是否有可能访问的WebView缓存？ [英] Is it possible to access the WebView cache?

问题描述

我有一个web视图中，我可以访问网页。是否有可能，当我脱机访问，例如到已经previously下载的图片吗？ 而且如果可能的话我该怎么办呢？

I have a WebView in which I can access to web pages. Is it possible, when I am offline to have access for example to the images that have been previously downloaded? And if it is possible how can I do this?

在此先感谢。

推荐答案

是的，你可以，至少在Android 2.3的低。

Yes, you can, at least for Android 2.3 and lower.

如果你想看到整个缓存文件夹，它是坐落于此：

If you want to see the entire cache folder, it is situated here:

<android cache dir>/<your app package>/cache/webviewCache/

如果你已经知道缓存图片的网址，就可以得到实际的文件，以便：

If you already know the URL of the cached image, you can get the actual file so:

String uri = "http://the url of the image that you need";
String hashCode = String.format("%08x", uri.hashCode());
File file = new File(new File(getCacheDir(), "webviewCache"), hashCode);
// if the call file.exist() returns true, then the file presents in the cache

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