Filip Němeček — iOS developer building apps and tools, with additional work in Python and Django. Shares practical articles, projects, and indie app work.
159 articles from this blog
A developer creates r/IndieAppNews, a subreddit for indie developers to share app launches and updates without strict self-promotion rules.
A SwiftUI developer shares practical code snippets and notes for using the Kingfisher library's KFImage component with various modifiers.
Explores an alternative to GeometryReader in SwiftUI using the onGeometryChange modifier to dynamically track view size for layout.
A developer shares a debugging story about a Core Data crash caused by an attribute name starting with 'new' in Xcode 15/16.
A guide for iOS developers on implementing tinted home screen widget support in iOS 18 using widgetAccentable and rendering mode modifiers.
A developer shares how implementing a 'Blinkist trial' strategy boosted trial starts and subscriptions for their Nintendo Switch companion app, SwitchBuddy.
A developer shares a solution for a SwiftUI shadow animation glitch that occurs during tab switching, using the .id modifier to force view recreation.
A technical guide for iOS developers on detecting and updating widgets for iOS 17's StandBy mode using the containerBackground API.
A developer shares UX insights on implementing subtle, integrated onboarding within an app to guide users without traditional tutorial screens.
A guide to hotfix iOS 17 widget issues: adopting the new containerBackground API and disabling extra padding for compatibility.
Tips for improving iOS share sheet UX using UIActivityItemSource and LPLinkMetadata for better previews and data control.
A technical guide to implementing iOS 16's 'Shared with You' APIs in third-party apps, including code examples and prerequisites.
A developer details debugging a SwiftUI widget crash caused by a CodableTextAttachment error when displaying images in text for just-released games.
A technical guide on implementing a 'double tap tab bar to scroll to top' feature in an iOS app using UITabBarControllerDelegate.
An interview with indie developer Alexander Sandberg on the strategies and preparation behind the successful Product Hunt launch of his time-tracking app, Balance.
A SwiftUI tip explaining how to use ContainerRelativeShape to automatically apply correct corner radii to subviews within widgets.
A technical guide on customizing iOS share sheet content for AirDrop using the UIActivityItemSource protocol in Swift.
A guide to enabling landscape orientation for a single screen (like a gallery) in a UIKit iOS app while keeping the rest of the app portrait-only.
A guide to implementing Dynamic Type support with monospaced digit fonts in iOS apps to prevent UI layout shifts.
An indie developer shares lessons learned after their document scanner app 'Scan it' was featured in Indie App Santa, leading to thousands of downloads and unexpected technical challenges.
