Fragmented - AI Developer Podcast

Latest Episodes:

010: Boning Up on Core Java with Michael Bailey Jun 23, 2015

Show notes

In this episode Donn and Kaushik talk to the very talented Michael Bailey about core Java principles and practices. Michael has quite the deep and passionate understanding of Java and we thought it would only be perfect to share this episode with a very passionate Java crowd - Android developers. We talk about IntelliJ, Testing, Inheritance, Static Code analysis, Garbage Collection, Data Structures and much more in this episode. If you're looking to learn a thing or two about Java, then this is your episode. We hope you enjoy.

Show Notes

elapsedRealtimeNanos for getting wall time [developer.android.com]
Android Pay announcement [officialandroid.blogpost.co.uk]

Intellij information:

Curated list of IDE plugings by Jetbrains [blog.jetbrains.com]
Key promoter plugin [plugins.jetbrains.com]
Productivity Guide [jetbrains.com/help]
Extending + Shrinking selection [jetbrains.com/help]

Testing talk:

Google acquires Appurify [techcrunch.com]
Cloud Test Lab (erstwhile Appurify) [developers.google.com/cloud-test-lab]

Great books on improving your Java skills:

Gang of Four [amazon.com]
Effective Java (2nd Edition)- Joshua Bloch [amazon.com]

Effective code review technique (WTFs a minute) [cryhavok.org]

On inheritance:

Item 15 : Design and document for inheritance or else prohibit it
Item 16 : Favor composition over inheritance
Chris Banes on using AppCompatDelegate [twitter.com]

Static code analyzers:

Checkstyle, PMD, Findbugs [github.com]
Android Lint [developer.android.com]
Findbugs [sourceforge.net]
PMD [sourceforge.net]
blog post setup static code analysis tools [vincentbrison.com]
Infer by Facebook [code.facebook.com]
John Carmack In-Depth: static code analysis [gamasutra.com]

Garbage collection:

Google IO 2011 talk [youtube.com]
Medium article - Garbage Collection[medium.com]
LeakCanary by Square [github.com]
What is meant by immutable [stackoverflow.com]

Data structures for Android

ArrayMap (Android alt. to HashMap) [developer.android.com]
SimpleArrayMap [developer.android.com]
SparseArray (Android alt. to mapping int -> Objects) [developer.android.com]

Benchmarking DS:

Caliper [github.com]
Vogar examples [code.google.com]
ADB Ep. 27 (forEach quirks) ( minute 9:07) [androidbackstage.blogpost.com]
Coding for performance blog post [devahead.com]
See Item 21 in Effective Java (Ed. 1) about typesafe enum patterns (this was before enums existed)
Null safety in Kotlin [kotlinlang.org]
Mondegreen [wikipedia.org]
Mad Gab

Awesome picks:

Michael:

Learn how to file high quality bug report for Android tools [tools.android.com]
List of Android conferences [androidstudygroup.github.io]
GTAC 2015 conference [googletesting.blogpost.com]
Developing for Android - blog post series by Google developers [medium.com]

Kaushik:

library: Android-ReactiveLocation [github.com]
Google App for Donation OneToday [onetoday.google.com]
An article discussing the case between Oracle vs Google [techdirt.com]

Donn:

Vote for my android talks at DroidCon NYC! :)
Anker Charging Station [amazon.com]
22$ Standing Desk [iamnotaprogrammer.com]

Contact

Michael Bailey

@yogurtearl [twitter.com]

Donn Felker

@donnfelker [twitter.com]
donnfelker.com

Kaushik Gopal

@kaushikgopal [twitter.com]
kaush.co

009: Google IO Special Jun 03, 2015

Show notes

This is the special Google I/O 2015 episode. In this episode - Kaushik makes the trek to Google I/O and chats with various Android developers about their favorite part of Google IO. I was not able to make it but Kaushik was able to interview of top developers in the industry and I’ll tell you what - this is a great episode - I really wish I was there to join him. I know he had a great time chatting and interacting with everyone. We hope you enjoy the show as much as we enjoyed creating it.

Show Notes

Dan Lew (Trello)
- @danlew42 - twitter.com
- Dan's Blog - danlew.net
Ty Smith (Twitter)
- @tsmith - twitter
Eric Cochran (IFTTT)
- NightlyNexus - github
- +EricCochranNightlyNexus - plus.google.com
Cyril Mottier (Capitaine Train)
- @cyrilmottier - twitter
- About page - cyrilmottier.com
Shifty Jelly Team
- Pocket Casts - pocketcasts.com
- Philip Simpson
- @geekygecko - twitter.com
- Russell Ivanovic
- @rustyshelf - twitter.com
Amanda Hill (Venmo)
- @mandybess - twitter.com
Dave Smith (New Circle)
- @devunwired - twitter.com
- +DaveSmithDev - plus.google.com
Corey Latislaw (CapitalOne)
- @corey_latislaw - twitter.com
- coreylatislaw.com
Chet Haase
- @chethaase - twitter.com
- Android Backstaage - blogspot.com
Chiu-ki Chan
- @chiuki - twitter.com
Elliott Chenger (Under Armour)
- @echenger - twitter.com
- blog - omitneedlesscode.com
Maria Neumayer (Citymapper)
- @marianeum - twitter.com
Danny Roa (Foursquare)
- @dannyroa - twitter.com
Michael Bailey
- @yogurtearl - twitter.com
Donn Felker
- @donnfelker - twitter.com
- donnfelker.com
Kaushik Gopal
- @kaushikgopal - twitter.com
- kaush.co

008: Pocket Casts Amazingness with Philip Simpson May 19, 2015

Show notes

In this episode, we talk to Philip Simpson, one of the rockstar developers of the amazing Pocket Casts Android Application. We learn about how Philip and his partner, Russell, started Shifty Jelly and how they grew their team from a two-person shop to a small staff all while creating one of top apps on Google Play, Pocket Casts. We also talk about some of the tools, tips and tricks that they've used to help them scale, grow and become more effective as indie app developers. We eventually hop into some deep talk about audio software and all kinds of tech in general. If you've always wondered what it takes to be an indie app developer then this is the episode for you - Philip does not let us down.

Show Notes

Pocket Casts
Pocket Weather (for Australia) [play.google.com]
Phil’s stuff
- LG 34” Ultrawide curved monitor (that Phil uses) [amazon.com]
- device test lab [twitter.com]
- Android cheatsheet [gist.github.com]
- Audio effects and features in Pocket Casts [blog.shiftyjelly.com]
Marco Arment
- Accidental Tech Podcast [minute 1:10 he talks of using Go for podcast feed parsing] [atp.fm]
- Build and Analyze podcast (now retired) [5by5.tv]
Pocket Cast Web client [play.pocketcasts.com]
Pocket cast gets sync [lifehacker.com]
Pocket Casts supporting service:
- Pingdom (monitoring uptime)[pingdom.com]
- MySql
- Mongo
- MariaDb
- HockeyApp
Android latency:
- Android latency problem [superpowered.com]
The Tonight show starring Jimmy Fallon (with Billy Joel) [youtube.com]
- Looper app (iOS only :( )
Pocket Casts 3rd party libs
- Butter Knife
- Android Universal Image Loader > Picasso
- Material Dialog library [github.com]
- SnackBar [github.com]
- Mr.Vector (now deprecated) [github.com]
  - Victor by Trello [github.com] (Friend of the show - Dan’s library that we also talked about)
StartUp podcast (by Gimlet media) [gimletmedia.com]
Android Device Dashboard (showing OS breakup)

Awesome picks:

Philip:

Android tool for mac [github.com]
- Makes it easy to take screenshots, videos, run scripts, bug reports..
37 Signals - Getting Real [37signals.com]
- A book Phil read when we were starting Shifty Jelly

Donn:

Sidekick By HubSpot [getsidekick.com]
- Allows you to see when someone has opened your email etc.
Tim Ferriss Show with Noah Kagan [fourhourworkweek.com]
- Great productivity hacks for everything and overall great show
Grammarly Chrome Extension [chrome.google.com]
- Fix your grammatical errors before the internet fixes them for you.
10 Lessons from 4 Years Working Remotely [whenihavetime.com]

Kaushik:

Custom View Groups- engineer at Facebook [wordpress.com]
LeakCanary by Square

Contact

Philip Simpson

Donn Felker

@donnfelker [twitter.com]
donnfelker.com

Kaushik Gopal

@kaushikgopal [twitter.com]
kaush.co

007: Jake Wharton on Testing, SqlBrite, NotRxAndroid, RxJava and Much More May 06, 2015

Show notes

In the final part of this two-part segment, we continue our talk with Jake Wharton. We dive right into the topic of testing. Jake then talks about his approach to testing apps in Android and the different languages that he finds interesting. We then move on to RxJava, NotRxAndroid, SqlBrite and many other libraries and topics to round out this great second episode. Again, we'd love to thank Jake for joining us here on the Fragmented Podcast show; it has been an honor. We hope you enjoy it as much as we did.

Show Notes

u2020 Demo App by Jake [github.com]
- Real Intent Factory [github.com]
- Fake Intent Factory [github.com]
- Slides on Real/Fake Intent Factory [speakerdeck.com - DroidCon Presentation]

Server side frameworks with Java

Jersey [jersey.java.net]
Jax-rs [jax-rs-spec.java.net]
Go [golang.org]

Other languages

Jake on using Kotlin for Android [plug.google.com]
Kotlin (by JetBrains) [kotlinlang.org]
Anko [github.com]
Kotlin Android Extensions [kotlinlang.org]
Annotation processing for Groovy code [gradle.org]

Non-Square libraries that Jake uses

RxJava [github.com]
AutoParcel [github.com]

StickyListHeaders [github.com]

SQLBrite [github.com]

NotRxAndroid [github.com]

Awesome picks:

Donn:

Android Testing is ten years behind http://philosophicalhacker.com/2015/04/17/why-android-unit-testing-is-so-hard-pt-1/
SquiDB is Yahoo’s new SQLite layer for Android: https://github.com/yahoo/squidb

Jake:

Diversify Your Learning
- Rust - http://blog.rust-lang.org/2015/04/10/Fearless-Concurrency.html
- Internals of Git - https://codewords.recurse.com/issues/two/git-from-the-inside-out
- GZip Encoding - http://jvns.ca/blog/2015/02/22/how-gzip-uses-huffman-coding/
- Java 10 value objects - http://cr.openjdk.java.net/~briangoetz/valhalla/specialization.html

Kaushik:

Contact

006: Jake Wharton on Becoming a Better Developer and Creating Successful Open Source Projects (Part 1) Apr 29, 2015

Show notes

In part one of this two-part segment, we talk to the one and only Jake Wharton. He gives us the scoop on how he operates day to day, what he looks for in a good Android developer and how to become a better Android developer. He also touches upon the various sources and non-Java platforms that he draws inspiration from. Finally, he talks about open source and gives tips on leading an open source project.

Show Notes

Follow up:

Michel Panzer on UIL [plus.google.com]

Episode topics:

ActionBar Sherlock [github.com]
Jake’s working environment
- Square Github Styles [github.com]
- No tabs in Intellij [hadihariri.com]
Android source code browsing:
- Android SDK Search by Roman Nurik [chrome.google.com]
- Download the Android AOSP Source [source.android.com]
- AndroidXref [androidxref.com]
- Grepcode Android [grepcode.com]
Device Platform Versions [developer.android.com]
non-Java languages and platforms to draw inspiration from:
- Go [golang.org]
- Rust [rust-lang.org]
- CycleJs [github.com]
Droidcon Montreal keynote by JW and JW [youtube.com]

Contact

Jake Wharton

@jakewharton [twitter.com]
jakewharton.com

Donn Felker

@donnfelker [twitter.com]
donnfelker.com

Kaushik Gopal

@kaushikgopal [twitter.com]
kaush.co

005: Image libraries for Android Apr 17, 2015

Show notes

In this episode of Fragmented, Donn and Kaushik start off by discussing the tips and tricks available for efficiently loading images in an Android app. Good image libraries make use of these techniques and perform all the heavy lifting in the background. So they then discuss the different image library options available for Android developers.

Show Notes

Techniques/tips on effective image rendering in Android:

Bitmap sizes and allocation:

Displaying bitmaps efficiently [developer.android.com]
RGB_565, ARGB_888 and other different bitmap configurations[developer.android.com]
Android Camera2 apis [developer.android.com]
Chet Haase DevByte : Bitmap allocation [youtube.com] (bitmaps managed in Dalvik heap post 3.0; so large bitmaps implies large heap implies GC could happen more often)

Reuse bitmaps:

inBitmap option for Android 3.0 and later [developer.android.com]
before Android 4.4 only equal sized bitmaps with inSampleSize 1 supported[developer.android.com]
Reusing bitmap objects on Android[booking.com]

Downsample bitmaps

Load a scaled down version into memory [developer.android.com]
- see code for calculateInSampleSize

Caching

Cache Algorithms - see LruCache [wikipedia.org]
LruCache object in Android [developer.android.com]
JakeWharton DiskLruCache [github.com]
Don’t use Soft or Weak References for your Caches [developer.android.com]
Android Performance Pattern DevByte - why 60fps [youtube.com]

Image libraries for Android:

Picasso by Square [github.com]
- fetch introduced in V 2.5.0 (Changelog) [github.com]
- Picasso doesn’t do bitmap recycling
- Jake Wharton’s thoughts on Picasso not having a bitmap pool [github.com]
Glide [github.com]
- github issue where author explains tags being used to store metadata[github.com]
- Glide does bitmap recycling
Ion
- DeepZoom with Ion [youtube.com]
- Uses BitmapRegionDecoder to implement DeepZoom[developer.android.com]
Volley
- Ficus Kirkpatrick introduces Volley in Google.IO [youtube.com]
- Doesn’t come with an image caching mechansim out of the box[stackoverflow.com]
Fresco
- Introducing Fresco [code.facebook.com]
- Romain Guy concern over native api call [twitter.com]
Other noteworthies that we did not discuss:
- Universal Image Loader Library comparisons by others:
Picasso vs Glide [inthecheesefactory.com]

Image library comparisons:

JesseWilson on Picasso vs Fresco :P [twitter.com]
JesseWilson Picasso:Glide :: Coke:Pepsi [twitter.com]
Image comparisons by Koushik Dutta [plus.google.com]
Volley vs Picasso [bignerdranch.com]

Awesome picks:

Contact

Donn Felker

@donnfelker [twitter.com]
donnfelker.com

Kaushik Gopal

@kaushikgopal [twitter.com]
kaush.co

004: The RxJava show with Dan Lew (Part 2) Apr 01, 2015

Show notes

In this episode of Fragmented, Donn and Kaushik continue their conversation with Dan Lew on RxJava. In the final part of this 2 part series, they talk about many useful RxJava operators and other intricacies of using RxJava in Android.

Show Notes

RxJava Operators:

Observable.just [reactivex.io]
Observable.from [reactivex.io]
Observable.defer [reactivex.io]
- Using defer to handle “Old, Slow Code” [blog.danlew.net]
Observable.map [reactivex.io]
Observable.flatmap [reactivex.io]
- map vs flatmap (alchemist and cheese shredding analogy [reddit])
Observable.zip [reactivex.io]
Observable.combineLatest [reactivex.io]
Observable. switchMap [reactivex.io]
Observable.distinctUntilChanged [reactivex.io]
Observable.lift explanation [reactivex.io]
Observable.compose
- Don’t break the chain (using compose) [blog.danlew.net]
Observable.filter [reactivex.io]
Observable.take [reactivex.io]
subscribeOn vs observeOn [stackoverflow.com]
Understanding debounce, buffer, debouncedBuffer [nerds.weddingpartyapp.com]

RxJava Components:

Subjects: when is it appropriate to use [.net but still applies] [[davesexton.com] 19]
Implementing an event bus using RxJava [nerds.weddingpartyapp.com]
RxJava plugins [github.com]
- RxJavaDebug plugin - for hooking to start/end/error [github.com]
.toBlocking() [reactivx.io]
Composite Subscriptions [reactivex.io]

Retrolambda

Retrolambda library [github.com]
Retrolambda gradle plugin [github.com]
Common Issue with Retrolambda (NoClassDefFoundError) [github.com]

Hot vs Cold observables - From the RxJs wiki [github.com]

uses js instead of java, but concepts are the same and this is the best explanation I’ve found so far.

RxJava wiki on Backpressure [github.com]:

Ring buffer size: System.setProperty("rx.ring-buffer.size", "128");
Issue with changing buffer ring size [github.com]
It’s 16 on Android, down from 1024 originally. :P So it’s actually 64x smaller.

Awesome picks:

Dan Lew:

Simple Made Easy (talk by Rich Hickey creator of Clojure) [infohq]
Victor by Trello (SVG assets) [github.com]

Donn:

Realm Object Database [realm.io]

Kaushik:

Therapeutic Refactoring (talk by Katrina Owen) [youtube.com]

Contact

Dan Lew

@danlew42 [twitter.com]
Dan Lew’s blog [danlew.net]

Donn Felker

@donnfelker [twitter.com]
donnfelker.com

Kaushik Gopal

@kaushikgopal [twitter.com]
kaush.co

003: The RxJava show with Dan Lew (Part 1) Mar 18, 2015

Show notes

In this episode of Fragmented, Donn and Kaushik interview Dan Lew - druid of RxJava & RxAndroid! In part 1 of this 2 part series, we find out more about the one they call Dan Lew. We ask Dan how he started off as a developer, how he stays on top of development, where he draws inspiration from for amazing Android development and much more. We then begin disarming the glorious beast that is RxJava touching upon it’s benefits and begin discussion of some common operators.

Show Notes

Dan’s open source contributions:

Joda-Time Android [github]
- Why developers hate Timezones [youtube]
Gfycat [github]
Victor by Trello [github]

Staying on top of Android Development:

Android Weekly
Android Dev Digest
Google RSS reader app - gReader
androiddev [reddit]
Best Book on learning Java [Effective Java: Joshua Bloch]

Dan’s favorite apps:

Android Games that Dan plays

Working Remotely:

Getting started with RxJava:

Dan Lews RxJava Series
Learning RxJava with Android by example [nerds.weddingpartyapp.com]
Android-RxJava [github.com/kaushikgopal]
Intro to Rx you’ve been missing [gist]

Rx

002: Android Studio Mar 03, 2015

Show notes

In this episode of Fragmented, Donn and Kaushik talk about the official IDE for Android development – “Android Studio”. Why should you care about your IDE? Is Android Studio really open source? What are some of the advantages of using Android Studio? How can you customize and tweak Android Studio so you take your android development game to the next level? Listen to this episode and find out. The awesome picks for this episode are particularly awesome too.

Shownotes

Android Studio (official IDE):

Google announces Android Studio [Google I/O 2013]
Developer frontpage – Android Studio is the official editor [developer.android.com]

“Open source-ness” of Android Studio:

IntelliJ open source platform for building IDEs [jetbrains.org]
Eclipse plugin ADT [developer.android.com]
Build Android Studio from command line [tools.android.com]
Jake Wharton’s u2020 Demo App

Environment customizations:

Kaushik’s Android studio environment (codestyle, livetemplates, keymap etc) [github.com]
Chris Kempson – original theme [chriskempson.com]

Annotation Magic:

A look at Android support animations [anupcowkur.com]
Support Annotations [tools.android.com]
Contract Annotations [blog.jetbrains.com]
Tools prefix: Tools of the trade by Sebastiano Poggi

Learning Android Studio resources:

Donn Felker Android Studio Tips:
- Screencasts on Android Studio
- Android Tools Book – Android Studio Chapter (FREE)
Philippe Breault [developerphil.com]:

The most important things on the internet:

Awesome picks:

Stetho

Dan Lew’s RxJava Series

Rounded ImageView:

Rounded Bitmap drawable usage[gist]
Evelio blog post on different approaches to creating rounded image views
Chris Banes For questions, comments or suggestions you can reach us at

@donnfelker and @kaushikgopal

001: Welcome & Testing in Android Feb 17, 2015

Show notes

Welcome to the very first episode of Fragmented. Donn and Kaushik talk about why they started the podcast, the structure of the podcast and a little about who they are. The main topic for this episode is Testing! What are the benefits of testing, in general? Why does testing specifically help Android developers? What is the state of testing in Android and how does one test in Android?

Shownotes

Testing Links

Sample Android Testing Projects

Google Samples

Awesome picks:

Device Lab
Inconsolata-dz font for development
Consolas font for development For questions, you can reach us at

@donnfelker and @kaushikgopal

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Fragmented – AI Developer Podcast

Show Notes

Intellij information:

Testing talk:

Great books on improving your Java skills:

On inheritance:

Static code analyzers:

Garbage collection:

Data structures for Android

Benchmarking DS:

Awesome picks:

Contact

Michael Bailey

Donn Felker

Kaushik Gopal

Show Notes

Show Notes

Awesome picks:

Contact

Philip Simpson

Donn Felker

Kaushik Gopal

Show Notes

Server side frameworks with Java

Other languages

Non-Square libraries that Jake uses

Awesome picks:

Contact

Jake Wharton

Donn Felker

Kaushik Gopal

Show Notes

Follow up:

Episode topics:

Contact

Jake Wharton

Donn Felker

Kaushik Gopal

Show Notes

Techniques/tips on effective image rendering in Android:

Bitmap sizes and allocation:

Reuse bitmaps:

Downsample bitmaps

Caching

Image libraries for Android:

Image library comparisons:

Awesome picks:

Contact

Donn Felker

Kaushik Gopal

Show Notes

RxJava Operators:

RxJava Components:

Retrolambda

Hot vs Cold observables - From the RxJs wiki [github.com]

RxJava wiki on Backpressure [github.com]:

Awesome picks:

Contact

Dan Lew

Donn Felker

Kaushik Gopal

Show Notes

Dan’s open source contributions:

Staying on top of Android Development:

Dan’s favorite apps:

Android Games that Dan plays

Working Remotely:

Getting started with RxJava:

Rx

Shownotes

Android Studio (official IDE):

“Open source-ness” of Android Studio:

Environment customizations:

Annotation Magic:

Learning Android Studio resources:

The most important things on the internet:

Awesome picks: