Make the Emacs icon ``adaptive''

* java/AndroidManifest.xml.in (EmacsApplication): Set icon to
@mipmap/emacs_icon.

* java/org/gnu/emacs/EmacsService.java (onStartCommand): Pick a
better name for the persistent notification channel.

* java/res/drawable/emacs_background.xml:

* java/res/drawable/emacs_foreground.xml:

* java/res/mipmap/emacs_icon.png:

* java/res/mipmap-v26/emacs_icon.xml: New files, comprising an
``adaptive icon'' required by some Android launchers.

1 files changed, 1 insertions, 1 deletions

diff --git a/java/org/gnu/emacs/EmacsService.java b/java/org/gnu/emacs/EmacsService.java
index 19ce67c59b7..404796cd08c 100644
--- a/java/org/gnu/emacs/EmacsService.java
+++ b/java/org/gnu/emacs/EmacsService.java
@@ -171,7 +171,7 @@ public final class EmacsService extends Service
                      + " may disable it if you want;"
                      + " see (emacs)Android Environment.");
         channel
-          = new NotificationChannel ("emacs", "Emacs persistent notification",
+          = new NotificationChannel ("emacs", "Emacs Background Service",
                                      NotificationManager.IMPORTANCE_DEFAULT);
         manager.createNotificationChannel (channel);
         notification = (new Notification.Builder (this, "emacs")