问题描述
有没有办法获取当前状态的前一个状态?
Is there a way to get the previous state of the current state?
例如，我想知道当前状态 B 之前的前一个状态是什么(前一个状态是状态 A).
For example I would like to know what the previous state was before current state B (where previous state would have been state A).
我无法在 ui-router github 文档页面中找到它.
I am not able to find it in ui-router github doc pages.
推荐答案
ui-router 一旦转换就不会跟踪之前的状态，但是 $stateChangeSuccess 事件会在 上广播$rootScope 当状态改变时.
ui-router doesn't track the previous state once it transitions, but the event $stateChangeSuccess is broadcast on the $rootScope when the state changes.
您应该能够从该事件中捕获先前的状态(from 是您要离开的状态):
You should be able to catch the prior state from that event (from is the state you're leaving):
$rootScope.$on('$stateChangeSuccess', function (ev, to, toParams, from, fromParams) {
//assign the "from" parameter to something
});
这篇关于Angular - ui-router 获取以前的状态的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！