AngularJs location path change without all controllers resetting

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Short version of my question is: How do I change the URL without need to trigger route change or without need to run all the controllers on the currently displayed page?

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再見小時候

2021-02-06 07:12

Sounds like you don't want to use $route service.

The $route service is designed to reload the controllers so that there is no difference between navigating to a URL and refreshing the URL. We do this by doing a full reload on every URL change. This is intentional.

Sounds like your use case, should not be using $route, just $location and ng-include.

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渐次进展

2021-02-06 07:29

You can use $locationChangeStart event to store the previous value in $rootScope or in a service. When you come back, just initialize all the previously stored values from the $rootScope. Check this quick demo using $rootScope.

var app = angular.module("myApp", ["ngRoute"]);
app.controller("tab1Ctrl", function($scope, $rootScope) {
    if ($rootScope.savedScopes) {
        for (key in $rootScope.savedScopes) {
            $scope[key] = $rootScope.savedScopes[key];
        }
    }
    $scope.$on('$locationChangeStart', function(event, next, current) {
        $rootScope.savedScopes = {
            name: $scope.name,
            age: $scope.age
        };
    });
});
app.controller("tab2Ctrl", function($scope) {
    $scope.language = "English";
});
app.config(function($routeProvider) {
    $routeProvider
        .when("/", {
            template: "<h2>Tab1 content</h2>Name: <input ng-model='name'/><br/><br/>Age: <input type='number' ng-model='age' /><h4 style='color: red'>Fill the details and click on Tab2</h4>",
            controller: "tab1Ctrl"
        })
        .when("/tab2", {
            template: "<h2>Tab2 content</h2> My language: {{language}}<h4 style='color: red'>Now go back to Tab1</h4>",
            controller: "tab2Ctrl"
        });
});

<!DOCTYPE html>
<html>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular-route.js"></script>
<body ng-app="myApp">
    <a href="#/!">Tab1</a>
    <a href="#!tab2">Tab2</a>
    <div ng-view></div>
</body>
</html>

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