Change User interface when device change the orientation android -

i have screen, show different user interface when device lanscape , portrait. shows listview when device portrait, , shows gridview when device lanscape. looks youtube app or google play store app.

thanks reading , answering question.

edit: want add more details question:

• i using fragment manage view.
• i need save data , in view when rotate (avoid reloading lot of data).
• i tried add android:configchanges on manifest , use onconfigurationchanged in fragment. not success.

i hope see particular example or detail solution. answer appropriated. thanks

there 2 things develop functionnality.

first have make 2 different layouts:

res |- layout    |- mylayout.xml |- layout-land.xml    |- mylayout.xml 

in layout/mylayout.xml file, include listview need , in layout-land/mylayout.xml, include gridview.

android select automatically correct layout, depending of current screen orientation, when call setcontentview.

@override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.mylayout);     mlistview = (listview) findviewbyid(r.id.mylistview);     mgridview = (gridview) findviewbyid(r.id.mygridview);     // !!!!!!!     // mlistview null in landscape     // mgridview null in portrait     // !!!!!!! }  setcontentview(r.layout.mylayout); 

now, in code need check in orientation make if/else statements.

to detect in orientation are, follow following states:

1. create file in res/values/bool.xml

   <resources>     <bool name="islandscape">false</bool> </resources> 

2. create file in res/values-land/bool.xml

   <resources>    <bool name="islandscape">true</bool> </resources> 

3. now in activity can test, every time need, if in landscape or portrait mode , apply corresponding action

   boolean landscape = getresources().getboolean(r.bool.islandscape); if (landscape) {     // gridview } else {     // listview } 

to respond edit:

fragments similar activities this.

if want save data during orientation change, follow official documentation on topic, part on retaining object during configuration change.

you should not use android:configchangesin manifest explained in documentation:

handling configuration change can make more difficult use alternative resources, because system not automatically apply them you. technique should considered last resort when must avoid restarts due configuration change , not recommended applications.