Tech Tip: iOS App Development in Monotouch: Adding a Back Button to a DialogViewController

A quick and simple iOS programming tip today. If you create, for example, a settings screen using a DialogViewController, typically you will want a back button to the calling screen. Frustratingly, this doesn’t happen by default, and oddly, while there are many workarounds to this on the web, none mention this simple method: public partial class settings : DialogViewController { …

A QR code for Rectangle Red

Build your own QR code!

A QR code is a (usually black and white) square graphic, like the one on this page. Typically, it holds a description of a web address, so that if you point a smartphone at it, it can decode the web address from the pattern, and jump straight to that web page. Try it with the one on this page! You …

How secure is your password?

Here’s an interesting article – the list of the 25 most common passwords. But there’s a bigger lesson here. There have been multiple leaks from sites that haven’t encrypted their user’s passwords. And password files with 6.5 million passwords were uploaded to hackers sites in June, which can be used for dictionary attacks on user accounts. So the question isn’t …