首先我们定义一个指定(directive),如下面代码:
.directive('myTouchEven', ['$swipe', "$rootScope", function ($swipe, $rootScope) { return { restrict: 'EA', link: function (scope, ele, attrs, ctrl) { var startX, pointY; $swipe.bind(ele, { 'start': function (coords) { startX = coords.x; pointY = coords.y; c("startX:" + startX + "pointY:" + pointY) }, 'move': function (coords) { var a = coords.x - startX; if (a < -100 && a > -110) { startX = coords.x; $rootScope.$broadcast("TouchEven", "back"); } else if (a > 100 && a < 110) { startX = coords.x; $rootScope.$broadcast("TouchEven", "next"); } c("move:" + a + " coords.x:" + coords.x) }, 'end': function (coords) { c("end") c("endX:" + coords.x + "endY:" + coords.y) }, 'cancel': function (coords) { c("cancel") } }); } } }])
这里使用$swipe来帮顶触摸事件,在start事件中记录开始点击的坐标值(x、y)的数据;然后我们监控move事件,计算当前的坐标值(x、y)于开始点击的坐标值相差是多少,如果大于或者小于我们设定的数值,那么则发送一个全局广播,这里注入了$rootScope,用来发送全局广播($broadcast),其他指令(directive)、服务(service)、控制器(controller)等只要注册了(TouchEven)广播监听,就能接收到我们发送的广播事件,下面是示例代码:
.controller("ListController", function ($scope, $routeParams,ajax) { $scope.pages = 1; $scope.$on("TouchEven",function(a,b){ var is_send = null; if(is_send == null){ is_send = 1; if(b == "back"){ $scope.pages -= 1; }else if(b == "next"){ $scope.pages += 1; } ajax.get("/api/v1/articleList",{pages:$scope.pages}) .success(function(data){ is_send = null; c(data) /** * write something code. */ }) .error(function(err){ is_send = null; toast(err.response_err) /** * write something code. */ }) } }); })
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