Solution: When AndroidManifest.xml changes aren’t seen in your Flutter dev/test app alvin September 23, 2019 - 12:44pm

As a brief note, if you’re developing an Android app with Flutter and then find that the changes you made to your AndroidManifest.xml file aren’t being seen in your app, you’ll probably need to uninstall your dev/test app and completely reinstall it with flutter run. I just ran into this problem while working with flutter_local_notifications — which requires changes to AndroidManifest.xml to work properly — and uninstalling and reinstalling the app fixed the problem.

Over 100 of my favorite “mindfulness” quotes

This page contains a list of my favorite “mindfulness reminder” quotes. In particular these are short, concise quotes that I think work well with my “Just Be” mobile app.

Just Be is currently an app for Android users. If you haven’t seen it before, this is what the reminders/notifications look like when you receive them on an Android phone or tablet:

Scala/Java: How to convert a stack trace to a string for printing with a logger

As a quick note, I just got a little bit better about logging stack traces when writing Java or Scala code. In Scala I used to get the text from a stack trace and then log it like this:

// this works, but it's not too useful/readable

In that code, getStackTrace returns a sequence, which I convert to a String before printing it.

XO Play (Android football game)

XO Play is a “thinking man’s” football game that I created for Android devices. It’s for those of us who enjoy thinking about football strategy, of how to take advantage of our strengths and our opponents’ weaknesses, and how to call plays to win games. If you’ve ever watched a football game and thought, “I can call plays better than this guy,” XO Play is for you.

Version 1.4

Version 1.4 introduces four game levels you can choose from:

XO Play help text

This is the “help” text for my Android football game XO Play.

Changes in Version 1.4

Released on July 14, 2019, Version 1.4 introduces four new game levels:

A Java JFreeChart x/y plot/chart/graph example

In an effort to share some source code (but without taking the time to explain it), here’s some Java source code that I just used to create a JFreeChart chart/graph of some data that I use in my Android football game:

Bill Gates’ greatest mistake alvin June 24, 2019 - 1:04pm

TechCrunch has a nice, full quote from Bill Gates on what he considers his greatest mistake. I include part of the quote in this image because his “winner-take-all” comment is so important.