Fix crashes on network change.

src/org/linphone/LinphoneActivity.java

@@ -106,7 +106,7 @@ public class LinphoneActivity extends TabActivity  {
 		instance = this;
 		setContentView(R.layout.main);
 
-		LinphonePreferenceManager.setContext(this);
+		LinphonePreferenceManager.getInstance(this);
 		useFirstLoginActivity = getResources().getBoolean(R.bool.useFirstLoginActivity);
 		useMenuSettings = getResources().getBoolean(R.bool.useMenuSettings);
 		useMenuAbout = getResources().getBoolean(R.bool.useMenuAbout);

src/org/linphone/LinphoneManager.java

@@ -112,7 +112,7 @@ public final class LinphoneManager implements LinphoneCoreListener {
 	private LinphoneCore mLc;
 	private int mPhoneOrientation;
 	private static Transports initialTransports;
-	private static LinphonePreferenceManager lpm = LinphonePreferenceManager.getInstance();
+	private static LinphonePreferenceManager lpm;
 
 
 	
@@ -123,6 +123,7 @@ public final class LinphoneManager implements LinphoneCoreListener {
 		ringSoundFile = basePath + "/oldphone_mono.wav"; 
 		ringbackSoundFile = basePath + "/ringback.wav";
 
+		lpm = LinphonePreferenceManager.getInstance(c);
 		mAudioManager = ((AudioManager) c.getSystemService(Context.AUDIO_SERVICE));
 		mVibrator = (Vibrator) c.getSystemService(Context.VIBRATOR_SERVICE);
 		mPref = PreferenceManager.getDefaultSharedPreferences(c);

src/org/linphone/LinphonePreferenceManager.java

@@ -15,7 +15,7 @@ GNU General Public License for more details.
 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
-*/
+ */
 package org.linphone;
 
 import android.content.Context;
@@ -25,10 +25,11 @@ import android.preference.PreferenceManager;
 public class LinphonePreferenceManager {
 
 	private static LinphonePreferenceManager instance;
-	private static Context c;
-	private static SharedPreferences p;
+	private Context c;
+	private SharedPreferences p;
 
-	public LinphonePreferenceManager() {
+	public LinphonePreferenceManager(Context context) {
+		c = context.getApplicationContext();
 		p = PreferenceManager.getDefaultSharedPreferences(c);
 	}
 
@@ -37,13 +38,10 @@ public class LinphonePreferenceManager {
 	}
 
 	public static final synchronized LinphonePreferenceManager getInstance() {
-		if (c == null) throw new RuntimeException("need a context");
-		if (instance == null) instance = new LinphonePreferenceManager();
-		return instance;
+		if (instance == null) {
+			throw new RuntimeException("LinphonePreferenceManager not instanciated");
 		}
-
-	public static final void setContext(Context context) {
-		c = context.getApplicationContext();
+		return instance;
 	}
 
 
@@ -65,4 +63,12 @@ public class LinphonePreferenceManager {
 	public int useSpecificAudioModeHack() {
 		return Integer.parseInt(p.getString(getString(R.string.pref_audio_use_specific_mode_key), "0"));
 	}
+
+	public static final synchronized LinphonePreferenceManager getInstance(Context c) {
+		if (instance == null) {
+			instance = new LinphonePreferenceManager(c.getApplicationContext());
+		}
+		return instance;
+	}
+
 }

src/org/linphone/LinphoneService.java

@@ -100,7 +100,8 @@ public final class LinphoneService extends Service implements LinphoneServiceLis
 		super.onCreate();
 		instance = this;
 		
-		LinphonePreferenceManager.setContext(this); // In case restart after a crash . Main in LinphoneActivity
+		// In case restart after a crash. Main in LinphoneActivity
+		LinphonePreferenceManager.getInstance(this);
 
 		// Set default preferences
 		PreferenceManager.setDefaultValues(this, R.xml.preferences, true);