md-virtual-repeat-container 是md-virtual-repeat组件的滚动容器.
下表列出了 md-virtual-repeat-container 的不同属性的参数和描述.
| Sr.No | 参数&说明 |
|---|---|
| 1 | md-top-index 将滚动容器顶部的项目索引绑定到$ scope.它既可以读取也可以设置滚动位置. |
| 2 | md-orient-horizontal 确定容器是否应水平滚动(默认为方向和垂直滚动). |
| 3 | md-auto-shrink 当存在时，容器将缩小以适合该数量小于其原始大小的项目数. |
| 4 | md- auto-shrink-min <b $ bmd-auto-shrink缩小到的最小项目数(默认值:0). |
虚拟重复是ng-repeat的替代品，只能渲染足够的html用户填充容器并在用户滚动时重复使用它们.
下表列出了不同att的参数和说明 md-virtual-repeat 的ributes.
| Sr.No | 参数&说明 |
|---|---|
| 1 | md-item-size 重复元素的高度或宽度(每个元素必须相同).这是可选的.如果丢失，这会尝试从dom读取大小，但仍假定所有重复的节点具有相同的高度或宽度. |
| 2 | md-extra-name 评估到可以在重复范围上分配当前迭代项目的附加名称(需要在md-autocomplete中使用). |
| 3 | md-on-demand 何时present，将 md-virtual-repeat 参数视为可以获取行而不是数组的对象.此对象必须使用两(2)个方法实现以下接口 :
|
以下示例显示虚拟重复的使用.
am_virtualrepeat.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">
<style>
.vrepeatContainer #horizontal-container {
height: 100px;
width: 830px;
}
.vrepeatContainer #vertical-container {
height: 292px;
width: 400px;
}
.vrepeatContainer .repeated-item-horizontal {
border-right: 1px solid #ddd;
box-sizing: border-box;
display: inline-block;
height: 84px;
padding-top: 35px;
text-align: center;
width: 50px;
}
.vrepeatContainer .repeated-item-vertical {
border-bottom: 1px solid #ddd;
box-sizing: border-box;
height: 40px;
padding-top: 10px;
}
.vrepeatContainer md-content {
margin: 16px;
}
.vrepeatContainer md-virtual-repeat-container {
border: solid 1px grey;
}
</style>
<script language = "javascript">
angular
.module('firstApplication', ['ngMaterial'])
.controller('vrepeatController', vrepeatController);
function vrepeatController ($scope) {
this.items = [];
for (var i = 0; i < 1000; i++) {
this.items.push(i);
}
}
</script>
</head>
<body ng-app = "firstApplication">
<div class = "vrepeatContainer" ng-controller = "vrepeatController as ctrl"
ng-cloak>
<md-content layout = "column">
<h2>Horizontal Repeat</h2>
<md-virtual-repeat-container id = "horizontal-container" md-orient-horizontal>
<div md-virtual-repeat = "item in ctrl.items"
class = "repeated-item-horizontal" flex>
{{item}}
</div>
</md-virtual-repeat-container>
<h2>Vertical Repeat</h2>
<md-virtual-repeat-container id = "vertical-container">
<div md-virtual-repeat = "item in ctrl.items"
class = "repeated-item-vertical" flex>
{{item}}
</div>
</md-virtual-repeat-container>
</md-content>
</div>
</body>
</html>验证结果.
