Bluetooth headset support thanks to Doğancan Kefeli

AndroidManifest.xml

@@ -19,6 +19,9 @@
 	<uses-permission android:name="android.permission.CAMERA" />
 	<uses-permission android:name="android.permission.READ_LOGS" />
 	<uses-permission android:name="android.permission.READ_PHONE_STATE" />
+	<!-- Needed to use bluetooth headset -->
+	<uses-permission android:name="android.permission.BLUETOOTH"/>
+	<uses-permission android:name="android.permission.BROADCAST_STICKY"/>
 	
 	<supports-screens android:smallScreens="true" android:normalScreens="true" android:largeScreens="true" android:xlargeScreens="true" android:anyDensity="true"/>
     

res/values/non_localizable_strings.xml

@@ -45,6 +45,7 @@
     <string name="first_launch_suceeded_once_key">first_launch_suceeded_once_key</string>
 
     <string name="pref_wifi_only_key">pref_wifi_only_key</string>
+    <string name="pref_use_bluetooth_if_available_key">pref_use_bluetooth_if_available_key</string>
         
     <string name="pref_video_use_front_camera_key">pref_video_use_front_camera_key</string>
     <string name="pref_video_codec_h263_key">pref_video_codec_h263_key</string>

res/values/strings.xml

@@ -240,6 +240,8 @@
 	<string name="pref_sipaccounts">SIP Accounts</string>
 	
 	<string name="pref_wifi_only">Use wifi only</string>
+    <string name="pref_use_bluetooth_if_available">Use bluetooth headset</string>
+    <string name="pref_use_bluetooth_if_available_summary">Route incoming audio to bluetooth headset if available.</string>
 	
 	<string name="wizard_failed">An error occurred, try again later.</string>
 	<string name="wizard_server_unavailable">Server unreachable, verify your internet connection.</string>

res/xml/preferences.xml

@@ -56,6 +56,10 @@
 
 
 	<PreferenceCategory android:title="@string/pref_audio">
+	    <CheckBoxPreference android:key="@string/pref_use_bluetooth_if_available_key"
+	     android:defaultValue="true"
+		 android:title="@string/pref_use_bluetooth_if_available" android:summary="@string/pref_use_bluetooth_if_available_summary"/>
+	    
 		<CheckBoxPreference android:key="@string/pref_echo_limiter_key"
 		 android:title="@string/pref_echo_limiter" android:summary="@string/pref_echo_limiter_summary"/>
 

src/org/linphone/LinphoneManager.java

@@ -49,6 +49,7 @@ import java.util.TimerTask;
 import org.linphone.LinphoneSimpleListener.LinphoneOnAudioChangedListener;
 import org.linphone.LinphoneSimpleListener.LinphoneOnAudioChangedListener.AudioState;
 import org.linphone.LinphoneSimpleListener.LinphoneServiceListener;
+import org.linphone.compatibility.Compatibility;
 import org.linphone.core.CallDirection;
 import org.linphone.core.LinphoneAddress;
 import org.linphone.core.LinphoneAuthInfo;
@@ -195,33 +196,37 @@ public final class LinphoneManager implements LinphoneCoreListener {
 	private  BroadcastReceiver mKeepAliveReceiver = new KeepAliveReceiver();
 
 	private native void hackSpeakerState(boolean speakerOn);
-	private static void sRouteAudioToSpeakerHelperHelper(boolean speakerOn) {
+	private static void sRouteAudioToSpeakerOrBluetoothHelper(boolean speakerOn) {
-		getInstance().routeAudioToSpeakerHelperHelper(speakerOn);
+		getInstance().routeAudioToSpeakerOrBluetoothHelper(speakerOn);
 	}
 	@SuppressWarnings("deprecation")
-	private void routeAudioToSpeakerHelperHelper(boolean speakerOn) {
+	private void routeAudioToSpeakerOrBluetoothHelper(boolean speakerOn) {
 		boolean different = isSpeakerOn() ^ speakerOn;
 		if (!different) {
 			Log.d("Skipping change audio route by the same route ",
 					speakerOn ? "speaker" : "earpiece");
 			return;
 		}
-		if (Hacks.needGalaxySAudioHack() || sLPref.useGalaxySHack())
+		if (mPref.getBoolean(getString(R.string.pref_use_bluetooth_if_available), true) && Compatibility.enableBluetoothHeadset(mAudioManager)) {
-			setAudioModeIncallForGalaxyS();
+			return;
-
-		if (sLPref.useSpecificAudioModeHack() != -1)
-			mAudioManager.setMode(sLPref.useSpecificAudioModeHack());
-
-		if (Hacks.needRoutingAPI() || sLPref.useAudioRoutingAPIHack()) {
-			mAudioManager.setRouting(
-					MODE_NORMAL,
-					speakerOn? ROUTE_SPEAKER : ROUTE_EARPIECE,
-					AudioManager.ROUTE_ALL);
 		} else {
-			mAudioManager.setSpeakerphoneOn(speakerOn); 
+			if (Hacks.needGalaxySAudioHack() || sLPref.useGalaxySHack())
-		}
+				setAudioModeIncallForGalaxyS();
-		for (LinphoneOnAudioChangedListener listener : getSimpleListeners(LinphoneOnAudioChangedListener.class)) {
+	
-			listener.onAudioStateChanged(speakerOn ? AudioState.SPEAKER : AudioState.EARPIECE);
+			if (sLPref.useSpecificAudioModeHack() != -1)
+				mAudioManager.setMode(sLPref.useSpecificAudioModeHack());
+	
+			if (Hacks.needRoutingAPI() || sLPref.useAudioRoutingAPIHack()) {
+				mAudioManager.setRouting(
+						MODE_NORMAL,
+						speakerOn? ROUTE_SPEAKER : ROUTE_EARPIECE,
+						AudioManager.ROUTE_ALL);
+			} else {
+				mAudioManager.setSpeakerphoneOn(speakerOn); 
+			}
+			for (LinphoneOnAudioChangedListener listener : getSimpleListeners(LinphoneOnAudioChangedListener.class)) {
+				listener.onAudioStateChanged(speakerOn ? AudioState.SPEAKER : AudioState.EARPIECE);
+			}
 		}
 	}
 	private synchronized void routeAudioToSpeakerHelper(boolean speakerOn) {
@@ -230,7 +235,7 @@ public final class LinphoneManager implements LinphoneCoreListener {
 			Log.d("Hack to have speaker=",speakerOn," while on call");
 			hackSpeakerState(speakerOn);
 		} else {
-			routeAudioToSpeakerHelperHelper(speakerOn);
+			routeAudioToSpeakerOrBluetoothHelper(speakerOn);
 		}
 	}
 

src/org/linphone/PreferencesActivity.java

@@ -28,6 +28,7 @@ import static org.linphone.R.string.pref_echo_cancellation_key;
 import static org.linphone.R.string.pref_echo_canceller_calibration_key;
 import static org.linphone.R.string.pref_echo_limiter_key;
 import static org.linphone.R.string.pref_media_encryption_key;
+import static org.linphone.R.string.pref_use_bluetooth_if_available_key;
 import static org.linphone.R.string.pref_video_enable_key;
 
 import java.util.ArrayList;
@@ -259,6 +260,10 @@ public class PreferencesActivity extends LinphonePreferencesActivity implements
 		}
 		findPreference(pref_echo_limiter_key).setEnabled(true);
 		
+		if (!Version.sdkAboveOrEqual(8)) {
+			uncheckAndDisableCheckbox(pref_use_bluetooth_if_available_key);
+		}
+
 		initializeMediaEncryptionPreferences();
 	
 		detectAudioCodec(pref_codec_amr_key,"AMR", 8000, false);

src/org/linphone/compatibility/ApiEightPlus.java

@@ -1,6 +1,7 @@
 package org.linphone.compatibility;
 
 import android.annotation.TargetApi;
+import android.media.AudioManager;
 import android.view.Display;
 
 /*
@@ -30,4 +31,14 @@ public class ApiEightPlus {
 	public static int getRotation(Display display) {
 		return display.getRotation();
 	}
+	
+	public static boolean enableBluetoothHeadset(AudioManager mAudioManager) {
+		if (mAudioManager.isBluetoothScoAvailableOffCall()){
+			mAudioManager.setBluetoothScoOn(true);	
+			mAudioManager.setMode(AudioManager.MODE_IN_CALL);
+			mAudioManager.startBluetoothSco();
+			return true;
+		}
+		return false;
+	}
 }

src/org/linphone/compatibility/Compatibility.java

@@ -32,6 +32,7 @@ import android.content.Context;
 import android.content.Intent;
 import android.database.Cursor;
 import android.graphics.Bitmap;
+import android.media.AudioManager;
 import android.net.Uri;
 import android.view.Display;
 import android.view.Window;
@@ -183,4 +184,11 @@ public class Compatibility {
 			ApiFivePlus.setFullScreen(window);
 		}
 	}
+	
+	public static boolean enableBluetoothHeadset(AudioManager mAudioManager) {
+		if (Version.sdkAboveOrEqual(8)) {
+			return ApiEightPlus.enableBluetoothHeadset(mAudioManager);
+		}
+		return false;
+	}
 }