Fragmented - AI Developer Podcast

Latest Episodes:

030: Material Design for developers with GDE Mike Wolfson Feb 29, 2016

Show notes

In this episode we talk to Material Design Master and Google Developer Expert Mike Wolfson. What does Material design mean to us developers? How does one use the numerous support libraries to help with this? What widgets should and shouldn't we be using? Listen to the show and find out.

Show Notes

Material Design - Official site
Material Design - The Specification
Google Color Palette - list of "approved" colors
Google Color Palette Library - picking colors from an image
Android Support Lib 23.2 video [twitter.com]
Resource for getting better at Material Design:

Contact

Mike Wolfson: Twitter Google+ mikewolfson.com
@fragmentedcast [twitter.com]
@donnfelker [twitter.com]
@kaushikgopal [twitter.com]

029: All about the infamous 65,536 dex method count Feb 22, 2016

Show notes

If you've been an Android developer in the last 2 years, you must have seen this dreaded exception: dex: method ID not in [0, 0xffff]: 65536

Quick googling would immediately bring up the phrase "65K method count" and the recommended solution "multi-dexing". But if you want to really understand this mysterious number and the reason behind its existence, listen on!

Show Notes

Official Dalvik specification [source.android.com] (look for invoke- prefix methods)
Android and the Dex limit (great post)
ADB Ep 11 : ART, pART 2 (Trash Talk) (discussion on ART)
MultiDexing [developer.android.com] (solution to your 65K method count woes)

Contact

@fragmentedcast [twitter.com]
@donnfelker [twitter.com]
@kaushikgopal [twitter.com]

028: Tips & Tricks for Android developers Feb 15, 2016

Show notes

Feast yourselves to a grand bonanza of tips and tricks with this episode! Donn and Kaushik talk about the tips and tricks they've picked up over the course of 2015.

Android Dev Summit demo - Structural replace [youtube.com]
Software Design patterns [wikipedia.org]
Reformatting code:
- Reformatting Source code [jetbrains.com]
- Reformat dialog [jetbrains.com] (only VCS changed text)
Library dependency management:
- JitPack (publishing jvm and android libraries)
- Internal library dependency managment - Kelly Shushter
Hadi Hariri on Fragmented Ep 20 talking Intellij shortcuts
Using UiAutomatorViewer to help write espresso tests - Ep. 23: Caster.io [caster.io]
git pre-commit hook [gist]
Intellij - work with embedded Terminal [jetbrains.com] (yes, you can customize btw zsh/bash)
KG's Update script - morning ritual [gist]
Cyril on Grid Spacing on Android [cyrilmottier.com] (showdividers/divider)
Tor's issue on maven vs jcenter [code.google.com]

Contact

@fragmentedcast [twitter.com]
@donnfelker [twitter.com]
@kaushikgopal [twitter.com]

027: Talking Realm with Christian Melchior Feb 05, 2016

Show notes

Realm pro and overall genius Christian Melchior joins us in this episode to talk about all things Realm.

Show Notes

Contact

@chrmelchior [twitter.com]
@realm [twitter.com]
@fragmentedcast [twitter.com]
@donnfelker [twitter.com]
@kaushikgopal [twitter.com]

026: LetMeExplainYou AndroidDev like a pro Jan 21, 2016

Show notes

In this episode Donn and Kaushik chat with the one and only Israel Ferrer Camacho (@rallat). They discuss a talk Israel gave sometime back on "Android development like a pro", exchanging war stories on patterns like MVP, MVVP clean architecture etc.

Show Notes

Rallat's slides [pdf]
Rallat's sample repo using different patterns [github]
Burrito Design Pattern [twitter.com]
Working Effectively with Legacy Code [amazon.com]
The Clean architecture [blog.8thlight.com]
Uncle Bob's talk on Vimeo

Awesome Picks:

Contact

@rallat [twitter.com]
@fragmentedcast [twitter.com]
@donnfelker [twitter.com]
@kaushikgopal [twitter.com]

025: Effective Java for Android developers : Item 7 Dec 28, 2015

Show notes

In this mini Fragment, we introduce Joshua's seventh Item and a momentous end to the first chapter: Avoid finalizers

Stay tuned for more items from our "Effective Java for Android developers" Fragment series.

Show Notes

Effective Java (2nd Edition) - Joshua Bloch

Avoid finalizers

If you don't know what they are, ignorance is bliss. If you know what they are, avoid them!
Finalizers in Java != destructors in C++ (C++ counterparts to constructors).
In C++ destructors
- you reclaim resources here (Java has GC)
- you also reclaim non-memory resources (use the try-finally block in Java)
(unpredicatable amt of time between object becoming unreachable and finalizer being executed) Never do anything time critical in finalizer!
- System.gc + System.runFinalization increase chances - no guarantee
- System.runFinalizersOnExit + Runtime.runFinalizersOnExit are the ones that do - but they are fatally flawed
Java 7 has try with resources, which is also interesting and auto-closeables. [Android] devs can only dream of these.
If an uncaught exception is thrown in a finalizer, it is ignored, and the finalization abruptly terminates.
Severe performance penalty for using finalizers - (one e.g.) time to create and destroy simple object goes from 5.6ns -> 2400ns
Only valid use: as a safety net or to terminate noncritical native resources.
[Android] you're probably better off using Android's lifecycle methods.

Contact

@fragmentedcast [twitter.com]
@donnfelker [twitter.com]
@kaushikgopal [twitter.com]

024: Effective Java for Android developers : Item 6 Dec 15, 2015

Show notes

Joshua's sixth Item: Eliminate obsolete object references , in a distinctively croaky voice.

Stay tuned for more items from our "Effective Java for Android developers" Fragment series.

Show Notes

Effective Java (2nd Edition) - Joshua Bloch

Eliminate obsolete object references

Supplemental reading (for the diligent ones that follow shownotes)

Do click listeners leak memory? [stackoverflow.com]
Square's LeakCanary
How to leak a context - Handlers and inner classes [androiddesignpatterns.com]
Avoiding Memory leaks [android-developers.blogspot.com]

Contact:

@fragmentedcast [twitter.com]
@donnfelker [twitter.com]
@kaushikgopal [twitter.com]

023: Android Dev Summit Recap Nov 30, 2015

Show notes

Donn and Kaushik cover the happenings of Google's very first Android Developer conference - "Android Dev Summit". Together, they attended the conference both virtually and physically! Listen on for the highlights.

Sessions

Android Dev Summit 2015 Keynote [youtube]
Android Studio for Experts [youtube]
Android Testing [youtube]
Firechat - Framework team [youtube]
Firechat - Android Tools and Testing team [youtube]

Sample projects

@fragmentedcast [twitter.com]
@donnfelker [twitter.com]
@kaushikgopal [twitter.com]

022: Effective Java for Android developers : Item 5 Nov 20, 2015

Show notes

In this mini Fragment, we introduce Joshua's fifth Item: Avoid creating unnecessary objects.

Stay tuned for more items from our "Effective Java for Android developers" Fragment series.

Show Notes

Effective Java (2nd Edition) - Joshua Bloch

Avoid creating unnecessary objects

Snippet to demonstrate AutoBoxing problems

// sum of all positive values
Long sum = 0L;
for (long i=0; i Integer.MAX_VALUE; i++) {
  sum+=i;
}

Contact:

@fragmentedcast [twitter.com]
@donnfelker [twitter.com]
@kaushikgopal [twitter.com]

021: Diving Deep with Dagger Nov 13, 2015

Show notes

In this episode, Kaushik and Donn dive deep into the Dependency Injection library - Dagger. We have a cameo by Dagger creator Jesse!

Show Notes

In other news

Dagger

Topological Sort

Jesse Wilson Cameo

Other great references

Jake Wharton - Architecting Android Applications with Dagger

Awesome picks:

Donn's picks:

Dagger 1 [caster.io]
Intro to RxJava for Android Developers [caster.io]
Intro to Realm for Android Developers [caster.io]
Custom Silicone earbuds [howtogeek.com]
DHH - Reconsider [medium.com]

KG's picks:

Cold start illusion [github.com]
Song Exploder - House of Cards [songexploder.net]
Song Exploder - Game of Thrones [songexploder.net]

Contact us:

@fragmentedcast [twitter.com]
@donnfelker [twitter.com]
@kaushikgopal [twitter.com]

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Snippet to demonstrate AutoBoxing problems

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