销毁地图实例的正确方法是什么? [英] What is the Proper Way to Destroy a Map Instance?

问题描述

我最近开发了一个 html5 移动应用程序.该应用程序是一个页面，其中导航哈希更改事件替换了整个 DOM.该应用程序的一个部分是使用 API v3 的 Google 地图.在从 DOM 中删除地图 div 之前，我想删除所有事件处理程序/侦听器并释放尽可能多的内存，因为用户可能不会再次返回该部分.

I recently developed an html5 mobile application. The application was a single page where navigation hash change events replaced the entire DOM. One section of the application was a Google Map using API v3. Before the map div is removed from the DOM, I want to remove any event handlers/listeners and free up as much memory as possible as the user may not return to that section again.

销毁地图实例的最佳方法是什么?

What is the best way to destroy a map instance?

推荐答案

官方答案 你没有.单页应用程序中的地图实例应该被重用，而不是销毁然后重新创建.

The official answer is you don't. Map instances in a single page application should be reused and not destroyed then recreated.

对于某些单页应用程序，这可能意味着重新构建解决方案，这样一旦创建了地图，它就可能被隐藏或与 DOM 断开连接，但它永远不会被破坏/重新创建.

For some single page applications, this may mean re-architecting the solution such that once a map is created it may be hidden or disconnected from the DOM, but it is never destroyed/recreated.

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