Android FragmentTransaction: How to generate an overlay slide in and move existing Fragement to left -


i'm trying following. create new fragement b (menu), slide in right, , want move (no hide or replace!) shown fragment left. enter image description here

i got transaction fragment b right, fragment doesn't change position @ all. seems like, fragmentmanager doesn't know fragment exists (fragment not added dynamically, it's defined in xml).

  • main_screen_layout-xml

    <relativelayout //...     android:id="@+id/main_screen"     tools:context=".mainactivity"     <fragment     android:id="@+id/map_screen"     android:layout_width="fill_parent"     android:layout_height="fill_parent"     class="com.google.android.gms.maps.supportmapfragment" >   </fragment>

  • fragmenttransaction

    fragmentmanager fragmentmanager = getsupportfragmentmanager(); fragmenttransaction ft = fragmentmanager.begintransaction();             ft.add(r.id.main_screen, new menufragment(), menu_fragment); //adding fragment b ft.setcustomanimations(r.anim.slide_in_right, r.anim.slide_out_left_cut);        ft.addtobackstack(null); ft.commit();

fragment exists in fragementmanager , can hide it, that's not goal

fragment fragmenta = fragmentmanager.findfragmentbyid(r.id.map_screen); ft.hide(fragmenta); //hide fragmenta

what doing wrong?

some notes:

  • i'm using support libaries (android.support.v4.app.fragmentmanager..), testing on api 17
  • as mentioned before, didn't declare fragmenta fragmentmanager (tried so, says fragment exists)
  • fragment (as can see in xml) google map class supportmapfragment
  • the animation xml working, that's why didn't post

i'm not sure if looking for, check out sliding menu library... allows 1 slide in fragment left or right while shifting center content fragment.


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