Android

Android Spongy Castle NoClassDefFoundError

If you are using Spongy Castle (which is a repackage of Bouncy Castle for Android), and are coming across a java.lang.NoClassDefFoundError like below on Android 4.x, you should perhaps check if you multi-dex is properly setup. If you are using multi-dex,

Node.js

Installing multiple versions of Node.js

If you have the need for using or testing multiple different versions of Node.js, theres a small tool that can help you a lot. It's an npm package called n. You install it via npm: npm install -g n And then you can

Angular.js

Angular ui.bootstrap failing to load templates

I recently had a problem with the Angular ui bootstrap where it was failing to load the templates it is using, from its own Angular $templateCache. The error I was getting, was a HTTP 404 Not found: After some testing, I found out that

intel-Z170

Secure boot problems on Intel Z-170 Skylake

Have you recently upgraded your hardware to the new Skylake system, only to find yourself with a machine that won't boot to install your operating system? Even if you select the correct drive to boot from, say a USB stick, it will not boot

i18n

Pluralization in Android

If you are writing an app, that uses a string containing numbers, for example: Deleted 1 message Deleted 2 messages You could manually create two different strings, and show either one by using an if/else, depending on the number variable. However, as you

Android Development

Butterknife - A viewbinding tool for Android

Are you tired of writing findViewById(R.id.view) everywhere in your app where you are dealing with views? There is a tool by Jake Wharton at Square, called Butterknife

Android

Sideloading Android OTA updates

If you have a Nexus device, it will regularly get updated to the newest Android version. If you don't like to wait for the OTA update to arrive to your device, you can sideload the update if you can get your hands on it.

ADB

Useful ADB Commands

If you are developing Android apps, using the Android Debug Bridge tool (ADB) may sometimes be necessary, or could save you a lot of time. With ADB you can install/uninstall apps, forward ports, push/pull files to your device, remotely connect to SQLite

Android Studio

Easily add device frames to your Android app screenshots

If you have an app that you want to showcase by taking screenshots, you can easily make it look more appealing by adding the correct device frame around the screenshot.

Preferences

Fixing a nasty RuntimeException in Android Preferences

You may come across this exception if you are using PreferenceActivity/PreferenceFragment, and have been messing around with custom list separator styles. The exception looks like this: 05-03 15:35:10.013 7029-7029/com.app.package.name W/dalvikvm﹕ threadid=1: thread exiting with

Tips

Get started with Docker on OS X

Docker is an amazing platform which can help you setup different environments to run or test your applications, or just quickly get started with some software. It is a container

Mac

Apple bluetooth keyboard disconnects, and won't reconnect

A few times now, lucky me, have experienced that the bluetooth Apple keyboard is disconnected, and not working. It has happened after putting my MBPr 15 into sleep, and when waking it up, the keyboard will not automatically reconnect, as it should. Also, to

OpenVPN

Connecting your Android device to an OpenVPN server

This is a follow up post from the previous one, which walked through setting up an OpenVPN server on your own Amazon EC2 machine (for free!). So, assuming you already have the server setup, lets continue by connecting an Android device to the OpenVPN

Syntax Highlight

Syntax highlighting in your Ghost blog with Prism.js

To make code and markup such as XML and HTML easier to read on a website, you should use syntax highlighting. Ghost does not have built in syntax highlighting out of the box, but its quite easy to add it! Theres a library called

Node.js

Mongoose Dates and Mixed objects not being saved to database

If you are working with Date or Mixed type objects in Mongoose you may notice that some objects are not always saved to the database, like they should, even if it looks like it just worked. The Dates and Mixed types in Mongoose, are

Sorting

Sorting with RuleBasedCollator may stop working in Android 5.0

If you are using the RuleBasedCollator in your app, you may get NullpointerException for your collator object if you do not properly initialize its constructor with a correctly formatted rule string. In Android 5.0 and later, the constructor expects to get a rule

Tips

Customize the favicon of your Ghost blog

To use a custom favicon for your Ghost blog: Copy your favicon.ico file to the /assets folder inside your theme folder (/blog/content/themes/themeName/assets). Open the default.hbs file of your theme On line ~15 replace <link rel="shortcut

Menus

Detecting Actionbar Home button press event

You can use this method to trigger something when the home or "up/back" button in the actionbar is pressed. For example, save what the user is currently doing or writing. You can listen for the Home button pressed event in the

Ghost

Add an "Edit" link to your blog posts in Ghost

A thing I was missing after switching from Wordpress to Ghost, was the "Edit post" link on each article, which was only showing if I was logged in. It's easy to achieve the same thing in Ghost too. Heres how: Include this

Blog

Switching from Wordpress to Ghost blog engine

I have now taken the plunge, and migrated away from the clunky Wordpress, and onto a new world of asynchronous javascript, Markdown and minimalism! Wordpress was getting more in the way, instead of making it easier to write blogposts. I ended up writing my

Apps

Ambient Temperature App reaches 100 000 installs!

My Ambient temperature app for phones with a real temperaturesensor, has now reached 100 000 downloads! The app is 100% free, it does not contain ads, nor does it require any permissions! Why it’s free You can get it (completely free) here, in

Blog

Write your Wordpress posts in Markdown!

I’m probably not alone when it comes to frustration around the post editor system in WordPress… I hate it when suddenly, a small change or edit to my blogpost,

Chrome

How to switch back to the old bookmark manager in Chrome

I was a bit suprised today, when I tried to bookmark a website in Chrome. Chrome has apparently updated its bookmark manager. And for me, it has not gotten any better! I don’t like the new card/tile listing of my bookmarks and

Free

1 and a half year of free LastPass Premium

Two promo codes have surfaced, that gives you an extra 18 months of free LastPass premium! You can use the codes if you are a new user, or an existing user. If you don’t have an account already, you can sign up via

Amazon

Setup your own (free) private VPN service on Amazon EC2 with OpenVPN

This tutorial will show you how to create your own VPN server on Amazon Web Services – Elastic Compute Cloud (in short: EC2). Part 2 of this tutorial shows you how