Android Open Source - Android102 Person List Fragment

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License

The source code is released under:

MIT License

Java Source Code

package com.myfamily;
//from  w  w  w  . j  a  v  a 2 s .  c  o  m
import android.app.Activity;
import android.content.Intent;
import android.database.Cursor;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.support.v4.app.ListFragment;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.Toast;

import com.myfamily.db.FamilyDb;
import com.myfamily.db.FamilyMember;
import com.myfamily.dummy.DummyContent;

public class PersonListFragment extends ListFragment {

   private static final String STATE_ACTIVATED_POSITION = "activated_position";

   private static final int PICK_CONTACT = 1;

   private Callbacks mCallbacks = sDummyCallbacks;
   private int mActivatedPosition = ListView.INVALID_POSITION;

   public interface Callbacks {

      public void onItemSelected(String id);
   }

   private static Callbacks sDummyCallbacks = new Callbacks() {
      @Override
      public void onItemSelected(String id) {
      }
   };

   public PersonListFragment() {
   }

   @Override
   public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      updateList();
   }

   private void updateList() {
      setListAdapter(new ArrayAdapter<FamilyMember>(getActivity(), android.R.layout.simple_list_item_activated_1,
               android.R.id.text1, new FamilyDb(getActivity()).getFamilyMembers()));
   }

   @Override
   public void onViewCreated(View view, Bundle savedInstanceState) {
      super.onViewCreated(view, savedInstanceState);
      if (savedInstanceState != null && savedInstanceState.containsKey(STATE_ACTIVATED_POSITION)) {
         setActivatedPosition(savedInstanceState.getInt(STATE_ACTIVATED_POSITION));
      }
   }

   @Override
   public void onAttach(Activity activity) {
      super.onAttach(activity);
      if (!(activity instanceof Callbacks)) { throw new IllegalStateException("Activity must implement fragment's callbacks."); }

      mCallbacks = (Callbacks) activity;
      setHasOptionsMenu(true);
   }

   @Override
   public void onDetach() {
      super.onDetach();
      mCallbacks = sDummyCallbacks;
   }

   @Override
   public void onListItemClick(ListView listView, View view, int position, long id) {
      super.onListItemClick(listView, view, position, id);
      mCallbacks.onItemSelected(DummyContent.ITEMS.get(position).id);
   }

   @Override
   public void onSaveInstanceState(Bundle outState) {
      super.onSaveInstanceState(outState);
      if (mActivatedPosition != ListView.INVALID_POSITION) {
         outState.putInt(STATE_ACTIVATED_POSITION, mActivatedPosition);
      }
   }

   public void setActivateOnItemClick(boolean activateOnItemClick) {
      getListView().setChoiceMode(activateOnItemClick ? ListView.CHOICE_MODE_SINGLE : ListView.CHOICE_MODE_NONE);
   }

   public void setActivatedPosition(int position) {
      if (position == ListView.INVALID_POSITION) {
         getListView().setItemChecked(mActivatedPosition, false);
      } else {
         getListView().setItemChecked(position, true);
      }

      mActivatedPosition = position;
   }

   @Override
   public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
      inflater.inflate(R.menu.person_list, menu);
      super.onCreateOptionsMenu(menu, inflater);
   }
   
   @Override 
   public boolean onOptionsItemSelected(MenuItem item) {
      switch (item.getItemId()) {
         case R.id.menu_add:
            Intent intent = new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI);
            startActivityForResult(intent, PICK_CONTACT);
            return true;
      }
      return super.onOptionsItemSelected(item);
   }

   @Override
   public void onActivityResult(int requestCode, int resultCode, Intent data) {
      if (requestCode == PICK_CONTACT && resultCode == Activity.RESULT_OK) {
         Cursor c = getActivity().managedQuery(data.getData(), null, null, null, null);
         c.moveToNext();
         String name = c.getString(c.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
         long contactId = c.getLong(c.getColumnIndex(ContactsContract.Contacts._ID));
         new FamilyDb(getActivity()).addFamilyMember(name, contactId);
         Toast.makeText(getActivity(), "Added family member: " + name, Toast.LENGTH_LONG).show();
         updateList();
         return;
      }
      
      super.onActivityResult(requestCode, resultCode, data);
   }

}

Java Source Code List

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