PackageManager packageManager = context.getPackageManager();
ApplicationInfo appInfo = packageManager.getApplicationInfo(packageName, 0);
Drawable icon = appInfo.loadIcon(packageManager);
Bitmap bitmap;
try {
    if (Build.VERSION.SDK_INT >= 26 && icon instanceof AdaptiveIconDrawable) {
        bitmap = Bitmap.createBitmap(icon.getIntrinsicWidth(), icon.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(bitmap);
        icon.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
        icon.draw(canvas);
    } else {
        bitmap =  ((BitmapDrawable) icon).getBitmap();
    }
} catch (Exception e) {
}