A multiplatform SwiftUI project demonstrating various SwiftUI features.

Swift Dev Journal

Last update: Oct 17, 2022

Related tags

SwiftUI App WikiDemo

Overview

WikiDemo

A multiplatform SwiftUI project demonstrating various SwiftUI features, including creating a master-detail interface. It's a multiplatform version of the MacWikiDemo project. I use this project as a sample project in the following articles:

The master view shows a list of pages. Select a page to show the page's contents in the detail view.

The detail view has two views: a text view where you type Markdown and a web view that shows HTML.

System Requirements

Xcode 13.0+ for iOS version
Xcode 13.1+ for Mac version
iOS 14+
macOS 11+

Adding Pages

Click the Add button at the bottom of the list to add a new page.

Renaming Pages

iOS

Tap the Edit button. Tap on the name of a page to rename it.

Mac

Select the page from the sidebar and press the Return key to rename the page.

I find that with SwiftUI that all you have to do is select the page to change the page name. I consider it a bug.

Deleting Pages

iOS

Tap the Edit button. Tap the minus button next to the page you want to remove. Tap the Delete button to finish deleting.

Mac

Select the page and press the Delete key to delete a page.

You may have to press the Esc key afer selecting the page to select the page instead of renaming it.

Interesting Files

The ContentView.swift and PageListView.swift files have the code for creating a master-detail interface.
The Wiki.swift and Page.swift files have the code for working with file wrappers.
The PageListView.swift and Wiki.swift files have the code for list item removal.
The PageListView.swift file in the iOS folder has code for disabling the text fields in the page list until someone taps the Edit button on iOS.

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Comments

How to save/open a core data file in the "package" file

Is it possible to create/open a core data file from this Package ?

In the init() function could one create an NSPersistentContainer in the main directory and then have the MOC as a variable on the FileDocument ?

Similarly in the fileWrapper() function could one just call the MOC.save() method.

I am guess this seems to easy - unless perhaps one creates an in memory database in init() and then writes that to file in fileWrapper()

Any thoughts on whether this might be feasible ?

opened by duncangroenewald 1

To disable textfield for edit mode on iOS13

As we can't use .onChange on iOS 13 here is solution with .onReceive: .

onReceive(Just(editMode?.wrappedValue)) { newValue in
                        if (newValue != nil) && (newValue!.isEditing) {
                            disableTextField = false // Edit button tapped
                            } else {
                            disableTextField = true // Done button tapped
                            }
                    }

You just have to import Combine, works the same

opened by LukaszDziwosz 0