still trying to figure this out?
it isn't done in b4a. not exactly, in any case. you need a custom webviewclient to deal with
the webviewassetloader api. you access the client (in b4a) with a javaobject. it's easy to
implement and it works for loading files stored in dirassets or dirinternal. but a
customwebview will conflict with webview extenders (eg, webviewextras) not to mention our
for the moment, it is still possible to use the file:// url for targetsdk 30.
a setting in webviewextras gets you there.