List all listening network interfaces

README.md

@@ -8,7 +8,7 @@ device and receive an audio stream.
 
 The project is a fork of _Protect Baby Monitor_ which is declared as "on hiatus" by its developer.
 
-_Child Monitor_ works on Android 4.4 (KitKat) and newer, i.e. Android SDK 19.
+_Child Monitor_ works on Android 5.0 (Lollipop) and newer, i.e. Android SDK 21.
 
 The current version of _Child Monitor_ is rudimentary at best. It is capable
 of successfully advertising itself on the network, allows clients to connect,

app/build.gradle

@@ -11,7 +11,7 @@ android {
 
     defaultConfig {
         applicationId "child.monitor"
-        minSdkVersion 19
+        minSdkVersion 21
         targetSdkVersion 26
         versionCode 4
         versionName "0.4"

app/src/main/AndroidManifest.xml

@@ -4,6 +4,7 @@
     android:versionCode="2"
     android:versionName="0.2" >
 
+    <uses-permission android:required="true" android:name="android.permission.ACCESS_NETWORK_STATE" />
     <uses-permission android:required="true" android:name="android.permission.INTERNET"/>
     <uses-permission android:required="true" android:name="android.permission.RECORD_AUDIO"/>
     <uses-permission android:required="true" android:name="android.permission.ACCESS_WIFI_STATE"/>

app/src/main/java/de/rochefort/childmonitor/MonitorActivity.java

@@ -18,20 +18,24 @@ package de.rochefort.childmonitor;
 
 import java.io.IOException;
 import java.io.OutputStream;
+import java.net.InetAddress;
 import java.net.ServerSocket;
 import java.net.Socket;
+import java.util.ArrayList;
+import java.util.List;
 import java.util.Objects;
 
 import android.app.Activity;
 import android.content.Context;
 import android.media.AudioRecord;
 import android.media.MediaRecorder;
+import android.net.ConnectivityManager;
+import android.net.LinkAddress;
+import android.net.Network;
+import android.net.NetworkInfo;
 import android.net.nsd.NsdManager;
 import android.net.nsd.NsdServiceInfo;
-import android.net.wifi.WifiInfo;
-import android.net.wifi.WifiManager;
 import android.os.Bundle;
-import android.text.format.Formatter;
 import android.util.Log;
 import android.widget.TextView;
 
@@ -138,23 +142,47 @@ public class MonitorActivity extends Activity {
             }
         }).start();
 
-        final TextView addressText = (TextView) findViewById(R.id.address);
+        final TextView addressText = findViewById(R.id.address);
 
-        // Use the application context to get WifiManager, to avoid leak before Android 5.1
+        List<String> listenAddresses = getListenAddresses();
-        final WifiManager wifiManager =
+        if(!listenAddresses.isEmpty()) {
-                (WifiManager) getApplicationContext().getSystemService(WIFI_SERVICE);
+            StringBuilder sb = new StringBuilder();
-        final WifiInfo info = wifiManager.getConnectionInfo();
+            for (int i = 0; i < listenAddresses.size(); i++) {
-        final int address = info.getIpAddress();
+                String listenAddress = listenAddresses.get(i);
-        if(address != 0) {
+                sb.append(listenAddress);
-            @SuppressWarnings("deprecation")
+                if (i != listenAddresses.size() -1) {
-            final String ipAddress = Formatter.formatIpAddress(address);
+                    sb.append("\n\n");
-            addressText.setText(ipAddress);
+                }
+            }
+            addressText.setText(sb.toString());
         } else {
-            addressText.setText(R.string.wifiNotConnected);
+            addressText.setText(R.string.notConnected);
         }
 
     }
 
+    private List<String> getListenAddresses() {
+        String service = Context.CONNECTIVITY_SERVICE;
+        ConnectivityManager cm = (ConnectivityManager)getSystemService(service);
+        List<String> listenAddresses = new ArrayList<>();
+        if (cm != null) {
+            for (Network network : cm.getAllNetworks()) {
+                NetworkInfo networkInfo = cm.getNetworkInfo(network);
+                boolean connected = networkInfo.isConnected();
+                if (connected) {
+                    List<LinkAddress> linkAddresses = cm.getLinkProperties(network).getLinkAddresses();
+                    for (LinkAddress linkAddress : linkAddresses) {
+                        InetAddress address = linkAddress.getAddress();
+                        if (!address.isLinkLocalAddress() && !address.isLoopbackAddress()) {
+                            listenAddresses.add(address.getHostAddress() + " (" + networkInfo.getTypeName() + ")");
+                        }
+                    }
+                }
+            }
+        }
+        return listenAddresses;
+    }
+
     @Override
     protected void onDestroy() {
         Log.i(TAG, "ChildMonitor stop");

app/src/main/res/layout/activity_monitor.xml

@@ -23,6 +23,19 @@
         android:layout_width="match_parent"
         android:layout_height="15dip" />
 
+    <ScrollView
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:fillViewport="true">
+
+        <LinearLayout
+            android:id="@+id/LinearLayout2"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="vertical"
+            android:keepScreenOn="true"
+            tools:context="de.rochefort.childmonitor.MonitorActivity" >
+
             <TextView
                 android:id="@+id/serviceTitle"
                 android:layout_width="wrap_content"
@@ -47,19 +60,9 @@
                 android:layout_width="match_parent"
                 android:layout_height="15dip" />
 
-    <TextView
+            <Space
-        android:id="@+id/addressTitle"
+                android:layout_width="match_parent"
-        android:layout_width="wrap_content"
+                android:layout_height="15dip" />
-        android:layout_height="wrap_content"
-        android:text="@string/addressTitle"
-        android:textSize="20sp" />
-
-    <TextView
-        android:id="@+id/address"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text=""
-        android:textSize="20sp"/>
 
             <TextView
                 android:id="@+id/portTitle"
@@ -75,11 +78,27 @@
                 android:text="@string/loading"
                 android:textSize="20sp"/>
 
+            <Space
+                android:layout_width="match_parent"
+                android:layout_height="15dip" />
+
             <TextView
-        android:id="@+id/addressDescription"
+                android:id="@+id/addressTitle"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
-        android:text="@string/addressDescription" />
+                android:text="@string/addressTitle"
+                android:textSize="20sp" />
+
+            <Space
+                android:layout_width="match_parent"
+                android:layout_height="15dip" />
+
+            <TextView
+                android:id="@+id/address"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:text=""
+                android:textSize="15sp"/>
 
             <Space
                 android:layout_width="match_parent"
@@ -91,5 +110,8 @@
                 android:layout_height="wrap_content"
                 android:text=""
                 android:textSize="20sp" />
+        </LinearLayout>
+
+    </ScrollView>
 
 </LinearLayout>

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

@@ -20,10 +20,9 @@
     <string name="connectedTo">Verbunden mit:</string>
     <string name="disconnected">Getrennt</string>
     <string name="listening">Lausche...</string>
-    <string name="addressTitle">Adresse:</string>
+    <string name="addressTitle">Adressen:</string>
     <string name="portTitle">Port:</string>
-    <string name="addressDescription">Adresse und Port zum Koppeln mit Eltern</string>
+    <string name="notConnected">Mit keinem Netzwerk verbunden</string>
-    <string name="wifiNotConnected">Nicht mit WLAN-Netzwerk verbunden</string>
     <string name="enterAddressInstructions">Gib die IP-Adresse und den Port des Kind-Gerätes ein und klicke auf Verbinden</string>
     <string name="connect">Verbinden</string>
     <string name="exampleAddress">192.168.1.2</string>

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

@@ -22,8 +22,7 @@
     <string name="listening">リスニング中...</string>
     <string name="addressTitle">アドレス:</string>
     <string name="portTitle">ポート:</string>
-    <string name="addressDescription">親機がペアにする先のアドレスとポート</string>
+    <string name="notConnected">ネットワークに接続されていません</string>
-    <string name="wifiNotConnected">Wi-Fi ネットワークに接続されていません</string>
     <string name="enterAddressInstructions">子機の IP アドレスとポートを入力して、接続をクリックしてください</string>
     <string name="connect">接続</string>
     <string name="exampleAddress">192.168.1.2</string>

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

@@ -20,10 +20,9 @@
     <string name="connectedTo">Verbonden met:</string>
     <string name="disconnected">Verbinding verbroken</string>
     <string name="listening">Bezig met luisteren...</string>
-    <string name="addressTitle">Adres:</string>
+    <string name="addressTitle">Adressen:</string>
     <string name="portTitle">Poort:</string>
-    <string name="addressDescription">Adres en poort waar de ouder mee moet verbinden</string>
+    <string name="notConnected">Niet verbonden met een netwerk</string>
-    <string name="wifiNotConnected">Niet verbonden met een Wi-Fi-netwerk</string>
     <string name="enterAddressInstructions">Voer het IP-adres en de poort van een kindapparaat in en druk op Verbinden</string>
     <string name="connect">Verbinden</string>
     <string name="exampleAddress">192.168.1.2</string>

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

@@ -20,10 +20,9 @@
     <string name="connectedTo">Connected To:</string>
     <string name="disconnected">Disconnected</string>
     <string name="listening">Listening...</string>
-    <string name="addressTitle">Address:</string>
+    <string name="addressTitle">Addresses:</string>
     <string name="portTitle">Port:</string>
-    <string name="addressDescription">Address and port that parent must pair to</string>
+    <string name="notConnected">Not connected to any network</string>
-    <string name="wifiNotConnected">Not connected to a Wi-Fi network</string>
     <string name="enterAddressInstructions">Enter the IP Address and port of a child and click Connect</string>
     <string name="connect">Connect</string>
     <string name="exampleAddress">192.168.1.2</string>