Use notification channel on Android (#4)

This is required for Android Oreo.

Hard-code channel parameters for now.

Author: akalin-keybase

android/build.gradle

@@ -16,12 +16,12 @@ allprojects {
 apply plugin: 'com.android.library'
 
 android {
-    compileSdkVersion 23
-    buildToolsVersion "23.0.1"
+    compileSdkVersion 26
+    buildToolsVersion "26.0.3"
 
     defaultConfig {
         minSdkVersion 16
-        targetSdkVersion 23
+        targetSdkVersion 28
         versionCode 1
         versionName "1.0"
         ndk {
@@ -39,7 +39,7 @@ android {
 dependencies {
     compile fileTree(dir: 'libs', include: ['*.jar'])
     testCompile 'junit:junit:4.12'
-    compile 'com.android.support:appcompat-v7:23.1.1'
+    compile 'com.android.support:appcompat-v7:26.1.+'
     compile 'com.facebook.react:react-native:+'
     compile 'com.google.android.gms:play-services-gcm:+'
     compile 'me.leolin:ShortcutBadger:1.1.8@aar'

android/src/main/java/com/dieam/reactnativepushnotification/modules/RNPushNotification.java

@@ -2,11 +2,13 @@
 
 import android.app.Activity;
 import android.app.Application;
+import android.app.NotificationChannel;
 import android.app.NotificationManager;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
+import android.os.Build;
 import android.os.Bundle;
 import android.support.v4.content.LocalBroadcastManager;
 
@@ -27,7 +29,15 @@
 import java.util.Random;
 
 public class RNPushNotification extends ReactContextBaseJavaModule implements ActivityEventListener {
-    public static final String LOG_TAG = "RNPushNotification";// all logging should use this tag
+    public static final String LOG_TAG = "RNPushNotification"; // all logging should use this tag
+
+    // Hardcode these channel parameters for now; ideally, we'd be
+    // able to plumb this through from PushNotification.configure.
+
+    public static final String CHANNEL_ID = "keybase_channel_all";
+
+    private static final String CHANNEL_NAME = "Keybase";
+    private static final int CHANNEL_IMPORTANCE = NotificationManager.IMPORTANCE_DEFAULT;
 
     private RNPushNotificationHelper mRNPushNotificationHelper;
     private final Random mRandomNumberGenerator = new Random(System.currentTimeMillis());
@@ -45,6 +55,13 @@ public RNPushNotification(ReactApplicationContext reactContext) {
         mJsDelivery = new RNPushNotificationJsDelivery(reactContext);
 
         registerNotificationsRegistration();
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            NotificationChannel channel = new NotificationChannel(CHANNEL_ID, CHANNEL_NAME, CHANNEL_IMPORTANCE);
+            NotificationManager manager =
+                (NotificationManager) reactContext.getSystemService(reactContext.NOTIFICATION_SERVICE);
+            manager.createNotificationChannel(channel);
+        }
     }
 
     @Override

android/src/main/java/com/dieam/reactnativepushnotification/modules/RNPushNotificationHelper.java

@@ -158,7 +158,7 @@ public void sendToNotificationCentre(Bundle bundle) {
                 title = context.getPackageManager().getApplicationLabel(appInfo).toString();
             }
 
-            NotificationCompat.Builder notification = new NotificationCompat.Builder(context)
+            NotificationCompat.Builder notification = new NotificationCompat.Builder(context, RNPushNotification.CHANNEL_ID)
                     .setContentTitle(title)
                     .setTicker(bundle.getString("ticker"))
                     .setVisibility(NotificationCompat.VISIBILITY_PRIVATE)