开关（Switches）

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2023-12-01

md-switch是一个Angular指令，用于显示一个开关。

属性 (Attributes)

下表列出了md-switch不同属性的参数和说明。

Sr.No	参数和描述
1	* ng-model 数据绑定的可赋值角度表达式。
2	name 发布控件的表单的属性名称。
3	ng-true-value 选中时应设置表达式的值。
4	ng-false-value 未选中时表达式应设置的值。
5	ng-change 由于用户与input元素交互而导致输入发生变化时要执行的Angular表达式。
6	ng-disabled 根据表达式启用/禁用。
7	md-no-ink 属性的使用表示使用波纹墨水效果。
8	aria-label 这将发布屏幕阅读器用于访问的按钮标签。这默认为交换机的文本。

例子 (Example)

以下示例显示了md-swipe- *的使用以及滑动组件的用法。

am_switches.htm

<html lang = "en">
   <head>
      <link rel = "stylesheet"
         href = "https://ajax.googleapis.com/ajax/libs/angular_material/1.0.0/angular-material.min.css">
      <script src = "https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular.min.js"></script>
      <script src = "https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular-animate.min.js"></script>
      <script src = "https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular-aria.min.js"></script>
      <script src = "https://ajax.googleapis.com/ajax/libs/angularjs/1.4.8/angular-messages.min.js"></script>
      <script src = "https://ajax.googleapis.com/ajax/libs/angular_material/1.0.0/angular-material.min.js"></script>
      <link rel = "stylesheet" href = "https://fonts.googleapis.com/icon?family=Material+Icons">
      <script language = "javascript">
         angular
            .module('firstApplication', ['ngMaterial'])
            .controller('switchController', switchController);
         function switchController ($scope) {
            $scope.data = {
               switch1: true,
               switch2: false,
               switch3: false,
               switch4: true,
               switch5: true,
               switch6: false
            };
            $scope.message = 'false';
            $scope.onChange = function(state) {
               $scope.message = state;
            };
         }	  
      </script>      
   </head>
   <body ng-app = "firstApplication"> 
      <div id = "switchContainer" ng-controller = "switchController as ctrl"
         layout = "column" ng-cloak>
         <md-switch ng-model = "data.switch1" aria-label = "Switch 1">
            Switch 1: {{ data.switch1 }}
         </md-switch>
         <md-switch ng-model = "data.switch2" aria-label = "Switch 2"
            ng-true-value = "'true'" ng-false-value = "'false'" class = "md-warn">
            Switch 2 (md-warn): {{ data.switch2 }}
         </md-switch>
         <md-switch ng-disabled = "true" aria-label = "Disabled switch"
            ng-model = "disabledModel">
            Switch 3 (Disabled)
         </md-switch>
         <md-switch ng-disabled = "true" aria-label = "Disabled active switch"
            ng-model = "data.switch4">
            Switch 4 (Disabled, Active)
         </md-switch>
         <md-switch class = "md-primary" md-no-ink aria-label = "Switch No Ink"
            ng-model = "data.switch5">
            Switch 5 (md-primary): No Ink
         </md-switch>
         <md-switch ng-model = "data.switch6" aria-label = "Switch 6"
            ng-change = "onChange(data.switch6)">
            Switch 6 : {{ message }}
         </md-switch>    
      </div>
   </body>
</html>