Android Open Source - Todo List Widget Provider

• Back to Example/example  ↑

From Project

Back to project page Todo.

License

The source code is released under:

GNU General Public License

Java Source Code

/**
 * This file is part of Todo.txt for Android, an app for managing your todo.txt file (http://todotxt.com).
 */* ww  w .  ja  v a  2s .  co m*/
 * Copyright (c) 2009-2013 Todo.txt for Android contributors (http://todotxt.com)
 *
 * LICENSE:
 *
 * Todo.txt for Android 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 of the License, or (at your option) any
 * later version.
 *
 * Todo.txt for Android 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 Todo.txt for Android. If not, see
 * <http://www.gnu.org/licenses/>.
 *
 * Todo.txt for Android's source code is available at https://github.com/ginatrapani/todo.txt-android
 *
 * @author Todo.txt for Android contributors <todotxt@yahoogroups.com>
 * @license http://www.gnu.org/licenses/gpl.html
 * @copyright 2009-2013 Todo.txt for Android contributors (http://todotxt.com)
 */

package com.todotxt.todotxttouch.widget;

import android.annotation.TargetApi;
import android.app.PendingIntent;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.RemoteViews;
import com.todotxt.todotxttouch.Constants;
import com.todotxt.todotxttouch.R;
import com.todotxt.todotxttouch.TodoTxtTouch;

@TargetApi (Build.VERSION_CODES.ICE_CREAM_SANDWICH)
public class ListWidgetProvider extends AppWidgetProvider {
  public static String ITEM_ACTION = "com.todotxt.todotxttouch.widget.ITEM";
  public static String REFRESH_ACTION = "com.todotxt.todotxttouch.widget.REFRESH";
  private static final String TAG = ListWidgetProvider.class.getName();

  @Override
  public void onReceive(Context context, Intent intent) {
    final String action = intent.getAction();

    if (action.equals(REFRESH_ACTION)) {
      Log.d(TAG, "Widget Refresh button pressed");

      Intent i = new Intent(Constants.INTENT_START_SYNC_WITH_REMOTE);
      context.sendBroadcast(i);
      Bundle extras = intent.getExtras();

      if (extras != null) {
        int appWidgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID);
        AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
        RemoteViews rv = buildLayout(context, appWidgetId, true);
        appWidgetManager.partiallyUpdateAppWidget(appWidgetId, rv);
      }
    } else if (action.equals(Constants.INTENT_WIDGET_UPDATE)) {
      Log.d(TAG, "Update widget intent received ");

      int[] appWidgetIds = null;
      AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
      Bundle extras = intent.getExtras();

      if (extras != null) {
        appWidgetIds = extras.getIntArray(AppWidgetManager.EXTRA_APPWIDGET_IDS);
      }

      if (appWidgetIds == null) {
        appWidgetIds = appWidgetManager
          .getAppWidgetIds(new ComponentName(context,
              ListWidgetProvider.class.getName()
            )
          );
      }

      if (appWidgetIds != null && appWidgetIds.length > 0) {
        this.onUpdate(context, appWidgetManager, appWidgetIds);
      }
    }

    super.onReceive(context, intent);
  }

  @Override
  public void onUpdate(Context context, AppWidgetManager appWidgetManager,
    int[] appWidgetIds) {
    for (int i = 0; i < appWidgetIds.length; ++i) {
      RemoteViews layout = buildLayout(context, appWidgetIds[i], false);
      appWidgetManager.updateAppWidget(appWidgetIds[i], layout);
    }

    appWidgetManager.notifyAppWidgetViewDataChanged(appWidgetIds, R.id.widget_list);
    super.onUpdate(context, appWidgetManager, appWidgetIds);
  }

  private RemoteViews buildLayout(Context context, int appWidgetId, boolean showProgress) {
    RemoteViews rv;
    // Specify the service to provide data for the collection widget. Note
    // that we need to
    // embed the appWidgetId via the data otherwise it will be ignored.
    final Intent intent = new Intent(context, ListWidgetService.class);
    intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
    intent.setData(Uri.parse(intent.toUri(Intent.URI_INTENT_SCHEME)));
    rv = new RemoteViews(context.getPackageName(), R.layout.listwidget);
    rv.setRemoteAdapter(R.id.widget_list, intent);

    // Set the empty view to be displayed if the collection is empty. It
    // must be a sibling
    // view of the collection view.
    rv.setEmptyView(R.id.widget_list, R.id.empty_view);

    // Set click listener for the logo
    //        Intent clickIntent = new Intent(context, LoginScreen.class);
    //        PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, clickIntent, 0);
    //        rv.setOnClickPendingIntent(R.id.listwidget_header, pendingIntent);

    // Set click listener for the 'add' button
    //        if (isAuthenticated(context)) {
    //            PendingIntent taskStackBuilderPendingIntent = TaskStackBuilder
    //                    .create(context)
    //                    .addNextIntent(new Intent(context, TodoTxtTouch.class))
    //                    .addNextIntent(new Intent(context, AddTask.class))
    //                    .getPendingIntent(0, 0);
    //            rv.setOnClickPendingIntent(R.id.listwidget_additem,
    //                    taskStackBuilderPendingIntent);
    //        } else {
    //            // if not logged in, just go to login screen
    //            rv.setOnClickPendingIntent(R.id.listwidget_additem, pendingIntent);
    //        }

    // Bind a click listener template for the contents of the list.
    // Note that we
    // need to update the intent's data if we set an extra, since the extras
    // will be
    // ignored otherwise.
    final Intent onClickIntent = new Intent(context, TodoTxtTouch.class);
    onClickIntent.setAction(ListWidgetProvider.ITEM_ACTION);
    onClickIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
    onClickIntent.setData(Uri.parse(onClickIntent.toUri(Intent.URI_INTENT_SCHEME)));
    final PendingIntent onClickPendingIntent = PendingIntent.getActivity(
      context, 0, onClickIntent, 0
    );
    rv.setPendingIntentTemplate(R.id.widget_list, onClickPendingIntent);

    // Bind the click intent for the refresh button on the widget
    final Intent refreshIntent = new Intent(context, ListWidgetProvider.class);
    refreshIntent.setAction(ListWidgetProvider.REFRESH_ACTION);
    refreshIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
    final PendingIntent refreshPendingIntent = PendingIntent.getBroadcast(
      context, 0, refreshIntent, PendingIntent.FLAG_UPDATE_CURRENT
    );
    rv.setOnClickPendingIntent(R.id.listwidget_refresh, refreshPendingIntent);

    if (showProgress) {
      rv.setViewVisibility(R.id.listwidget_progress, View.VISIBLE);
      rv.setViewVisibility(R.id.listwidget_refresh, View.INVISIBLE);
    } else {
      rv.setViewVisibility(R.id.listwidget_progress, View.INVISIBLE);
      rv.setViewVisibility(R.id.listwidget_refresh, View.VISIBLE);
    }

    return rv;
  }

  //    private boolean isAuthenticated(Context context) {
  //        TodoApplication app = (TodoApplication) context.getApplicationContext();
  //
  //        return app.getRemoteClientManager().getRemoteClient().isAuthenticated();
  //    }
}

Java Source Code List

• Back to Example/example  ↑