title: How can I pass data from one app to another app in flutter?
body: <p>I am developing an app in which payment automation is an functionality.
  What is required is that Account details need to be filled by my app, so that no need of manual typing.
  I know I can open app using url_launcher package, but I don't know how to pass data?
  and how to map data with the different textfield of the selected app .</p>