我要实现的基本上是一个“对ng重复完成渲染”处理程序。我能够检测它何时完成，但我不知道如何从它触发一个函数。
检查小提琴:http://jsfiddle.net/paulocoelho/BsMqq/3/
JS
var module = angular.module('testApp', [])
.directive('onFinishRender', function () {
return {
restrict: 'A',
link: function (scope, element, attr) {
if (scope.$last === true) {
element.ready(function () {
console.log("calling:"+attr.onFinishRender);
// CALL TEST HERE!
});
}
}
}
});
function myC($scope) {
$scope.ta = [1, 2, 3, 4, 5, 6];
function test() {
console.log("test executed");
}
}
HTML
<div ng-app="testApp" ng-controller="myC">
<p ng-repeat="t in ta" on-finish-render="test()">{{t}}</p>
</div>
答:
工作小提琴从finishingmove: http://jsfiddle.net/paulocoelho/BsMqq/4/
如果你需要在同一个控制器上为不同的ng-repeat调用不同的函数，你可以尝试这样做:
该指令:
var module = angular.module('testApp', [])
.directive('onFinishRender', function ($timeout) {
return {
restrict: 'A',
link: function (scope, element, attr) {
if (scope.$last === true) {
$timeout(function () {
scope.$emit(attr.broadcasteventname ? attr.broadcasteventname : 'ngRepeatFinished');
});
}
}
}
});
在你的控制器中，用$on捕获事件:
$scope.$on('ngRepeatBroadcast1', function(ngRepeatFinishedEvent) {
// Do something
});
$scope.$on('ngRepeatBroadcast2', function(ngRepeatFinishedEvent) {
// Do something
});
在模板中使用多个ng-repeat
<div ng-repeat="item in collection1" on-finish-render broadcasteventname="ngRepeatBroadcast1">
<div>{{item.name}}}<div>
</div>
<div ng-repeat="item in collection2" on-finish-render broadcasteventname="ngRepeatBroadcast2">
<div>{{item.name}}}<div>
</div>
var module = angular.module('testApp', [])
.directive('onFinishRender', function ($timeout) {
return {
restrict: 'A',
link: function (scope, element, attr) {
if (scope.$last === true) {
$timeout(function () {
scope.$emit(attr.onFinishRender);
});
}
}
}
});
注意，我没有使用.ready()，而是将它包装在$timeout中。$timeout确保它在ng-repeat元素真正完成呈现时执行(因为$timeout将在当前摘要周期的末尾执行——并且它还将在内部调用$apply，不像setTimeout)。因此在ng-repeat完成之后，我们使用$emit将事件发送到外部作用域(兄弟作用域和父作用域)。
然后在你的控制器中，你可以用$on捕获它:
$scope.$on('ngRepeatFinished', function(ngRepeatFinishedEvent) {
//you also get the actual event object
//do stuff, execute functions -- whatever...
});
使用类似这样的html:
<div ng-repeat="item in items" on-finish-render="ngRepeatFinished">
<div>{{item.name}}}<div>
</div>
