angularjs 滚动加载更多数据

Posted 2020-06-24

下面的例子只是为了简单记录怎么使用angularjs来实现滚动加载数据，具体的还是需要具体看待:

javascript部分的controller

app.controller(‘AnalysizerCtrl‘, [‘$scope‘, ‘$timeout‘, ‘$window‘,
    function ($scope, $timeout, $window) {
            $scope.showData = false;
                $scope.isLoadingPIG = false;
                $scope.isLoadingUJ = false;
                $scope.isLoadingBoxSummary = false;
        	
        	$scope.LoadingData = function (index) {
    		        $scope.showData = true;
    		    var pigHeight = $(".analysisContainer")[1].children[1].scrollHeight;
    		    var ujHeight = $(".analysisContainer")[1].children[2].scrollHeight;
    		    var boxSummaryHeight = $(".analysisContainer")[1].children[3].scrollHeight;

		        if (index == 0) {
			    //$scope.reLoadData = true;

			    pigHeight = 0;
			    ujHeight = 0;

			    $scope.gridOptions.data = null;
		        }

		        var showSummaryBox = function () {
			    $scope.isLoadingBoxSummary = false;
		        }
		        var showUj = function () {
			    $scope.isLoadingUJ = false;
			    //$scope.isLoadingSummaryBox = true;
			    //$timeout(showSummaryBox, 1000);
		        }
		        var showPig = function () {
			        $scope.isLoadingPIG = false;
			    //$scope.isLoadingUJ = false;
			    //$timeout(showUj, 10000);
		        }

		        if (pigHeight == 0) {
			    $scope.isLoadingPIG = true;

			    $timeout(showPig, 1000);
		        } else if (ujHeight == 0) {
			    $scope.isLoadingUJ = true;

			    $timeout(showUj, 1000);
		        } else if (boxSummaryHeight == 0) {
			    $scope.isLoadingBoxSummary = true;

			    $timeout(showSummaryBox, 1000);
		        }
		};
	}]
).directive(‘whenScrollEnd‘, function () {
        return function (scope, elm, attr) {
            var pageWindow = $(this);
            pageWindow.bind(‘scroll‘, function (et, ed, pb) {
                var winScrollTop = pageWindow.scrollTop();
                var winHeight = pageWindow.height();
                var maxScrollHeight = $(".analysisContainer")[1].scrollHeight;
                if ((winScrollTop + winHeight) > maxScrollHeight) {
                    scope.$apply(attr.whenScrollEnd);
                }
            });
        }
    });

下面是html部分：

<div class="analysisContainer" ng-show="showData" when-scroll-end="LoadingData()">
	<div id="b" ng-show="isLoadingPIG" style="width: 100%; text-align: center; z-index: 1">
		<h6 class="loading">
			<img src="~/Content/Images/loading2.gif" />
			Loading Win & Convert data...
		</h6>
	</div>
	<div id="a" ng-show="!isLoadingPIG">
		<img src="~/2016-03-16_152323.png" />
	</div>
	<div ng-show="!isLoadingUJ">
		<img src="~/2016-03-16_153347.png" />
	</div>
	<div ng-show="!isLoadingBoxSummary">
		<img src="~/2016-03-16_153404.png" />
	</div>
</div>

重要的部分是指令(directive)和滚动时要加载数据的部分

本文出自 “狼之魂” 博客，请务必保留此出处http://lybing.blog.51cto.com/3286625/1751988