Result from firebase is not been display in ionic view

hello all,
i have a code to display my information after i logged into firebase but it only out putted on the console log, thats not what i want i want to display the data in my ionic list view.

here is my controller code:

app.controller(‘LoginCtrl’, function($scope, $state, $ionicPopup, $firebaseAuth, $firebaseArray, $firebaseObject){
$scope.formData = {
“email”: “”,
“password”: “”
};
$scope.currentUserName ={};
$scope.currentUserImg ={};
var fb = new Firebase(“https://bigzill.firebaseio.com/”);

var fbAuth  = $firebaseAuth(fb);
$scope.login    = function(email, password){
    if(email && password){
        console.log("valid Form");
        fbAuth.$authWithPassword({
            email: email,
            password: password
        }).then(function(authData){
            var authData = fb.getAuth();
            var usersRef2  = new Firebase("https://bigzill.firebaseio.com/users/"+authData.uid);

            usersRef2.on("value", function(snapshot) {
              $scope.data = snapshot.val();
              // data equals { "name": { "first": "Fred", "last": "Flintstone" }, "age": 53 }
              //console.log($scope.data.username);  // "Fred"
              //console.log($scope.data.image_name);  // 53
              var SnapshotcurrentUserName    =snapshot.child("username");
              $scope.currentUserName = SnapshotcurrentUserName.val();
              console.log($scope.currentUserName);

              var SnapshotcurrentUserImg    =snapshot.child("image_name");
              $scope.currentUserImg = SnapshotcurrentUserImg.val();
              console.log($scope.currentUserImg);
            });
            $state.go('tab.home');
        }).catch(function(error){
            console.log("Error: " + error);
            $ionicPopup.alert({
                title: "Login Error",
                template: error
            });
        });
    }else{
        console.log("Invalid Form");
    }
}

});

HERE IS MY VIEW CODE:

{{currentUserName.username}}

helloe fine it

Please what am i doing wrong