How to approach complex programming problems
Some tips and approaches how to tackle difficult problems. Including examples from my Chill Zones app.
Swift & iOSUseful tools: Lexi
Lexi is great little helper for working with JSON. Especially if you are dealing with complex JSON that has a lot of nesting.
SoftwareHow to select random record with Django ORM
This post details how I solved displaying random banner on this very site. The solution does not have any prerequisites.
DjangoHow to create new calendar using EventKit in Swift
Apart from reminders and events, EventKit framework also gives you the power to create new calendars for users. Let's see how.
Swift & iOSMinimal example of using Diffable Data Source with Core Data
The new Diffable Data Source is totally different way to setup Table Views and Collection Views. This example will get you started.
Swift & iOSTips on starting developer blog
Start a dev blog is not easy. I hope these tips may help on the journey.
MetaHow to create Core Data database from multiple model files
This is useful if you want to split your app into modules but still keep and manage only single database inside the main target.
Swift & iOSMy approach to setting up Core Data stack
This post details how I set up Core Data in my projects and also explains what and why. It includes working with background context.
Swift & iOSHow to use EKEventEditViewController in SwiftUI
My finished solution to bridging this view controller for creating new events and editing existing ones to SwiftUI.
Swift & iOSHow to use EKCalendarChooser with SwiftUI
Short post showing how to bridge this controller with SwiftUI and get selected calendars.
Swift & iOSHow to implement OCR with Vision framework in iOS 13+
The basics of getting OCR up and running plus a few tips and extra stuff you may want to know.
Swift & iOSHow to automatically switch debug/production database in settings.py in Django
Since settings.py is just an ordinary Python file we can use simple `if else` block.
DjangoHow to display fractions in Django
Short post about rendering for example 1/4, 1/2 and other fractions in your Django template. Turns out this is not complicated if you know about important parts to combine.
DjangoHow to create iOS reminders in code with alarms or recurrences
Create reminders in the Reminders app from Swift code with not that much code. Let's see how.
Swift & iOSiOS 14: Quick dive into the new UIColorWell
This looks like an ideal solution if you want to let user pick multiple colors.
Swift & iOSHow to create RSS feed with HTML content in Django
Presenting my solution which I arrived at with trial & error in hopes it could save time to someone.
DjangoiOS 14: What is new for WKWebView
JavaScript sandboxing. Support for JS promises, find on page and more!
Swift & iOSHow to setup CloudKit subscription to get notified for changes
CloudKit subscription offer best way to keep data up-to-date for your user. I will show you the simplest setup to get started.
Swift & iOSChecking out the new PHPickerViewController in iOS 14
Much better experience. No permissions required and multi-select!
Swift & iOSFirst look at the new UIColorPickerViewController in iOS 14
Super easy to setup and work with but with limited customization options.
Swift & iOSHow to save event into user's calendar
In this post we will use the EventKit framework to save event into user's default calendar.
Swift & iOSNon-SwiftUI wishlist for WWDC 2020
Better localization, replacement for NSAttributedString, improved querying with Core Data and more.
Swift & iOSHow to scan documents in under 10 lines of code
Thanks to VisionKit framework scanning documents is very easy with iOS 13 and up. In this blog post I will show you how.
Swift & iOSHow to deploy tvOS app to your Apple TV
I am writing this guide for myself and for other developers exploring tvOS in hope of saving them a lot of frustration.
tvOSHow to load events from user's calendar
In this post let's go over how to load events that user has in their system calendar.
Swift & iOSHow to create/register user account with Django Rest Framework API
My solution for account registration with DRF.
DjangoHow to get file size using FileManager + formatting
Turns out getting the byte size is quite quick. This post also shows how to use ByteCountFormatter to transform byte count into human-readable string.
Swift & iOSA few AutoLayout and general UIKit tips & tricks
A collection of tips that I found very helpful when building UI and why to avoid Table View Controller.
Swift & iOSiOS 13: launchOptions always nil? This is the reason & solution
launchOptions have moved and you find them in AppDelegate no longer.
Swift & iOSUsing WKWebView in headless mode
This is another short post about using `WKWebView`. Yet another useful use case can be to run `WKWebView` in the background, meaning user does not see it on the screen.
Swift & iOSHow to quickly remove duplicates from Array & keep order
Removing duplicates is swift in Swift thanks to the Set type. We can also leverage NSOrderedSet to not lose order of the items.
Swift & iOSHow to add badge to UIBarButtonItem
Badges on UIBarButtonItem are not natively supported but we can fix that with custom UILabel.
Swift & iOSHow to use EKCalendarChooser in Swift to let user select calendar in iOS
Leverage EventKitUI to let user select from their calendars.
Swift & iOSHow to let users send feedback using email app of their choice in iOS
Don't force your users to use Apple Mail. Offer them Outlook, Gmail or Spark.
Swift & iOSHow to create reusable UIView with .XIB file for easy design
Create cleaner project by leveraging reusable views with design done in .XIB files.
Swift & iOSHow to easily display files like PDF, documents, images and more in your app
Short guide demonstrating how to use QLPreviewController for easy file previews. It even supports ARKit models!
Swift & iOSHow to generate image previews/thumbnails of various files
Creating previews for files is breeze thanks to Quick Look framework. This quick guide will get you started.
Swift & iOSAdvanced string comparison and sorting in Swift
Going beyond standard contains() and hasPrefix() methods. Post explains locale-aware sorting and how to ignore diacritics.
Swift & iOSFew book recommendations that will make you a better developer
I have selected a few books from many I have read and wrote up why I think these are great choices for iOS developers.
Swift & iOSEasy way to temporarily cover whole screen of your application
Hide sensitive information when the app is visible in the app switcher or just prepare something cool for the users.
Swift & iOSDjango: How to send image file as part of response
Using Base64 might be useful in some scenarios.
DjangoDjango Rest Framework: How to let user add only one ForeignKey object (for example review)
My solution I decided to write up to have reference in the future.
DjangoSaving files into user’s iCloud Drive using FileManager
For my app Scan it I needed a way to save files into iCloud Drive and decided to share what I learned.
Swift & iOSHow to implement swipe to delete action with custom icon
Use trash icon (or any other image) instead of the standard "Delete" text.
Swift & iOSDjango: How to let user re-order/sort table of content with drag and drop
I needed to preserver order of table elements and decided to share my solution.
DjangoHow to use EKEventEditViewController in Swift to let user save event to iOS calendar
Short example showcasing the usage of EKEventEditViewController to let user edit and add events to iOS calendar.
Swift & iOSFour tips to level up your Swift
My first ever post about Swift! Unwrapping optionals in a loop, @autoclosures, cleaner range checking and easy randomness.
Swift & iOSHow to open target="_blank" links in WKWebView in iOS
Short post explaining why by default _blank links don't do anything and how to fix it with example code.
Swift & iOS