libSafeMobile/src/main/java/com/safemobile/activities/AbstractLiveActivity.java

@@ -25,6 +25,7 @@ public abstract class AbstractLiveActivity extends AppCompatActivity {
 	public abstract void vehicleStatusReceived(long imei, int opCode, int status);	// --> UpdateOptions
 	public abstract void emergencyAlarmReceived(int position, double lat, double lng);	// --> UpdateEmergencyAlarm
 	public abstract GoogleMap getMap();	// --> UpdateEmergencyAlarm
+	public abstract void setLanguage();
 
 	/** Misc */
 	public AbstractSDParentActivity getParentTab() {

safeDispatch/src/main/java/com/safemobile/safedispatch/HistoryActivity.java

@@ -132,6 +132,17 @@ public class HistoryActivity extends AppCompatActivity implements OnMapReadyCall
         setDate();
     }
 
+    public void setLanguage() {
+        TextView labelVehicle = findViewById(R.id.labelVehicle);
+        TextView labelStartDate = findViewById(R.id.labelStartDate);
+        TextView labelEndDate = findViewById(R.id.labelEndDate);
+
+        labelVehicle.setText(R.string.vehicle);
+        labelStartDate.setText(R.string.startDate);
+        labelEndDate.setText(R.string.endDate);
+        displayButton.setText(R.string.display);
+    }
+
     private void displayHistory(ArrayList<HistPos> positions) {
         LatLng latLng = null;
         PolylineOptions polylineOptions = new PolylineOptions();

safeDispatch/src/main/java/com/safemobile/safedispatch/LiveActivity.java

@@ -296,6 +296,11 @@ public class LiveActivity extends AbstractLiveActivity implements OnMapReadyCall
         registerBroadcastIntents();
     }
 
+    public void setLanguage() {
+        TextView textView = findViewById(R.id.unit_name);
+        textView.setText(R.string.unitName);
+    }
+
     /**
      * Manipulates the map once available.
      * This callback is triggered when the map is ready to be used.

safeDispatch/src/main/java/com/safemobile/safedispatch/TabLayoutActivity.java

@@ -732,12 +732,13 @@ public class TabLayoutActivity extends AbstractSDParentActivity {
 		// recreate UI
 		Locale locale = new Locale(AppParams.LANGUAGETMP);
 		Locale.setDefault(locale);
-		android.content.res.Configuration configuration = new android.content.res.Configuration();
+		setLocale(getLiveActivity(), locale);
-		configuration.locale = locale;
-		getBaseContext().getResources().updateConfiguration(configuration,
-				getBaseContext().getResources().getDisplayMetrics());
 
 		// change UI for RadioActivity and MessageActivity
+		if (getLiveActivity() != null)
+			getLiveActivity().setLanguage();
+		if (getHistoryActivity() != null)
+			getHistoryActivity().setLanguage();
 		if (getRadioActivity() != null)
 			getRadioActivity().onCreate(getRadioActivity().savedInstanceState);
 		if (getMessageActivity() != null)
@@ -748,6 +749,13 @@ public class TabLayoutActivity extends AbstractSDParentActivity {
 			getAlarmActivity().onCreate(getAlarmActivity().getSavedInstanceState());
 	}
 
+	public static void setLocale(Activity activity, Locale locale) {
+		Resources resources = activity.getResources();
+		Configuration config = resources.getConfiguration();
+		config.setLocale(locale);
+		resources.updateConfiguration(config, resources.getDisplayMetrics());
+	}
+
 	//timer stuff
 	private void timerMethod() {
 		if (!AppParams.DEMO)

safeDispatch/src/main/res/layout/style_header_units.xml

@@ -10,6 +10,7 @@
 	    android:gravity="center_vertical" >
 	   
 	    <TextView
+			android:id="@+id/unit_name"
 	        android:layout_width="fill_parent"
 	        android:layout_height="wrap_content"
 	        android:text="@string/unitName"