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angularjs+ionic的app端分页和条件

程序员文章站 2022-07-04 19:41:35
做app项目积分商城的商品列表需要分页显示 实现: ionic滚动条:ion-scroll 用于创建一个可滚动的容器。 附:菜鸟教程:http://www.runoob.com/ionic/ionic-scroll.html 隶属于ionContent 或 ionScroll,要写在ion-cont ......

做app项目积分商城的商品列表需要分页显示

实现:

  ionic滚动条:ion-scroll 用于创建一个可滚动的容器。

  附:菜鸟教程:http://www.runoob.com/ionic/ionic-scroll.html

    隶属于ionContent 或 ionScroll,要写在ion-content才有效

ion-infinite-scroll

当用户到达页脚或页脚附近时,ionInfiniteScroll指令允许你调用一个函数 。

当用户滚动的距离超出底部的内容时,就会触发你指定的on-infinite。

ion-refresher

允许你添加下拉刷新滚动视图。

<!-- <ion-refresher> 下拉刷新指令  -->
<ion-refresher pulling-text="Pull to refresh" on-refresh="doRefresh()"></ion-refresher>

<!-- ion-infinite-scroll 上拉加载数据指令 distance默认1% nf-if的值为false时,就禁止执行on-infinite  -->
<ion-infinite-scroll ng-if="moredata" on-infinite="loadMore()" distance="1%" ></ion-infinite-scroll>

  1. on-refresh 下拉触发的函数 函数执行结束之前必须广播下该事件结束 $scope.$broadcast('scroll.refreshComplete');

     2. on-infinite 上拉触发的函数 同样需要广播事件结束 $scope.$broadcast('scroll.infiniteScrollComplete');

js代码:

 1     //加载更多
 2 //        $scope.items = [];
 3         //无限加载
 4         $scope.moredata = true;
 5         
 6         var sName = "''";//初始化搜索条件,默认
 7         var currentPage = 0;//初始化页码
 8         var intData = [];//初始化数组
 9         
10         //搜索事件
11         $scope.search = function() {
12             if($scope.searchName != undefined && $scope.searchName != "" && $scope.searchName != null) {
13                 sName = $scope.searchName;
14                 currentPage = 0;
15 //                intData = [];
16                 intData.splice(0,intData.length);//清空数组
17                 $scope.loadMore();
18             }
19         }
20         
21         //下拉刷新
22         $scope.doRefresh = function() {
23             currentPage = 1;
24             intData = [];
25             $scope.moredata = true;
26 //            $scope.loadMore();
27             HttpRequest.query("jdApi/commodity/getCommodityList/" + currentPage + "/" + sName + "/''", true)
28             .success(function(objs) {
29                 var result = angular.fromJson(objs.jdBaseMsgBean.result);
30                 
31                 //获取数据,在原来的数据基础上追加信息
32                 var lists = intData;
33                  if(lists.length > 0 ){  
34                         intData = new Array().concat(lists, result.data);  
35                     }else{  
36                         intData = result.data;
37                     }  
38                 $scope.gifts = intData;
39                 
40                 if(result.totalRecord <= currentPage*result.pageSize) {
41                     $scope.moredata = false;
42                 }
43                 //自动请求后台多次问题解决
44                 $timeout(function () {
45                     $scope.$broadcast('scroll.refreshComplete');
46                   }, 1000);
47             });
48             
49         }
50         
51         //上拉加载
52         $scope.loadMore = function() {
53 //            $http.get('/more-items').success(function(items) {
54 //              useItems(items);
55 //              $scope.$broadcast('scroll.infiniteScrollComplete');
56 //            });
57             currentPage += 1;
58             HttpRequest.query("jdApi/commodity/getCommodityList/" + currentPage + "/" + sName + "/''", true)
59             .success(function(objs) {
60                 var result = angular.fromJson(objs.jdBaseMsgBean.result);
61                 
62                 //获取数据,在原来的数据基础上追加信息
63                 var lists = intData;
64                  if(lists.length > 0 ){  
65                         intData = new Array().concat(lists, result.data);  
66                     }else{  
67                         intData = result.data;
68                     }  
69                 $scope.gifts = intData;
70                 
71                 if(result.totalRecord <= currentPage*result.pageSize) {
72                     $scope.moredata = false;
73                 }
74 //                if(result.totalPage == currentPage) {
75 //                    $scope.moredata = false;
76 //                }
77 //                if(result.data.length < result.pageSize){
78 //                    $scope.moredata = false;
79 //                }
80                 
81 //                $scope.$broadcast('scroll.infiniteScrollComplete');
82                 //自动请求后台多次问题解决--ionic 上拉刷新 ion-infinite-scroll 自动调用多次问题解决
83                 timer = $timeout(function () {  
84                             $scope.$broadcast('scroll.infiniteScrollComplete');  
85                         }, 1000); 
86             });
87         }
88     
89         $scope.$on('$stateChangeSuccess', function() {
90             $scope.loadMore();
91         });
92         
93         $scope.$on("$destroy", function () {  
94             //清除配置,不然scroll会重复请求   
95             $timeout.cancel(timer);  
96         });  

 说明:

  1.moredata,页面用ng-if="moredata",来判断是否加载数据。当滚动条到底部,并且服务器没有数据的时候,使用ng-if指令来控制便签是否存在,即,是否继续向服务器发送请求(如果没有这个功能,会不停的向服务器发送请求)。

  2.$scope.$on上的$stateChangeSuccess和$destroy,目前没用到,加上或不加暂时没有影响。

  3.HttpRequest.query("jdApi/commodity/getCommodityList/" + currentPage + "/" + sName + "/''", true)是service层封装的$http服务,如下

 1 query: function(url, isLoad){
 2             if(isLoad){
 3                 Prompt.showLoading();
 4             }
 5             var params = {"rd": angular.randomCode()};
 6             var http = $http({
 7                 method: 'QUERY',
 8                 params: params,
 9                 url: $rootScope.url.app + 'services/' + url,
10                 timeout:90000
11             });
12             http.error(function(data, status, headers, config){
13                 showError(status);
14             });
15             http.finally(function(){
16                 if(isLoad){
17                     Prompt.hideLoading();
18                 }
19             });
20             return http;
21         }

html代码:

 1 <ion-content class="divider-bg box-content" style="">
 2     <ion-refresher pulling-text="下拉刷新" on-refresh="doRefresh()"></ion-refresher>
 3     <ion-list>
 4         <ion-item class="item-thumbnail-left item-thumbnail-left-custom item-icon-right" ng-repeat="g in gifts" href="#/tab/my/jifen/gift/{{totalScore}}/{{g.id}}">
 5             <img class="img-48 media-object pull-left" ng-src="http://img13.360buyimg.com/n4/{{g.imagePath}}" alt="{{g.name}}">
 6             <h2>{{g.name}}</h2>
 7             <div class="shop-pro-list">
 8                 <span class="shop-pro-list-scores"><span class="color-org">{{g.price}}</span>{{'jifen.jifen' | i18next}}</span>
 9                 <span><i class="exchange-btn">{{'jifen.exchangeNow' | i18next}}</i></span>
10             </div>
11         </ion-item>
12     </ion-list>
13     <ion-infinite-scroll ng-if="moredata" on-infinite="loadMore()" distance="1%"></ion-infinite-scroll>
14 </ion-content>

搜索的代码:

<button class="button button-small button-search-jd" on-tap="search()">{{'jifen.search' | i18next}}</button>

解释:on-tap为ionic事件(手势轻击事件)

  ionic手势事件:http://www.runoob.com/ionic/ionic-gesture-event.html

注:分页参考文档

https://blog.csdn.net/jslcylcy/article/details/76633635
https://www.cnblogs.com/dreamowneryong/p/4969264.html

ionic 上拉刷新 ion-infinite-scroll 自动调用多次问题解决
  加入定时器timer:https://blog.csdn.net/chenhua4088/article/details/49929279

ionic 的下拉刷新 与 上拉加载:https://www.cnblogs.com/ailen226/p/4626166.html

列表展示页面,分页数据进行追加:http://hbiao68.iteye.com/blog/2295161