How to Use Multiple GitHub Accounts over HTTPS
Learn how to use several GitHub accounts over HTTPS: configure git so each repository gets its own credentials in your keychain and avoid 403 errors.
Mobile apps
Android Architecture – ART vs Dalvik
Android architecture explained in a technical yet easy way. ART vs Dalvik compared, APK contents, AOT and JIT compilation, and the Odex vs Deodex difference.
100% Free Android Book
100% free Android book that teaches everything you need to know about Android. Explained in a fun, easy way with hundreds of images.
Attributes for Android Designers (tools:xxxxx)
Learn the tools:xxxxx attributes in Android: design-time helpers like tools:ignore, context, layout and listitem that make building your layouts easier.
inflate() in Android – Inflating and Attaching Views
Learn what Android's inflate() method really does, the difference between inflating and attaching Views, and how to use it in Fragments, Dialogs and Adapters.
Android Error: The Android SDK Won’t Let You Update
Android SDK update failing with a 'folder failed to be renamed or moved' warning? Learn why it happens and two simple ways to fix it.
Speeding Up the Android Emulator
Learn how to speed up the Android emulator with Intel HAXM: install it, enable virtualization in the BIOS and get your emulator running in seconds.
Android Error – Eclipse Doesn’t Show the Android Buttons After Installing the ADT and the SDK
Eclipse doesn't show the Android SDK Manager and AVD Manager buttons after installing the ADT and SDK? Here's how to bring them back in a few steps.
Auto Layout iOS 7 (Video)
Learn how to adapt your iOS app to every iPhone screen size with Auto Layout in iOS 7. Watch the video tutorial and follow the steps with screenshots.
Android ListView in Just a Few Lines
Learn how to build an Android ListView with the least code possible, using ListActivity, SimpleCursorAdapter and a MatrixCursor. Clean, short and easy.
Android Context
Learn what Android's Context is, the types that exist, how to get it, and how to avoid memory leaks, explained with a simple example and code.
AsyncTask in Android
Learn how to use Android's AsyncTask for real multitasking, with a complete working example, its lifecycle and how to cancel tasks. Read it now!
Multitasking in Android
Learn how multitasking and threads work in Android: the main thread, background threads, event-driven programming and why you should never block the UI.