How to change text in status bar dynamically

Question

I want to create an app that will show internet speed as notification in status bar the problem is that when i create notification it only shows icon but i think this is not the way (if you think there is a way using this then how ?) i used this codes snippet to show notification but what changes to do if i want the result that others are getting as you can see also in screen shot in the leftmost side :

Intent intent = new Intent(this, MainActivity.class);
    PendingIntent contenIntent = PendingIntent.getActivity(this,
            0, intent, 0);

    NotificationCompat.Builder notification = new NotificationCompat.Builder(this, CHANNEL_ID_2)
            .setLargeIcon(getBitmapFromString("22", 20, this))
            .setContentTitle("Title")
            .setContentText("Description")
            .setPriority(NotificationCompat.PRIORITY_HIGH)
            .setContentIntent(contenIntent)
            .setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
            .setTicker("23")
            .setSmallIcon(android.R.drawable.screen_background_light_transparent)
            .setOnlyAlertOnce(true);

    NotificationManagerCompat notificationManager = NotificationManagerCompat.from(this);
    notificationManager.notify(1, notification.build());

The text changes in notification per second and it is not fake. I have already tried this solution but not accurate since it overlaps with notification icon. Any help will be appreciated thanks in advance.

Please is there anybody who can solve this because there is no reference to do this in stackoverflow also i have searched a lot — Md Aman, May 28 '20 at 08:51
@ShoaibK. Nope i did not found anything, don't know how they (app like speed meter) do so.. — Md Aman, Dec 05 '20 at 12:30
Check my answer here: https://stackoverflow.com/questions/45376300/how-do-i-show-text-in-android-system-status-bar/65155581#65155581 Hope it will solve your problem. — Shoaib Kakal, Dec 05 '20 at 13:43
if you need more help in showing wifi speed with the unit, I will answer that too. — Shoaib Kakal, Dec 05 '20 at 13:43
Checked your answer great +1 but that way of showing smallIcon as bitmap works only for api level 23 and above but if we want it for lower api then what could be the possiblities ? — Md Aman, Dec 06 '20 at 14:35

score 0 · Answer 1 · answered May 28 '20 at 08:26

0

You can draw the text that you want to display on a bitmap and then set that as an icon to the notification.

NotificationCompat.Builder notification = new NotificationCompat.Builder(this, CHANNEL_ID_2);

notification.setSmallIcon(Icon.createWithBitmap(getBitmapIcon()))

implement getBitmapIcon() and return the bitmap icon that you want to display.

answered May 28 '20 at 08:26

Ismail Shaikh

482
4
13

I have already tried this `notification.setSmallIcon(Icon.createWithBitmap(getBitmapIcon()))` but setSmallIcon only says wrong argument type i.e, it requires int how to solve this problem. – Md Aman May 28 '20 at 08:39
1

And also setSmallIcon(Bitmap bitmap) is added in api level 23 but the other app like from screen shot above i am able to run the app in api level 22 also.How they do that ? – Md Aman May 28 '20 at 08:49
I am not sure about this but they might have used this class : https://developer.android.com/reference/android/service/notification/StatusBarNotification It is deprecated now though. – cgb_pandey May 28 '20 at 09:11
@MdAman, for api level >= 23, use the `setSmallIcon(Bitmap bitmap)` and get the `bitmap` object like explained here : https://stackoverflow.com/a/45376679/9167710 – cgb_pandey May 28 '20 at 09:14
@cgb_pandey .setSmallIcon(Icon.createWithBitmap(bitmap)) is throwing error message says, (int) can not be applied to (android.grapjics.Bitmap) – Md Aman May 28 '20 at 11:04
You said earlier that there exists a method `setSmallIcon(Bitmap bitmap)` which was added in api level 23. Just now, I tried and I didn't found it. Without such method, I think it is difficult to show the text as icon in status bar. – cgb_pandey May 28 '20 at 11:10

How to change text in status bar dynamically

1 Answers1