AngularJS 结合Bootstrap

今天我们学下AngularJS 结合 Bootstrap的应用。

AngularJS 的首选样式表是 Twitter Bootstrap, Twitter Bootstrap 是目前最受欢迎的前端框架。

Bootstrap

你可以在你的 AngularJS 应用中加入 Twitter Bootstrap,你可以在你的 <head>元素中添加如下代码:

<link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css">

如果站点在国内,建议使用百度静态资源库的Bootstrap,代码如下:

<link rel="stylesheet" href="//apps.bdimg.com/libs/bootstrap/3.3.4/css/bootstrap.min.css">

以下是一个完整的 HTML 实例, 使用了 AngularJS 指令和 Bootstrap 类。

HTML 代码:

<!DOCTYPE html>
<html>
<head>
<title>AngularJS 实例 | Web176教程网web176.com</title>
<meta charset="utf-8">
<link rel="stylesheet" href="//apps.bdimg.com/libs/bootstrap/3.3.4/css/bootstrap.min.css">
<script src="https://cdn.staticfile.org/angular.js/1.4.6/angular.min.js"></script>
</head>
<body ng-app="myApp" ng-controller="userCtrl">

<div class="container">

<h3>Users</h3>

<table class="table table-striped">
  <thead>
    <tr>
      <th>编辑</th>
      <th>名</th>
      <th>姓</th>
    </tr>
  </thead>
  <tbody>
    <tr ng-repeat="user in users">
      <td>
        <button class="btn" ng-click="editUser(user.id)">
          <span class="glyphicon glyphicon-pencil"></span>编辑
        </button>
      </td>
      <td>{{ user.fName }}</td>
      <td>{{ user.lName }}</td>
    </tr>
  </tbody>
</table>

<hr>
<button class="btn btn-success" ng-click="editUser('new')">
<span class="glyphicon glyphicon-user"></span>创建新用户
</button>
<hr>

<h3 ng-show="edit">创建新用户:</h3>
<h3 ng-hide="edit">编辑用户:</h3>

<form class="form-horizontal">
  <div class="form-group">
    <label class="col-sm-2 control-label">名:</label>
    <div class="col-sm-10">
    <input type="text" ng-model="fName" ng-disabled="!edit" placeholder="名">
    </div>
  </div> 
  <div class="form-group">
    <label class="col-sm-2 control-label">姓:</label>
    <div class="col-sm-10">
    <input type="text" ng-model="lName" ng-disabled="!edit" placeholder="姓">
    </div>
  </div>
  <div class="form-group">
    <label class="col-sm-2 control-label">密码:</label>
    <div class="col-sm-10">
    <input type="password" ng-model="passw1" placeholder="密码">
    </div>
  </div>
  <div class="form-group">
    <label class="col-sm-2 control-label">重复密码:</label>
    <div class="col-sm-10">
    <input type="password" ng-model="passw2" placeholder="重复密码">
    </div>
  </div>
</form>

<hr>
<button class="btn btn-success" ng-disabled="error || incomplete">
<span class="glyphicon glyphicon-save"></span>修改
</button>

</div>

<script>
angular.module('myApp', []).controller('userCtrl', function($scope) {
$scope.fName = '';
$scope.lName = '';
$scope.passw1 = '';
$scope.passw2 = '';
$scope.users = [
{id:1, fName:'Hege',lName:"Pege" },
{id:2, fName:'Kim',lName:"Pim" },
{id:3, fName:'Sal',lName:"Smith" },
{id:4, fName:'Jack',lName:"Jones" },
{id:5, fName:'John',lName:"Doe" },
{id:6, fName:'Peter',lName:"Pan" }
];
$scope.edit = true;
$scope.error = false;
$scope.incomplete = false; 
$scope.editUser = function(id) {
  if (id == 'new') {
    $scope.edit = true;
    $scope.incomplete = true;
    $scope.fName = '';
    $scope.lName = '';
    } else {
    $scope.edit = false;
    $scope.fName = $scope.users[id-1].fName;
    $scope.lName = $scope.users[id-1].lName; 
  }
};

$scope.$watch('passw1',function() {$scope.test();});
$scope.$watch('passw2',function() {$scope.test();});
$scope.$watch('fName',function() {$scope.test();});
$scope.$watch('lName',function() {$scope.test();});

$scope.test = function() {
  if ($scope.passw1 !== $scope.passw2) {
    $scope.error = true;
    } else {
    $scope.error = false;
  }
  $scope.incomplete = false;
  if ($scope.edit && (!$scope.fName.length ||
    !$scope.lName.length ||
    !$scope.passw1.length || !$scope.passw2.length)) {
    $scope.incomplete = true;
  }
};
})
  
</script>

</body>
</html>

指令解析

AngularJS 指令描述
<html ng-app为 <html> 元素定义一个应用(未命名)
<body ng-controller为 <body> 元素定义一个控制器
<tr ng-repeat循环 users 对象数组,每个 user 对象放在 <tr> 元素中。
<button ng-click当点击 <button> 元素时调用函数 editUser()
<h3 ng-show如果 edit = true 显示 <h3> 元素
<h3 ng-hide如果 edit = true 隐藏 <h3> 元素
<input ng-model为应用程序绑定 <input> 元素
<button ng-disabled如果发生错误或者 incomplete = true 禁用 <button> 元素

Bootstrap 类解析

元素Bootstrap 类定义
<div>container内容容器
<table>table表格
<table>table-striped带条纹背景的表格
<button>btn按钮
<button>btn-success成功按钮
<span>glyphicon字形图标
<span>glyphicon-pencil铅笔图标
<span>glyphicon-user用户图标
<span>glyphicon-save保存图标
<form>form-horizontal水平表格
<div>form-group表单组
<label>control-label控制器标签
<label>col-sm-2跨越 2 列
<div>col-sm-10跨越 10 列

JavaScript 代码

//myUsers.js
angular.module('myApp', []).controller('userCtrl', function($scope) {
$scope.fName = '';
$scope.lName = '';
$scope.passw1 = '';
$scope.passw2 = '';
$scope.users = [
{id:1, fName:'Hege', lName:"Pege" },
{id:2, fName:'Kim',  lName:"Pim" },
{id:3, fName:'Sal',  lName:"Smith" },
{id:4, fName:'Jack', lName:"Jones" },
{id:5, fName:'John', lName:"Doe" },
{id:6, fName:'Peter',lName:"Pan" }
];
$scope.edit = true;
$scope.error = false;
$scope.incomplete = false;

$scope.editUser = function(id) {
  if (id == 'new') {
    $scope.edit = true;
    $scope.incomplete = true;
    $scope.fName = '';
    $scope.lName = '';
    } else {
    $scope.edit = false;
    $scope.fName = $scope.users[id-1].fName;
    $scope.lName = $scope.users[id-1].lName;
  }
};

$scope.$watch('passw1',function() {$scope.test();});
$scope.$watch('passw2',function() {$scope.test();});
$scope.$watch('fName', function() {$scope.test();});
$scope.$watch('lName', function() {$scope.test();});

$scope.test = function() {
  if ($scope.passw1 !== $scope.passw2) {
    $scope.error = true;
    } else {
    $scope.error = false;
  }
  $scope.incomplete = false;
  if ($scope.edit && (!$scope.fName.length ||
  !$scope.lName.length ||
  !$scope.passw1.length || !$scope.passw2.length)) {
     $scope.incomplete = true;
  }
};

});

JavaScript 代码解析

Scope 属性用途
$scope.fName模型变量 (用户名)
$scope.lName模型变量 (用户姓)
$scope.passw1模型变量 (用户密码 1)
$scope.passw2模型变量 (用户密码 2)
$scope.users模型变量 (用户的数组)
$scope.edit当用户点击创建用户时设置为true。
$scope.error如果 passw1 不等于 passw2 设置为 true
$scope.incomplete如果有一个字段为空(length = 0)设置为 true
$scope.editUser设置模型变量
$scope.watch监控模型变量
$scope.test验证模型变量的错误和完整性

作者:terry,如若转载,请注明出处:https://www.web176.com/angularjs/6482.html

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