Danny Preussler, 🇺🇦 @PreusslerBerlin Twitter profile

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Danny Preussler, 🇺🇦

@PreusslerBerlin

4 years

I am doing Android full time since 2012 and partially even longer, I am a Google Developer Expert for Android but I still need to google how to set the application class in the manifest 🤪

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Danny Preussler, 🇺🇦

@PreusslerBerlin

2 years

Android development is hard these days 🤣 #dcbln22

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

Imaging writing Android code without these two buttons 😅🙈

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

When someone adds Dagger to your new #android project 😂 #AndroidDev

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Danny Preussler, 🇺🇦

@PreusslerBerlin

4 years

I finished university 20y ago, worked for 7 companies ever since, became GDE, did live coding on stage, did dozens of interviews from both sides of the table, but I'm still scared as hell when it comes to live coding in any job interview

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Danny Preussler, 🇺🇦

@PreusslerBerlin

2 years

Welcome to Berlin #dcbln22

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Danny Preussler, 🇺🇦

@PreusslerBerlin

6 years

time developer spends each day: trying to understand jira: 10% waiting for compiler: 25% weird Android Studio issues: 25% writing code : 20% looking for the right gif for a pull request comment: 20%

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

Nope but Android Studio did 🤪

Trecia Kat 👩🏽‍💻

@TreciaKS

3 years

As a developer, has coding taught you patience? 👩🏽‍💻

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Danny Preussler, 🇺🇦

@PreusslerBerlin

2 years

Lets go! 🥳 #GoogleIO #GoogleIO2022

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Danny Preussler, 🇺🇦

@PreusslerBerlin

1 year

Buy an M1 one they said! You'll never have problems with the CPU anymore, they said! Android Studio: Hold my beer! 😅

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Danny Preussler, 🇺🇦

@PreusslerBerlin

2 years

It's happening! 🥳 #GoogleIO

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Danny Preussler, 🇺🇦

@PreusslerBerlin

4 years

I have an Android studio joke but it's still building

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Danny Preussler, 🇺🇦

@PreusslerBerlin

7 months

Android devs mood 😁

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

Android API changes over time

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Danny Preussler, 🇺🇦

@PreusslerBerlin

11 months

He won't stop coding @_jumaallan

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Danny Preussler, 🇺🇦

@PreusslerBerlin

4 years

If we would all do planks while waiting for Android Studio builds to finish all Android devs would have perfect abs within a week 🤪

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Danny Preussler, 🇺🇦

@PreusslerBerlin

4 years

It can not be said often enough: LiveData has nothing to do in layers not related to UI! Keep it out of Repositories, DataSources! There use Flow or RxJava and only put LiveData in your ViewModels! It was very unfortunate that this was shown by Google as best practice. 😪

Jossi Wolf @[email protected]

@jossiwolf

4 years

Just published: Don't use LiveData in Repositories.

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Danny Preussler, 🇺🇦

@PreusslerBerlin

6 years

"ViewModel is the new Activity" now let's dump all the code in there 🤪

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

Chilling in Nairobi @_jumaallan @wangerekaharun @tamrefrank

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

I wished more companies would ask candidates to model or refactor code instead of looking at string manipulations and tree search questions. I believe the status of software worldwide would be in much better shape.

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Danny Preussler, 🇺🇦

@PreusslerBerlin

5 years

Android unit testing

Stephen Canning

@EssexCanning

5 years

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Danny Preussler, 🇺🇦

@PreusslerBerlin

11 months

Don't drive and code! @_jumaallan on 🔥

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 months

100÷! I would not recommend writing native apps anymore! Just build a web app! Saying this as an Android GDE, feels very sad You need to sell your soul to the PlayStore to do anything more than web can do, and youll be busy catching up with API levels and libraries the next years

Donn Felker

@donnfelker

3 months

Mobile (Android and iOS) is getting harder and harder to develop for, and devs are leaving the platforms out of frustration and annoyance ...

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Danny Preussler, 🇺🇦

@PreusslerBerlin

11 months

Late night, Mr @_jumaallan still fixing things 10x engineer 😁

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

Love my new setup 😎

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Danny Preussler, 🇺🇦

@PreusslerBerlin

4 years

I might complain about Dagger here and there but it is an important part of the Android world and I work with it on a daily base. Therefore, I've written down some thoughts on how to use it and maybe how not to

Clean Dagger

Using Dagger without selling your soul. Pragmatic tips for lightweight dependency injection on Android.

proandroiddev.com

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Danny Preussler, 🇺🇦

@PreusslerBerlin

2 years

I remember how we said at I/O 2017 and agreed that w/o Kotlin we would have all done Flutter soon, Android felt dead. Fast forward 6 years: with what I've seen and heard the last days about the state of Compose and KMP, i feel the end of Flutter is near. Wdyt?

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Danny Preussler, 🇺🇦

@PreusslerBerlin

4 years

Extension functions are perfect to keep your data classes clean! #Kotlin May the power of Types be with you!

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Danny Preussler, 🇺🇦

@PreusslerBerlin

5 years

I'm happy to announce I'll be joining @SoundCloudDev soon. Getting the chance to work with talents like @nellyspageli @tandaradie @juliozynger @ccmtaylor + many more Can already say: best interviews I ever had 🥰 Actually applied there 6y ago already and failed! Never give up!

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Danny Preussler, 🇺🇦

@PreusslerBerlin

4 years

Remember when things on Android where stupidly hard? Getting less every day. Now @FMuntenescu about another small improvement that you run into all the time

Restore RecyclerView scroll position

You might have had the problem where a RecyclerView loses the scroll position when your Activity/Fragment is re-created. This usually…

link.medium.com

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

devs everyday 🙈

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

Interfaces can't have inline reified functions. But you can use an extension function to get around this. #kotlin

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Danny Preussler, 🇺🇦

@PreusslerBerlin

6 years

If developers worldwide could take all the time they waited in @androidstudio and use this in one combined project, they would have rewritten Android itself completely by now 😂

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

Maybe that remote work thing isn't as bad altogether 😂

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

A classic but so true 😂

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Danny Preussler, 🇺🇦

@PreusslerBerlin

11 months

I see a lot of Android devs who can't even write a three class application anymore without setting up Dagger first. They're lost without it. Maybe iOS devs are more pragmatic 🤷‍♂️

Maxim Kachinkin

@makzimi

11 months

Why do iOS developers don't like Dependency Injections? #iosdev #iosdeveloper #mobiledeveloper #AndroidDevs

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Danny Preussler, 🇺🇦

@PreusslerBerlin

4 years

If you want to return "this" in your methods (like for Robot or Builder pattern), make your function an apply block, so you save that repeated "return this" #kotlin

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Danny Preussler, 🇺🇦

@PreusslerBerlin

1 year

What a welcome, thank you @_jumaallan @wangerekaharun 🇰🇪

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Danny Preussler, 🇺🇦

@PreusslerBerlin

11 months

Hacking in the sun 🇰🇪

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

As an Android developer, I'd like to have a USB cable that only transfers data but does not charge the phone (and drain my laptop), so I can be more productive when not at my desk

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

Got used to paying with M-PESA 😎

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

Storing JSON in a SQL database

Brent Ozar

@BrentO

3 years

storing files in the database

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Danny Preussler, 🇺🇦

@PreusslerBerlin

4 years

I found Schroedingers Test: it passed and failed at the same time 😱

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

Morning HIIT workout with a view 🥰

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Danny Preussler, 🇺🇦

@PreusslerBerlin

4 years

Offend an Android developer with one word: CoroutineEventBus 😁

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Danny Preussler, 🇺🇦

@PreusslerBerlin

2 years

Android architecture best practices

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Danny Preussler, 🇺🇦

@PreusslerBerlin

5 years

@Sitzenbleibenhh @PolizeiHamburg Tja da wächst eine Generation heran die die Polizei als Beschützer der Rechten und mit #Polizeigewalt gegen alles vermeintlich Linke vorgehend erlebt. Und einen Staat der seine Bürger nicht dagegen schützt. Totalversagen auf allen Ebenen.

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

@AnaStanescu22 I never use the Android view, always project. My mental model is that of the directory structure and I don't want a different view of that in my IDE

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

Biggest productivity gain as Android developer you can do: always build from command line! Magnitudes faster than Android Studio and doesn't get slower overtime either.

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

App developers, can you please stop building your own image pickers! I'm very often unable to find the picture most of the time without the full power of Google Photos. Can't believe it's still a thing, especially in well-known apps like Instagram.

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

How can a notifications(!) bar use 4/5 of the screen's space for settings? 🤯 #Android12 is such a UX disaster

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Danny Preussler, 🇺🇦

@PreusslerBerlin

11 months

Me wearing @GDG_Nairobi shirt and @_jumaallan wears @droidconBerlin one! Android community connects!

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Danny Preussler, 🇺🇦

@PreusslerBerlin

2 years

Meeting your favorite developers from all around that world at #AndroidDevSummit

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Danny Preussler, 🇺🇦

@PreusslerBerlin

5 years

Google developers: you should modularize Android Studio: OMG you moved some files! I'm so confused

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

Damn, just had to google how to write for-each loop in #Java 😂

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Danny Preussler, 🇺🇦

@PreusslerBerlin

2 years

Waiting for Android Developer Summit

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Danny Preussler, 🇺🇦

@PreusslerBerlin

11 months

Before party hard comes work hard Breakfast with @_jumaallan

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Danny Preussler, 🇺🇦

@PreusslerBerlin

11 months

Berliner specialty for @_jumaallan from @Vertigo87

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Danny Preussler, 🇺🇦

@PreusslerBerlin

11 months

Ready for @droidconug ? We're coming tonight!

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Danny Preussler, 🇺🇦

@PreusslerBerlin

2 years

Thanks to M1 can finally work in the sun 🥳

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Danny Preussler, 🇺🇦

@PreusslerBerlin

6 years

Asking stupid algorithm questions in interviews does not mean you hire the best engineers 🙄

Facebook admits storing millions of user passwords in plain text files

Thousands of Facebook employees may have had access to people's Facebook and Instagram passwords

www.independent.co.uk

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Danny Preussler, 🇺🇦

@PreusslerBerlin

4 months

Tell me that you don't understand Services in Android 🙈

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

Anyone knows any Android developers with experience in Android development? 😂

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Danny Preussler, 🇺🇦

@PreusslerBerlin

2 years

operator overloading in #Kotlin is powerful Here used for #JetpackCompose to "combine" two functions in a very readable way

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Danny Preussler, 🇺🇦

@PreusslerBerlin

8 months

Yes! Please stop testing with mocks! They have their place but start making your tests actually useful!

Increase Test Fidelity By Avoiding Mocks

This article was adapted from a Google Testing on the Toilet (TotT) episode. You can download a printer-friendly version of this TotT e...

testing.googleblog.com

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Danny Preussler, 🇺🇦

@PreusslerBerlin

11 months

Engineers fixing a bug in production

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Danny Preussler, 🇺🇦

@PreusslerBerlin

4 years

While we are discussing RxJava vs Flow, Google uses Java with Guava's ListenableFuture in their Corona reference app, stay tuned, let's see what's next 😂

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Danny Preussler, 🇺🇦

@PreusslerBerlin

4 years

I wanted to make an Android design joke but I only got the iOS specs

Isra Ferrer Camacho

@rallat

4 years

I have a joke about Android dev but I am not sure how to bring the keyboard up.

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

How about we log the error right on the screen? 😅

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

It has been two years already @SoundCloudDev , a great journey. Looking forward to the next two

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

And if you ever had to work with Recycler view, LazyColumn is paradise 😁

Amit Shekhar

@amitiitbhu

3 years

Android Developers, If you have built the apps using ListView, then only you will appreciate the RecyclerView #AndroidDev

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Danny Preussler, 🇺🇦

@PreusslerBerlin

5 years

Kotlin? Flutter? Android? Wo cares, let's be silly together #GDESummit2019

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Danny Preussler, 🇺🇦

@PreusslerBerlin

5 years

Love this!

Conor Smith

@conor_smith_dev

5 years

TIL: You can document a dependency using `because` in Gradle 💡

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Danny Preussler, 🇺🇦

@PreusslerBerlin

9 months

Android Studio to go! @Aidan_vii never stops coding 😁

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

how many times in your life did you forget this line? 😐

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Danny Preussler, 🇺🇦

@PreusslerBerlin

24 days

Learning from this year's #dcnyc24 : X has 6 Android engineers left while Reddit has 100+ I might not like Elon but 6 sounds right Hardly any app ever needs more than a dozen developers (SoundCloud has<10 in case you want to ask) If you have more you have an organizational problem

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Danny Preussler, 🇺🇦

@PreusslerBerlin

11 months

Finally bought my signed copy of the book from @madona_wambua

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

Sometimes I like working from home. While waiting for the green test arrow icon to appear next to the class in #AndroidStudio I had time to clean the kitchen floor. Now I' waiting for the tests to run... time to do the dishes 😂

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Danny Preussler, 🇺🇦

@PreusslerBerlin

8 years

So happy to announce that I was named GDE for android!!!! Another step on the long journey to mastery :-)

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Danny Preussler, 🇺🇦

@PreusslerBerlin

5 years

wow looking at the best practices for Dagger and ViewModel? Seriously? And I thought Dagger was a mess before. I want my Koin back 😭😭😭

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

How about both!? 😅 #androiddev #gradle #androidstudio

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Danny Preussler, 🇺🇦

@PreusslerBerlin

2 years

Don't use Flow<Boolean> or similar The information should be part of the payload(!) like LOGGEN_IN, LOGGED_OUT NOT of the variable name of the field. No one would noticed if we change: val isLoggedIn : Flow<Boolean> to val isLoggedOut: Flow<Boolean> #primitiveobsession

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

Got an upgrade of workplace

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Danny Preussler, 🇺🇦

@PreusslerBerlin

4 years

Sunny Winter day working from home #remotework #developerslife

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

@ItsMeKatyB In Germany you have to add money into a slot to unlock and you get it back when returning... Guess we didn't pass the test without 😅

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

damn, everyone thinks that's a background, but its real 😅

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

Let me correct this list. New list: ➖ Thanks for listening PS: you might have to learn the bullshit below for job interviews at FANGs so maybe just don't go there ;)

Sumukh

@Sumukhmg

3 years

Algorithms Every Programmer should Know 🧵👇

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Danny Preussler, 🇺🇦

@PreusslerBerlin

4 years

German Corona app for Android developed in the open 1st look shows: Room, ViewModels, LiveData, Navigation Also, code looks better than what Google built as a reference app themselve 👍 We need to talk about testing though 🤨

GitHub - corona-warn-app/cwa-app-android: Native Android app using the Apple/Google exposure...

Native Android app using the Apple/Google exposure notification API. The CWA development ends on May 31, 2023. You still can warn other users until April 30, 2023. More information: - corona-warn-a...

github.com

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 months

Celebrating 5 years at @SoundCloudDev ! Time flew: - I joined the Growth team - moved to Integration later - then took over the Android team Still, remember how much I enjoyed the people who interviewed me! People changed over time but I'm still surrounded by amazing folks here

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Danny Preussler, 🇺🇦

@PreusslerBerlin

2 years

Raved the streets with @_jumaallan last weekend #ravetheplanet #togetheragain

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

Some people wear masks, many not. Some people hug, some stay distance. Even the rooms have some distance seatings for those who want to. Love our we respect each other in these times. Everyone should feel safe and welcome. #dcbln21

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Danny Preussler, 🇺🇦

@PreusslerBerlin

11 months

Hakuna Matata - 🇰🇪 Selfie before my talk @droidconke

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Danny Preussler, 🇺🇦

@PreusslerBerlin

1 year

When you push the wrong flavor to the TV 😂

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

Today I'm giving another talk about TDD. One of the things I hear the most after these talks is that customers/managers won't give time to write tests. Why do you ask them? You are the professional! Clients do not pay you to deliver bad quality! You have to ensure quality!

Uncle Bob Martin

@unclebobmartin

5 years

Never ask permission to refactor. Never ask permission to write tests. You do these things because you KNOW they are the best way to go fast. When you ask permission, you are asking someone else to take responsibility for your actions.

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Danny Preussler, 🇺🇦

@PreusslerBerlin

3 years

Lately we adopted #coroutines at SoundCloud. To prepare telling the team more about testing, I'm watching my own talk 😅 Actually often I find answers to my own questions on my blog posts. Teaching is about learning and it creates great documentation

Effective Unit testing with Kotlin by Danny Preussler, sporttotal.tv...

This session was given at Paris Android Makers 2019 by Danny Preussler, sporttotal.tv.More info: http://androidmakers.fr/schedule/?sessionId=SCS-0941Kotlin c...

www.youtube.com

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Danny Preussler, 🇺🇦

@PreusslerBerlin

5 years

Need the proof that no one understands Dagger? Looks like new codelab creates a huge architectural mess just trying to explain it. 🙄

Vasiliy Zukanov

@VasiliyZukanov

5 years

@adamwp @ianhlake @Zhuinden That's an abomination! You have Dagger component injecting UserManager, and UserManager manages another Dagger component? Good job! You've just created the tightest coupling between code and DI framework I've ever seen (and I've seen a lot).

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Danny Preussler, 🇺🇦

@PreusslerBerlin

5 years

Looks like I'm speaking at Kotlinconf for the first time. And I'm very happy to be surrounded by auch an amazing line-up. See you there!

Jorge Castillo

@JorgeCastilloPr

5 years

The @kotlinconf lineup is up. See you all there! 🖤

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Danny Preussler, 🇺🇦

@PreusslerBerlin

5 years

Use Dagger, they said Annotation processing will save you, they said Only the One scales on large projects, they said Dagger replies: let me create this unused injector for some base class twice from different modules I'd better go to some island and farm coconuts

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Danny Preussler, 🇺🇦

@PreusslerBerlin

4 years

@relizarov @Louis_CAD Please write a post about this. Would be an interesting read I'm sure

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Danny Preussler, 🇺🇦

@PreusslerBerlin

11 months

My favorite meeting room at SoundCloud HQ

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