Ionic run a controller function on view open/shown

Ionic run a controller function on view open/shown : We sometimes need to call a controller when the view is loded or open/shown. You can load the controller on the ion-nav-view load and it’s function. Here in this tutorial we are going to explain how to load and call a different controller function whenever the view is loaded ie. open/shown.

Ionic run a controller function on view open/shown

Here are the steps to run a controller function on ion view open-

ion-nav-view Part

Add the controller name you want to load and call it’s function as below

<ion-nav-view ng-controller="myController" name="test" ng-init="testFunction()">

</ion-nav-view>

Now let us define the controller and it’s function as below-

Controller Part

.controller('myController', function($scope) {
  $scope.testFunction = function() {    
	 //Your Code Goes Here
  };
  
});

The above controller will be loaded and function testFunction will be called.

Ionic clear view cache on close : afterLeave –

$scope.$on("$ionicView.afterLeave", function () {
     $ionicHistory.clearCache();
}); 

The above example will clear ionic view cache each time it is closed.