Clean up Impress remove client source code a bit.

* Remove unnecessary semicolons.
* Remove empty methods that only call super methods.
* Replace String concatenation with StringBuilder.
* Fix possible NullPointerException on String comparison.
* Remove TODO comments generated via IDE.

Change-Id: Id2d2ebd29386080715fd743f81fbfae3a4a0a5ce
Reviewed-on: https://gerrit.libreoffice.org/2915Reviewed-by: Chris Sherlock <chris.sherlock79@gmail.com>
Reviewed-by: Michael Meeks <michael.meeks@suse.com>
Tested-by: Michael Meeks <michael.meeks@suse.com>

android/sdremote/src/org/libreoffice/impressremote/BlankScreenFragment.java

@@ -75,7 +75,6 @@ public class BlankScreenFragment extends SherlockFragment {
                         aListener);
         v.findViewById(R.id.blankscreen_return).setOnClickListener(aListener);
         mCommunicationService.getTransmitter().blankScreen();
-        // TODO Auto-generated method stub
         return v;
     }
 

android/sdremote/src/org/libreoffice/impressremote/PresentationActivity.java

@@ -529,12 +529,6 @@ public class PresentationActivity extends SherlockFragmentActivity {
             mActionBarManager.hidePopups();
             return super.onInterceptTouchEvent(aEvent);
         }
-
-        @Override
-        public boolean onTouchEvent(MotionEvent aEvent) {
-            return super.onTouchEvent(aEvent);
-        }
-
     }
 
     private BroadcastReceiver mListener = new BroadcastReceiver() {

android/sdremote/src/org/libreoffice/impressremote/SelectorActivity.java

@@ -171,7 +171,6 @@ public class SelectorActivity extends SherlockActivity {
 
     @Override
     protected void onPause() {
-        // TODO Auto-generated method stub
         super.onPause();
         if (mCommunicationService != null) {
             mCommunicationService.stopSearching();

android/sdremote/src/org/libreoffice/impressremote/SettingsActivity.java

@@ -18,7 +18,6 @@ public class SettingsActivity extends SherlockPreferenceActivity {
     // but build with sdk 15
     @Override
     protected void onCreate(Bundle savedInstanceState) {
-        // TODO Auto-generated method stub
         super.onCreate(savedInstanceState);
         getSupportActionBar().setDisplayHomeAsUpEnabled(true);
         addPreferencesFromResource(R.xml.preferences);

android/sdremote/src/org/libreoffice/impressremote/ThumbnailFragment.java

@@ -82,17 +82,6 @@ public class ThumbnailFragment extends SherlockFragment {
         mCurrentText = null;
     }
 
-    @Override
-    public void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-
-    }
-
-    @Override
-    public void onPause() {
-        super.onPause();
-    }
-
     private void setSelected(int position) {
         formatUnselected(mCurrentImage, mCurrentText);
 

android/sdremote/src/org/libreoffice/impressremote/communication/Client.java

@@ -58,7 +58,7 @@ public abstract class Client {
         Thread t = new Thread() {
             public void run() {
                 listen();
-            };
+            }
 
         };
         t.start();

android/sdremote/src/org/libreoffice/impressremote/communication/CommunicationService.java

@@ -33,7 +33,7 @@ public class CommunicationService extends Service implements Runnable {
 
     public enum State {
         DISCONNECTED, SEARCHING, CONNECTING, CONNECTED
-    };
+    }
 
     /**
      * Get the publicly visible device name -- generally the bluetooth name,

android/sdremote/src/org/libreoffice/impressremote/communication/Receiver.java

@@ -99,13 +99,13 @@ public class Receiver {
                 }
             } else if (aInstruction.equals("slide_notes")) {
                 int aSlideNumber = Integer.parseInt(aCommand.get(1));
-                String aNotes = new String();
+                StringBuilder aNotes = new StringBuilder();
                 for (int i = 2; i < aCommand.size(); i++) {
-                    aNotes += aCommand.get(i);
+                    aNotes.append(aCommand.get(i));
                 }
 
                 // Store image internally
-                mSlideShow.putNotes(aSlideNumber, aNotes);
+                mSlideShow.putNotes(aSlideNumber, aNotes.toString());
 
                 Intent aIntent = new Intent(
                                 CommunicationService.MSG_SLIDE_NOTES);

android/sdremote/src/org/libreoffice/impressremote/communication/Server.java

@@ -12,7 +12,7 @@ public class Server {
 
     public enum Protocol {
         NETWORK, BLUETOOTH
-    };
+    }
 
     private Protocol mProtocol;
     private String mAddress;

android/sdremote/src/org/libreoffice/impressremote/communication/ServerFinder.java

@@ -63,7 +63,7 @@ public class ServerFinder {
                     break;
                 }
             }
-            if (i == aBuffer.length || !aCommand.equals("LOREMOTE_ADVERTISE")) {
+            if (i == aBuffer.length || !"LOREMOTE_ADVERTISE".equals(aCommand)) {
                 return;
             }
             for (int j = i + 1; j < aBuffer.length; j++) {