fix setNetworkReachable

AndroidManifest.xml

@@ -68,7 +68,8 @@
                 <action android:name="android.intent.action.MAIN" />
             </intent-filter>
          </activity>
-         <activity android:name=".VideoCallActivity" android:theme="@android:style/Theme.NoTitleBar.Fullscreen">
+         <activity android:name=".VideoCallActivity" android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
+         	android:screenOrientation="nosensor">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
             </intent-filter>

src/org/linphone/core/AndroidCameraRecord.java

@@ -183,9 +183,11 @@ public abstract class AndroidCameraRecord {
 
 
 	private static void stopPreview() {
-		camera.setPreviewCallback(null); // TODO check if used whatever the SDK version
-		camera.stopPreview();
-		camera.release();
+		if (camera!=null){
+			camera.setPreviewCallback(null); // TODO check if used whatever the SDK version
+			camera.stopPreview();
+			camera.release();
+		}
 		camera=null;
 		previewStarted = false;
 	}

src/org/linphone/core/AndroidVideoWindowImpl.java

@@ -80,3 +80,4 @@ public class AndroidVideoWindowImpl  {
 	}
 }
 
+

src/org/linphone/core/LinphoneCoreImpl.java

@@ -200,7 +200,7 @@ class LinphoneCoreImpl implements LinphoneCore {
 			throw new RuntimeException("object already destroyed");
 		}
 	}
-	public void setNetworkStateReachable(boolean isReachable) {
+	public void setNetworkReachable(boolean isReachable) {
 		setNetworkStateReachable(nativePtr,isReachable);
 	}
 	public void setPlaybackGain(float gain) {
@@ -415,8 +415,4 @@ class LinphoneCoreImpl implements LinphoneCore {
 		// TODO Auto-generated method stub
 		return false;
 	}
-	public void setNetworkReachable(boolean isReachable) {
-		// TODO Auto-generated method stub
-		
-	}
 }