Prevent Proguard to remove specific drawables

Question

In my Android project, I have some images stored in res/drawable/ which are accessed only from an HTML file loaded in a Webview. For example (code in HTML):

Answer 1

For localized simple htmls (no linked localized local files/images)

Use this Proguard rule for raw folder:

-keep class com.example.appname.R$raw { *; }

Example Url for WebView:

file:///android_res/raw/filename.html

Example folder structure:

res/raw/filename.html

res/raw-en/filename.html

res/raw-hu/filename.html