org.xbmc.android.remotesandbox.ui.FilesFragment.java Source code

Java tutorial

Introduction

Here is the source code for org.xbmc.android.remotesandbox.ui.FilesFragment.java

Source

/*
 *      Copyright (C) 2005-2015 Team XBMC
 *      http://xbmc.org
 *
 *  This Program 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 2, or (at your option)
 *  any later version.
 *
 *  This Program 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 XBMC Remote; see the file license.  If not, write to
 *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
 *  http://www.gnu.org/copyleft/gpl.html
 *
 */

package org.xbmc.android.remotesandbox.ui;

import java.util.List;

import org.xbmc.android.jsonrpc.api.FilesAPI.File;
import org.xbmc.android.jsonrpc.client.AbstractClient.ErrorHandler;
import org.xbmc.android.jsonrpc.client.FilesClient;
import org.xbmc.android.jsonrpc.service.AudioSyncService;
import org.xbmc.android.remotesandbox.R;
import org.xbmc.android.util.ListLoader;
import org.xbmc.android.util.ListLoader.Worker;

import android.content.Context;
import android.os.Bundle;
import android.os.Handler;
import android.support.v4.app.ListFragment;
import android.support.v4.app.LoaderManager;
import android.support.v4.content.Loader;
import android.text.TextUtils;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

public class FilesFragment extends ListFragment implements LoaderManager.LoaderCallbacks<List<File>> {

    private static final String TAG = FilesFragment.class.getSimpleName();

    public static final String EXTRA_PATH = "org.xbmc.android.extra.PATH";

    // This is the Adapter being used to display the list's data.
    private SourceListAdapter mAdapter;

    // If non-null, this is the current filter the user has provided.
    private String mCurrentFilter;
    private String mPath;

    private final AudioSyncService.RefreshObserver mRefreshObserver = new AudioSyncService.RefreshObserver() {

        @Override
        public void onRefreshed() {
            Log.d(TAG, "Refreshing Artists from database.");
            getLoaderManager().restartLoader(0, null, FilesFragment.this);
        }
    };

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

        // Give some text to display if there is no data.
        setEmptyText(getResources().getString(R.string.empty_music_sources));

        // We have a menu item to show in action bar.
        setHasOptionsMenu(true);

        // Create an empty adapter we will use to display the loaded data.
        mAdapter = new SourceListAdapter(getActivity());
        setListAdapter(mAdapter);

        mPath = getActivity().getIntent().getExtras().getString(EXTRA_PATH);

        // Start out with a progress indicator.
        setListShown(false);

        // Prepare the loader. Either re-connect with an existing one,
        // or start a new one.
        getLoaderManager().initLoader(0, null, this);
    }

    public boolean onQueryTextChange(String newText) {
        // Called when the action bar search text has changed. Update
        // the search filter, and restart the loader to do a new query
        // with this filter.
        mCurrentFilter = !TextUtils.isEmpty(newText) ? newText : null;
        getLoaderManager().restartLoader(0, null, this);
        return true;
    }

    @Override
    public void onListItemClick(ListView l, View v, int position, long id) {
        // Insert desired behavior here.
        Log.i("FragmentComplexList", "Item clicked: " + id);
    }

    @Override
    public Loader<List<File>> onCreateLoader(int id, Bundle args) {
        // This is called when a new Loader needs to be created. This
        // sample only has one Loader with no arguments, so it is simple.
        final Handler h = new Handler();
        return new ListLoader<File>(getActivity(), new Worker<File>() {
            @Override
            public List<File> doWork() {
                final FilesClient filesClient = new FilesClient();
                return filesClient.getDirectory(mPath, new ErrorHandler() {
                    @Override
                    public void handleError(int code, final String message) {
                        Log.e(TAG, "ERROR " + code + ": " + message);
                        h.post(new Runnable() {
                            @Override
                            public void run() {
                                Toast.makeText(getActivity(), "ERROR: " + message, Toast.LENGTH_LONG).show();
                            }
                        });
                    }
                });
            }
        });
    }

    @Override
    public void onLoadFinished(Loader<List<File>> loader, List<File> data) {

        if (!isVisible()) {
            return;
        }

        // Set the new data in the adapter.
        mAdapter.setData(data);

        // The list should now be shown.
        if (isResumed()) {
            setListShown(true);
        } else {
            setListShownNoAnimation(true);
        }
    }

    @Override
    public void onLoaderReset(Loader<List<File>> loader) {
        // Clear the data in the adapter.
        mAdapter.setData(null);
    }

    @Override
    public void onResume() {
        super.onResume();
        if (getActivity() instanceof BaseFragmentTabsActivity) {
            ((BaseFragmentTabsActivity) getActivity()).registerRefreshObserver(mRefreshObserver);
        }
        getLoaderManager().restartLoader(0, null, this);
    }

    @Override
    public void onPause() {
        super.onPause();
        if (getActivity() instanceof BaseFragmentTabsActivity) {
            ((BaseFragmentTabsActivity) getActivity()).unregisterRefreshObserver(mRefreshObserver);
        }
    }

    public static class SourceListAdapter extends ArrayAdapter<File> {
        private final LayoutInflater mInflater;

        public SourceListAdapter(Context context) {
            super(context, android.R.layout.simple_list_item_2);
            mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        }

        public void setData(List<File> data) {
            clear();
            if (data != null) {
                for (File source : data) {
                    add(source);
                }
            }
        }

        /**
         * Populate new items in the list.
         */
        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            View view;

            if (convertView == null) {
                view = mInflater.inflate(R.layout.list_item_onelabel, parent, false);
            } else {
                view = convertView;
            }
            File item = getItem(position);
            ((TextView) view.findViewById(R.id.item_title)).setText(item.label);

            return view;
        }
    }

}