javascript - AngularJS Ion.RangeSlider 不会在更改特定按钮时动态更新最小值和最大值

Question

我有一个在分析间使用的 slider 指令 ionRangeSlider。单击按钮时，混合值和最大值会发生变化 但它没有在指令中更新。我在中添加了 watch 功能 链接。

下面是 slider 指令

var app = angular.module('ionSlider',[]);
app.directive('ionslider',function($timeout){
return{
    restrict:'AE',
    require: 'ngModel',
    scope:{
    options:'='
    },
    template:'<div id="{{id}}" ></div>',
    replace:true,
    link:function($scope, $element, attrs, ngModel) {
       // //function init(){
        var init =function(){
            $element.ionRangeSlider({
                min: $scope.options.min,
                max: $scope.options.max,
                type: $scope.options.type,
                prefix: $scope.options.prefix,
                maxPostfix: $scope.options.maxPostfix,
                prettify: $scope.options.prettify,
                hasGrid: $scope.options.hasGrid,
                gridMargin: $scope.options.gridMargin,
                postfix:$scope.options.postfix,
                from:$scope.options.from,
                step:$scope.options.step,
                hideMinMax:$scope.options.hideMinMax,
                hideFromTo:$scope.options.hideFromTo,
                onChange:$scope.options.onChange
            });
        };
        init();
      //OnChange
     var    update = function()
        {
         $element.ionRangeSlider ({
              min: $scope.options.min,
                max: $scope.options.max,
                type: $scope.options.type,
                prefix: $scope.options.prefix,
                maxPostfix: $scope.options.maxPostfix,
                prettify: $scope.options.prettify,
                hasGrid: $scope.options.hasGrid,
                gridMargin: $scope.options.gridMargin,
                postfix:$scope.options.postfix,
                from:$scope.options.from,
                step:$scope.options.step,
                hideMinMax:$scope.options.hideMinMax,
                hideFromTo:$scope.options.hideFromTo,
                onChange:$scope.options.onChange
         });

        };
    //watch
      $scope.$watch('options', function(value) {
        $timeout(function(){ update(); }); 

      });
     }
    }
});

其 HTML 代码如下:

    <td  style="width:30%;" class="normal_row"><span><input ng-model="ldcInput.value" type="text" id={{key}} ionslider options="{'min':ldcInput.minValue,'max':ldcInput.maxValue,'step':ldcInput.step}" ng-change="mathCalculation(ldcInput)"/></span></td>

上面的最小值和最大值 slider 值会根据单击按钮而更改。但它没有反射(reflect)在 slider 中。请让我知道指令中哪里出错了。

Answer 1

由于 ion.RangeSlider 是由 jQuery 注入(inject)的，因此您无法通过再次调用注入(inject)来更新其任何属性。

我通过向此分支添加可更新的属性和一些缺失的属性来改进现有的指令，这将解决您的问题。有关如何使用它的示例，请参阅 github 页面。

/**
 * Created by Abdullah on 9/19/14.
 * 
 * Modified and enhanced by Juergen Wahlmann on 3/5/15
 */

var app = angular.module('ionSlider',['ngRoute']);


app.directive('ionslider',function($timeout){
return{
    restrict:'E',
    scope:{min:'=',
        max:'=',
        type:'@',
        prefix:'@',
        maxPostfix:'@',
        prettify:'@',
        hasGrid:'@',
        gridMargin:'@',
        postfix:'@',
        step:'@',
        hideMinMax:'@',
        hideFromTo:'@',
        from:'=',
        disable:'=',
        onChange:'=',
        onFinish:'='

    },
    template:'<div></div>',
    replace:true,
    link:function($scope,$element,attrs){
        (function init(){
            $($element).ionRangeSlider({
                min: $scope.min,
                max: $scope.max,
                type: $scope.type,
                prefix: $scope.prefix,
                maxPostfix: $scope.maxPostfix,
                prettify: $scope.prettify,
                hasGrid: $scope.hasGrid,
                gridMargin: $scope.gridMargin,
                postfix:$scope.postfix,
                step:$scope.step,
                hideMinMax:$scope.hideMinMax,
                hideFromTo:$scope.hideFromTo,
                from:$scope.from,
                disable:$scope.disable,
                onChange:$scope.onChange,
                onFinish:$scope.onFinish
            });
        })();
        $scope.$watch('min', function(value) {
            $timeout(function(){ $($element).data("ionRangeSlider").update({min: value}); });
        },true);
        $scope.$watch('max', function(value) {
            $timeout(function(){ $($element).data("ionRangeSlider").update({max: value}); });
        });
        $scope.$watch('from', function(value) {
            $timeout(function(){ $($element).data("ionRangeSlider").update({from: value}); });
        });
        $scope.$watch('disable', function(value) {
            $timeout(function(){ $($element).data("ionRangeSlider").update({disable: value}); });
        });
    }
}
});

ionRangeSlider-Angular-Directive