Added option to pause playback on incoming call (enabled by default).

AndroidManifest.xml

@@ -8,7 +8,8 @@
 	<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
 	<uses-permission android:name="android.permission.CHANGE_WIFI_STATE"/>
 	<uses-permission android:name="android.permission.CHANGE_WIFI_MULTICAST_STATE"/>
-	<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
+    <uses-permission android:name="android.permission.READ_PHONE_STATE"/>
 
     <uses-sdk
         android:minSdkVersion="8"

README.md

@@ -10,7 +10,7 @@ Android 2.2 (Gingerbread) or higher is required.
 
 [Download](http://f-droid.org/repository/browse/?fdid=com.github.nutomic.controldlna)
 
-Note about permissions: All permissions are required for UPNP (for the necessary wifi access). The app does not connect to the internet at all.
+Permissions: READ_PHONE_STATE is required to pause playback on phone call. All other permissions are required for UPnP functionality. ControlDLNA does not access the internet.
 
 ## Building
 

res/values/strings.xml

@@ -43,6 +43,9 @@
 	<!-- Title for the SettingsActivity -->
 	<string name="settings_title">Preferences</string>
 
+    <!-- Title for the pause playback on call preference -->
+    <string name="incoming_phone_call_pause">Pause playback on incoming phone call</string>
+	
 	<!-- Title for the contact developer preference -->
 	<string name="contact_dev_title">Contact Developer</string>
 	

res/xml/preferences.xml

@@ -1,6 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android">
 
+    <CheckBoxPreference
+        android:key="incoming_phone_call_pause"
+        android:title="@string/incoming_phone_call_pause"
+        android:defaultValue="true" />
+
     <Preference
         android:key="contact_dev"
         android:title="@string/contact_dev_title" />

src/com/github/nutomic/controldlna/gui/PreferencesActivity.java

@@ -41,6 +41,7 @@ import com.github.nutomic.controldlna.R;
 
 public class PreferencesActivity extends PreferenceActivity {
 
+    public static final String KEY_INCOMING_PHONE_CALL_PAUSE = "incoming_phone_call_pause";
     private static final String KEY_CONTACT_DEV = "contact_dev";
 
     private Preference mContactDev;

src/com/github/nutomic/controldlna/mediarouter/MediaRouterPlayService.java

@@ -41,12 +41,14 @@ import org.teleal.cling.support.model.item.MusicTrack;
 import android.app.Notification;
 import android.app.PendingIntent;
 import android.app.Service;
+import android.content.Context;
 import android.content.Intent;
 import android.graphics.Bitmap;
 import android.net.Uri;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.IBinder;
+import android.preference.PreferenceManager;
 import android.support.v4.app.NotificationCompat;
 import android.support.v7.media.MediaControlIntent;
 import android.support.v7.media.MediaItemStatus;
@@ -54,10 +56,13 @@ import android.support.v7.media.MediaRouteSelector;
 import android.support.v7.media.MediaRouter;
 import android.support.v7.media.MediaRouter.ControlRequestCallback;
 import android.support.v7.media.MediaRouter.RouteInfo;
+import android.telephony.PhoneStateListener;
+import android.telephony.TelephonyManager;
 import android.util.Log;
 
 import com.github.nutomic.controldlna.R;
 import com.github.nutomic.controldlna.gui.MainActivity;
+import com.github.nutomic.controldlna.gui.PreferencesActivity;
 import com.github.nutomic.controldlna.gui.RouteFragment;
 import com.github.nutomic.controldlna.utility.LoadImageTask;
 
@@ -144,7 +149,7 @@ public class MediaRouterPlayService extends Service {
 			intent.setAction("showRouteFragment");
 			Notification notification = new NotificationCompat.Builder(MediaRouterPlayService.this)
 			.setContentIntent(PendingIntent.getActivity(MediaRouterPlayService.this, 0,
-					intent, 0))
+                    intent, 0))
 					.setContentTitle(title)
 					.setContentText(artist)
 					.setLargeIcon(result)
@@ -156,11 +161,47 @@ public class MediaRouterPlayService extends Service {
 
 	}
 
+    /**
+     * Listens for incoming phone calls and pauses playback then.
+     */
+    private class PhoneCallListener extends PhoneStateListener {
+
+        private boolean mPausedForCall = false;
+
+        @Override
+        public void onCallStateChanged(int state, String incomingNumber) {
+
+            if (!PreferenceManager.getDefaultSharedPreferences(MediaRouterPlayService.this)
+                    .getBoolean(PreferencesActivity.KEY_INCOMING_PHONE_CALL_PAUSE, true)) {
+                return;
+            }
+
+            if (TelephonyManager.CALL_STATE_RINGING == state ||
+                    TelephonyManager.CALL_STATE_OFFHOOK == state) {
+                // phone ringing or call active
+                pause();
+                mPausedForCall = true;
+            }
+
+            if (mPausedForCall && TelephonyManager.CALL_STATE_IDLE == state) {
+                // run when class initial and phone call ended
+                resume();
+                mPausedForCall = false;
+            }
+        }
+    }
+
 	@Override
 	public void onCreate() {
 		super.onCreate();
 		mMediaRouter = MediaRouter.getInstance(this);
 		pollStatus();
+
+        PhoneCallListener phoneListener = new PhoneCallListener();
+        TelephonyManager telephonyManager = (TelephonyManager) this
+                .getSystemService(Context.TELEPHONY_SERVICE);
+        telephonyManager.listen(phoneListener,
+                PhoneStateListener.LISTEN_CALL_STATE);
 	}
 
 	@Override