Create listview in fragment android

Question

As the title I want to create a listview with custom row in Fragment  My code below   Fragment class  public class PhotosFragment extends Fragment   public PhotosFragment       Override public View onCreateView LayoutInflater inflater  ViewGroup container          Bundle savedInstanceState         View rootView   inflater inflate R layout fragment photos  container  false        ArrayList lt ListviewContactItem gt  listContact   GetlistContact        ListView lv    ListView getActivity   findViewById R id lv contact       lv setAdapter new ListviewContactAdapter getActivity    listContact         return rootView     private ArrayList lt ListviewContactItem gt  GetlistContact        ArrayList lt ListviewContactItem gt  contactlist   new ArrayList lt ListviewContactItem gt          ListviewContactItem contact   new ListviewContactItem         contact SetName  Topher        contact SetPhone  01213113568        contactlist add contact        contact   new ListviewContactItem        contact SetName  Jean        contact SetPhone  01213869102        contactlist add contact        contact   new ListviewContactItem        contact SetName  Andrew        contact SetPhone  01213123985        contactlist add contact        return contactlist                Adapter class  public class ListviewContactAdapter extends BaseAdapter  private static ArrayList lt ListviewContactItem gt  listContact   private LayoutInflater mInflater   public ListviewContactAdapter Context photosFragment  ArrayList lt ListviewContactItem gt  results       listContact   results      mInflater   LayoutInflater from photosFragment       Override public int getCount            TODO Auto-generated method stub     return listContact size        Override public Object getItem int arg0           TODO Auto-generated method stub     return listContact get arg0       Override public long getItemId int arg0           TODO Auto-generated method stub     return arg0      public View getView int position  View convertView  ViewGroup parent           TODO Auto-generated method stub     ViewHolder holder      if convertView    null           convertView   mInflater inflate R layout contact item  null           holder   new ViewHolder            holder txtname    TextView  convertView findViewById R id lv contact item name                     holder txtphone    TextView  convertView findViewById R id lv contact item phone            convertView setTag holder         else           holder    ViewHolder  convertView getTag               holder txtname setText listContact get position  GetName         holder txtphone setText listContact get position  GetPhone          return convertView     static class ViewHolder      TextView txtname  txtphone        But when I run the app that display no thing  Could anyone tell me what wrong here and how can I fix it

User · Answer

Please use ListFragment  Otherwise  it won t work   EDIT 1  Then you ll only need setListAdapter   and getListView

User · Answer

you need to give   public void onActivityCreated Bundle savedInstanceState          super onActivityCreated savedInstanceState       inside fragment

User · Answer

I guess your app crashes because of NullPointerException   Change this  ListView lv    ListView getActivity   findViewById R id lv contact     to  ListView lv    ListView rootView findViewById R id lv contact     assuming listview belongs to the fragment layout   The rest of the code looks alright  Edit   Well since you said it is not working i tried it myself

User · Answer

The inflate   method takes three parameters    The id of a layout XML file  inside R layout   A parent ViewGroup into which the fragment s View is to be inserted  A third boolean telling whether the fragment s View as inflated from the layout XML file should be inserted into the parent ViewGroup       In this case we pass false because the View will be attached to the   parent ViewGroup elsewhere  by some of the Android code we call  in   other words  behind our backs   When you pass false as last parameter   to inflate    the parent ViewGroup is still used for layout   calculations of the inflated View  so you cannot pass null as parent   ViewGroup      View rootView   inflater inflate R layout fragment photos  container  false     So  You need to call rootView in here   ListView lv    ListView rootView findViewById R id lv contact

User · Answer

Instead   public class PhotosFragment extends Fragment   You can use   public class PhotosFragment extends ListFragment   It change the methods       Override     public void onActivityCreated Bundle savedInstanceState            super onActivityCreated savedInstanceState           ArrayList lt ListviewContactItem gt  listContact   GetlistContact            setAdapter new ListviewContactAdapter getActivity    listContact            onActivityCreated is void and you didn t need to return a view like in onCreateView  You can see an example here

[android] Create listview in fragment android

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