Is it possible to access the WebView cache?

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猫巷女王i
猫巷女王i 2021-02-10 00:06

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 i

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  • 2021-02-10 00:40

    CacheManager: http://developer.android.com/reference/android/webkit/CacheManager.html

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  • 2021-02-10 00:51

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

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

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

    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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  • 2021-02-10 00:56

    If someone else faces this problem, I had a similar issue and I solve it managing(saving and retrieving) my app cache manually. Here it is my related post.

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