Fix warnings

Author: firemaples

app/build.gradle

@@ -26,14 +26,17 @@ android {
             signingConfig signingConfigs.SignConfig
         }
     }
+    return void
 }
 
 dependencies {
     compile fileTree(dir: 'libs', include: ['*.jar'])
     compile 'com.github.hotchemi:permissionsdispatcher:2.1.3'
     apt 'com.github.hotchemi:permissionsdispatcher-processor:2.1.3'
     compile 'com.android.support:appcompat-v7:24.2.1'
+    //noinspection GradleDependency
     compile 'com.google.android.gms:play-services-location:9.4.0'
+    //noinspection GradleDependency
     compile 'com.google.android.gms:play-services-maps:9.4.0'
     compile 'org.apache.commons:commons-lang3:3.4'
 //    compile files('libs/Java-WebSocket-Library-1.2.1-SNAPSHOT.jar')

app/src/main/java/com/firemaples/androidlocationremotecontrol/MainActivity.java

@@ -31,12 +31,14 @@
 import java.math.BigInteger;
 import java.net.InetAddress;
 import java.net.UnknownHostException;
+import java.util.Locale;
 
 import permissions.dispatcher.NeedsPermission;
 import permissions.dispatcher.OnNeverAskAgain;
 import permissions.dispatcher.OnPermissionDenied;
 import permissions.dispatcher.RuntimePermissions;
 
+@SuppressWarnings({"unused", "FieldCanBeLocal"})
 @RuntimePermissions
 public class MainActivity extends AppCompatActivity implements OnMapReadyCallback {
     private final int REQUEST_CODE_REQUEST_LOCATION_PERMISSION = 101;
@@ -174,7 +176,7 @@ public void run() {
                             marker.setPosition(latLng);
                         }
                     }
-                    tv_position.setText(String.format(FORMAT_POSITION, lat, lng));
+                    tv_position.setText(String.format(Locale.getDefault(), FORMAT_POSITION, lat, lng));
                 }
             });
         }
@@ -328,7 +330,7 @@ protected void initGoogleMap() {
     class ShowConnectionInfoThread extends Thread {
         private final RemoteListenerService service;
 
-        public ShowConnectionInfoThread(RemoteListenerService service) {
+        ShowConnectionInfoThread(RemoteListenerService service) {
             this.service = service;
         }
 

app/src/main/java/com/firemaples/androidlocationremotecontrol/RemoteListenerService.java

@@ -12,6 +12,7 @@
 import android.os.Bundle;
 import android.os.IBinder;
 import android.os.SystemClock;
+import android.support.annotation.NonNull;
 import android.support.v4.app.ActivityCompat;
 import android.support.v4.app.NotificationCompat;
 
@@ -26,6 +27,7 @@
 import java.net.InetSocketAddress;
 import java.util.Date;
 
+@SuppressWarnings({"FieldCanBeLocal", "unused"})
 public class RemoteListenerService extends Service implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener {
     private final String MSG_GEO = "geo:";
 
@@ -292,8 +294,8 @@ public void onConnectionSuspended(int i) {
     }
 
     @Override
-    public void onConnectionFailed(ConnectionResult connectionResult) {
-        Utils.makeTestLog(this, "Google api :onConnectionFailed");
+    public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
+        Utils.makeTestLog(this, "Google api :onConnectionFailed:" + connectionResult.getErrorMessage());
     }
 
     public class RemoteListenerBinder extends Binder {