John O'Reilly
@joreilly
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• Software Engineer @neatmeetings 🇳🇴 • Kotlin @GoogleDevExpert • Open-source #KMP projects at • Blog at
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Joined May 2008
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Summary of open source Kotlin Multiplatform samples (with platforms supported and key libraries used). The UI in all cases is implemented using either Compose or SwiftUI.
Confetti
🔗
✅ Android, Wear OS, Android Auto, Automotive OS, iOS, Compose for
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29
153
Top Shot is pretty nice feature
#madebygoogle
. In general some great photo related features in new Pixel 3 (both from hardware and software)
Capture smiles, not blinks. With Top Shot, Pixel 3’s camera is smart enough to know a good photo when it sees it.
#madebygoogle
77
709
2K
2
41
320
🎉 I'm really excited to announce that I'm now a
@GoogleDevExpert
for
#Kotlin
! 🎉🥳
#GDE
It’s an absolute joy to be part of this community! Big thank you to everyone that contributes to making it that way! 🙏💚
79
3
338
Popular apps using Kotlin Multiplatform (
#KMP
) in 2023 — and what you can learn from them by Jacob Ras
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47
332
Just came across this....web based wizard to create new Kotlin Multiplatform project . Looks really useful!
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Kotlin Multiplatform compatible ViewModel APIs! 🚀
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261
I've been working as a native mobile developer for 14 years now and that ecosystem has been on a trajectory of constant improvements over that time. Other approaches come and go, but native development continues to be the dominant tech used for developing mobile apps.
8
34
257
Migrating Duolingo’s Android app to 100% Kotlin
3
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244
Android & iOS native vs. Flutter vs. Compose Multiplatform by Jacob Ras
Good to see that using KMP doesn't add much to app size (on either Android or iOS)
10
34
247
Kotlin Multiplatform Development Roadmap for 2024 via
@kotlin
Following should be interesting!
"The main initiative in this area is a direct Kotlin-to-Swift export. It will eliminate the Objective-C bottleneck, allowing for broader Swift language support
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46
235
This day 5 years ago at Google I/O we learnt about this new thing called Compose....and fair to say I think that we never looked back!!
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10
210
Build an iOS & Android app in 100% Kotlin with Compose Multiplatform by
@sebi_io
#iOSDev
#AndroidDev
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37
195
Jetpack Compose: The Android Developer Roadmap – Part 5
This post explores fundamental concepts of Compose...very nice summary!
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36
195
As we approach 2022, really feels like following combination is the sweet spot for mobile app development productivity!
#iOSDev
#AndroidDev
- Jetpack Compose/SwiftUI
- Kotlin/Swift
- Kotlin Multiplatform shared non-UI code
- GraphQL
- Swift 5.5 Concurrency
10
22
186
Kotlin 1.5 out, Compose for Web Tech Preview release, Compose for Android close to stable release, Compose for Desktop maturing, Kotlin Multiplatform going from strength to strength along with huge increase in interest.....fun time to be developing in
#Kotlin
ecosystem!! 😀
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34
188
If you're starting off with Kotlin Multiplatform in 2023 really recommend using:
✅
#KMM
plugin or preferably existing sample as starting point
✅ KMP-NativeCoroutines for interacting with suspend functions/flows etc in shared code from iOS client
✅ KMM-ViewModel if sharing VM
7
37
184
Just created new minimal
#KotlinMultiplatform
sample -. Includes use of:
-SwiftUI
-Jetpack Compose
-Android ViewModel
-Koin
(article below provided inspiration for "People In Space" API I used - thanks
@kenkousen
!)
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36
179
Looks like Kotlin Coroutines 1.3.6 just got released
Includes "StateFlow" which I know many people were looking forward to.
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40
178
The Iguanas have arrived! 😀
#AndroidDev
Welcome to the family
@androidstudio
Nightly!
Get it here for those that really want to be on the bleeding edge:
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16
171
Impressive looking Kotlin Multiplatform project (by
@_joelkanyi
). Some very slick UI (using Compose Multiplatform)!
3
30
175
Nice new
#Kotlin
feature that is hoped to be available not long after Kotlin 2.0.
#KotlinConf
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21
172
@JakeWharton
and
@jessewilson
talking about Redwood, a Compose Kotlin Multiplatform framework that uses native UI toolkit on each platform. Will be very interesting to see how this develops!
#dcnyc22
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8
172
So, achievement unlocked, got to talk this year about Kotlin at an iOS conference and Swift at an Android one 😀
8
0
169
Kotlin Flows Animated
Nice visualisation of how a number of Flow intermediate operators work.
2
23
172
Impressive looking Kotlin/Compose Multiplatform project
6
24
160
After over 5 years working on KMP I've finally come to conclusion that it's not for me. From now on I plan on diving deep in to the world of React Native.....have already started work on gradually migrating samples I have over to it.
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2
162
Jetpack Paging now support Kotlin Multiplatform (thanks in large part to CashApp's multiplatform-paging project)!
#KMP
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163
kotlinx.coroutines 1.8.0 released (includes support for Wasm)
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160
Android Support for Kotlin Multiplatform to Share Business Logic Across Mobile, Web, Server, and Desktop Platforms 🚀
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Look what's on its way!
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156
Excited to see this arrive this morning. I still feel you can't beat physical books for material like this!
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151
This looks very interesting....imminent 1.6.10-beta01 release of Compose Multiplatform
🚀 Experimental multiplatform support of Lifecycle and ViewModel
🚀 Experimental multiplatform support of Jetpack Navigation
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19
145
Probably won't take people too long but could you tell at a glance here which is Kotlin and which is Swift?
#iOSDev
#AndroidDev
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14
141
With Compose for iOS alpha being announced at
#KotlinConf
I thought it was good time to rebase the Confetti compose_ios branch () used in this article!
Any guesses which one below is SwiftUI and which is Compose? 😀
Wrote a short article about exploring use of Compose for iOS for one of the screens in the SwiftUI application that's part of the Confetti
#KMM
sample (.).
#iOSDev
#AndroidDev
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142
Compose Multiplatform support for Coil image loading library on it's way!
3
18
140
It's the small things! Example in new Android Studio Flamingo Canary 3 showing dependency updates available when using version catalogs (from Confetti sample in this case)
#AndroidDev
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Wrote (very!) short post about using new KMM-ViewModel () library to share view model between the iOS and Android clients in Confetti ) sample. Thanks
@RickClephas
@BoD
and
@martinbonnin
for looking over it!
5
29
136
Cool to see Kotlin/Wasm based Compose for Web option now enabled at
3
19
139
Wrote very short article showing example of how aligned the implementations of iOS and Android ViewModels can be when consuming Flows from shared Kotlin Multiplatform code .
#KMM
#iOSDev
#AndroidDev
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136
If you're writing any
#KMM
code then you're probably going to need
@russhwolf
's Multiplatform Settings library ().
It will by default use SharedPreferences on Android and NSUserDefaults on iOS....and, as in this example, settings can be exposed as Flows
8
13
135
KDoctor - command-line tool that helps to set up the environment for Kotlin Multiplatform Mobile app development >> looks useful
4
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132
This arrived in the post the other day! Congrats
@nrobir
...huge achievement writing a book like this!
#KMM
#AndroidDev
#iOSDev
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133
The future looks bright for mobile app development!
#iOSDev
#AndroidDev
#KMM
- Jetpack Compose/SwiftUI
- Kotlin/Swift
- Much the same mechanism for managing concurrency now on both platforms
- Kotlin Multiplatform for sharing non-UI code (with KMM now in beta!)
6
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Protect your code from Gemini in Android Studio
1
25
131
I was slow to really appreciate the full power of Compose Multiplatform. Have been working on a few projects recently created with and it's incredible how much you can get up and running so quickly!
Big 🙏 to
@jetbrains
folks that made this happen!
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11
130
#JetpackCompose
+
#SwiftUI
+
#KMM
=
most productive, pragmatic, low-risk (and fun!) approach to mobile app development
Just saying 😀
10
18
126
Sending ViewModel Events to the UI in Android
Nice overview of Google’s new, opinionated, guidance on handling "ViewModel Events". As mentioned, this approach simplifies some areas but does add other requirements that must be met for it to work.
6
26
125
Software Architecture is Overrated, Clear and Simple Design is Underrated
5
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125
Testing Kotlin coroutines on Android
Essential reading covering a range of scenarios you can encounter when unit testing async code on Android.
2
15
124
How to share ViewModels in Compose Multiplatform by
@plcoding
Very nice tutorial using Jetpack ViewModel (and it's recent KMP support) and Koin libraries.
5
18
126
kotlinx coroutines 1.7.0 released...lots of changes but important one to note related to
#KMM
- "Old K/N memory model is no longer supported". The end of an era!
4
25
125
#AndroidDev
has really hit a productivity sweet spot with combination of following...very clear now where changes need to be and also most of the classes are *much* smaller and more readable
- Kotlin
- ViewModel
- LiveData
- Single Activity
- Navigation Component
- Data Binding
4
26
121
Cool to see this added.
#koin
🚀 Exciting News! Koin 3.5 is here! 🎉
🔄 Kotlin & 3rd party libs updated to 1.9.x
🛠️ Introducing koin-bom for version management
🧰 Internal optimizations & fixes
➡️ Check out the release notes:
#Koin
#kotlin
#androiddev
#jetbrains
#cloudinject
0
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2
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124
"Kotlin Multiplatform Template" by
@wiyarmir
Includes:
- Backend project with Ktor
- Frontend project with KotlinJS and React Kotlin
- Android App project with KotlinJVM
- iOS App project with KotlinNative
- Shared network, domain and presentation
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122
Version distribution shown when creating new project in Android Studio (updated, as shown, on August 4th). What minSdkVersion are folks using these days?
#AndroidDev
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And F is for.....Flamingo! New Android Studio Canary with Electric Eel going to beta ().
Flamingo based in IntelliJ 2022.2.1 (which includes lots of nice
#KMM
related updates/fixes!).
#AndroidDev
5
12
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How much time has been wasted by not including following by default in AndroidManifest.xml....I forget to add it every frickin time!!
<uses-permission android:name="android.permission.INTERNET" />
13
4
120
Getting the native iOS look & feel in your Compose Multiplatform app by Jacob Ras
Nice illustration of use of the Compose Cupertino library
0
14
115
Things every Kotlin Developer should know about Coroutines. Part 5: Cancellation
0
22
115
UI layer (from Google's guide to
#AndroidDev
architecture)
Really nice guide that also highlights I think role that ViewModel can provide. Been a lot of discussion about whether VM is still needed (and in particular AAC one) but this shows again its value
6
24
115
If updating to AGP 8.0.0 note there's a few breaking changes. Ones I've had to apply here:
- namespace required in each module
- R classes are now non-transitive
- buildConfig now false by default (need to update as following if needed)
buildFeatures {
buildConfig = true
}
Android Studio Flamingo is now stable! 🎉 🦩
This version brings updates to UI tools like Live Edit, build tools like one-click automated profileable build and run, and more.
Get the details and download the latest version →
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512
6
23
111
Version of KSP compatible with Kotlin 2.0 just released
1
12
112
Compose Multiplatform 1.5.10 released!
1
19
109
Navigation Compose on every screen size
Very nice explanation and also interesting example of use of relatively new movableContentOf()
#JetpackCompose
#AndroidDev
3
23
110
Using Jetpack Room in Kotlin Multiplatform shared code
Wrote short article about steps taken to add Room to the FantasyPremierLeague KMP sample.
3
14
111
Compose UI components for iOS
Still work in progress but looks very interesting!
1
16
110
Dynamic Island meets Kotlin Multiplatform! 😀
Hacked some small updates to the Live Activities branch of BikeShare
#KMM
sample () to show content (from shared code) in dynamic island (based again on article from
@SwiftyAlex
)
#iOSDev
5
6
109
Some very big Kotlin, KMP and Compose related updates coming down the road (first 3 hopefully this year and last one likely in 2024)!
👉 Kotlin Multiplatform going stable
👉 Kotlin 2.0 including K2 Compiler
👉 Kotlin/Wasm alpha (enabling Compose for Web)
👉 Compose for iOS beta
4
16
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Getting the native iOS look & feel in your Compose Multiplatform app
2
12
107
Writing software for close to 40 years now and the biggest lesson I should know by now (but still forget!) is....change one thing at a time!
5
4
108
Getting ready for my first talk of the year....at the top of a mountain in Norway! Get to talk about Kotlin and Compose Multiplatform to my colleagues! 🇳🇴
4
2
108
Google Developers Blog: Jetpack Compose compiler moving to the Kotlin repository
🚀 Big step forward in simplifying project setup (across Jetpack Compose and Compose Multiplatform). More docs at
0
22
107
New basic Kotlin Mutliplatform sample to exercise Gemini Generative AI APIs (using
@JetBrainsKtor
with REST version of Gemini APIs - ).
UI is using Compose Multiplatform running on iOS, Android, Desktop and (Wasm based) Web.
4
9
106