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

我在这里提取了相关的部分。这是一个“没有装饰”的表格式寻呼机,所以排序或过滤不包括在内。请根据需要随意更改/添加:

//your data source may be different. the following line is //just for demonstration purposes only var modelData = [{ text: 'Test1' }, { text: 'Test2' }, { text: 'Test3' }]; (function(util) { util.PAGE_SIZE = 10; util.range = function(start, end) { var rng = []; if (!end) { end = start; start = 0; } for (var i = start; i < end; i++) rng.push(i); return rng; }; util.Pager = function(data) { var self = this, _size = util.PAGE_SIZE;; self.current = 0; self.content = function(index) { var start = index * self.size, end = (index * self.size + self.size) > data.length ? data.length : (index * self.size + self.size); return data.slice(start, end); }; self.next = function() { if (!self.canPage('Next')) return; self.current++; }; self.prev = function() { if (!self.canPage('Prev')) return; self.current--; }; self.canPage = function(dir) { if (dir === 'Next') return self.current < self.count - 1; if (dir === 'Prev') return self.current > 0; return false; }; self.list = function() { var start, end; start = self.current < 5 ? 0 : self.current - 5; end = self.count - self.current < 5 ? self.count : self.current + 5; return Util.range(start, end); }; Object.defineProperty(self, 'size', { configurable: false, enumerable: false, get: function() { return _size; }, set: function(val) { _size = val || _size; } }); Object.defineProperty(self, 'count', { configurable: false, enumerable: false, get: function() { return Math.ceil(data.length / self.size); } }); }; })(window.Util = window.Util || {}); (function(ns) { ns.SampleController = function($scope, $window) { $scope.ModelData = modelData; //instantiate pager with array (i.e. our model) $scope.pages = new $window.Util.Pager($scope.ModelData); }; })(window.Controllers = window.Controllers || {}); <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script> <table ng-controller="Controllers.SampleController"> <thead> <tr> <th> Col1 </th> </tr> </thead> <tbody> <tr ng-repeat="item in pages.content(pages.current)" title="{{item.text}}"> <td ng-bind-template="{{item.text}}"></td> </tr> </tbody> <tfoot> <tr> <td colspan="4"> <a href="#" ng-click="pages.prev()">&laquo;</a> <a href="#" ng-repeat="n in pages.list()" ng-click="pages.current = n" style="margin: 0 2px;">{{n + 1}}</a> <a href="#" ng-click="pages.next()">&raquo;</a> </td> </tr> </tfoot> </table>

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

这是一个纯javascript解决方案,我把它包装成一个Angular服务来实现像谷歌搜索结果那样的分页逻辑。

在http://codepen.io/cornflourblue/pen/KVeaQL/上的CodePen工作演示

细节和解释在这篇博文中

function PagerService() {
    // service definition
    var service = {};

    service.GetPager = GetPager;

    return service;

    // service implementation
    function GetPager(totalItems, currentPage, pageSize) {
        // default to first page
        currentPage = currentPage || 1;

        // default page size is 10
        pageSize = pageSize || 10;

        // calculate total pages
        var totalPages = Math.ceil(totalItems / pageSize);

        var startPage, endPage;
        if (totalPages <= 10) {
            // less than 10 total pages so show all
            startPage = 1;
            endPage = totalPages;
        } else {
            // more than 10 total pages so calculate start and end pages
            if (currentPage <= 6) {
                startPage = 1;
                endPage = 10;
            } else if (currentPage + 4 >= totalPages) {
                startPage = totalPages - 9;
                endPage = totalPages;
            } else {
                startPage = currentPage - 5;
                endPage = currentPage + 4;
            }
        }

        // calculate start and end item indexes
        var startIndex = (currentPage - 1) * pageSize;
        var endIndex = startIndex + pageSize;

        // create an array of pages to ng-repeat in the pager control
        var pages = _.range(startPage, endPage + 1);

        // return object with all pager properties required by the view
        return {
            totalItems: totalItems,
            currentPage: currentPage,
            pageSize: pageSize,
            totalPages: totalPages,
            startPage: startPage,
            endPage: endPage,
            startIndex: startIndex,
            endIndex: endIndex,
            pages: pages
        };
    }
}

Angular-Paging

是个不错的选择

帮助对大型数据集进行分页的指令,同时要求最少的实际分页信息。在这个分页方案中,我们非常依赖于服务器来“过滤”结果。其核心思想是我们只想保存项目的活动“页”——而不是将整个项目列表保存在内存中并在客户端分页。

下面解决方法相当简单。

<pagination  
        total-items="totalItems" 
        items-per-page= "itemsPerPage"
        ng-model="currentPage" 
        class="pagination-sm">
</pagination>

<tr ng-repeat="country in countries.slice((currentPage -1) * itemsPerPage, currentPage * itemsPerPage) "> 

下面是jsfiddle示例

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