Fix update notifications on Android O

app/src/main/AndroidManifest.xml

@@ -9,6 +9,7 @@
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
     <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
     <uses-permission android:name="android.permission.VIBRATE" />
+    <uses-permission android:name="android.permission.REQUEST_INSTALL_PACKAGES" />
 
     <application
         android:name=".MagiskManager"

app/src/main/java/com/topjohnwu/magisk/MagiskManager.java

@@ -1,8 +1,12 @@
 package com.topjohnwu.magisk;
 
 import android.app.Application;
+import android.app.NotificationChannel;
+import android.app.NotificationManager;
+import android.content.Context;
 import android.content.SharedPreferences;
 import android.content.pm.ApplicationInfo;
+import android.os.Build;
 import android.os.Handler;
 import android.preference.PreferenceManager;
 import android.text.TextUtils;
@@ -31,6 +35,7 @@ public class MagiskManager extends Application {
     public static final String BUSYBOX_VERSION = "1.26.2";
     public static final String MAGISKHIDE_PROP = "persist.magisk.hide";
     public static final String DISABLE_INDICATION_PROP = "ro.magisk.disable";
+    public static final String NOTIFICATION_CHANNEL = "magisk_update_notice";
 
     // Events
     public final CallbackEvent<Void> blockDetectionDone = new CallbackEvent<>();
@@ -143,6 +148,14 @@ public class MagiskManager extends Application {
                 .apply();
         // Add busybox to PATH
         Shell.su("PATH=$PATH:" + busybox.getParent());
+
+        // Create notification channel on Android O
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            NotificationChannel channel = new NotificationChannel(NOTIFICATION_CHANNEL,
+                    getString(R.string.magisk_updates), NotificationManager.IMPORTANCE_DEFAULT);
+            ((NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE)).createNotificationChannel(channel);
+        }
+
     }
 
     public void initSUConfig() {

app/src/main/java/com/topjohnwu/magisk/utils/Utils.java

@@ -105,7 +105,7 @@ public class Utils {
             receiver.setDownloadID(downloadManager.enqueue(request));
         }
         receiver.setFilename(filename);
-        context.registerReceiver(receiver, new IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE));
+        context.getApplicationContext().registerReceiver(receiver, new IntentFilter(DownloadManager.ACTION_DOWNLOAD_COMPLETE));
     }
 
     public static String getLegalFilename(CharSequence filename) {
@@ -214,6 +214,7 @@ public class Utils {
         builder.setSmallIcon(R.drawable.ic_magisk)
                 .setContentTitle(magiskManager.getString(R.string.magisk_update_title))
                 .setContentText(magiskManager.getString(R.string.magisk_update_available, magiskManager.remoteMagiskVersionString))
+                .setChannelId(MagiskManager.NOTIFICATION_CHANNEL)
                 .setVibrate(new long[]{0, 100, 100, 100})
                 .setAutoCancel(true);
         Intent intent = new Intent(magiskManager, SplashActivity.class);
@@ -234,6 +235,7 @@ public class Utils {
         builder.setSmallIcon(R.drawable.ic_magisk)
                 .setContentTitle(magiskManager.getString(R.string.manager_update_title))
                 .setContentText(magiskManager.getString(R.string.manager_download_install))
+                .setChannelId(MagiskManager.NOTIFICATION_CHANNEL)
                 .setVibrate(new long[]{0, 100, 100, 100})
                 .setAutoCancel(true);
         Intent intent = new Intent(magiskManager, ManagerUpdate.class);

app/src/main/res/values/strings.xml

@@ -132,6 +132,7 @@
     <string name="manual_boot_image">Please manually select a boot image!</string>
     <string name="manager_update_title">New Magisk Manager Update Available!</string>
     <string name="manager_download_install">Press to download and install</string>
+    <string name="magisk_updates">Magisk Updates</string>
 
     <!--Settings Activity -->
     <string name="settings_general_category">General</string>