Question

寻找一种方法来获取AngularJS'a ng-repeat orderBy过滤器在完成渲染后进行回调...

标记：

    <div ng-controller="MyCtrl">
    <table>
        <thead>
            <tr>
                <th ng-click="sort('name')">Name:</th>
                <th ng-click="sort('age')">Age:</th>
            </tr>
        </thead>
        <tbody>
            <tr ng-repeat="item in items | orderBy:sortColumn:reverseSort">
                <td>{{item.name}}</td>
                <td>{{item.age}}</td>
            </tr>
        </tbody>
    </table>
</div>

JS：

var myApp = angular.module('myApp', []);

function MyCtrl($scope) {
    $scope.items = [{
        "name": "John",
            "age": 25
    }, {
        "name": "Amy",
            "age": 75
    }, {
        "name": "Sarah",
            "age": 12
    }, {
        "name": "Matt",
            "age": 55
    }, {
        "name": "Xaviour",
            "age": 2
    }];

    $scope.sortColumn = 'name';
    $scope.reverseSort = false;

    $scope.sort = function (column) {
        $scope.sortColumn = column;
        $scope.reverseSort = !$scope.reverseSort;
    };

    $scope.sortRenderFinished = function(){
        console.log('Done Rendering!');
        //Do something
    };
}

JSfiddle

正如你所看到的那样..一旦orderBy过滤器执行完毕并改变表行的顺序，我希望看到像$ scope.sortRenderFinished（）这样的东西。

任何帮助都会非常感谢！： - ）

Answer 1

像往常一样，我过度思考这个问题......

只需创建一个自定义排序函数并手动管理数组，而不是依赖于ng-repeat指令中的orderBy过滤器：

var myApp = angular.module（'myApp'，[]）;

function MyCtrl($scope, $filter) {
    $scope.items = [{
        "name": "John",
            "age": 25
    }, {
        "name": "Amy",
            "age": 75
    }, {
        "name": "Sarah",
            "age": 12,
    }, {
        "name": "Matt",
            "age": 55
    }, {
        "name": "Xaviour",
            "age": 2
    }];



    $scope.addChild = function () {
        var
        matt = $scope.items[findIndexByKeyValue($scope.items, 'name', 'Matt')],
            savannah = {
                "name": "Savannah",
                    "age": 2,
                    "parent": matt
            };

        console.log('matt');
        console.log(matt);

        $scope.items.splice($scope.items.indexOf(matt) + 1, 0, savannah);
        matt.child = savannah;
        $scope.matt = matt;
        $scope.savannah = savannah;
    };

    var findIndexByKeyValue = function (obj, key, value) {
        for (var i = 0; i < obj.length; i++) {
            if (obj[i][key] == value) {
                return i;
            }
        }
        return null;
    };


    $scope.sortColumnExp = '';

    $scope.sort = function (column) {
        $scope.sortColumnExp = ($scope.sortColumnExp.indexOf('-') == 0) ? column : '-' + column;
        console.log($scope.sortColumnExp);
        if ($scope.savannah) {
            $scope.items.splice($scope.items.indexOf($scope.savannah), 1);
        }
        $scope.items = $filter('orderBy')($scope.items, $scope.sortColumnExp);
        if ($scope.savannah) {
            $scope.items.splice($scope.items.indexOf($scope.savannah.parent) + 1, 0, $scope.savannah);
        }
    };

}

Working JSFiddle我正在尝试做什么...感谢@LcLk上面的痕迹..

如何为ng-repeat orderBy创建回调？

1 个答案: