How to Build a Multi-Line TextField in SwiftUI

Developed on Xcode 11.4 with SwiftUI

As SwiftUI on iOS 13 does not support TextView by default, we need to create our own UIViewRepresentable. This UIViewRepresentable can wrap TextView which we can use in SwiftUI.

The UIViewRepresentable protocol requires us to implement makeUIView, updateUIView, makeCoordinator, UIViewType, etc. So, now we shall try to create a UITextView wrapper for SwiftUI.

Now that we are done creating the view, we need to set the coordinator delegate.

Recalculate the height and update the view in updateUIView.