如何呈现类似于MFMailComposeViewController的UIViewController

Question

I try to present a UIViewController similar to the way a MFMailComposeViewController is presented. but I did not find which modalPresentationStyle to use.

Answer 1

You can display a modal dialog like that using the pageSheet style. Select the Segue in the storyboard and select "Page Sheet". This example shows Form Sheet (which is slightly smaller) - but you can select Page Sheet in that same drop down to get the larger modal dialog.

If you are building the controller yourself, here's an example:

let controller = UIStoryboard(name: Constants.Storyboard.main, bundle: nil).instantiateViewController(withIdentifier: "MyControllerIDFromStoryboard")

        controller.modalPresentationStyle = .pageSheet 

If you're using performSegue(withIdentifier:sender:) you can put the attribute on the segue itself in the storyboard.