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I am looking for an elegant way to access local files (either on phone memory or SD Card) on an Android device from JavaScript running in WebView on an Android device.

I am loading said WebView with a html page from the device located in the assets folder. Along these lines, I believe I can access any file in this assets folder from the Javascript, but can't load anything from SD card or phone memory. I am aware of the addJavaScriptInterface, but I am specifically trying to load images, so using this method would require some tweaking to pass a B64 encoded image.

I am new to Android development, and want to make sure I am not missing something obvious.

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You need to implement a ContentProvider to map local files to uris.

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The web link mentioned is broken. That's why it's always a good idea to provide an answer inline.
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Android tip #1 ContentProvider , Accessing local file system from WebView / showing image in webview using content://

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That link is broken, but Archive.org has it here: web.archive.org/web/20101108043507/http://www.techjini.com/blog/…

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