Fragmented - Android Developer Podcast

In this episode, Donn is at Droidcon NYC 2017. He sits down to chat with Dan Kim about Kotlin, Gabriel Peal about React Native, Scott Alexander-Bown about Android Security, Jose Alcérreca about the Android Architecture Blueprints and Kevin Galligan about the history of Droidcon NYC and his new library - Doppl. 2:07 - Dan Kim (Kotlin) 10:07 - Gabriel Peal (React Native) 23:43 - Scott Alexander-Bown (Android Security) 33:32 - Jose Alcérreca (Android Architecture Blueprints) 43:09 - Kevin Galligan (Droidcon & Doppl) Show Links 082: Airbnb’s Gabriel tells us how to animate with Lottie – Fragmented 085: Casual Kotlin conversation with Dan Kim – Fragmented GitHub - googlesamples/android-architecture: A collection of samples to discuss and showcase different architectural tools and patterns for Android apps. doppl by touchlab — touchlab Sponsors BuddyBuild - fragmentedpodcast.com/buddybuild Contact Dan Kim (@dankim) | Twitter Gabriel Peal (@gpeal8) | Twitter Scott Alexander-Bown (@scottyab) | Twitter Jose Alcérreca (@ppvi) | Twitter Kevin Galligan (@kpgalligan) | Twitter @fragmentedcast [twitter.com] @donnfelker and +DonnFelker @kaushikgopal and +KaushikGopalIsMe

In this episode Florina returns to talk to us about Google's recently announced paging library! The paging library is a powerful take on implementing paging functionality in general, not necessarily linked to a paritcular technology or library. Florina breaks down the different components and explains what specific function each of them play. We start off with DataSources, talk about when one would want to use "Tiled" or "Keyed" data sources, and then talk about making them work with RecyclerViews (which is really what 99% of us eventually want). Florina also explains the role of PagedLists, PagedListAdapters and so much more. If you ever wanted to get an overarching veiw of Google's first take on implementing the paging library, this is a great starting point. Listen on so you can understand, try it out and then give feedback to Google, to participate in the making of this new library. Show Notes Google Developer Days - Florina's segment on paging Paging library - developer docs DataSources PagedList PagedListAdapter LivePagedListProvider Sponsors Kobiton - 15-day Free trial with no credit card required 🙌 Contact @fmuntenescu [twitter.com] @fragmentedcast [twitter.com] @donnfelker and +DonnFelker @kaushikgopal and +KaushikGopalIsMe

In this episode, Romain Guy from Google gives us the lowdown on a bunch of Hardware related stuff. He starts off by explaining how the refresh rates on screens matter, what it would mean to have something like a 120Hz display for Android screens, how things like V-Sync and double buffering work, using different screen technologies, how much work is done by the CPU and GPU and so much more. This was one of those episodes where we tried so hard to hold back for fear of recording for another 2 more hours. Romain is clearly one of the most knowledgable and interesting engineers to talk to today in the hardware land of Android. What a blast! Show Notes Photography Romain on Instagram Romain on Flicker Leica M10 Canon EOS 5DS R Screens, refreshing/rednering Color Fragmented 91 - Reddit AMA Romain on Reddit being spoiled by 120Hz What is V-Sync (pcworld.com) and Screen tearing (Wikipedia) Three-two pull down technique (filmaking) (wikipedia) OLED vs AMOLED (quora.com) OLED vs LCD (quora.com) Romain Guy's 2017 IO Talk on Colors fundamentals YOU OWE IT TO YOURSELF TO WATCH THIS!! Sponsors Kobiton - 15-day Free trial with no credit card required 🙌 Contact @romainguy [twitter.com] @fragmentedcast [twitter.com] @donnfelker and +DonnFelker @kaushikgopal and +KaushikGopalIsMe

In this episode, we talk to Florina from Google about the recently released Database library Room. Room was introduced as part of the Android Architecture components and has been picking up a lot of steam in the community. Room focuses on being a beautiful api layer to Sqlite. Florina explains to us how we can use Room to create a database, creating entities and how them map to tables, using DAOs to access data and even observe them Listen on for the details! Show Notes Official docs Android Architecture Components Room migration docs runInTransaction api (which Florina recommended if you're executing more than one SQL statement and don't want multiple event fired) Google Samples - Android Architecutre Components Florina's posts Florina's Medium blog posts Room & RxJava 7 steps to Room Understanding migrations with Room Testing Room migrations 360|AnDev talks Room - Behind the scenes (Yigit Boyar) Data Persistence in Android: Room for Improvement Micellaneous questions about Room (that we chopped off for lack of time) Q: Does Room use reflection? A: There's only 1 reflection call (at the time of finding the database implementation, when you call Room.builder). Most of the other stuff is generated code (with compile time verification!). Q: Does Room provide compile-time SQL checks A: Yes, Room was designed to provide compile-time checks. Q: Does Room handle SQL injection attacks (security) Yes ... for all practical purposes. See this post for times when it doesn't. Q: Do we have tools to access the sqlite database file directly? Nope, at the moment, adb is your friend. Use that to download the file manually from your device. Sponsors Rollbar - special offer: Bootstrap plan free for 90 days Contact @fmuntenescu [twitter.com] @fragmentedcast [twitter.com] @donnfelker and +DonnFelker @kaushikgopal and +KaushikGopalIsMe

In this episode of Fragmented, Donn talks about a common problem almost all software engineers face in their career - Design Patternitis. So, you've read the books on design patterns and now you're applying them everywhere. Just because some code can be put into a pattern doesn't mean you should. Or should you? How can you apply them when needed? Donn shares 5 tips with you that you can use to help combat Design Patternitis. Show Notes Head First Design Patterns Design Patterns - GoF Book Patterns of Enterprise Application Archicture - Fowloer Code Review StackExchange Code Mentor Sponsors This episode is made possible by Kobiton - Fragmented. They're giving listeners a 15-day FREE trial with no credit card required! 🙌 Give them a try at Kobiton.com/fragmented and let them know we sent you. Contact @fragmentedcast [twitter.com] @donnfelker and +DonnFelker @kaushikgopal and +KaushikGopalIsMe

In this episode of Fragmented, our friend and RxJava paragon of the Android - Dan Lew, returns for a record 3 and 1/2 time. We've been using RxJava over the years now and have even talked to Dan about it in previous episodes. How has our understanding of Rx use in Android changed over the years? We know some of the super standard usecases for RxJava in AndroidDev. But the important question to be asking is: when are the times we "shouldn't" be using RxJava? Are we over-complicating our code by shoe-horning it in different places. Concepts like functional programming and reactive state management have picked up steam again, how has this influenced our RxJava use? Show Notes Fragmented Ep.3 Dan Lew - The RxJava show (Part 1) Fragmented Ep.4 Dan Lew - The RxJava show (Part 2) Futures in Java (7) SqlBrite - lighteweight Rx wrapper for SQLiteOpenHelper Error handling with RxJava - Dan Lew OrmLite - Android Why not RxLifecycle Tweet quote - boilerplate is ok Introduction to Functional Reactive Programming Sponsors This episode is made possible by Kobiton - Fragmented. They're giving listeners a 15 day FREE trial with no credit card required! 🙌 Give them a try at Kobiton.com/fragmented and let them know we sent you. Contact @fragmentedcast [twitter.com] @donnfelker and +DonnFelker @kaushikgopal and +KaushikGopalIsMe

In this second episode of our learning Kotlin series, we talk about Kotlin’s support for static members or … lack thereof. Kotlin as a language was designed so that there’s no such thing as a “static member” in a class but there are times when having static members can be useful. So what do we do in those cases? do we just avoid static members? are there better alternatives? what are the costs with some of these approaches? Listen on to find out more! Show Notes Static alternatives Package level functions (Kotlin docs) Static constants in Kotlin Object declarations Objects vs companion objects Cost of approaches Where do i put my constants in Kotlin Exploring Kotlin's hidden costs - Part 1 Kotlin discussion - best practices for top level declarations Look at the fragmentedpodcast.com for some code snippets Misc: Ep.89 - Learning Kotlin: Properties a first class language feature Kotlin in Action – Manning Publications Sponsors Rollbar - special offer: Bootstrap plan free for 90 days Contact @fragmentedcast [twitter.com] @donnfelker and +DonnFelker @kaushikgopal and +KaushikGopalIsMe

In this decompress episode, DF and KG kick it off with a brief discussion of the highlights from the recent reddit AMA that the Android Engineering folk conducted. What were the interesting things they learnt or were surprised by etc.? They then go on to briefly discuss two topics they've always chatted about (off-air) packaging by feature (not layer) and most recent thoughts on testing. Listen on to find out more: Show Notes 360 | AnDev 360|AnDev 045: Bluetooth (LE) with Dave (devunwired) Smith 059: Chiu-Ki Chan explains Mocking and Stubbing with Mockito AMA Reddit AMA - complete reddit thread Alarm Manager or JobScheduler thread - reddit thread Android Priority Job Queue - Yigit Android Job (Evernote) JobScheduler - Android Fragment backstack manager thread - reddit thread DF Tweet thread on using Fragments Soft keyboard API shortcomings - reddit thread SO question 1 SO question 2 SO question 3 SO question 4 Night light on Nexus 6P - reddit thread Flux software Sharp device: 120hz refresh rate- reddit thread iPad demo 1 iPad demo 2 Sharp Aquos 120Hz Android phone Package by feature not layer Alt F1 keyboard shortcut - Select in... Project View 068: Talking Buck with Uber engineer Gautam Korlam 090: Make your apps instant with Zarah Dominguez Instrumentation Testing Robots - Jake Wharton talk okHttp Mock WebServer Wiremock Sponsors Kobiton - start your 15 day free trial Contact @fragmentedcast [twitter.com] @donnfelker and +DonnFelker @kaushikgopal and +KaushikGopalIsMe

At I/O '16 Google announced the super cool new feature Instant Apps. At IO'17 we started to see real world examples and third parties pull off this feature. In this episode, we talk to GDE Zarah Dominguez who's company "Domain" was one of the partners for this program. What is the Instant Apps feature? What are some usecases where this comes in handy? How does it actually work internally? What does it take for a developer to implement this feature in their own app? Listen on to find out! Show Notes Instant apps - official page Domain (Zarah's company) Making the Domain Android app "Instant" Android Instant Apps, step-by-step: how Vimeo went about it IO'17 Fireside chat with 3rd party partner who implemented Instant Apps Google samples repository Sponsors Rollbar - special offer: Bootstrap plan free for 90 days Contact @zarahjutz [twitter.com] @fragmentedcast [twitter.com] @donnfelker and +DonnFelker @kaushikgopal and +KaushikGopalIsMe

In this mini Fragment, KG talks about his journey learning Kotlin as a newb. Given that Kotlin is most likely going to be the de-facto language for most developers, it makes sense to deepen our understanding of the language (as we have strived with Java over the years). "Properties" in Kotlin are a first class language feature. But what does that actually mean? What are the nifty features we get with properties? How are these resolved from a Java class when there's potential a name clash? What are some other gotchas and learnings from using properties? Listen on to find out: Direct download Shownotes: Kotlin docs - Properties and Fields Kotlin in Action - Manning Publications java.util.Calendar Mutable vals in Kotlin - Dan Lew Contact @fragmentedcast [twitter.com] @donnfelker and +DonnFelker @kaushikgopal and +KaushikGopalIsMe