide(mlogger);     ft.commit(); } 

and flip between them in way:

 private void flipfragments() {         fragmentmanager fm = getsupportfragmentmanager();         fragmenttransaction ft = fm.begintransaction();         if (isdicetablevisible) {             ft.hide(mdicetable);             ft.show(mlogger);         } else {             ft.hide(mlogger);             ft.show(mdicetable);         }         ft.commit();         isdicetablevisible = !isdicetablevisible;     }