[ad_1] I have an iPhone app that presents information about a video playing on a kiosk-like device. The kiosk is running a python script that sends out video information via MQTT. The iPhone uses CocoaMQTT to listen for video information. When the information (title etc.) is received the app presents it modally in NowPlayingVC with…
[ad_1] Here’s a cool little challenge brought up this morning by a friend. Consider the following code: switch foo { case .a: return “a” case .b(let str) where str.hasPrefix(“c”), .c: return “c” case .b: return “b” } It won’t compile. When you bind a symbol for one pattern, you must bind that symbol for every…
[ad_1] This behavior has been fixed. As of Xcode 12.0 (the iOS 14.0/macOS 11.0 SDKs), sheets do inherit their environment. Unlike other views, modal sheets in SwiftUI do not inherit the environment from their parent. The environment is SwiftUI’s way to pass data implicitly to child views. Among other things, the environment contains app- or…
[ad_1] After months of hard work, the new edition of our Beginning iOS Programming with Swift course for iOS 15 and Xcode 13 is now officially launched. In addition to updating our course for iOS 15 and Xcode 13, this new update comes with two editions of the beginner book for UIKit and SwiftUI. Should…
[ad_1] Tim Condon Server-side Swift team lead @ raywenderlich.com Vapor expert and mobile developer who has dabbled in everything from reverse… Instructor Ehab Yosry Amer A very enthusiastic Lead iOS developer with a very diverse experience, from building games to enterprise applications and POCs,… Tech Editor Adriana Kutenko Graphic Illustrator with a Bachelor’s Degree in…
[ad_1] Create dynamic height UITableViewCell in Swift In this tutorial, we will learn how to create dynamic height UITableViewCell in Swift. To achieve dynamic height we will create multi line UILabel in UITableView using swift language. We will use the new UITableViewAutomaticDimension property. UITableViewAutomaticDimension property is a handy thing for iOS developers as it…
[ad_1] Jun 30, 2021 This is a maintenance release fixing mostly build issues. Changes FIXED: Enable building with bitcode FIXED: reduce iOS deployment target to 9 FIXED: DTWeakSupport was sometimes not found when building as part of DTCoreText FIXED: [DTASN1] Due to mismatch with protocol the parser was ignoring start end end messages for context…
[ad_1] Weak, unowned or strong subviews? I’ve got quite a lot of emails and tweets about this topic, so I decided to write about it, because it is really hard to find a proper answer for this question on the internet. There are some great posts and programming guides, some some articles…
[ad_1] I have seen this discussed a number of times, but I’m afraid I haven’t found a solution which works for me. Gven an AVAggregateAssetDownloadTask, when the user force quits the application, is there a way on launch to resume from where the app left off? I have tried a number of things: I have…
[ad_1] WWDC gave us many reasons to both migrate libraries to SwiftPM and to develop new ones to support our work. The integration between Xcode development and SwiftPM dependencies keeps growing stronger and more important. Apple’s Editing a Package Dependency as a Local Package assumes you’ll drag in your package to an Xcode project as a…
[ad_1] I’m writing a custom progress view in UIKit: My circular progress view One of the design goals for the view is to be a drop-in replacement for UIProgressView. This means it should model UIProgressView’s API and behavior as closely as possible. One important aspect of this is accessibility: ideally, my progress view should be…
[ad_1] It is very common that you need to display web content in your apps. The iOS SDK provides three options for developers to show web content: Mobile Safari, WKWebView, and SFSafariViewController. In iOS 14 (or later), the SwiftUI framework provides a view called Link for you to open a web link in mobile Safari….
[ad_1] Earlier we use Reachability classes to check for internet connectivity in iOS sdk. In swift, we commonly use cocoa-pod named Reachability to monitor for network changes. With iOS 12.0, apple provide a new framework named Network framework. In Network framework, we have one class named NWPathMonitor that monitor for network connectivity in iOS sdk….
[ad_1] Jun 30, 2021 This is a maintenance release mostly fixing build issues. Changes FIXED: Some weak support issues FIXED: Some warnings FIXED: Enabled bitcode FIXED: Missing weak for DTAccessibilityElement and view proxy FIXED: [Demo] About VC didn’t set correct content inset FIXED: Select correct fallbackFont with matching traits when multiple are available FIXED: Check…
[ad_1] 2022/02/16 A quick intro to modern collection views using compositional layout, diffable data source and reusable view components. UIKit Reusable views inside a generic cell We all love to create custom views for building various user interface elements, right? We also love to use collection views to display data using…
[ad_1] Me and my team have been developing a software that among other things takes measures on pictures, as you can see in this animation. Now we’ve been asked to make a mobile app with a subset of the desktop features, including the measuring tool.We decided to use React Native, because we’re a small team…
[ad_1] I got pulled into one of those conversations where I end up saying, “Fine, I’ll put up a post about it” and this is the post. Yes, you can test and run command-line apps directly from Xcode but I pretty much never do. It’s a pain with few benefits. That said, here’s how you do…
[ad_1] Text fragments are a way for web links to specify a word or phrase a browser should highlight on the destination page. Google Chrome added support for them in version 80 (released in February 2020). For example, opening the link oleb.net/2020/swift-docker-linux/#:~:text=running,container in Chrome should highlight the first heading of the article: Chromium highlighting the…
[ad_1] By using a combination of SwiftUI and WidgetKit, you can increase the visibility of your app’s content and enhance the user experience by placing one or more “widgets” on the user’s iOS Home screen, macOS Notification Center, and/or iOS Today View. Widgets should display your app’s most relevant content, allowing users to get important…
[ad_1] By default parameters in swift function are constant. It means you can not change parameters values from inside of the function in swift. Sometimes we need to get parameters value to be modified from inside the function. So here, inout parameters comes to rescue as inout parameter in swift act like a reference type….
[ad_1] When I started out developing iOS apps, 11 years ago I put several apps on the App Store. Since they became fewer and fewer as the income from them didn’t warrant updating them. Amongst those my most successful one was iWoman, which I sold in 2015. My second-most-valuable (in terms of revenue) remained my…
[ad_1] How to build a C compatible Swift library? In order to create a Swift library that’s going to work with C, we have to play around with unsafe memory pointers to create a C compatible interface. Fortunately I was able to find a nice example, which served me as a good…
[ad_1] I’m having this problem with fetch in React Native (on iOS 15.4): TypeError: Network request failed at fetch.umd.js:535:18 at JSTimers.js:214:18 at _callTimer (JSTimers.js:112:7) at Object.callTimers (JSTimers.js:357:7) at MessageQueue.__callFunction (MessageQueue.js:419:27) at MessageQueue.js:116:12 at MessageQueue.__guard (MessageQueue.js:370:9) at MessageQueue.callFunctionReturnFlushedQueue (MessageQueue.js:115:10) at debuggerWorker.js:69:58 …and I have seen many recommendations to modify the ios/[APP_NAME]/Info.plist file to allow HTTP requests….
[ad_1] You have some code you need to incorporate into a multi-line string. What’s the quickest and best way to handle it? Although I see people do this all the time, manually adding spaces to each line isn’t the best solution. Here’s a quick Xcode tip: First, paste your material into scope. Retain the indentation…
[ad_1] 🌲 As a little Christmas present to the community, we’re making our entire SwiftUI Layout Explained video series free to watch until the end of the year. 🌲 A central piece of every UI framework is its layout system, and SwiftUI is no exception. Without a good understanding of the layout system, building user…
[ad_1] GPX is a popular XML format for running or cycling tracks with geocoordinates. This is a how-to for cleaning up a GPX file by removing unwanted or privacy-sensitive information. Many apps that record workout routes and can export them as GPX files include more data than the plain GPS coordinates. For instance, a GPX…
[ad_1] Investment advise and scheduled investing goals Through notifications, you can suggest an apt plan for investment to your users. Investment decisions should be at their disposal through a scheduling option. It can be weekly, monthly, quarterly as per individual spending is concerned. Thus, this will increase the goodwill of your finance app. Apart from…
[ad_1] We’ve just released an update for our SwiftUI book – Mastering SwiftUI. All the content including screenshots and source code are updated for Xcode 13 and iOS 15. On top of that, we added new chapters to cover some new APIs introduced in iOS 15 (e.g. AsyncImage and Searchable). This SwiftUI book is written for…
[ad_1] iOS tutorial: Create a drop down using swift language in iOS In this tutorial, we will learn how to create a drop down using swift language in iOS app development. For creating a dropdown, we will use a cocoa-pod named “DropDown” by assistolab. Given below is the url for the pod documentation. You can…
[ad_1] I’ve been busy since I completely rewrote SpeakerClock in SwiftUI. That was version 1.2.0. The App Store provides a concept called Universal Purchase, which is where purchasing an app on one device also unlocks it on all other supported platforms. In the previous version I added a Mac version. This update now adds the…