CODEWITHSUNDEEP
javascriptjqueryhtmlangularjs
Manojkanth
Manojkanth

Reputation: 1169

Change Image when Page Refresh in angularJS

This is on of tough task that am facing in my school. am totally new to angularJs. i need to fetch one image out of all retrieved images from the database. And then when i refresh the page the next image want to appear.

for an example first "banner.jpg" appear when i refresh the page "banner1.jpg" want to appear. can anyone help me to do solve this problem. please.

This is my retrieved Json

{
    "id": 1,
    "path": "Content/Banner/banner.jpg"
  },
  {
    "id": 2,
    "path": "Content/Banner/banner1.jpg"
  },
  {
    "id": 3,
    "path": "Content/Banner/banner2.jpg"
  },
  {
    "id": 4,
    "path": "Content/Banner/banner3.jpg"
  },

my angular controller.

appGM.controller('bannerCtrl', ['$scope', '$http', 'urls', function ($scope, $http, urls) {
var request = $http({
    method: 'GET',
    url: urls.api + 'Banner/Banners'

}).success(function (data, status) {

    console.log(data);
    console.log(JSON.stringify(data));
    console.log(JSON.parse(JSON.stringify(data)));

    $scope.BBanner = angular.fromJson(data);

})
 .error(function (error) {
     $scope.status = 'Unable to load dog images: ' + error.message;
     console.log($scope.status);
 });

And its my Html

<div class="row">
         <div class="col-sm-3 sidenav" ng-repeat="d in BBanner">
                        <img ng-src="{{d.path}}">
    </div>

Upvotes: 0

Views: 681

Answers (1)

Sachila Ranawaka
Sachila Ranawaka

Reputation: 41397

you can use localstorage to store the in in the first time. After you refresh the page increment the value and save it to the same local storage and so on.

run this Demo multiple time to see the id change.

controller

 if(!localStorage.getItem("uID")){
    var s = {"id":1};

    localStorage.setItem("uID", JSON.stringify(s))
  }
    $scope.data = [{
    "id": 1,
    "path": "Content/Banner/banner.jpg"
  },
  {
    "id": 2,
    "path": "Content/Banner/banner1.jpg"
  },
  {
    "id": 3,
    "path": "Content/Banner/banner2.jpg"
  },
  {
    "id": 4,
    "path": "Content/Banner/banner3.jpg"
  }]


 var item = localStorage.getItem("uID")
 item = JSON.parse(item);
 alert("Id = " + item.id)

 item.id = item.id +1  ;

 localStorage.setItem("uID", JSON.stringify(item))

 $scope.clear = function(){
   localStorage.removeItem("uID");
 }

updated

add this to check the image. check the demo again 

 var item = localStorage.getItem("uID")
 item = JSON.parse(item); 

 var obj = $scope.data.find(function(o){
   return o.id === item.id
 }) 
 // add this lines 
 $scope.image =(obj)? obj.path : "invalid id";
 if(item.id == 4){
    localStorage.removeItem("uIDs");
    item.id = 0;
 }
 item.id = item.id +1  ;

Upvotes: 1

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