Support for AutoFill (password managers)

Currently, Qt-based apps aren’t able to make use of password managers, because they expect apps to use native GUI elements (e.g. EditText) or to support the AutoFill frameworks. This leads to a poor customer experience compared to native apps, as users expect this feature (see screenshots).

AutoFill frameworks on iOS and Android expect, that text inputs are annotated to be username or password. Unfortunately, that doesn’t work with QML. Neither setting 

inputMethodHints: Qt.ImhHiddenText

 nor 

Accessible.passwordEdit: true

 is recognized by password managers.

Documentation AutoFill frameworks:

iOS:

https://developer.apple.com/documentation/security/password_autofill/enabling_password_autofill_on_a_text_input_view?language=objc

Android:

https://developer.android.com/guide/topics/text/autofill-optimize