Angular ng-repeat遍历渲染完页面后执行其他操作详细

//要循环的数据
$scope.data = [
  {
    str: 'a'
  },
  {
    str: 'b'
  },
  {
    str: 'c'
  }
]

//自定义指令repeatFinish
app.directive('repeatFinish',function(){
  return {
    link: function(scope,element,attr){
      console.log(scope.$index)
      if(scope.$last == true){
        console.log('ng-repeat执行完毕')
      }
    }
  }
})
<div id="box">
  <span ng-repeat="item in data" repeat-finish>{{item.str}}</span>
</div>

<div id="box">
  <span ng-repeat="item in data" repeat-finish＝"renderFinish()">{{item.str}}</span>
</div>

app.directive('repeatFinish',function(){
  return {
    link: function(scope,element,attr){
      console.log(scope.$index)
      if(scope.$last == true){
        console.log('ng-repeat执行完毕')
        scope.$eval( attr.repeatFinish )
      }
    }
  }
})
//controller里对应的处理函数
$scope.renderFinish = function(){
  console.log('渲染完之后的操作')
}

app.directive('repeatFinish',function(){
  return {
    link: function(scope,element,attr){
      console.log(scope.$index)
      if(scope.$last == true){
        console.log('ng-repeat执行完毕')
        //向父控制器传递事件
        scope.$emit('to-parent');
        //向子控制器传递事件
        scope.$broadcast('to-child');
      }
    }
  }
})
//父控制器中监听事件
$scope.$on('to-parent',function(){
  //父控制器执行操作
})

//子控制器中监听事件
$scope.$on('to-child',function(){
  //子控制器执行操作
})