Android Open Source - calendar-widget Event App Widget Provider

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License

The source code is released under:
Apache License
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Java Source Code

package com.plusonelabs.calendar;
/*from ww  w  . j av  a2s . co  m*/
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.content.SharedPreferences;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.graphics.Color;
import android.net.Uri;
import android.preference.PreferenceManager;
import android.text.format.DateUtils;
import android.view.ContextThemeWrapper;
import android.view.View;
import android.widget.RemoteViews;

import org.joda.time.DateTime;

import java.util.List;
import java.util.Locale;

import static android.graphics.Color.alpha;
import static android.graphics.Color.blue;
import static android.graphics.Color.green;
import static android.graphics.Color.red;
import static com.plusonelabs.calendar.CalendarIntentUtil.createOpenCalendarAtDayIntent;
import static com.plusonelabs.calendar.CalendarIntentUtil.createOpenCalendarEventPendingIntent;
import static com.plusonelabs.calendar.CalendarIntentUtil.createOpenCalendarPendingIntent;
import static com.plusonelabs.calendar.RemoteViewsUtil.setAlpha;
import static com.plusonelabs.calendar.RemoteViewsUtil.setColorFilter;
import static com.plusonelabs.calendar.RemoteViewsUtil.setImageFromAttr;
import static com.plusonelabs.calendar.RemoteViewsUtil.setTextColorFromAttr;
import static com.plusonelabs.calendar.Theme.getCurrentThemeId;
import static com.plusonelabs.calendar.prefs.CalendarPreferences.PREF_BACKGROUND_COLOR;
import static com.plusonelabs.calendar.prefs.CalendarPreferences.PREF_BACKGROUND_COLOR_DEFAULT;
import static com.plusonelabs.calendar.prefs.CalendarPreferences.PREF_HEADER_THEME;
import static com.plusonelabs.calendar.prefs.CalendarPreferences.PREF_HEADER_THEME_DEFAULT;
import static com.plusonelabs.calendar.prefs.CalendarPreferences.PREF_SHOW_HEADER;

public class EventAppWidgetProvider extends AppWidgetProvider {

  @Override
  public void onUpdate(Context baseContext, AppWidgetManager appWidgetManager, int[] appWidgetIds) {
        int themeId = getCurrentThemeId(baseContext, PREF_HEADER_THEME, PREF_HEADER_THEME_DEFAULT);
        Context context = new ContextThemeWrapper(baseContext, themeId);
        AlarmReceiver.scheduleAlarm(context);
        for (int widgetId : appWidgetIds) {
            RemoteViews rv = new RemoteViews(context.getPackageName(), R.layout.widget);
            configureBackground(context, rv);
            configureActionBar(context, rv);
            configureList(context, widgetId, rv);
            appWidgetManager.updateAppWidget(widgetId, rv);
        }
    }

  private void configureBackground(Context context, RemoteViews rv) {
    SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
    if (prefs.getBoolean(PREF_SHOW_HEADER, true)) {
      rv.setViewVisibility(R.id.action_bar, View.VISIBLE);
    } else {
      rv.setViewVisibility(R.id.action_bar, View.GONE);
    }
        int color = prefs.getInt(PREF_BACKGROUND_COLOR, PREF_BACKGROUND_COLOR_DEFAULT);
        int opaqueColor = Color.rgb(red(color), green(color), blue(color));
        setColorFilter(rv, R.id.background_image, opaqueColor);
        setAlpha(rv, R.id.background_image, alpha(color));
    }

    private void configureActionBar(Context context, RemoteViews rv) {
        rv.setOnClickPendingIntent(R.id.calendar_current_date, createOpenCalendarPendingIntent(context));
        String formattedDate = DateUtils.formatDateTime(context, System.currentTimeMillis(),
        DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_SHOW_WEEKDAY);
        rv.setTextViewText(R.id.calendar_current_date, formattedDate.toUpperCase(Locale.getDefault()));
        setTextColorFromAttr(context, rv, R.id.calendar_current_date, R.attr.header);
        setActionIcons(context, rv);
        Intent startConfigIntent = new Intent(context, WidgetConfigurationActivity.class);
        PendingIntent menuPendingIntent = PendingIntent.getActivity(context, 0, startConfigIntent,
        PendingIntent.FLAG_UPDATE_CURRENT);
    rv.setOnClickPendingIntent(R.id.overflow_menu, menuPendingIntent);
    Intent intent = CalendarIntentUtil.createNewEventIntent();
    if (isIntentAvailable(context, intent)) {
      PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent,
          PendingIntent.FLAG_UPDATE_CURRENT);
      rv.setOnClickPendingIntent(R.id.add_event, pendingIntent);
    } else {
      rv.setViewVisibility(R.id.add_event, View.GONE);
    }
  }

    private void setActionIcons(Context context, RemoteViews rv) {
        setImageFromAttr(context, rv, R.id.add_event, R.attr.header_action_add_event);
        setImageFromAttr(context, rv, R.id.overflow_menu, R.attr.header_action_overflow);
        int themeId = getCurrentThemeId(context, PREF_HEADER_THEME, PREF_HEADER_THEME_DEFAULT);
        int alpha = 255;
        if (themeId == R.style.Theme_Calendar_Dark || themeId == R.style.Theme_Calendar_Light) {
            alpha = 154;
        }
        setAlpha(rv, R.id.add_event, alpha);
        setAlpha(rv, R.id.overflow_menu, alpha);
    }

    private static boolean isIntentAvailable(Context context, Intent intent) {
        PackageManager packageManager = context.getPackageManager();
        List<ResolveInfo> list = packageManager.queryIntentActivities(intent,
                PackageManager.MATCH_DEFAULT_ONLY);
        return list.size() > 0;
    }

  private void configureList(Context context, int widgetId, RemoteViews rv) {
    Intent intent = new Intent(context, EventWidgetService.class);
    intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, widgetId);
    intent.setData(Uri.parse(intent.toUri(Intent.URI_INTENT_SCHEME)));
    rv.setRemoteAdapter(R.id.event_list, intent);
    rv.setEmptyView(R.id.event_list, R.id.empty_event_list);
    rv.setPendingIntentTemplate(R.id.event_list, createOpenCalendarEventPendingIntent(context));
        rv.setOnClickFillInIntent(R.id.empty_event_list, createOpenCalendarAtDayIntent(new DateTime()));
        setTextColorFromAttr(context, rv, R.id.empty_event_list, R.attr.eventEntryTitle);
    }

    public static void updateEventList(Context context) {
    AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
    ComponentName compName = new ComponentName(context, EventAppWidgetProvider.class);
    int[] widgetIds = appWidgetManager.getAppWidgetIds(compName);
    appWidgetManager.notifyAppWidgetViewDataChanged(widgetIds, R.id.event_list);
  }

  public static void updateAllWidgets(Context context) {
    AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(context);
    ComponentName compName = new ComponentName(context, EventAppWidgetProvider.class);
    Intent intent = new Intent(context, EventAppWidgetProvider.class);
    intent.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
    intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS,
        appWidgetManager.getAppWidgetIds(compName));
    context.sendBroadcast(intent);
  }

  public static void updateWidget(Context context, int appWidgetId) {
    Intent intent = new Intent(context, EventAppWidgetProvider.class);
    intent.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
    intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
    context.sendBroadcast(intent);
  }

}
Java Source Code List
