是否需要CookieSyncManager的WebView的有效实例？ [英] Does CookieSyncManager need a valid instance of WebView?

问题描述

我在我的应用程序）有点不寻常的情况中，我不能在的onCreate实例的WebView （而是仅后来在回调（即使不在同一线程）。

I have a somewhat unusual situation in my app in which I cannot instantiate WebView in onCreate() but rather only later on in a callback (not even on the same thread).

因此​​，俗套指令（没有双关语意）在官方文档，在其中你叫 CookieSyncManager.getInstance（）。startSync（）在 Activity.onResume（）并不真正适用于我的情况。

As a result, the cookie cutter instructions (no pun intended) in the official documentation, in which you call CookieSyncManager.getInstance().startSync() in Activity.onResume() don't really apply in my situation.

这是因为 CookieSyncManager :: createInstance建立（）需要被调用的 之前 CookieSyncManager ::的getInstance（），但我的回调就是所谓的在 Activity.onResume（）（其中 CookieSyncManager ::的getInstance （）被调用）。

This is because CookieSyncManager::createInstance() needs to be called before CookieSyncManager::getInstance(), but my callback is called after Activity.onResume() (where CookieSyncManager::getInstance() is called).

所以，我唯一的办法似乎移动 CookieSyncManager :: createInstance建立（）到 Activity.onResume（），只打电话之前 CookieSyncManager ::的getInstance（）。

So my only recourse seems to move CookieSyncManager::createInstance() to Activity.onResume(), just before calling CookieSyncManager::getInstance().

这是不是一个真正的好的解决方案，因为除非我可以检查一个 CookieSyncManager 实例的存在，这不是一个好主意创建 CookieSyncManager ...的多个实例（它不会正常工作，反正）。

Which isn't really a good solution because, unless I can check for the existence of a CookieSyncManager instance, it's not a good idea to create more than one instance of CookieSyncManager... (it won't work properly anyway).

所以我想也许是移动 CookieSyncManager :: createInstance建立（）到的onCreate（）是完全在与官方文档线。唯一的问题是，实例的WebView 不的onCreate还不存在（） ...

So I am thinking of perhaps move CookieSyncManager::createInstance()to onCreate() to be perfectly in line with the official documentation. The only problem is, an instance of WebView doesn't exist yet in onCreate()...

因此​​，我的问题：是否需要CookieSyncManager的WebView的有效实例

Hence my question: Does CookieSyncManager require a valid instance of WebView?

推荐答案

好了，你可以打电话CookieSyncManager创建的WebView对象之前，但随后你的WebView对象的饼干也不会被保存。

Well, You can call CookieSyncManager before creating a WebView object, but then your WebView object's cookies will not be saved either.

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