Internal views

Launching another app is very useful, but it does mean that the calling app is put in the background. To return to it, you must stop the current app and return to the calling app. Some functions can be implemented as views within the current app, just like the drawing we have been working on.

There are several packaged views with special functions. Each will be managed by a view controller and can be presented and removed like any other view. There are:

Web view -- most of the functions of a browser
Map view -- most of the Maps app
Mail compose view -- send email from within your app
Text edit view -- create and edit a body of text

Here is a project for trial.