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

从Angular 1.4开始,limitTo过滤器也接受第二个可选参数begin

从文档中可以看出:

{{limitTo_expression | limitTo: limit: begin}} 开始 (可选) 字符串|数字 开始限制的索引。作为一个负索引,begin表示从输入的末尾开始的偏移量。默认值为0。

所以你不需要创建一个新的指令,这个参数可以用来设置分页的偏移量

ng-repeat="item in vm.items| limitTo: vm.itemsPerPage: (vm.currentPage-1)*vm.itemsPerPage" 

其他回答

这是我的例子。选中按钮在列表中间 控制器。 配置> > >

 $scope.pagination = {total: null, pages: [], config: {count: 10, page: 1, size: 7}};

分页逻辑:

/*
     Pagination
     */
    $scope.$watch('pagination.total', function (total) {
        if(!total || total <= $scope.pagination.config.count) return;
        _setPaginationPages(total);
    });

    function _setPaginationPages(total) {
        var totalPages = Math.ceil(total / $scope.pagination.config.count);
        var pages = [];
        var start = $scope.pagination.config.page - Math.floor($scope.pagination.config.size/2);
        var finish = null;

        if((start + $scope.pagination.config.size - 1) > totalPages){
            start = totalPages - $scope.pagination.config.size;
        }
        if(start <= 0) {
            start = 1;
        }

       finish = start +  $scope.pagination.config.size - 1;
       if(finish > totalPages){
           finish = totalPages;
       }


        for (var i = start; i <= finish; i++) {
            pages.push(i);
        }

        $scope.pagination.pages = pages;
    }

    $scope.$watch("pagination.config.page", function(page){
        _setPaginationPages($scope.pagination.total);
        _getRespondents($scope.pagination.config);
    });

以及我对引导的看法

<ul ng-class="{hidden: pagination.total == 0}" class="pagination">
        <li ng-click="pagination.config.page = pagination.config.page - 1"
            ng-class="{disabled: pagination.config.page == 1}" ><a href="#">&laquo;</a></li>
        <li ng-repeat="p in pagination.pages"
            ng-click="pagination.config.page = p"
            ng-class="{active: p == pagination.config.page}"><a href="#">{{p}}</a></li>
        <li ng-click="pagination.config.page = pagination.config.page + 1"
            ng-class="{disabled: pagination.config.page == pagination.pages.length}"><a href="#">&raquo;</a></li>
    </ul >

它很有用

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。

对于那些发现像我一样很难为一个表创建分页器的人,我发布了这个。 所以,在你看来:

          <pagination total-items="total" items-per-page="itemPerPage"    ng-model="currentPage" ng-change="pageChanged()"></pagination>    
        <!-- To specify your choice of items Per Pages-->
     <div class="btn-group">
                <label class="btn btn-primary" ng-model="radioModel"  btn-radio="'Left'" data-ng-click="setItems(5)">5</label>
                <label class="btn btn-primary" ng-model="radioModel" btn-radio="'Middle'" data-ng-click="setItems(10)">10</label>
                <label class="btn btn-primary" ng-model="radioModel" btn-radio="'Right'" data-ng-click="setItems(15)">15</label>
            </div>
     //And don't forget in your table:
      <tr data-ng-repeat="p in profiles | offset: (currentPage-1)*itemPerPage | limitTo: itemPerPage" >

在你的angularJs中:

  var module = angular.module('myapp',['ui.bootstrap','dialogs']);
  module.controller('myController',function($scope,$http){
   $scope.total = $scope.mylist.length;     
   $scope.currentPage = 1;
   $scope.itemPerPage = 2;
   $scope.start = 0;

   $scope.setItems = function(n){
         $scope.itemPerPage = n;
   };
   // In case you can replace ($scope.currentPage - 1) * $scope.itemPerPage in <tr> by "start"
   $scope.pageChanged = function() {
        $scope.start = ($scope.currentPage - 1) * $scope.itemPerPage;
            };  
});
   //and our filter
     module.filter('offset', function() {
              return function(input, start) {
                start = parseInt(start, 10);
                return input.slice(start);
              };
            });     

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

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。