does
Checks whether PSPDFKit can show `PdfReaderView` on this device. This checks for availability of the WebView system packages. This method returns false, if the WebView package is not installed or has been disabled by the user.
Note that this method must be called from the main thread.
Return
true if the conversion is available, false if not.
Parameters
context
Context used to check installed WebView packages.
Throws
if not called from the main thread.