public override void OnReceive(Context context, Intent intent)
{
// Relay intent to WeatherAlertNotificationService
intent.SetClass(context, Java.Lang.Class.FromType(typeof(WeatherAlertNotificationService)));
WeatherAlertNotificationService.EnqueueWork(context, intent);
}
public static async Task CreateNotifications(LocationData location, List <WeatherAlert> alerts)
{
// Gets an instance of the NotificationManager service
NotificationManagerCompat mNotifyMgr = NotificationManagerCompat.From(App.Context);
InitChannel();
// Create click intent
// Start WeatherNow Activity with weather data
Intent intent = new Intent(App.Context, typeof(MainActivity))
.SetAction(Widgets.WeatherWidgetService.ACTION_SHOWALERTS)
.PutExtra("data", location.ToJson())
.PutExtra(Widgets.WeatherWidgetService.ACTION_SHOWALERTS, true)
.SetFlags(ActivityFlags.ClearTop | ActivityFlags.NewTask | ActivityFlags.ClearTask);
PendingIntent clickPendingIntent = PendingIntent.GetActivity(App.Context, 0, intent, 0);
// Build update
foreach (WeatherAlert alert in alerts)
{
var alertVM = new WeatherAlertViewModel(alert);
var iconBmp = ImageUtils.TintBitmap(
await BitmapFactory.DecodeResourceAsync(App.Context.Resources, GetDrawableFromAlertType(alertVM.AlertType)),
Color.Black);
var title = String.Format("{0} - {1}", alertVM.Title, location.name);
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(App.Context, NOT_CHANNEL_ID)
.SetSmallIcon(Resource.Drawable.ic_error_white)
.SetLargeIcon(iconBmp)
.SetContentTitle(title)
.SetContentText(alertVM.ExpireDate)
.SetStyle(new NotificationCompat.BigTextStyle().BigText(alertVM.ExpireDate))
.SetContentIntent(clickPendingIntent)
.SetOnlyAlertOnce(true)
.SetAutoCancel(true)
.SetPriority(NotificationCompat.PriorityDefault) as NotificationCompat.Builder;
if (Build.VERSION.SdkInt < BuildVersionCodes.N)
{
// Tell service to remove stored notification
mBuilder.SetDeleteIntent(GetDeleteNotificationIntent((int)alertVM.AlertType));
}
if (Build.VERSION.SdkInt >= BuildVersionCodes.N ||
WeatherAlertNotificationService.GetNotificationsCount() >= MIN_GROUPCOUNT)
{
mBuilder.SetGroup(TAG);
}
// Builds the notification and issues it.
// Tag: location.query; id: weather alert type
if (Build.VERSION.SdkInt < BuildVersionCodes.N)
{
WeatherAlertNotificationService.AddNotication((int)alertVM.AlertType, title);
}
mNotifyMgr.Notify(location.query, (int)alertVM.AlertType, mBuilder.Build());
}
bool buildSummary = false;
if (Build.VERSION.SdkInt >= BuildVersionCodes.M)
{
try
{
NotificationManager mNotifyMgrV23 = (NotificationManager)App.Context.GetSystemService(App.NotificationService);
var statNotifs = mNotifyMgrV23.GetActiveNotifications();
if (statNotifs?.Length > 0)
{
buildSummary = statNotifs.Count(not => location.query.Equals(not.Tag)) >= MIN_GROUPCOUNT;
}
}
catch (Exception ex)
{
Logger.WriteLine(LoggerLevel.Debug, ex, "SimpleWeather: {0}: error accessing notifications", LOG_TAG);
}
}
else
{
buildSummary = WeatherAlertNotificationService.GetNotificationsCount() >= MIN_GROUPCOUNT;
}
if (buildSummary)
{
// Notification inboxStyle for grouped notifications
var inboxStyle = new NotificationCompat.InboxStyle();
if (Build.VERSION.SdkInt < BuildVersionCodes.N)
{
// Add active notification titles to summary notification
foreach (var notif in WeatherAlertNotificationService.GetNotifications())
{
mNotifyMgr.Cancel(location.query, notif.Key);
inboxStyle.AddLine(notif.Value);
}
inboxStyle.SetBigContentTitle(App.Context.GetString(Resource.String.title_fragment_alerts));
inboxStyle.SetSummaryText(location.name);
}
else
{
inboxStyle.SetSummaryText(App.Context.GetString(Resource.String.title_fragment_alerts));
}
NotificationCompat.Builder mSummaryBuilder =
new NotificationCompat.Builder(App.Context, NOT_CHANNEL_ID)
.SetSmallIcon(Resource.Drawable.ic_error_white)
.SetContentTitle(App.Context.GetString(Resource.String.title_fragment_alerts))
.SetContentText(location.name)
.SetStyle(inboxStyle)
.SetGroup(TAG)
.SetGroupSummary(true)
.SetContentIntent(clickPendingIntent)
.SetOnlyAlertOnce(true)
.SetAutoCancel(true) as NotificationCompat.Builder;
if (Build.VERSION.SdkInt < BuildVersionCodes.N)
{
mSummaryBuilder.SetDeleteIntent(GetDeleteAllNotificationsIntent());
}
// Builds the summary notification and issues it.
mNotifyMgr.Notify(location.query, SUMMARY_ID, mSummaryBuilder.Build());
}
}