public void CreateWidget()
{
if (!initialised)
{
context = AndroidApp.Context;
previousIntent = new Intent("Previous");
playStopIntent = new Intent("PlayStop");
nextIntent = new Intent("Next");
volumeUpIntent = new Intent("VolumeUp");
volumeDownIntent = new Intent("VolumeDown");
mediaButtonReceiverIntent = new Intent(Intent.ActionMediaButton);
intentFilter = new IntentFilter();
intentFilter.AddAction("Previous");
intentFilter.AddAction("PlayStop");
intentFilter.AddAction("Next");
intentFilter.AddAction("VolumeUp");
intentFilter.AddAction("VolumeDown");
intentFilter.AddAction(Intent.ActionMediaButton);
context.RegisterReceiver(this, intentFilter);
CreateMediaSession();
CreateNotificationChannel();
initialised = true;
}
// Works only on Android 11
var resultIntent = new Intent(context, typeof(MainActivity));
PendingIntent notifyPendingIntent = PendingIntent.GetActivity(
context, 0, resultIntent, PendingIntentFlags.UpdateCurrent
);
//
AndroidX.Core.App.NotificationCompat.Builder builder = new AndroidX.Core.App.NotificationCompat.Builder(context, channelId);
builder.SetVisibility(NotificationCompat.VisibilityPublic)
.SetSmallIcon(Resource.Mipmap.icon)
.AddAction(Resource.Drawable.ic_volume_down, "VolumeDown", PendingIntent.GetBroadcast(context, 0, volumeDownIntent, PendingIntentFlags.CancelCurrent)) // #0
.AddAction(Resource.Drawable.ic_skip_previous, "Previous", PendingIntent.GetBroadcast(context, 1, previousIntent, PendingIntentFlags.CancelCurrent)) // #1
.AddAction(Resource.Drawable.ic_play_circle_outline, "PlayStop", PendingIntent.GetBroadcast(context, 2, playStopIntent, PendingIntentFlags.CancelCurrent)) // #2
.AddAction(Resource.Drawable.ic_skip_next, "Next", PendingIntent.GetBroadcast(context, 3, nextIntent, PendingIntentFlags.CancelCurrent)) // #3
.AddAction(Resource.Drawable.ic_volume_up, "VolumeUp", PendingIntent.GetBroadcast(context, 4, volumeUpIntent, PendingIntentFlags.CancelCurrent)) // #4
.SetContentTitle(AppResources.UnknownTitle)
.SetContentText(AppResources.UnknownArtist)
.SetStyle(new AndroidX.Media.App.NotificationCompat.MediaStyle().SetShowActionsInCompactView(2 /* #2: pause button */).SetMediaSession(mediaSessionCompat.SessionToken))
.SetOngoing(true)
.SetSilent(true)
.SetContentIntent(notifyPendingIntent)
.SetVibrate(new long[] { 0L });
notification = builder.Build();
notificationManager.Notify(messageId, notification);
}
public void UpdateWidget(string artist, string title, byte[] thumbnail)
{
if (notification != null && mediaSessionCompat != null)
{
AndroidX.Core.App.NotificationCompat.Builder builder = new AndroidX.Core.App.NotificationCompat.Builder(context, channelId);
builder.SetVisibility(NotificationCompat.VisibilityPublic)
.SetSmallIcon(Resource.Mipmap.icon)
.AddAction(Resource.Drawable.ic_volume_down, "VolumeDown", PendingIntent.GetBroadcast(context, 0, volumeDownIntent, PendingIntentFlags.CancelCurrent)) // #0
.AddAction(Resource.Drawable.ic_skip_previous, "Previous", PendingIntent.GetBroadcast(context, 1, previousIntent, PendingIntentFlags.CancelCurrent)) // #1
.AddAction(Resource.Drawable.ic_play_circle_outline, "PlayStop", PendingIntent.GetBroadcast(context, 2, playStopIntent, PendingIntentFlags.CancelCurrent)) // #2
.AddAction(Resource.Drawable.ic_skip_next, "Next", PendingIntent.GetBroadcast(context, 3, nextIntent, PendingIntentFlags.CancelCurrent)) // #3
.AddAction(Resource.Drawable.ic_volume_up, "VolumeUp", PendingIntent.GetBroadcast(context, 4, volumeUpIntent, PendingIntentFlags.CancelCurrent)) // #4
.SetStyle(new AndroidX.Media.App.NotificationCompat.MediaStyle().SetShowActionsInCompactView(2 /* #2: pause button */).SetMediaSession(mediaSessionCompat.SessionToken))
.SetOngoing(true)
.SetSilent(true)
.SetVibrate(new long[] { 0L });
Android.Support.V4.Media.MediaMetadataCompat.Builder mediaMetadataCompat = new Android.Support.V4.Media.MediaMetadataCompat.Builder();
if (artist.Replace("\0", "") == "")
{
builder.SetContentTitle(AppResources.UnknownArtist);
mediaMetadataCompat.PutString(Android.Support.V4.Media.MediaMetadataCompat.MetadataKeyArtist, AppResources.UnknownArtist);
}
else
{
builder.SetContentTitle(artist);
mediaMetadataCompat.PutString(Android.Support.V4.Media.MediaMetadataCompat.MetadataKeyArtist, artist);
}
if (title.Replace("\0", "") == "")
{
builder.SetContentText(AppResources.UnknownTitle);
mediaMetadataCompat.PutString(Android.Support.V4.Media.MediaMetadataCompat.MetadataKeyTitle, AppResources.UnknownTitle);
}
else
{
builder.SetContentText(title);
mediaMetadataCompat.PutString(Android.Support.V4.Media.MediaMetadataCompat.MetadataKeyTitle, title);
}
Bitmap bitmap = null;
if (thumbnail != null)
{
bitmap = BitmapFactory.DecodeByteArray(thumbnail, 0, thumbnail.Length);
}
builder.SetLargeIcon(bitmap);
notification = builder.Build();
notificationManager.Notify(messageId, notification);
mediaSessionCompat.SetMetadata(mediaMetadataCompat.Build());
}
}
