The SwiftUI cookbook for navigation The new navigation API’s look great.New grid layout and layout protocol for custom layouts. New shape styles for gradients, drop shadows. Tables and customizable toolbars on the iPad. Resizable sheets and control improvements. Data driven programmatic navigation stacks and split views. Apple has fixed many of my pain points (and feedback reports). Meet Swift Async Algorithms Summary of the Async Algorithms open source package for producing values over time.Visualize and optimize Swift concurrency New Swift Concurrency template in Instruments to visualize concurrency code.Opt-in for stricter concurrency checking. Actors isolate mutable state, are sendable, and run one task at a time. Sendable types for sharing data between tasks. Eliminate data races using Swift Concurrency Lots of tips on adopting concurrency.Swift Regex: Beyond the basics A deeper dive into using Regex.Meet Swift Regex Regular expressions come to Swift.Meet distributed actors in Swift Extending Swift’s actor model for distributed systems.Combine this with the previous session on generics and you’ll be up to speed on a key change in Swift 5.7.
#Swiftui pdfkit how to
Embrace Swift generics A great explanation from Holly Borla on when and how to use generics.Swift concurrency improvements including opt-in safety checks and distributed actors. Swift package command and build tool plugins. What’s new in Swift Recap of changes to Swift 5.7.What’s new in Swift and the Swift Package Manager.
There’s no padding and Apple’s engineers get to the point quickly. There are a lot of sessions, but many are short (10-20 minutes). The video player supports from 0.5x to 2x playback, most videos have transcripts and allow copying of the onscreen sample code. I watch the videos using the Apple Developer app. Don’t burn yourself out trying to keep up. Many of the new API’s need iOS 16 so it may be a while before you can use them. You may feel like you’re getting left behind. There are ~175 sessions and a huge amount of new stuff to learn. You don’t have to learn everything new today! The best way to build an app is with Swift and SwiftUI. If you’re in doubt about where we’re headed here’s a quote from Josh Shaffer: Watch the Platforms State of the Union (SOTU) for a summary of what’s new.
#Swiftui pdfkit pdf
So in this article I’ll write about PDF specific stuff as the image gallery was a better example of how to scroll views efficiently.My WWDC 2022 viewing guide to help you plan the sessions you want to watch. I wrote about scrolling images in a UIScrollView in another post Let’s start with the UIScrollView containing views with single PDF pages.Īs I mentioned before this was the solution I had to implement a few years ago, I cut some corners for the Swift porting as I don’t expect to use this in production now that iOS supports it in the framework. Using a Webview is so simple I didn’t feel the need to write the example, I’m sure there are tons of them available. Where I put two implementations: the scrollview with PDF pages and the one with PDFView.
#Swiftui pdfkit code
Recently I wanted to port my Objective-C code to Swift and I decided to share the implementation, so I created this GitHub project I started working on the custom solution back when we didn’t have WKWebViews nor PDF Kit, so my only alternatives were displaying PDFs in a UIWebView or implementing a custom solution. The third alternative is drawing PDF pages and place them on a UIScrollView. In iOS 11 Apple introduced a new class PDFView, a subclass of UIView that comes with a configuration, so you can have side-by-side pages, vertical and horizontal scrolling and many more options. I said we have 3 ways to show the PDF and we just saw one, so what are the remaining two? The only downside is the scrolling is only vertical, which is fine for most apps but you may want to provide some customisations, for example the ability to scroll horizontally and to have two pages side-by-side in landscape. Just like loading a local page, or a remote one, you can provide the URL of the PDF and the WKWebView will take care of it. There are three possible ways of displaying a PDF. It could be a privacy policy document, an invoice, a flyer the company distributes on paper and via its app, a magazine. Showing PDFs is pretty common for an iOS app.
0 kommentar(er)
