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Angular.js combined with Bootstrap to implement accordion menu code_AngularJS

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2016-05-16 15:05:461831browse

The title is based on the combination of angularjs and bootstrap to implement the accordion menu, which actually uses the bootstrap style.

In the previous article, I introduced to you Angular.js combined with Bootstrap to implement table paging code. Then learn the implemented Demo.

Mainly practice custom instructions and pass parameters to the instructions. The old rule is to show the renderings first:

<my-page ng-repeat="item in expanders" page-title="item.title">{{item.text}}</my-page> 

The above is my customized instruction. The menu has 3 items of title and content, which are rendered using ng-repeat.

The basic API of the command is as follows:

app.directive('myDirective',function(){
return {
//restrict: 默认为A(属性,默认值)<div my-directive=''></div> E(元素)C(类名)M(注释)
//这里考虑到浏览器的兼容性通常我们用所有浏览器都认识的A类型
restrict: 'A',
//优先级设置,默认是0,较大的优先调用
priority: 0,
//这个参数用来告诉AngularJS停止运行当前元素上比本指令优先级低的指令。但同当前指令优先级相同的指令还是会被执行。
terminal: false,
//字符串或函数: 字符串<a></a>(指令内容)
//注:必须存在一个根DOM元素
//一个可以接受两个参数的函数,参数为tElement和tAttrs,并返回一个代表模板的字符串 
//function(tElement, tAttrs) { ... }
template: '', 
//从指定的url地址加载模板
templateUrl: '',
//如果设置了这个参数,值必须为true
replace: false,
//指定指令的作用域
scope:'',
//
transclude:'',
//string
//function(scope, element, attrs, transclude, otherInjectables) { ... }
controller:'',
//
controllerAs: '',
//
require: '',
//以编程的方式操作DOM,包括添加监听器等
link: function postLink(scope, iElement, iAttrs) {},
//
compile: // 返回一个对象或连接函数,如下所示:
function(tElement, tAttrs, transclude) {
return {
pre: function(scope, iElement, iAttrs, controller) { },
post: function(scope, iElement, iAttrs, controller) { }
}
// 或者
return function postLink() { }
};
};
}) 

How to hide others when switching? The command ng-show is mainly used here to record the currently clicked ones to hide others.

The specific code comments are as follows:

<style type="text/css">
.con {
margin: 0 auto;
width: 600px;
margin-top: 100px;
}
.panel {
width: 580px;
}
.panel-heading {
cursor: pointer;
}
</style>
<link rel="stylesheet" href="http://apps.bdimg.com/libs/bootstrap/3.3.4/css/bootstrap.min.css" />
<div class="con" ng-app="myApp" ng-controller="myCtrl">
<my-page ng-repeat="item in expanders" page-title="item.title">{{item.text}}</my-page>
</div>
<script src="http://apps.bdimg.com/libs/angular.js/1.5.0-beta.0/angular.js"></script>
<script type="text/javascript">
var app = angular.module('myApp', []);
app.directive('myPage', function () {
return {
restrict: 'EA',
replace: true,
transclude: true, //是否将元素内容转移到模版中
scope: {
title: "=pageTitle"
},
template: [
'<div class="panel panel-info">',
'<div class="panel-heading" ng-click="toggle();">',
'<h3 class="panel-title" >{{title}}</h3>',
'</div>',
'<div class="panel-body" ng-show="showMe" ng-transclude></div>',
'</div>'
].join(""),
link: function (scope, element, attrs) {
scope.showMe = false;
scope.$parent.addExpander(scope); //保存所有菜单
scope.toggle = function toggle() {
scope.showMe = !scope.showMe; //隐藏显示
scope.$parent.goToExpander(scope);
}
}
};
})
app.controller('myCtrl', function ($scope) {
$scope.expanders = [{
title: 'AngularJS',

text: 'AngularJS 诞生于2009年,由Misko Hevery 等人创建,后为Google所收购。是一款优秀的前端JS框架,已经被用于Google的多款产品当中。AngularJS有着诸多特性,最为核心的是:MVVM、模块化、自动化双向数据绑定、语义化标签、依赖注入等等。'


}, {
title: 'jQuery',
text: 'JQuery是继prototype之后又一个优秀的Javascript库。它是轻量级的js库 ,它兼容CSS3,还兼容各种浏览器(IE 6.0+, FF 1.5+, Safari 2.0+, Opera 9.0+),jQuery2.0及后续版本将不再支持IE6/7/8浏览器。jQuery使用户能更方便地处理HTML(标准通用标记语言下的一个应用)、events、实现动画效果,并且方便地为网站提供AJAX交互。jQuery还有一个比较大的优势是,它的文档说明很全,而且各种应用也说得很详细,同时还有许多成熟的插件可供选择。jQuery能够使用户的html页面保持代码和html内容分离,也就是说,不用再在html里面插入一堆js来调用命令了,只需要定义id即可。'
}, {
title: 'Bootstrap',
text: 'Bootstrap,来自 Twitter,是目前很受欢迎的前端框架。Bootstrap 是基于 HTML、CSS、JAVASCRIPT 的,它简洁灵活,使得 Web 开发更加快捷。 它由Twitter的设计师Mark Otto和Jacob Thornton合作开发,是一个CSS/HTML框架。Bootstrap提供了优雅的HTML和CSS规范,它即是由动态CSS语言Less写成。Bootstrap一经推出后颇受欢迎,一直是GitHub上的热门开源项目,包括NASA的MSNBC(微软全国广播公司)的Breaking News都使用了该项目。 国内一些移动开发者较为熟悉的框架,如WeX5前端开源框架等,也是基于Bootstrap源码进行性能优化而来。'
}];
var expanders = []; //记录所有菜单
$scope.addExpander = function (expander) {
expanders.push(expander);
};
$scope.goToExpander = function (selectedExpander) {
expanders.forEach(function (item, index) {
if (item != selectedExpander) { //隐藏非当前选项卡
item.showMe = false;
}
})
}
});
</script>
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