I’ve currently written this document as a “note to self” about how the Android
AsyncTask works. It’s currently incomplete, but if you want to know how an AsyncTask works, most of the answers are generally here. I provide documentation for most aspects of the
AsyncTask, though my coverage of (a) updating progress/status and (b) canceling an
AsyncTask is a little weak atm.
As a note to self, here are some Android Room database persistence library examples:
Those tutorials don’t show how to properly use Room database access methods, so they’ll lead to Android “Application Not Responding” (ANR) errors. Therefore, here are some related Google/Android docs:
Finally, here’s my own Android AsyncTask REST example, which also shows how to use an
This link has the source code for the online book, The Busy Coder's Guide To Advanced Android Development.
If you’re interested in ScalaFX, here’s a link to their brief documentation, their tutorials on Github, and here’s a link to the ScalaFX versions of the Pro JavaFX book examples.
If you’ve never used AppleScript, here are two iTunes AppleScript examples to get you going. First, This one tells iTunes to play the playlist named “My Favorites”:
tell application "iTunes" play playlist "My Favorites" end tell
That script starts playing a random song from that playlist. If you want to start by playing the first song of that playlist, this script will do the trick:
There are times when I work on images a lot with Gimp, and then there are times when I don’t work with Gimp for a month or two. When I don’t work with Gimp a lot, I tend to forget about all of the different things I can do with. Therefore, I have created this page as a “Gimp special effects cheat sheet” page to help remind me of all the cool things I can do with Gimp effects.
This is an excerpt from the Scala Cookbook (partially modified for the internet). This is the introduction to Chapter 19, Types.
As you can tell from one look at the Scaladoc for the collections classes, Scala has a powerful type system. However, unless you’re the creator of a library, you can go a long way in Scala without having to go too far down into the depths of Scala types. But once you start creating collections-style APIs for other users, you will need to learn them.
As a quick reminder to self (and an example), you can easily create a Toolbar in Android. Here’s one example that shows a Toolbar defined in some XML layout code:
This short blog post contains a collection of Scala number and date examples. I created most of these in the process of writing the Scala Cookbook. Unlike the Cookbook, I don’t describe the examples here much at all, I just show the examples, mostly as a reference for myself (and anyone else that can benefit from them).
Scala numeric types
Scala has these numeric types: