android - Backstack Fragment not appearing in front on Back button prerssed -

i have gone through many stackoverflow question before writing this. confused guy backstack in fragment.

i have added 3 fragment on same container inside activity

fragment 1 :

private void addlandingfragment() {         landingpagefragment = landingpagefragment.newinstance();         fragmenttransaction transaction = manager.begintransaction();         transaction.add( r.id.container, landingpagefragment, landing_page_fragment_tag );         transaction.commit();      } 

fragment 2 :

public void addintrofragment() {     fragment2 = introfragment.newinstance();     fragmenttransaction transaction = manager.begintransaction();     transaction.replace( r.id.container, fragment2, intro_page_fragment_tag);     transaction.addtobackstack(fragment2.getclass().getname() );     transaction.commit(); } 

fragment 3 :

public void ongetstartedclicked() {         fragment3= connectfragment.newinstance();         fragmenttransaction transaction = manager.begintransaction();         transaction.replace( r.id.container, fragment3,connect_page_fragment_tag );         transaction.commit();     } 

now want when user presses button on fragment 3 should come on first fragment have overrided onbackpressed() method.

@override     public void onbackpressed() {         manager.popbackstack(fragment2.getclass().getname() ,fragmentmanager.pop_back_stack_inclusive );      } 

but nothing happening on screen keeps fragment 3 running.

update

when navigating

fragment1 > fragment2

and presses button on fragment2, coming fragment1 if move

fragment1 > fragment2> fragment3

i getting stack entry count 1 on onbackpressed() method on device screen still shows fragment3. pressing button again exit me app fragment1 wont come on screen. puzzling why happening ?

any solution achieve this.

calling replace() remove previous fragment, fragment 1 should called using replace(), , fragment 2 & 3 should called using add(), should add last transaction stack (calling fragment 3)

like this:

fragment 1:

private void addlandingfragment() {     landingpagefragment = landingpagefragment.newinstance();     fragmenttransaction transaction = manager.begintransaction();     transaction.replace( r.id.container, landingpagefragment, landing_page_fragment_tag );     transaction.commit();  } 

fragment 2:

public void addintrofragment() { fragment2 = introfragment.newinstance(); fragmenttransaction transaction = manager.begintransaction(); transaction .hide(landingpagefragment.this); transaction.add( r.id.container, fragment2, intro_page_fragment_tag); transaction.addtobackstack(fragment2.getclass().getname() ); transaction.commit(); 

}

fragment 3:

public void ongetstartedclicked() {     fragment3= connectfragment.newinstance();     fragmenttransaction transaction = manager.begintransaction();     fragmentmanager.popbackstackimmediate();     // remove fragment 2         transaction.add( r.id.container, fragment3,connect_page_fragment_tag );     transaction.addtobackstack(fragment3.getclass().getname() );     transaction.commit(); } 

finally onbackpressed should this:

@override public void onbackpressed() {     fragmentmanager.popbackstackimmediate();     fragmenttransaction.show(landingpagefragment.this); } 

therefore onbackpressed pop top fragment on stack (fragment 3), , since fragment 2 popped before adding fragment 3, onbackpressed display first fragment.