As usual, we have a bit of everything, from tips on using Android Studio, pushing Kotlin, interview questions for iOS developers and how to move to Swift incrementally.
This has got to be the most useful listing I've seen in a long time. 50 Android Studio Tips, Tricks, and Resources is full of stuff that you really need to know as an Android developer.
All the cool kids are using it, so this article explains Why You Must Try Kotlin for Android Development.
Do you use WeakReferences in your Android project? Maybe you should consider it. Find out where in Finally Understanding How References Work in Android & Java.
With great power, comes great responsibility... or so they say. Here's some advice around Using Multi-Core Processors Wisely.
Stetho is an excellent debug tool for Android. Get an overview of why you should consider it in this article.
Some projects to check out:
FloatingView: FloatingView can make the target view floating above the anchor view with cool animation
BigImageViewer: Big image viewer supporting pan and zoom, with very little memory usage and full featured image loading choices. Powered by Subsampling Scale Image View, Fresco, Glide, and Picasso.
AllAngleExpandableButton: An expandable button menu that you can define expand angle and button count and so on
TyperEditText: Typewriter effect for text in your views
SquareMenu: SquareMenu is a custom Floating Action Button with a different shape from traditional FABs and with three sub menu buttons
ObjectiveKit allows you to modify and introspect your Swift app at runtime. You should really learn more about it, because it is magic!
Mastering TextKit shows you how to handle rich text like a pro in your iOS apps. If you're doing something special with text display, you have to watch it.
In Incremental Swift, Amy Dyer talks about how Etsy gradually moved to Swift, rather than diving straight in.
Most apps follow a similar boilerplate these days, taking some or all of the features of a social networking app. This piece on Designing an iOS Social Network App Architecture should appeal to most developers.
Hiring developers? Check out these 25 iOS Interview Questions for Junior Developers.
Some projects to check out:
GRDB.swift: A Swift application toolkit for SQLite databases, with WAL mode support
CRNetworkButton: Advanced click button interaction
BlueSocket: Swift network socket library
You've heard that the hamburger menu is so last year. What now? Here are some alternatives for your consideration.
You've probably noticed how all the apps on your phone started looking more sparse over the last few years. It's all down to The Rise of Minimalism.
The guys at Intercom always have a good insight into product development. Their latest post explains why Your Product is Already Obsolete.
While not extensive an extensive list, this collection of free books, DevFreeBooks, is off to a good start.
Looking to earn some easy passive income? If you've been considering the iTunes Affiliate Program, it might not buy you that yacht! Here's one developer's experience with the program.
One last thing; at the Úll conference this year, the organizers created a great video of developers reading one-star app reviews. If you'd like to share your pain, check out The Hell of App Store Reviews.