show running status notification when started

Signed-off-by: Syrone Wong <[email protected]>

app/build.gradle

@@ -40,6 +40,7 @@ repositories {
 dependencies {
     implementation 'com.android.support:appcompat-v7:28.0.0'
     implementation 'com.android.support.constraint:constraint-layout:1.1.3'
+    implementation 'com.android.support:support-compat:28.0.0'
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'com.android.support.test:runner:1.0.2'
     androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'

app/src/main/java/io/github/trojan_gfw/igniter/MainActivity.java

@@ -2,18 +2,20 @@
 
 
 import android.app.Activity;
+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.net.VpnService;
+import android.os.Build;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
 import android.support.v4.content.LocalBroadcastManager;
 import android.support.v7.app.AppCompatActivity;
 import android.text.method.LinkMovementMethod;
 import android.view.Menu;
-import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.View;
 import android.widget.Button;
@@ -48,6 +50,33 @@ public class MainActivity extends AppCompatActivity {
 
     private BroadcastReceiver serviceStateReceiver;
 
+    private void createNotificationChannel(String channelId) {
+        // Create the NotificationChannel, but only on API 26+ because
+        // the NotificationChannel class is new and not in the support library
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            CharSequence name = getString(R.string.notification_channel_name);
+            String description = getString(R.string.notification_channel_description);
+            int importance = NotificationManager.IMPORTANCE_HIGH;
+            NotificationChannel channel = new NotificationChannel(channelId, name, importance);
+            channel.setDescription(description);
+            // Register the channel with the system; you can't change the importance
+            // or other notification behaviors after this
+            NotificationManager notificationManager = getSystemService(NotificationManager.class);
+            notificationManager.createNotificationChannel(channel);
+        }
+    }
+
+    private void destoryNotificationChannel(String channelId) {
+        // Create the NotificationChannel, but only on API 26+ because
+        // the NotificationChannel class is new and not in the support library
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            // Register the channel with the system; you can't change the importance
+            // or other notification behaviors after this
+            NotificationManager notificationManager = getSystemService(NotificationManager.class);
+            notificationManager.deleteNotificationChannel(channelId);
+        }
+    }
+
     private void copyRawResourceToDir(int resId, String destPathName, boolean override) {
         File file = new File(destPathName);
         if (override || !file.exists()) {
@@ -120,6 +149,7 @@ protected void onCreate(Bundle savedInstanceState) {
         startStopButton = findViewById(R.id.startStopButton);
 
         Globals.Init(this);
+        createNotificationChannel(getString(R.string.notification_channel_id));
 
         copyRawResourceToDir(R.raw.cacert, Globals.getCaCertPath(), true);
         copyRawResourceToDir(R.raw.country, Globals.getCountryMmdbPath(), true);

app/src/main/java/io/github/trojan_gfw/igniter/ProxyService.java

@@ -1,9 +1,12 @@
 package io.github.trojan_gfw.igniter;
 
+import android.app.PendingIntent;
 import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.net.VpnService;
 import android.os.ParcelFileDescriptor;
+import android.support.v4.app.NotificationCompat;
+import android.support.v4.app.NotificationManagerCompat;
 import android.support.v4.content.LocalBroadcastManager;
 import android.util.Log;
 
@@ -24,8 +27,10 @@ public class ProxyService extends VpnService {
     public static final int STOPPED = 3;
     public static final String STATUS_EXTRA_NAME = "service_state";
     public static final String CLASH_EXTRA_NAME = "enable_clash";
+    public static final int IGNITER_STATUS_NOTIFY_MSG_ID = 0;
     public long tun2socksPort;
     public boolean enable_clash = false;
+
     public static ProxyService getInstance() {
         return instance;
     }
@@ -178,8 +183,39 @@ public int onStartCommand(Intent intent, int flags, int startId) {
         Log.i("igniter", "tun2socks port is " + tun2socksPort);
         Tun2socks.start(fd, "127.0.0.1:" + tun2socksPort, "255.0.128.1", "255.0.143.254", VPN_MTU);
 
+        StringBuilder runningStatusStringBuilder = new StringBuilder();
+        runningStatusStringBuilder.append("Trojan SOCKS5 port: ")
+                .append(trojanPort)
+                .append("\n")
+                .append("Tun2socks port: ")
+                .append(tun2socksPort)
+                .append("\n");
+        if (enable_clash) {
+            runningStatusStringBuilder.append("Clash SOCKS listen port: ")
+                    .append(clashSocksPort)
+                    .append("\n");
+        }
+
         setState(STARTED);
 
+        NotificationManagerCompat notificationManager = NotificationManagerCompat.from(this);
+        Intent openMainActivityIntent = new Intent(this, MainActivity.class);
+        openMainActivityIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
+        PendingIntent pendingOpenMainActivityIntent = PendingIntent.getActivity(this, 0, openMainActivityIntent, 0);
+        String igniterRunningStatusStr = runningStatusStringBuilder.toString();
+        NotificationCompat.Builder builder = new NotificationCompat.Builder(this, getString(R.string.notification_channel_id))
+                .setSmallIcon(R.drawable.ic_launcher_foreground)
+                .setContentTitle("Igniter is running")
+                .setContentText(igniterRunningStatusStr)
+                .setStyle(new NotificationCompat.BigTextStyle()
+                        .bigText(igniterRunningStatusStr))
+                .setPriority(NotificationCompat.PRIORITY_HIGH)
+                // Set the intent that will fire when the user taps the notification
+                .setContentIntent(pendingOpenMainActivityIntent)
+                .setAutoCancel(false)
+                .setOngoing(true);
+        notificationManager.notify(IGNITER_STATUS_NOTIFY_MSG_ID, builder.build());
+
         return START_STICKY;
     }
 
@@ -192,6 +228,10 @@ private void shutdown() {
             Log.e("Clash", "clash stopped");
         }
         Tun2socks.stop();
+
+        NotificationManagerCompat notificationManager = NotificationManagerCompat.from(this);
+        notificationManager.cancel(IGNITER_STATUS_NOTIFY_MSG_ID);
+
         stopSelf();
 
         setState(STOPPED);

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

@@ -16,6 +16,9 @@
     <string name="connected_to__in__ms">Connected to %1$s in %2$sms.</string>
     <string name="failed_to_connect_to__">Failed to connect to %1$s: %2$s</string>
     <string name="invalid_configuration">Invalid Configuration</string>
+    <string name="notification_channel_id">igniter_notify_chan</string>
+    <string name="notification_channel_name">igniter_notify_channel</string>
+    <string name="notification_channel_description">Igniter notifications channel</string>
 
     <!-- App Bar Menu -->
     <string name="action_test_connection">Test Connection</string>