我在内存中有大约1000项的数据集,并试图创建一个寻呼机 这个数据集,但我不确定怎么做。
我正在使用一个自定义过滤器函数来过滤结果,这工作得很好,但我需要以某种方式获得页数。
有线索吗?
我在内存中有大约1000项的数据集,并试图创建一个寻呼机 这个数据集,但我不确定怎么做。
我正在使用一个自定义过滤器函数来过滤结果,这工作得很好,但我需要以某种方式获得页数。
有线索吗?
当前回答
我想添加我的解决方案,与ngRepeat和过滤器,你使用它不使用$watch或切片数组。
您的筛选结果将分页!
var app = angular.module('app', ['ui.bootstrap']);
app.controller('myController', ['$scope', function($scope){
$scope.list= ['a', 'b', 'c', 'd', 'e'];
$scope.pagination = {
currentPage: 1,
numPerPage: 5,
totalItems: 0
};
$scope.searchFilter = function(item) {
//Your filter results will be paginated!
//The pagination will work even with other filters involved
//The total number of items in the result of your filter is accounted for
};
$scope.paginationFilter = function(item, index) {
//Every time the filter is used it restarts the totalItems
if(index === 0)
$scope.pagination.totalItems = 0;
//This holds the totalItems after the filters are applied
$scope.pagination.totalItems++;
if(
index >= (($scope.pagination.currentPage - 1) * $scope.pagination.numPerPage)
&& index < ((($scope.pagination.currentPage - 1) * $scope.pagination.numPerPage) + $scope.pagination.numPerPage)
)
return true; //return true if item index is on the currentPage
return false;
};
}]);
在HTML中,确保在分页过滤器之前对ngRepeat应用过滤器。
<table data-ng-controller="myController">
<tr data-ng-repeat="item in list | filter: searchFilter | filter: paginationFilter track by $index">
<td>
{{item}}
</td>
<tr>
</table>
<ul class="pagination-sm"
uib-pagination
data-boundary-links="true"
data-total-items="pagination.totalItems"
data-items-per-page="pagination.numPerPage"
data-ng-model="pagination.currentPage"
data-previous-text="‹"
data-next-text="›"
data-first-text="«"
data-last-text="»">
</ul>
其他回答
jQuery Mobile angular适配器有一个分页过滤器,你可以基于它。
下面是一个使用它的演示小提琴(添加超过5个项目,它就会变成页面):http://jsfiddle.net/tigbro/Du2DY/
来源如下:https://github.com/tigbro/jquery-mobile-angular-adapter/blob/master/src/main/webapp/utils/paging.js
我最近为用Angular构建的站点实现了分页。你可以签出源代码:https://github.com/angular/builtwith.angularjs.org
我会避免使用过滤器来分离页面。您应该在控制器中将这些项分解为页面。
我使用这个第三方分页库,它工作得很好。它可以执行本地/远程数据源,并且是非常可配置的。
https://github.com/michaelbromley/angularUtils/tree/master/src/directives/pagination
<dir-pagination-controls
[max-size=""]
[direction-links=""]
[boundary-links=""]
[on-page-change=""]
[pagination-id=""]
[template-url=""]
[auto-hide=""]>
</dir-pagination-controls>
ng-repeat分页
<div ng-app="myApp" ng-controller="MyCtrl">
<input ng-model="q" id="search" class="form-control" placeholder="Filter text">
<select ng-model="pageSize" id="pageSize" class="form-control">
<option value="5">5</option>
<option value="10">10</option>
<option value="15">15</option>
<option value="20">20</option>
</select>
<ul>
<li ng-repeat="item in data | filter:q | startFrom:currentPage*pageSize | limitTo:pageSize">
{{item}}
</li>
</ul>
<button ng-disabled="currentPage == 0" ng-click="currentPage=currentPage-1">
Previous
</button>
{{currentPage+1}}/{{numberOfPages()}}
<button ng-disabled="currentPage >= getData().length/pageSize - 1" ng- click="currentPage=currentPage+1">
Next
</button>
</div>
<script>
var app=angular.module('myApp', []);
app.controller('MyCtrl', ['$scope', '$filter', function ($scope, $filter) {
$scope.currentPage = 0;
$scope.pageSize = 10;
$scope.data = [];
$scope.q = '';
$scope.getData = function () {
return $filter('filter')($scope.data, $scope.q)
}
$scope.numberOfPages=function(){
return Math.ceil($scope.getData().length/$scope.pageSize);
}
for (var i=0; i<65; i++) {
$scope.data.push("Item "+i);
}
}]);
app.filter('startFrom', function() {
return function(input, start) {
start = +start; //parse to int
return input.slice(start);
}
});
</script>
Angular UI引导-分页指令
查看UI Bootstrap的分页指令。我最终使用了它,而不是在这里发布的,因为它有足够的功能满足我目前的使用,并有一个完整的测试规范。
View
<!-- table here -->
<pagination
ng-model="currentPage"
total-items="todos.length"
max-size="maxSize"
boundary-links="true">
</pagination>
<!-- items/page select here if you like -->
控制器
todos.controller("TodoController", function($scope) {
$scope.filteredTodos = []
,$scope.currentPage = 1
,$scope.numPerPage = 10
,$scope.maxSize = 5;
$scope.makeTodos = function() {
$scope.todos = [];
for (i=1;i<=1000;i++) {
$scope.todos.push({ text:"todo "+i, done:false});
}
};
$scope.makeTodos();
$scope.$watch("currentPage + numPerPage", function() {
var begin = (($scope.currentPage - 1) * $scope.numPerPage)
, end = begin + $scope.numPerPage;
$scope.filteredTodos = $scope.todos.slice(begin, end);
});
});
我做了一个工作活塞供参考。
遗留版本:
View
<!-- table here -->
<div data-pagination="" data-num-pages="numPages()"
data-current-page="currentPage" data-max-size="maxSize"
data-boundary-links="true"></div>
<!-- items/page select here if you like -->
控制器
todos.controller("TodoController", function($scope) {
$scope.filteredTodos = []
,$scope.currentPage = 1
,$scope.numPerPage = 10
,$scope.maxSize = 5;
$scope.makeTodos = function() {
$scope.todos = [];
for (i=1;i<=1000;i++) {
$scope.todos.push({ text:"todo "+i, done:false});
}
};
$scope.makeTodos();
$scope.numPages = function () {
return Math.ceil($scope.todos.length / $scope.numPerPage);
};
$scope.$watch("currentPage + numPerPage", function() {
var begin = (($scope.currentPage - 1) * $scope.numPerPage)
, end = begin + $scope.numPerPage;
$scope.filteredTodos = $scope.todos.slice(begin, end);
});
});
我做了一个工作活塞供参考。