Implement expand and collapse notification android

Question

I need to implement expand and collapse notification in status bar for android 4.0 and above version. I have search on google for this but didn't getting any code solution for implementation does anybody have I idea how to implement this

Thank You in advance

Answer 1

An expandable Notification is a special case of a Notification Big View. If the Big View is not at the top of the notification drawer, it it shown 'closed' and is expandable by swipe. Quote from Android Developers:

A notification's big view appears only when the notification is expanded, which happens when the notification is at the top of the notification drawer, or when the user expands the notification with a gesture. Expanded notifications are available starting with Android 4.1.

The Big View Notification can be created as follows:

Notification notification = new Notification.BigTextStyle(builder) .bigText(myText).build(); 

or

Notification notification = new Notification.BigPictureStyle(builder) .bigPicture(   BitmapFactory.decodeResource(getResources(),     R.drawable.my_picture)).build(); 

Here is a tutorial.

Answer 2

Notification noti = new Notification.Builder() ... // The same notification properties as the others .setStyle(new Notification.BigPictureStyle().bigPicture(mBitmap)) .build(); 

You change

.setStyle(new NotificationCompat.BigTextStyle().bigText(th_alert)) 

along with the announcement OK !!!

notification = new NotificationCompat.Builder(context) 

Here is an example:

Expandable Notifications and Notifications Groups

You can set Code

Intent intent = new Intent(context, ReserveStatusActivity.class); PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, intent, 0); NotificationManager notificationManager =             (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE); intent = new Intent(String.valueOf(PushActivity.class)); intent.putExtra("message", MESSAGE); TaskStackBuilder stackBuilder = TaskStackBuilder.create(context); stackBuilder.addParentStack(PushActivity.class); stackBuilder.addNextIntent(intent); // PendingIntent pendingIntent = stackBuilder.getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);  // android.support.v4.app.NotificationCompat.BigTextStyle bigStyle = new     NotificationCompat.BigTextStyle(); // bigStyle.bigText((CharSequence) context);  notification = new NotificationCompat.Builder(context)     .setSmallIcon(R.mipmap.ic_launcher)     .setContentTitle(th_title)     .setContentText(th_alert)     .setAutoCancel(true)  // .setStyle(new Notification.BigTextStyle().bigText(th_alert)  ตัวเก่า  // .setStyle(new NotificationCompat.BigTextStyle().bigText(th_title))     .setStyle(new NotificationCompat.BigTextStyle().bigText(th_alert))     .setContentIntent(pendingIntent)     .setNumber(++numMessages)     .build();  notification.sound = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION); notificationManager.notify(1000, notification); 

or

private void sendNotification(RemoteMessage.Notification notification, Map<String, String> data) {             Bitmap icon = BitmapFactory.decodeResource(getResources(), R.drawable.logo);                  Intent intent = new Intent(this, MainActivity.class);             intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);             PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_ONE_SHOT);                  NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(this)                    // .setContentTitle(notification.getTitle())                     .setContentTitle(getResources().getText(R.string.app_name))                     .setContentText(notification.getBody())                     .setAutoCancel(true)                     .setSound(RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION))                     .setContentIntent(pendingIntent)                     .setStyle(new NotificationCompat.BigTextStyle().bigText(notification.getBody()))                     .setContentInfo(notification.getTitle())                     .setLargeIcon(icon)                     .setColor(Color.RED)                     .setSmallIcon(R.drawable.logo);                  try {                 String picture_url = data.get("picture_url");                 if (picture_url != null && !"".equals(picture_url)) {                     URL url = new URL(picture_url);                     Bitmap bigPicture = BitmapFactory.decodeStream(url.openConnection().getInputStream());                     notificationBuilder.setStyle(                             new NotificationCompat.BigPictureStyle().bigPicture(bigPicture).setSummaryText(notification.getBody())                     );                 }             } catch (IOException e) {                 e.printStackTrace();             }                  notificationBuilder.setDefaults(Notification.DEFAULT_VIBRATE);             notificationBuilder.setLights(Color.YELLOW, 1000, 300);                  NotificationManager notificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);             notificationManager.notify(0, notificationBuilder.build());         } 

27/07/2021 :

You should can read detail this : Expandable Notifications and Notifications Groups