通过 ng-click 在几个元素上切换类 [英] Toggle class with ng-click on several elements

问题描述

如何使用 ng-click 在多个元素上单独切换类?

How can I toggle classes on several elements individually with ng-click?

在这个问题 https://stackoverflow.com/a/22072110/2169327 中点击切换类已完成像这样:

In this question https://stackoverflow.com/a/22072110/2169327 toggling classes with a click was done like this:

CSS:

.red {
    color: red;
}

JS:

$scope.toggle = false;

HTML:

<button id="btn" ng-click="toggle = !toggle" ng-class="{'red' : toggle}">Change Class</button>

但是如果我有几个按钮，每个按钮都应该用 ng-click 切换自己的类怎么办?

But what if I have several buttons that each should toggle its own class with ng-click?

如果我这样设置:

HTML:

<button id="btn" ng-click="toggle = !toggle" ng-class="{'red' : toggle}">Change Class</button>
<button id="btn2" ng-click="toggle = !toggle" ng-class="{'red' : toggle}">Change Class</button>

如果我按下一个按钮，两个按钮都会切换.

Both buttons get toggled if I press one.

我知道一种解决方法是为每个按钮定义一个自己的 ng-click 事件(例如，按钮 1 为切换 1，按钮 2 为切换 2) - 但这是最​​好的方法吗?

I know a workaround is to define an own ng-click event for each button (f.ex toggle1 for button1, toggle2 for button2) - but is this the best way?

推荐答案

我做了简单的测试指令:

I made simple directive for testing:

module.directive('toggleClass', function() {
    return {
        restrict: 'A',
        link: function(scope, element, attrs) {
            element.bind('click', function() {
                element.toggleClass(attrs.toggleClass);
            });
        }
    };
});

所以你可以制作任何你需要的元素切换类

so you can make any element toggle class you need

<button id="btn" toggle-class="active">Change Class</button>
<div toggle-class="whatever"></div>

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