AngularJs动态加载模块和依赖注入简单介绍

我心飞翔 分类:实例代码

为了实现这篇学习笔记知识点的效果,我们需要用到:

angular: https://github.com/angular/angular.js。

ui-router: https://github.com/angular-ui/ui-router。

ocLazyLoad: https://github.com/ocombe/ocLazyLoad。

首先我们看下文件结构:

Angular-ocLazyLoad                      --- demo文件夹
    Scripts                             --- 框架及插件文件夹
        angular-1.4.7                   --- angular 不解释
        angular-ui-router               --- uirouter 不解释
        oclazyload                      --- ocLazyload 不解释
        bootstrap                       --- bootstrap 不解释
        angular-tree-control-master     --- angular-tree-control-master 不解释
        ng-table                        --- ng-table 不解释
        angular-bootstrap               --- angular-bootstrap 不解释
    js                                  --- js文件夹 针对demo写的js文件
        controllers                     --- 页面控制器文件夹
            angular-tree-control.js     --- angular-tree-control控制器代码
            default.js                  --- default控制器代码
            ng-table.js                 --- ng-table控制器代码
        app.config.js                   --- 模块注册及配置代码
        oclazyload.config.js            --- 加载模块配置代码
        route.config.js                 --- 路由配置及加载代码
    views                               --- html页面文件夹
        angular-tree-control.html       --- angular-tree-control插件的效果页面
        default.html                    --- default页面
        ng-table.html                   --- ng-table插件效果页面
        ui-bootstrap.html               --- uibootstrap插件效果页面
    index.html                          --- 主页面

注意:这个demo没做嵌套路由,只是简单实现单视图的路由以展示效果。

我们来看主页面的代码:

<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="utf-8" />
    <title></title>
    <link rel="stylesheet" href="Scripts/bootstrap/dist/css/bootstrap.min.css" />
    <script src="Scripts/angular-1.4.7/angular.js"></script>
    <script src="Scripts/angular-ui-router/release/angular-ui-router.min.js"></script>
    <script src="Scripts/oclazyload/dist/ocLazyLoad.min.js"></script>
    <script src="js/app.config.js"></script>
    <script src="js/oclazyload.config.js"></script>
    <script src="js/route.config.js"></script>
</head>
<body>
<div ng-app="templateApp">
    <div>
        <a href="#/default">主页</a>
        <a href="#/uibootstrap" >ui-bootstrap</a>
        <a href="#/ngtable">ng-table</a>
        <a href="#/ngtree">angular-tree-control</a>
    </div>
    <div ui-view></div>
</div>
</body>
</html>

在这个页面,我们只加载了bootstrap的css、angular的js、ui-router的js、ocLazyLoad的js,以及3个配置的js文件。

再看看四个页面的html代码:

angular-tree-control效果页面

<treecontrol tree-model="ngtree.treeData" class="tree-classic ng-cloak" options="ngtree.treeOptions">
  {{node.title}}
</treecontrol>

页面上有个使用该插件对应的指令。

default页面

<div class="ng-cloak">
  {{default.value}}
</div>

这里我们只是用来证明加载并正确执行default.js。

ng-table效果页面

<div class="ng-cloak">
  <div class="p-h-md p-v bg-white box-shadow pos-rlt">
    <h3 class="no-margin">ng-table</h3>
  </div>
  <button ng-click="ngtable.tableParams.sorting({})" class="btn btn-default pull-right">Clear sorting</button>
  <p>
    <strong>Sorting:</strong> {{ngtable.tableParams.sorting()|json}}
  </p>
  <table ng-table="ngtable.tableParams" class="table table-bordered table-striped">
    <tr ng-repeat="user in $data">
      <td data-title="'Name'" sortable="'name'">
        {{user.name}}
      </td>
      <td data-title="'Age'" sortable="'age'">
        {{user.age}}
      </td>
    </tr>
  </table>
</div>

这里写了些简单的ng-table效果。

ui-bootstrap效果页面

<span uib-dropdown class="ng-cloak">
  <a href id="simple-dropdown" uib-dropdown-toggle>
    下拉框触发
  </a>
  <ul class="uib-dropdown-menu dropdown-menu" aria-labelledby="simple-dropdown">
    下拉框内容.这里写个效果证明实现动态加载即可
  </ul>
</span>

这里仅写了个下拉框效果,证明正确加载并使用该插件。

好了,看完了html,我们看下 加载配置和路由配置 :

"use strict"
var tempApp = angular.module("templateApp",["ui.router","oc.lazyLoad"])
.config(["$provide","$compileProvider","$controllerProvider","$filterProvider",
                function($provide,$compileProvider,$controllerProvider,$filterProvider){
                    tempApp.controller = $controllerProvider.register;
                    tempApp.directive = $compileProvider.register;
                    tempApp.filter = $filterProvider.register;
                    tempApp.factory = $provide.factory;
                    tempApp.service  =$provide.service;
                    tempApp.constant = $provide.constant;
                }]);

以上代码对模块的注册,仅仅依赖ui.router和oc.LazyLoad。

配置也只是简单配置了模块,以便在后面的js能识别到tempApp上的方法。

然后我们再看看 ocLazyLoad加载模块的配置 :

"use strict"
tempApp
.constant("Modules_Config",[
    {
        name:"ngTable",
        module:true,
        files:[
            "Scripts/ng-table/dist/ng-table.min.css",
            "Scripts/ng-table/dist/ng-table.min.js"
        ]
    },
    {
        name:"ui.bootstrap",
        module:true,
        files:[
            "Scripts/angular-bootstrap/ui-bootstrap-tpls-0.14.3.min.js"
        ]
    },
    {
        name:"treeControl",
        module:true,
        files:[
            "Scripts/angular-tree-control-master/css/tree-control.css",
            "Scripts/angular-tree-control-master/css/tree-control-attribute.css",
            "Scripts/angular-tree-control-master/angular-tree-control.js"
        ]
    }
])
.config(["$ocLazyLoadProvider","Modules_Config",routeFn]);
function routeFn($ocLazyLoadProvider,Modules_Config){
    $ocLazyLoadProvider.config({
        debug:false,
        events:false,
        modules:Modules_Config
    });
};

路由的配置:

"use strict"
tempApp.config(["$stateProvider","$urlRouterProvider","$locationProvider",routeFn]);
function routeFn($stateProvider,$urlRouterProvider,$locationProvider){
    $urlRouterProvider.otherwise("/default");
    $stateProvider
    .state("default",{
        url:"/default",
        views:{
            "":{
                templateUrl:"views/default.html",
                controller:"defaultCtrl",
                controllerAs:"default"
            }
        },
        resolve:{
            deps:["$ocLazyLoad",function($ocLazyLoad){
                return $ocLazyLoad.load("js/controllers/default.js");
            }]
        } 
    })
    .state("uibootstrap",{
        url:"/uibootstrap",
        views:{
            "":{
                templateUrl:"views/ui-bootstrap.html"
            }
        },
        resolve:{
            deps:["$ocLazyLoad",function($ocLazyLoad){
                return $ocLazyLoad.load("ui.bootstrap");
            }]
        } 
    })
    .state("ngtable",{
        url:"/ngtable",
        views:{
            "":{
                templateUrl:"views/ng-table.html",
                controller:"ngTableCtrl",
                controllerAs:"ngtable"
            }
        },
        resolve:{
            deps:["$ocLazyLoad",function($ocLazyLoad){
                return $ocLazyLoad.load("ngTable").then(
                    function(){
                        return $ocLazyLoad.load("js/controllers/ng-table.js");
                    }
                );
            }]
        } 
    })
    .state("ngtree",{
        url:"/ngtree",
        views:{
            "":{
                templateUrl:"views/angular-tree-control.html",
                controller:"ngTreeCtrl",
                controllerAs:"ngtree"
            }
        },
        resolve:{
            deps:["$ocLazyLoad",function($ocLazyLoad){
                return $ocLazyLoad.load("treeControl").then(
                    function(){
                        return $ocLazyLoad.load("js/controllers/angular-tree-control.js");
                    }
                );
            }]
        } 
    })
};

ui-bootstrap的下拉框简单的实现不需要控制器,那么我们就只看看ng-table和angular-tree-control的控制器js吧:

ng-table.js

(function(){
"use strict"
tempApp
.controller("ngTableCtrl",["$location","NgTableParams","$filter",ngTableCtrlFn]);
function ngTableCtrlFn($location,NgTableParams,$filter){
    var vm = this;
    //数据
    var data = [{ name: "Moroni", age: 50 },
                 { name: "Tiancum ", age: 43 },
                 { name: "Jacob", age: 27 },
                 { name: "Nephi", age: 29 },
                 { name: "Enos", age: 34 },
                 { name: "Tiancum", age: 43 },
                 { name: "Jacob", age: 27 },
                 { name: "Nephi", age: 29 },
                 { name: "Enos", age: 34 },
                 { name: "Tiancum", age: 43 },
                 { name: "Jacob", age: 27 },
                 { name: "Nephi", age: 29 },
                 { name: "Enos", age: 34 },
                 { name: "Tiancum", age: 43 },
                 { name: "Jacob", age: 27 },
                 { name: "Nephi", age: 29 },
                 { name: "Enos", age: 34 }];
    vm.tableParams = new NgTableParams(    // 合并默认的配置和url参数
        angular.extend({
            page: 1,            // 第一页
            count: 10,          // 每页的数据量
           sorting: {
                name: 'asc'     // 默认排序
            }
        },
        $location.search())
        ,{
            total: data.length, // 数据总数
            getData: function ($defer, params) {
                $location.search(params.url()); // 将参数放到url上,实现刷新页面不会跳回第一页和默认配置
                var orderedData = params.sorting ?
                        $filter('orderBy')(data, params.orderBy()) :data;
                $defer.resolve(orderedData.slice((params.page() - 1) * params.count(), params.page() * params.count()));
            }
        }
    );
};
})();

angular-tree-control.js

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