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There are 67 episodes with tag 'swiftui'   Clear search
  • Querying data with the @Query Macro

    #572

    Leveraging SwiftData for Persistence

    In this episode we will provide a searchable interface using the @Query and #Predicate macros. We'll discuss how to use localizedStandardCompare instead of lowercase and other limitations of predicates. We'll also implement a solution for adding dynamic data to the query.

  • Building forms to create and edit models with SwiftData

    #570

    Leveraging SwiftData for Persistence

    We learn how to build a form in SwiftData. We cover how to use the .sheet modifier to present a new view for creating or editing artist records. We also cover creating the state for the form, presenting the sheet, and creating the form itself. We also implement a scratch model context to ensure that our changes can be discarded if the user taps the Cancel button.

  • Inserting and Deleting records with the ModelContext

    #569

    Leveraging SwiftData for Persistence

    This episode discusses how to work with the ModelContext in a SwiftUI app to insert and delete data. The ModelContext can be accessed through the ModelContainer, which is set up in the environment automatically. The @Query macro is used to retrieve artists from the database and iterate over them. We also implement swipe to delete using the onDelete modifier.

  • Implementing a Command Design with Combine

    #564

    macOS Mastodon Client

    Last time we left off where keyboard shortcuts weren't quite working the way we wanted. In this episode we take the time to explore the various options we tried and why they don't work. We address this by implementing a key handling system in AppKit and publishing these as commands to SwiftUI using a Combine subject. This wraps up our series on Building a Mastodon client for macOS!

  • Image Gallery Navigation

    #563

    macOS Mastodon Client

    In this episode we page between images in a post using some custom navigation buttons. When doing this we encounter an issue with implementing keyboard shortcuts for these buttons where a SwiftUI helper just doesn't work. For the fix we'll have to wait for the next episode.

  • Image Zoom Gesture & Keyboard Shortcuts

    #562

    macOS Mastodon Client

    In this episode we handle zooming into images using a gesture on the trackpad or with ⌘+/- on the keyboard.

  • Aligning and Zooming Images

    #561

    macOS Mastodon Client

    When tapping on an image, we want to open a new window with that image, but have it expand from the position in the gallery on the post. To do so, we have to do some window manipulation using NSPanel and some frame calculations.

  • Understanding and Fixing Hit Testing Issues

    #560

    macOS Mastodon Client

    In this episode we explore a little hit testing problem we have with our custom layout solution. We implement some techniques to help visualize and explain the problem and then ultimately fix it.

  • Opening Windows | macOS Coordinate System

    #559

    macOS Mastodon Client

    In this episode we dive a little deeper into how Windows can be opened using SwiftUI, then see how we can drop down to AppKit to customize it further. We'll learn about style masks and the different behaviors we have for positioning the window. Finally we use this knowledge to open a window with a selected image from a post.

  • Laying Out Images

    #558

    macOS Mastodon Client

    In this episode we show the post's images, using a custom layout algorithm to position multiple images in the space available for a post. Also, new icon!

  • ViewThatFits and Remote Images

    #554

    macOS Mastodon Client

    In this episode we continue with our post UI, making it adapt the layout to the available size using the ViewThatFits view in SwiftUI. Then we turn our attention to the avatars, which need to be fetched and displayed. We start with AsyncImage, but after a discussion we conclude that we will need more control over how the images are fetched and cached, so we implement our own RemoteImageView.

  • Mastodon Post UI and HTML Parsing

    #553

    macOS Mastodon Client

    In this episode we tackle showing a list of posts, which requires us to convert the network models into models more fit for the UI, parsing HTML in order to display as an AttributedString, and displaying the author information.

  • Showing the Timeline

    #552

    macOS Mastodon Client

    In this episode we take our authenticated session and use it to fetch the user's timeline on the selected server.

  • Adding OAuth Log in with ASWebAuthentication

    #551

    macOS Mastodon Client

    In this episode we complete our log in functionality using the AuthenticationServices and the keychain. We'll also see how we will represented an authenticated session using a new type, so that other parts of our code will have everything it needs to make authenticated calls to the API.

  • OAuth App Creation and Keychain

    #550

    macOS Mastodon Client

    In this episode we lay the foundation for the OAuth flow with Mastodon servers. We'll utilize KeychainAccess as a wrapper for the Keychain API, so that we can store secrets in a secure way.

  • Instance selection UI and transitions

    #549

    macOS Mastodon Client

    The first step to use Mastodon is to select your instance. You can browse a public timeline of that instance or you can log into that instance to see your own timeline. In this episode we will create a simple instance selection UI. We'll then use animated transitions to switch to the timeline view. Gui teaches us a new tip about debugging animations.

  • Starting a Mastodon Client for macOS from Scratch

    #548

    macOS Mastodon Client

    Gui Rambo joins us to build a Mastodon Client for macOS using SwiftUI. In this episode we'll show the app we'll be building and then start from a blank slate where we will cover some topics about how a SwiftUI macOS app is set up, how we can define some build settings using xcconfig files, and how to deal with building for different Apple Developer teams.

  • Multiple Selection & Inspector

    #547

    SwiftUI on the Mac

    In order to control the font, size, and color of various text elements we need a way to implement selection of one or more text elements. In this episode we will refactor our code to lift up some state into an observable object so that we can control the selected text items from another view outside the canvas.

  • Editing Text

    #546

    SwiftUI on the Mac

    To allow the user to edit the text elements, we'll add a binding for isEditing and swap out the Text element for a TextField. We'll then utilize onSubmit and a tap gesture to go in and out of the edit mode. Finally, using a derived binding, we can ensure that only one field is showing as editable at a given time.

  • Adding & Dragging Text Elements

    #545

    SwiftUI on the Mac

    In this episode we will add a toolbar button to add new text elements. We'll see how to quickly add a stroke around our text to make it readable. Then we'll implement smooth dragging to position the text elements on the canvas.

  • Memeify - Dragging Images

    #544

    SwiftUI on the Mac

    We start with a literal blank canvas. We'll use NSApplicationDelegateAdaptor and NSDocumentController with our SwiftUI app to ensure a new document is always created on launch. Then we'll introduce drag & drop behavior to allow a user to drag an image from the Finder to our app to display it.

  • SwiftUI on the Mac - Document Apps

    #543

    SwiftUI on the Mac

    We start looking at SwiftUI on the Mac. We'll go over how document-based apps work, and see how much functionality and standard behavior we can get with just a few lines of code. This will be the basis for a new app we'll make called Memeify.

  • Fixing Persistent Sorting

    #540

    Todo App in SwiftUI

    In this episode we fix an issue that caused our sorting logic to be lost after adding persistence.

  • Adding Persistence with Boutique

    #539

    Todo App in SwiftUI

    Now that we have a working Todo app, it's time to focus on persistence, so that our changes are kept when we launch the app. This will change the structure slightly, as we'll bring in a popular new library called Boutique and its Store to provide this facility. We'll also introduce the concept of a "controller", which is more of a model controller than a controller you might be familiar with in UIKit MVC.