com.pindroid.fragment.BrowseNotesFragment.java Source code

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Here is the source code for com.pindroid.fragment.BrowseNotesFragment.java

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/*
 * PinDroid - http://code.google.com/p/PinDroid/
 *
 * Copyright (C) 2010 Matt Schmidt
 *
 * PinDroid is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published
 * by the Free Software Foundation; either version 3 of the License,
 * or (at your option) any later version.
 *
 * PinDroid is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with PinDroid; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA
 */
package com.pindroid.fragment;

import android.app.Activity;
import android.database.Cursor;
import android.os.Bundle;
import android.support.v4.app.ListFragment;
import android.support.v4.app.LoaderManager;
import android.support.v4.content.Loader;
import android.support.v4.widget.SimpleCursorAdapter;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;

import com.pindroid.R;
import com.pindroid.platform.NoteManager;
import com.pindroid.providers.NoteContent.Note;

public class BrowseNotesFragment extends ListFragment
        implements LoaderManager.LoaderCallbacks<Cursor>, PindroidFragment {

    private String sortfield = Note.Title + " ASC";
    private SimpleCursorAdapter mAdapter;

    private String username = null;
    private String query = null;

    private OnNoteSelectedListener noteSelectedListener;

    public interface OnNoteSelectedListener {
        public void onNoteView(Note n);
    }

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

    @Override
    public void onActivityCreated(Bundle savedInstanceState) {
        super.onActivityCreated(savedInstanceState);

        setHasOptionsMenu(true);

        mAdapter = new SimpleCursorAdapter(this.getActivity(), R.layout.note_view, null,
                new String[] { Note.Title }, new int[] { R.id.note_title }, 0);

        setListAdapter(mAdapter);

        getLoaderManager().initLoader(0, null, this);

        final ListView lv = getListView();
        lv.setTextFilterEnabled(true);
        lv.setFastScrollEnabled(true);

        lv.setItemsCanFocus(false);
        lv.setChoiceMode(ListView.CHOICE_MODE_SINGLE);

        lv.setOnItemClickListener(new OnItemClickListener() {
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                final Cursor c = (Cursor) lv.getItemAtPosition(position);
                Note n = NoteManager.CursorToNote(c);

                viewNote(n);
            }
        });

        getActivity().setTitle(getString(R.string.browse_my_notes_title));
    }

    private void viewNote(Note n) {
        noteSelectedListener.onNoteView(n);
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public void setQuery(String query) {
        this.query = query;
    }

    public void refresh() {
        try {
            getLoaderManager().restartLoader(0, null, this);
        } catch (Exception e) {
        }
    }

    public Loader<Cursor> onCreateLoader(int id, Bundle args) {
        if (username != null && !username.equals("")) {
            if (query != null) {
                return NoteManager.SearchNotes(query, username, this.getActivity());
            } else {
                return NoteManager.GetNotes(username, sortfield, this.getActivity());
            }
        } else
            return null;
    }

    public void onLoadFinished(Loader<Cursor> loader, Cursor data) {
        mAdapter.swapCursor(data);
    }

    public void onLoaderReset(Loader<Cursor> loader) {
        mAdapter.swapCursor(null);
    }

    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);
        try {
            noteSelectedListener = (OnNoteSelectedListener) activity;
        } catch (ClassCastException e) {
            throw new ClassCastException(activity.toString() + " must implement OnNoteSelectedListener");
        }
    }
}