Notification - set large icon on pre Lollipop Android version

Question

I had been already working on app with avalanche message notifications and I'd faced a problem with notification large icon size on older than Lollipop Android version driven devices.

On Lollipop and Marshmallow devices it looks fine:

but when I had opened an app on my Android 4.4 emulator, I found this:

The image wasn't scaled, fitted, just cropped in the middle. It definitely looked not good.

NOTE: To make it clear, that this large notification icons is downloaded from server together with message date and content. It looks like this:

My solution

After some hours of work in my avalanche notification class I added two methods, which run only if Android pre-lollipop version is detected:

the first one changes icon shape from rectangle to square and adds white background
the second one changes icon dimensions to 96x96

After changes, my notification icon on the same Kitkat emulator (Moto X 2013) looks much better:

Question

Could you tell me if there is a much simpler way to deal with this problem? If not, which icon sizes I need to support, besides 96x96?

Thanks in advance

Giovanny Piñeros Giovanny Piñeros · Accepted Answer · 2015-12-23T22:49:17

If i understood correctly, you want to have the notification icon to look good both on lollipop devices and pre lollipop, in my experience what i did to ensure a good look in both SDK's was this:

For the notification large icon i use resources with these size's : 96x96 (hdpi) 64x64 (mdpi) 128x128 (xhdpi) 192x192 (xxhdpi) 256x256 (xxxhdpi)

I use this code to configure the notification style:

NotificationCompat.BigTextStyle notiStyle = new       NotificationCompat.BigTextStyle();
notiStyle.setBigContentTitle(title);
notiStyle.bigText(msg);

NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(context)
        .setContentTitle(title)
        .setContentText(msg)
        .setColor(coloresOnboarding.getColor())
        .setCategory(NotificationCompat.CATEGORY_MESSAGE)
        .setPriority(NotificationCompat.PRIORITY_HIGH)
        .setVibrate(new long[]{1000, 1000, 1000, 1000, 1000})
        .setSmallIcon(R.mipmap.ic_launchersmall)
        .setAutoCancel(true)
        .setLargeIcon(BitmapFactory.decodeResource(context.getResources(), R.mipmap.ic_launcherlarge))
        .setStyle(notiStyle);
Intent resultIntent = new Intent(context, HeadAppMain.class);
PendingIntent pendingIntent = PendingIntent.getActivity(context, 0, resultIntent, PendingIntent.FLAG_UPDATE_CURRENT);
mBuilder.setContentIntent(pendingIntent);
NotificationManager mNotificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
int mId=1;
mBuilder.setAutoCancel(true);

i hope this help you.

Notification - set large icon on pre Lollipop Android version

My solution

Question

1 Answers