From 2d91c133a811f54b7ed32a29430036f1c1812006 Mon Sep 17 00:00:00 2001
From: Eric House <xwords@eehouse.org>
Date: Sun, 16 Dec 2018 10:41:04 -0800
Subject: [PATCH] new file (forgotten earlier)

---
 .../org/eehouse/android/xw4/Channels.java     | 72 +++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 xwords4/android/app/src/main/java/org/eehouse/android/xw4/Channels.java

diff --git a/xwords4/android/app/src/main/java/org/eehouse/android/xw4/Channels.java b/xwords4/android/app/src/main/java/org/eehouse/android/xw4/Channels.java
new file mode 100644
index 000000000..9fdf57cab
--- /dev/null
+++ b/xwords4/android/app/src/main/java/org/eehouse/android/xw4/Channels.java
@@ -0,0 +1,72 @@
+/* -*- compile-command: "find-and-gradle.sh insXw4Deb"; -*- */
+/*
+ * Copyright 2010 - 2014 by Eric House (xwords@eehouse.org).  All
+ * rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+package org.eehouse.android.xw4;
+
+import android.os.Build;
+import android.content.Context;
+import java.util.HashSet;
+import java.util.Set;
+import android.app.NotificationChannel;
+import android.app.NotificationManager;
+
+public class Channels {
+
+    enum ID {
+        FOREGROUND(R.string.foreground_channel_expl,
+                   NotificationManager.IMPORTANCE_LOW),
+        GAME_EVENT(R.string.gameevent_channel_expl,
+                   NotificationManager.IMPORTANCE_LOW);
+
+        private int mExpl;
+        private int mImportance;
+        private ID( int expl, int imp )
+        {
+            mExpl = expl;
+            mImportance = imp;
+        }
+
+        public int getDesc() { return mExpl; }
+        private int getImportance() { return mImportance; }
+    }
+
+    private static Set<ID> sChannelsMade = new HashSet<>();
+    public static String getChannelID( Context context, ID id )
+    {
+        final String name = id.toString();
+        if ( ! sChannelsMade.contains( id ) ) {
+            sChannelsMade.add( id );
+            if ( Build.VERSION.SDK_INT >= Build.VERSION_CODES.O ) {
+                NotificationManager notMgr = (NotificationManager)
+                    context.getSystemService( Context.NOTIFICATION_SERVICE );
+
+                NotificationChannel channel = notMgr.getNotificationChannel( name );
+                if ( channel == null ) {
+                    String channelDescription = context.getString( id.getDesc() );
+                    channel = new NotificationChannel( name, channelDescription,
+                                                       id.getImportance() );
+                    channel.enableVibration( true );
+                    notMgr.createNotificationChannel( channel );
+                }
+            }
+        }
+        return name;
+    }
+}