The best approach to transferring data from a web view to a native application (Windows, iOS and Android)

Question

Surprisingly, the best approach is to read HTML / JS in a web browser in a native application that works for:

• IOS
• Android
• Windows Phone

Can all three platforms read the contents of a web view, or is the sandbox preventing it from doing this?

Answer 1

IOS:

More details

passing-data-to-and-from-an-embedded-uiwebview

ios-pass-values-to-native-app-from

Android:

webkit-communication-with-native-environment

Answer 2

In iOS, you can easily chat with a web view by injecting some JS. In the opposite direction, calling messages are a little more complicated, but still possible when you create a kind of bridge between JS and iOS.

I think Android is probably easier. I do not know about Windows Phone.