$ionicPlatform.ready( async () => {
        // configura locale do moment
        moment.locale( settings.locale );

        // configura rootScope
        $rootScope.isAndroid = ionic.Platform.isAndroid();  // Check platform of running device is android or not.
        $rootScope.isIOS = ionic.Platform.isIOS();          // Check platform of running device is ios or not.
        $rootScope.uiState = {
            loading: false,
            pendingRequests: 0,
            error: undefined
        };

        // We can now watch the trafficCop service to see when there are pending
        // HTTP requests that we're waiting for.
        let rootWatch = $rootScope.$watch( () => {
            $rootScope.uiState.pendingRequests = httpSnifferService.pending.all;
            $rootScope.uiState.loading = $rootScope.uiState.pendingRequests > 0;
            $rootScope.uiState.error = httpErrorSnifferService.error;
        } );

        $rootScope.$on( '$ionicView.beforeEnter', () => {
            httpErrorSnifferService.error = undefined;
        });

        // here is where the cleanup happens
        $rootScope.$on( '$destroy', () => rootWatch() );

        Keyboard.hideKeyboardAccessoryBar( true );
        Keyboard.disableScroll( true );

        // Check coarse location permissions
        cordovaPermissions.RequestCoarseLocationPermission();
    });

  constructor(private nav: NavController, navParams: NavParams, private messagesService: MessagesService) {
    this.messages = navParams.get('messages');
    this.messages = this.messages.reverse();
    this.clientName = navParams.get('clientName');

    this.groupByDay(this.messages);

    //scroll page to bottom on keyboard show
    Keyboard.onKeyboardShow().subscribe(
      data => {this.scrollBottom();}
    );

  }

 platform.ready().then(() => {
   // Okay, so the platform is ready and our plugins are available.
   // Here you can do any higher level native things you might need.
   //StatusBar.styleDefault();
   Keyboard.hideKeyboardAccessoryBar(false);
   if(navigator.onLine == false){
     console.log('disconnected')
   }
   StatusBar.show();
   StatusBar.overlaysWebView(false);
   StatusBar.styleLightContent();
   StatusBar.backgroundColorByHexString("#0288d1");
 });

 platform.ready().then(() => {
   // Okay, so the platform is ready and our plugins are available.
   // Here you can do any higher level native things you might need.
   StatusBar.backgroundColorByName('black');
   Keyboard.hideKeyboardAccessoryBar(false);
 });

 let onEnterPressed = ( $scope: any, value: string ) => {
   if ( $scope.vm.onEnterPressed ) {
     $scope.vm.onEnterPressed( value );
   }
   Keyboard.close();
 };