Opinionated Notes

elixir

A Possible Solution

I'm reading another book. It's called Programming Elixir >= 1.6 [https://pragprog.com/titles/elixir16/programming-elixir-1-6/] and it puts the fun in functional. Throughout this book, there're several exercises to deepen the reader's knowledge. And, of course, there's a PDF with solutions [http://media.pragprog.com/titles/elixir16/Elixir_1.

swift

Open Mobile Maps for iOS

A native mobile SDK for OpenStreetMap-map-data on iOS and Android.

Google Analytics

No revenue from the past in Firebase

This week, my boss asked me to look into an issue with Firebase and Google Analytics: The revenue generated from an Android-app didn't show up, although it was visible in the Google Play Developer Console.

swift

Reorder some rows but not all

I'm still writing iOS-apps using Swift and UIKit instead of SwiftUI — I've never been one of those cool kids using the latest tech, and my 100 days of SwiftUI lasted for 33 days or so. Maybe I should give it another chance. But today I found some nice things in

Dash and Xcode 12

During my day job as an iOS developer I heavily rely on Dash [https://kapeli.com/dash]. Basically, I have no idea what I'm doing and Dash helps me to cover that. Well, it was helping me: Something went wrong with Xcode 12 and so the Apple API-docs in Dash

100daysofswiftui

100 Days of SwiftUI — Day 33.2

So, it took me some  time to work through todays learning material more thoroughly than last time [https://zeitschlag.net/100-days-of-swiftui-day-33/]. Welcome to day 33, part 2 [https://www.hackingwithswift.com/100/swiftui/33]. It was a good idea to re-read this. It feels like I gained a deeper understanding

100daysofswiftui

100 Days of SwiftUI — Day 32.2

Well, let's say, I needed a break for like a whole month. From time to time I had a bad conscience that I kind of stopped, but let's call it a break. The last time I rushed through the animation-parts and that broke my neck when it came to the

100daysofswiftui

100 Days of SwiftUI — Day 33

Wow, another day [https://www.hackingwithswift.com/100/swiftui/33] with animations and transitions! Although I have to admit, that I'm not very talented — or used to, at least — when it comes to designing things — and animations especially — I really, really like to fiddle around with them. It's so much

100daysofswiftui

100 Days of SwiftUI — Day 32

Today's Day 32 [https://www.hackingwithswift.com/100/swiftui/32], time for another technique-project to learn new things: This time, it was about animations — and they were really fun! A few weeks ago, I built some animations and transitions. And today it was pretty impressive to see how easily I

100daysofswiftui

100 Days of SwiftUI — Day 31

Well, Day 31 [https://www.hackingwithswift.com/100/swiftui/31]: It's review time again! I had to answer twelve questions — I scored 12 out of 12! — and solve three challenges to improve the game called WordScramble. To be honest, I wasn't very creative when solving those questions, but that's fine

100daysofswiftui

100 Days of SwiftUI — Day 30

Aaaaaand I'm done with Day 30 [https://www.hackingwithswift.com/100/swiftui/30]. After having learned about UITextChecker and Lists yesterday, I put them to use today. I also learned how to use onCommit with Textfield [https://developer.apple.com/documentation/swiftui/textfield] and onAppear [https://developer.apple.com/documentation/

100daysofswiftui

100 Days of SwiftUI — Day 29

Another day, another small blogpost about my progress. I kind of get used to this daily blogging-thing and I really like it! Day 29 [https://www.hackingwithswift.com/100/swiftui/29] was the first day of the fifth project, which will be another small game. I learned about List [https:

100daysofswiftui

100 Days of SwiftUI — Day 28

I missed yesterday, as life got in my way [https://zeitschlag.blog/2020/06/28/i-spent-the.html]. But I didn't want to miss today, too, so I sat down before going to bed and just did Day 28 [https://www.hackingwithswift.com/100/swiftui/28]: It was review time, again.

100daysofswiftui

100 Days of SwiftUI — Day 27

Today I implemented the fourth project [https://www.hackingwithswift.com/100/swiftui/27]. It's a fun little app that helps you calculate when you should go to bed. It takes some parameters (when do you want to wake up? How many hours do you want to sleep? How many cups

100daysofswiftui

100 Days of SwiftUI — Day 26

I just finished the 26th day [https://www.hackingwithswift.com/100/swiftui/26] aka second day in a row 🎉🥳 For the first time ever, I did something with Core/Create ML [https://developer.apple.com/documentation/coreml], as this is part of the 4th project: I trained a model! I

100daysofswiftui

100 Days of SwiftUI — Day 25

This is the first time in ten days that I attended the SwiftUI-course by Paul Hudson. I'm taking a few days off from work right now, but the week before my vacation was pretty stressful and I didn't have the energy in the evenings. So I missed a few days.

100daysofswiftui

100 Days of SwiftUI — Day 24

Day 24, or as Paul says: Project 3, part 2 [https://www.hackingwithswift.com/100/swiftui/24]. There were some challenges, in which I had to change the former projects to use a view composition, conditional modifiers and I had also to create a custom ViewModifier next a View -extension.

100daysofswiftui

100 Days of SwiftUI — Day 23

Day 23 [https://www.hackingwithswift.com/100/swiftui/23], so this is the 23rd blogpost. I learned about more details of SwiftUI: Why it uses structs, how to create my own custom modifiers and how I can compose views from different structs, which conform to the View-protocol. So, this was

100daysofswiftui

100 Days of SwiftUI — Day 22

Today was another challenge day [https://www.hackingwithswift.com/100/swiftui/22], this means: I had to change some code of the GuessTheFlag-project and answer some questions afterwards. It didn't take a lot of time and right now, on a friday evening, I'm quite happy about it. I partially solved

100daysofswiftui

100 Days of SwiftUI — Day 21

After playing around with colors and gradients yesterday [https://zeitschlag.net/100-days-of-swiftui-day-20/], I just finished the 21st part [https://www.hackingwithswift.com/100/swiftui/21]. I learned about some more modifiers today. For example, adding shadows to elements is pretty easy in SwiftUI. And adding shapes. And borders. I still

100daysofswiftui

100 Days of SwiftUI — Day 20

I just finished Day 20 [https://www.hackingwithswift.com/100/swiftui/20] — and it unexpectedly totally brightened my day! Today was the introduction day for the second project. Paul talked about the different stack types in SwiftUI, button, alert — and colors and gradients. And suddenly, I couldn't resist anymore, I

100daysofswiftui

100 Days of SwiftUI — Day 19

Today, at Day 19 [https://www.hackingwithswift.com/100/swiftui/19] was the challenge day — and it was great! Basically, you had to build a unit conversion-app from scratch. Paul gave some examples on units and some tips and tricks — and then you were on your own. As I enjoyed

100daysofswiftui

100 Days of SwiftUI — Day 18

Wow, it's already the 18th day [https://www.hackingwithswift.com/100/swiftui/18] . Nearly one fifth is done! 🥳🥳🥳 Today I reviewed the small app we built as a first project using SwiftUI, there as little exam and then there were three challenges to solve. Those were about changing the UI

100daysofswiftui

100 Days of SwiftUI — Day 17

I like, how the first project is structured: Yesterday, there was a little introduction with all the basics and today was implementation day [https://www.hackingwithswift.com/100/swiftui/17]. The task was to build a little form and do a pretty simple calculation. Most of the time, SwiftUI makes

100daysofswiftui

100 Days of SwiftUI — Day 16

Technically, today yesterday — as I forgot to write this exact blogpost — was the first day of this whole thing I spent writing some SwiftUI-code. Nevertheless, it was already day 16 [https://www.hackingwithswift.com/100/swiftui/16]. It was a very nice little introduction to this whole topic. I immediately