什么是销毁地图实例的正确方法？ [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。该应用程序是导航哈希更改事件替换整个DOM的单个页面。应用程序的一部分是使用API​​ v3的Google Map。在将DOM从DOM中删除之前，我想删除任何事件处理程序/侦听器，并释放尽可能多的内存，因为用户可能不会再返回到该部分。

破坏地图实例的最好方法是什么？

正式答案是不是。

对于某些单页面应用程序，这可能意味着需要重新设计解决方案，以便一旦映射完成被创建它可能隐藏或断开与DOM，但它永远不会被销毁/重新创建。

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.

What is the best way to destroy a map instance?

解决方案

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

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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