Fragmented - Android Developer Podcast

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 Google says - Avoiding creating unnecessary objects too Episode 10 with Michael Bailey - String optimization 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]

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 Donn in a Banana Suit KG as a Storm Trooper AndoridTO 020 – Talking Kotlin with Hadi Hariri Google entering podcast scene and we're on it Dagger Topological Sort Jesse Wilson Cameo Dagger Linker class Jesse's MiniGuice proof of concept Avoiding injects with library Assisted Injection for Dagger AutoFactory caster.io Activity Test Rule 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.co

A tonne of folks have been asking for a show on Kotlin. We got the best person in the business to take us through what could possibly be our new hope. Show Notes No tabs in Intellij [hadihariri.com] Jetbrains products Java - IntelliJ .Net - ReSharper CI server - TeamCity Issue tracking - YouTrack Smaller IDES Web/Node.js - WebStorm Python/Django - PyCharm Ruby/Rails - RubyMine C++ - CLion ObjectiveC - AppCode Hadi's 3 tips for Intellij Don't use the Mouse! Mouseless driven development [vimeo.com] Cmd Shift A - look up other commands Don't use the Find box to find things: Prefer shortcuts like Cmd O/Cmd Shift O Kotlin Kotlin - An open source JVM targeted language Jake's doc on Using Project Kotlin for Android [docs.google.com] Execution in the kingdom of nouns [blogspot.com] Kotlin : a new hope - talk by Michael Pardo [realm.io] Tony Hoare saying Null is his Billion dollar mistake [wikipedia.org] Getting started with Kotlin Kotlin Tutorials [kotlinlang.org] Kotlin Koans [kotlinlang.org] Try Kotlin o

Singer and Android developer Donn Felker explores Joshua Bloch's fourth Item: Enforce noninstantiability with a private constructor. Stay tuned, cause we got more of these quick ones coming. Effective Java (2nd Edition) - Joshua Bloch Enforce noninstantiability with a private constructor. Examples where you don't want class to be instantiated class that groups static methods and static fields (Util like classes think java.lang.Math/java.util.Arrays) class that groups static methods (including factory methods) for objects implementing specific interfaces (think java.util.Collections) class that group methods on a final class (vs. extending the class) Considerations Makes no sense to instantiate such "Util" classes Private constructors prevent instantiation Important side effect: prevents subclassing Contact us: @fragmentedcast [twitter.com] @donnfelker [twitter.com] @kaushikgopal [twitter.com]

In this mini Fragment, we introduce Joshua's third Item: Enforce the Singleton property with a private constructor or an enum type. Stay tuned for more items from our "Effective Java for Android developers" Fragment series. Show Notes Effective Java (2nd Edition) - Joshua Bloch Enforce the Singleton property with a private constructor or an enum type Approaches Create a public static final INSTANCE variable and privatize constructor Same as 1 but privatize variable and expose access with provide factory method getInstance Single element Enums Considerations First two approaches are open to Serialization attacks (deserializing creates new instance) To protect from those declare the fields transient + provide readResolve method Enums are concise, provide free serialization and ironclad Singleton guarantees and are functionally equivalent to first approach Supplemental reading (for the diligent ones that follow shownotes) Dianne Hackborn regretting exposing the base Application class DH again sa

In this power packed episode, Donn returns... If that wasn't amazing enough, Andrew and Akshay from Google join us to talk about Nearby. Show Notes Follow up Fragmented is on SoundCloud [soundcloud.com] ViewPropertyAnimator has better performance [twitter.com] Droid Inspector [sriramramani.com] Jake Wharton's Scalpel [github.com] Nearby 100 days of Google Dev, Episode 47/100 - Andrew on Nearby [plus.google.com] Chromecast Guest mode when Nearby [support.google.com] Examples/Documentation google sample for Nearby [github.com] Nearby official docs [developers.google.com] Awesome picks for the week: Andrew: svg-android [github] and its various forks inkscape tutorials by Derek Banas [youtube.com] Akshay Xiaomi mi band [engadget.com] DF: Karma Wifi (donnfelker.com) Working Remote (modess.io) KG: Google Tone - Chrome extension (chrome.google.com) Contact Fragmented @fragmentedcast [twitter.com] @donnfelker [twitter.com] @kaushikgopal [twitter.com] @andrewbunner [twitter.com] Akshay's email Soundclo

In our third Fragment installment, we introduce Josh's second Item: Consider a builder when faced with many constructor parameters. Stay tuned for more items from our "Effective Java for Android developers" Fragment series. [audio src="http://traffic.libsyn.com/fragmented/ep_14_fragmented.mp3" preload="none" autoplay="false"] [Download][1] Show Notes Effective Java (2nd Edition) - Joshua Bloch Consider a builder when faced with many constructor parameters Patterns available for constructing object with parameters: Telescoping Constructor Pattern - Provideconstructor with only required parameters, another with a single optional param, a third with 2 optional params... and so on. Advantage: Works well for small number of parameters Disadvantage: Does NOT scale well JavaBeans Pattern - Callparameterless constructor to create the object; then call setter methods to set required parameter and each optional param of interest. Advantage: Scales well, easy (but wordy) to

In this episode we talk to Amanda about how she got started as an Android developer, working at Venmo, her path to mastering Java and Android, dabbling with the dark side and Animations in Android! Show Notes Learning Java and Android Java for Dummies [amazon.com] Effective Java (2nd Edition) - Joshua Bloch [amazon.com] Android programming: The Big Nerd Ranch Guide [bignerdranch.com] Computer Science CS50 by Harvard University: David Malan [youtube.com] CS61B by UCBerkely: Jonathan Shewchuk [youtube.com] MIT 6.00 by MIT Opencourseware [youtube.com] Venmo Venmo: The Musical 2015 (lip dub) Hack Week at Venmo [venmo.com] Swift/iOS and other languages Kotlin [kotlinlang.org] Animations Snowdream github repo [github.com] DevBytes youtube playlist Chet Haase on Animations in Honeycomb [blogspot.com] Droid Inspector [sriramramani.com] Android ObservableScrollView [github.com] Awesome picks for the week: Amanda On being a senior engineer [kitchensoap.com] KG: Guillotine animation how we developed the gui

We've mentioned the book "Effective Java" by Joshua Bloch quite a few times on previous episodes. At this point, everyone knows they should have read this book (quadruple times). But it's a dense read and everyone could use a reading buddy. Also, what does Effective Java look like through the eyes of an Android developer? In this second installment of our Fragment (a.k.a mini-episode), we thought we'll do our listeners a favor and help with that reading. We introduce the very first of these venerable "Items": Consider providing static factory methods instead of constructors. Stay tuned for more items from our "Effective Java for Android developers" Fragment series. Show Notes: Effective Java (2nd Edition) - Joshua Bloch Consider providing static factory methods instead of constructors static factory method makeText for Toast class [androidxref.com] ObjectAnimator [androidxref.com]: .ofInt [androidxref.com] .ofArgb [androidxref.com] .ofFloat [androidxref.com] Advantages: Y

In this episode we revisit the topic of Testing, looking at it from a TDD perspective. Globetrotter, Kata Queen, TDD practitioner and overall boss of Android development - Corey Latislaw, joins us in this episode with thoughts, tips and tricks on pulling off TDD. She also shares some of her wicked sketchnoting tips and made a very special Sketchnote just for this episode! Have a  look at the sketchnote here. Show Notes GDG [developers.google.com] GDE [developers.google.com] GDE Android - Ms.Latislaw [developers.google.com] GDE Android - Mr.Felker [developers.google.com] Sketchnoting The Sketchnote Handbook - Mike Rohde [amazon.com] Sketchnoting for Techies [coreylatislaw.com] Corey's Google I/O Sketchnotes [coreylatislaw.com] Corey's live sketchnoting (with videos) [coreylatislaw.com] Kids on Computers [kidsoncomputers.org] Corey's books Android Activity Book [gumroad.com] (coupon “fragmented” for $5 off) Android Theory Book [gumroad.com] (coupon “fragmented” for $5 off) Running Code Coverage in Andro

In this episode we're trying something new. Everyone has requested more episodes of the podcast. In short, everyone wants a weekly show. So this week, we're introducing what we call a mini-episode ... or as we like to call them a "Fragment". Fragment episodes will be shorter in length but still packed with goodness. They will range from ~7-25 minutes in length and will showcase either Kaushik, myself (Donn) or both of us. In the first "Fragment" installment we're going to talk about Continuous Integration (CI) and Collective Code Ownership (CCO). Donn talks about what CI is, why its important and how it benefits you and your team. He then dives right into CCO and how it can be facilitated through testing. We hope you enjoy these new mini-episodes ... aptly named ... Fragments. :) Show Notes Thoughtworks - Continuous Integration [thoughtworks.com] Working Effectively with Legacy Code - Michael Feathers [amazon.com] Continuous Integration solutions: Jenkins CI [jenkins-ci.org] Cloud solu

In this episode - Donn and Kaushik dive into a topic that is very near and dear their hearts - application architecture. They talk about how Martin Fowler has inspired a lot of their architectural decisions and how they're moving towards defining what a clean architecture means to them and other developers. They talk about Model View Presenter, Model View Controller and many other topics that surround these two common patterns. Take a listen and go for the ride on architecture train ... all aboard! Show Notes Chit-chat: Exponential backoff with RxJava [github.com] RxJs - ReactiveExtensions for Javascript [github.com] Follow up: Moving GC only applicable when app goes into background: A closer look at ART in Android L (see last paragraph) [anandtech.com] Google I/O 2014: The ART Runtime [youtube.com] The road to a clean architecture: Bad practices: Cargo cult programming [wikipedia.org] God objects [wikipedia.org] Martin Fowler’s articles on Patterns of Enterprise Application Architecture: Supervis

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-la

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

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 Podc

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 [gra

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

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] Do

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 Comp

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: Timely Pocket Casts Reddit News Muzei gReader Link Bubble For more inspiration:  Android Niceties Android Games that Dan plays Threes! Hoplite Wordiest Working Remotely: Tre