Saturday, February 13, 2021

How to run an Xcode project on an iOS device without payment for the US$99 Apple Developer account (2021)

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To run an Xcode project on an iPhone/iPad without paying US$99 for Apple Developer account, this error message may happen: Your development ...
3 comments:
Saturday, February 6, 2021

Xcode 11.6 (Swift 5.2.4) - Hello World and how to set the background color programmatically

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 code: import SwiftUI struct ContentView : View {     let screenWidth = UIScreen . main . bounds . width     var body : some View { ...
Wednesday, September 30, 2020

Installation of CocoaPods

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CocoaPods is a library dependency manager for macOS and iOS. To install, type in the terminal: sudo gem install cocoapods Reference: CocoaPo...
Thursday, August 27, 2020

Mac Technique: Ctrl + Alt + Del command for Windows on Mac

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For using the Ctrl + Alt + Del command for Windows with a Mac keyboard, hold the following keys: Control + option (alt) + fn + delete Refere...
1 comment:
Thursday, June 7, 2018

Complex numbers - simple calculations

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This example is tested with Xcode 9.2 playground in Swift 4.0.3. Basic complex number calculations such as the magnitude are includes as bel...
Friday, April 6, 2018

Mac Technique: How to Enable the Hidden Security & Privacy Option to Allow Apps from Unidentified Developers

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With macOS High Sierra 10.13.4, there is no option by default to allow apps from unidentified developers in   ->  System Preferences -...
Monday, April 2, 2018

Mac Technique: Dr. Eye Chinese-English Bilingual Dictionary with macOS 10.13.4 譯典通英漢雙向字典

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Dr. Eye (譯典通), a famous Chinese-English bidirectional dictionary, is now available free with macOS High Sierra 10.13.4 . After installing ...