All Posts

• Upload image to server using URLSessionUploadTask
• Implement Push Notification easily using CloudKit
• How to perform action when user tap on push notification (foreground and background)
• Intro to creating UI in code (programmatically) part 2 / 2 - Create Auto Layout Constraint using NSLayoutAnchor
• Intro to creating UI in code (programmatically) part 1 / 2 - Create UI using initializer
• Difference between Try, Try? and Try!
• Fix (Workaround) for Xcode playground stuck in Launching Simulator or Running Playground
• Replicating Spotify's Now Playing UI using Auto Layout - Part 2 / 2
• Replicating Spotify's Now Playing UI using Auto Layout - Part 1 / 2
• Use multiple target / scheme for different server environment URL
• Smoothen your table view data loading using UITableViewDataSource Prefetching
• ELI 5 - Optional and jargons
• Test your app function without opening simulator and clicking 6 buttons
• Save custom object / type into UserDefaults using Codable
• ELI 5 - Delegate
• Tips for using Xcode Playground
• Parse JSON into struct / object using Decodable protocol
• How to return value from a closure?
• Overview of Closure in Swift
• Perform function (UI update etc) only after all the network requests have completed using Dispatch Group
• NSURLSession / URLSession tutorial for calling web API
• Making sense of Auto Layout Series
• Auto Layout not working Checklist
• What is constraint priority and how to use it
• What is intrinsic content size and the usefulness of it
• Why conflicting constraint happen and how to solve them
• Why missing constraints appear and how to solve them
• How Auto Layout calculates view position and size
• Frame based layout VS Auto Layout using constraint
• Check if user has purchased in-app item / product using Keychain
• 3 ways to pass data between view controllers (forth and back)
• How to use UIScrollView With AutoLayout in Interface Builder / Storyboard
• Show price in 2 decimal places using NumberFormatter
• How to view rounded corners, borders in Interface Builder
• How to run iOS app on another Mac's iOS Simulator