Tips for avoiding view refreshes while switching routes in AngularJS

Question

Tips for avoiding view refreshes while switching routes in AngularJS

I'm currently developing a web application that allows users to view objects on a map, click on a marker, and navigate to a new section with specific information. This information can lead to further details as well.

For example:

/map
/tree/{treeid}
/tree/{treeid}/information/{informationid}

I have successfully maintained the model state while navigating between routes/states. However, my challenge lies in ensuring that the entire map (with markers) does not need to be recalculated when going back in the browser history. Essentially, I want to preserve the rendered state of /map when progressing deeper into the application.

One way to achieve this is by using search parameters instead of routes on /map (e.g., /map?treeid=10), disabling reload on search, and employing ng-hide="treeid" on the map object and ng-show on the tree-info object.

My question is whether there is a more effective and appropriate method of accomplishing this in Angular?

Thank you for your assistance.

javascript angularjs angular-routing angularjs-view

Answer 1

Answer №1

To address your question about recalculating the entire map, one solution is to render the Google Map on the same level as your ng-view, but move it off-screen for hiding purposes.

For a demonstration of how this method could work, take a look at this Plunker example:
http://plnkr.co/edit/wsjYoG2uXxYxXTmWdFGh?p=preview

You'll see that I purposely kept a portion of the map visible while hiding it to demonstrate that it doesn't need to redraw when changing routes.

Answer 2

To address your question about recalculating the entire map, one solution is to render the Google Map on the same level as your ng-view, but move it off-screen for hiding purposes.

For a demonstration of how this method could work, take a look at this Plunker example:
http://plnkr.co/edit/wsjYoG2uXxYxXTmWdFGh?p=preview

You'll see that I purposely kept a portion of the map visible while hiding it to demonstrate that it doesn't need to redraw when changing routes.

Answer 3

Answer №2

To ensure data sharing among views and controllers, consider creating a dedicated service for storing the data. Services act as singletons, allowing the data to be accessed and manipulated across different components of your application. Here's an example implementation:

angular.module('myApp').factory('GlobalService', [
    function() {
        var _this = this;
        _this._data = {
            user: window.user,
            authenticated: !!window.user
        };

        return _this._data;
    }
]); 

angular.module('myApp').controller('FooController',
    ['$scope', 'GlobalService',
    function ($scope, GlobalService) {
        $scope.global = GlobalService;
        $scope.global.bar = someData;
        ...
]);

Answer 4

To ensure data sharing among views and controllers, consider creating a dedicated service for storing the data. Services act as singletons, allowing the data to be accessed and manipulated across different components of your application. Here's an example implementation:

angular.module('myApp').factory('GlobalService', [
    function() {
        var _this = this;
        _this._data = {
            user: window.user,
            authenticated: !!window.user
        };

        return _this._data;
    }
]); 

angular.module('myApp').controller('FooController',
    ['$scope', 'GlobalService',
    function ($scope, GlobalService) {
        $scope.global = GlobalService;
        $scope.global.bar = someData;
        ...
]);

Answer 5

Answer №3

I came across an interesting article worth reading: Boosting AngularJS Performance for Handling Big Lists. It provides insights on best practices and common mistakes to steer clear of when dealing with extensive or intricate data sets.

Answer 6

I came across an interesting article worth reading: Boosting AngularJS Performance for Handling Big Lists. It provides insights on best practices and common mistakes to steer clear of when dealing with extensive or intricate data sets.

Tips for avoiding view refreshes while switching routes in AngularJS

Answer №1

Answer №2

Answer №3

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