angular.js - AngularJS makes Div automatically scroll to the bottom.

Question

When using AngularJs for instant messaging, you need to fix the scroll bar of p to the bottom.
I tried the following method now, but no response.

//----p滚动条置底
$scope.scrollWindow=function(){
    var _el = document.getElementById('chat_history');
    _el.scrollTop = _el.scrollHeight;
};

//----使用方法
$timeout(function(){
    $scope.scrollWindow();
},500);

Answer 1

Answers that have been successfully implemented. HTML5 的API DOMNodeInserted is used to detect changes in element content.

$scope.scroll_go=function(){
    var _childEl=jQuery(".chat-history"),_el=jQuery("#chat_history");
    if(_childEl.height()>(_documentSize.height - 50)){
        _el.scrollTop(_childEl.height());
    }
    //----检测元素内容变动
    _childEl.bind('DOMNodeInserted',function(){
        _el.scrollTop(_childEl.height());
    });
};

Answer 2

$scope.scrollWindow=function(){
    var _el = document.getElementById('chat_history');
    _el.scrollTop = _el.scrollHeight - _el.height;
};