Apple Apple Fairplay Streaming Overview Apple's FairPlay Streaming (FPS) is a DRM (Digital Right Management) technology used to securely deliver streaming media content to devices. It works with the HTTP Live Streaming (HLS) protocol. Here are some key points about FPS: * FPS allows content providers to encrypt content, securely exchange keys, and protect playback on...
Swift How to measure function execution time in Swift? Runtime code execution duration monitoring is crucial. Swift provides ContinuousClock to measures the time that always increments. The ContinuousClock acts like a stopwatch, measuring time relative to when a program starts or some other specific reference point. This is suitable for high resolution measurements of execution. 1. Measure function execution...
SwiftUI How to clear/reset SwiftUI Preview Caches? If you run into any SwiftUI Preview related issue, then there are high chance that you are facing that issue due to some cached preview data. Here are the steps to reset the SwiftUI Preview Caches: 1. Close Xcode. 2. Run the following command in the terminal: xcrun simctl --set...
Xcode Use Xcode 14 to run/debug code on iOS 17 or tvOS 17 As you might know, Apple doesn't include the iOS 17 or tvOS 17 device support files in Xcode 15. So, the old trick of copy-paste the device support files from newer Xcode to older Xcode is not possible. But there is a trick in Xcode 14 which you can use...
Xcode15 Fix Xcode 15 DT_TOOLCHAIN_DIR cannot be used to evaluate LIBRARY_SEARCH_PATHS, use TOOLCHAIN_DIR instead In Xcode 15 Apple changed the variable which points to the default toolchain location to $TOOLCHAIN_DIR from $DT_TOOLCHAIN_DIR. If some project/target used $DT_TOOLCHAIN_DIR then it need to be replace by $TOOLCHAIN_DIR. 1. Find DT_TOOLCHAIN_DIR Reference To find out where in your...
Swift Execute async/await method from Swift Command Line (CLI) Application Call an async/await function (with or without throws) from the Swift Command Line Application using the spacial @main attribute to prevent the CLI application from exiting before the asynchronous operation completes....
WireGuard How to set up WireGuard Client on Debian? WireGuard is an extremely simple yet fast and modern VPN. Setting up the WireGuard VPN client on Debian is straightforward. In this tutorial, we will set up WireGuard VPN client on Debian using nmcli. 1. Install WireGuard First of all, we need to install the WireGuard on your Debian Desktop/...
SwiftUI SwiftUI focusSection - UIFocusGuide Alternative for SwiftUI? Use the focusSection view modifier in SwiftUI as an alternative to the UIFocusGuide in UIKit to focus diagonally in tvOS apps by creating larger logical focus targets....
SwiftUI How to Create Custom Environment Values in SwiftUI? Create custom environment key values in SwiftUI using EnvironmentKey protocol and EnvironmentValues extension. The Environment property wrapper can read custom environment key values....
WireGuard How to set up WireGuard Client on Ubuntu? Install WireGuard Client on Ubuntu and import WireGuard VPN config file to connect with WireGuard VPN Server. Manage Ubuntu WireGuard Client using network manager CLI and GUI tool....
Ubuntu How to fix Ubuntu slow Wi-Fi internet speed? There might be multiple reasons for slow Wi-Fi internet speed on Ubuntu. We'll focus on the following two main reasons for the slow internet speed on Ubuntu. 1. Switch from 2.4Ghz band to 5GHz band First of all, check if your WiFi is using the 5GHz band, not the...
SwiftUI Implement Push Notifications in SwiftUI Application Add AppDelegate class with push notification callback functions to the SwiftUI app and link it with the SwiftUI app using the UIApplicationDelegateAdaptor property wrapper....
iOS Test Development/Production Push Notification using Apple Push Notification Console Apple announced the new Push Notification Console for testing the Development and Production push notification. The new Push Notifications Console makes it easy to send test notifications to Apple devices through the Apple Push Notification service (APNs). You can access logs that provide insights into the delivery process and leverage...
SwiftUI Add AppDelegate to SwiftUI app When we create a new SwiftUI project in Xcode then it doesn't include the AppDelegate which we might need for different functionality like push notifications. The new SwiftUI main app file looks like this - import SwiftUI @main struct SampleApp: App { var body: some Scene { WindowGroup { ContentView() } } } In order to...
iOS How to get a unique device identifier in iOS devices? As you might be aware, Apple puts lots of restrictions on unique identifiers because of privacy concerns. But in this article, we will look at some of the available options which can use to uniquely identify Apple (iOS, tvOS, and macOS) devices. 1. Store unique device identifier in KeyChain We...
