我需要测量包含li的ul的宽度它第一次效果很好。但是,当重新加载数据时,宽度的两倍是真正的宽度,我认为这是由于呈现新的li,然后再删除旧的li
在渲染新的
之前,我如何首先删除旧的liP.S。如果我放置了1000个超时,它可以正常工作,但是我不想每次等待1秒钟。
<ul class='ul'>
<li ng-repeat="thing in data.things" class="buyer_li" ng-init="$last && getUlWidth()">
<p>{{thing.detail}}
</li>
</ul>
<button ng-click="reloadData()">Reload</button>
$scope.getUlWidth = function(){
setTimeout(function() {
$scope.ulWidth = document.querySelector('.ul').clientWidth;
}, 0);
}
$scope.reloadData = function(){
//reloadDataFunc;
}
我找到了发生的原因,是因为我没有通过任何东西跟踪ng重复,添加=按$ index解决了问题。
在我认为这可能是您的布局的CSS,不确定。但是我包括一支可能可以提供帮助的笔。
function exampleController($scope, exampleFactory, $timeout) {
$scope.list = [];
$scope.listContainerWidth = '???';
$scope.refreshList = function() {
$scope.list = [];
$scope.listContainerWidth = '???';
$scope.listContainerWidth = document.querySelector('.ul').clientWidth;
$timeout(function() {
getList();
}, 1000);
};
function getList() {
exampleFactory
.getList()
.then(function(list) {
$scope.list = list;
});
}
getList();
}
function exampleFactory($http) {
var root = 'http://jsonplaceholder.typicode.com';
function getList() {
return $http.get(root + '/comments')
.then(function(resp) {
return resp.data;
});
}
return {
getList: getList
};
}
angular
.module('app', [])
.controller('exampleController', exampleController)
.factory('exampleFactory', exampleFactory);
.container-fluid {
background-color: #1D1F20;
color: #fff;
font-size: 14px;
font-weight: bold;
button {
margin-top: 20%;
}
}
ul li {
list-style: none;
margin: 10px;
}
.child-padding>div {
padding: 2px;
}
.col-md-2 {
position: fixed;
button {
margin-bottom: 10%;
}
}
.circle-bound {
float: left;
text-align: center;
border-radius: 50%;
width: 25%;
background-color: #0bf;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/css/bootstrap.min.css"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div class="container-fluid" ng-app="app">
<div class="container" ng-controller="exampleController">
<div class="row">
<div class="col-md-2 text-center">
<button class="btn btn-primary" type="button" ng-click="refreshList()">Refresh Comment List</button>
<div class="circle-bound" ng-bind="listContainerWidth"></div>
</div>
<div class="col-md-10 pull-right">
<ul class="ul">
<li ng-repeat="comment in list track by $index">
<div class="child-padding">
<div ng-bind="comment.email"></div>
<div ng-bind="comment.body"></div>
</div>
<div class="pull-right" ng-bind="comment.name"></div>
</li>
</ul>
</div>
</div>
</div>
</div>