Monthly Archives: October 2013

Using arrays of checkboxes to store and retrieve WordPress options

I am into a complex task: for some time I’ve wanted to update the theme of this site and make it more versatile. Despite my obvious lack of time, the content is increasing steadily, so is the number of visitors, and I feel more and more often the need to structure better all these posts …

UIPickerView Tutorial — part 2

Before we continue the second installment in the series of basic tutorials about UIPickerView usage and customization, a short digression. Most Cocoa/ Cocoa Touch tutorials assume that all connections to delegates, data sources and outlets are done visually in XCode. Our previous example was no exception. You can see from the project (gave the link below) …

Bootable USB Drive with OS X Mavericks — Fastest Way

Apple released its latest OS X version, 10.9 or “Mavericks”. Quote Apple: “With more than 200 new features, OS X Mavericks brings Maps and iBooks to the Mac, introduces Finder Tabs and Tags, enhances multi-display support and includes an all-new version of Safari.” Cool, ain’t it ? But this I like most: “The latest release …

Split NSArray based on characters

Arrays are omnipresent. As I needed a snippet to make a string into an array of values, I thought would be helpful to share this for beginners. For example, take a string variable like, Create an array variable “array1” as:- I used the for loop to know the array1 values, which is displayed in Console …

iOS 7 UIPickerView Simple Application

Recently I was asked by a friend to provide some support with UIPickerView in iOS 7. He was a bit puzzled by what it seemed to be the impossibility to pad the content of each picker view row to a certain distance from the left side of the UIPickerView. Basically, let’s consider the following example. …

Spam stupidity

Cleaned my spam list in the blog today. I am constantly amazed by the stupidity of these bots. Just a rant. Have a great day.

Usage of void in C

Going into some USB programming for a project I am into (on my Mac), I ran into this and I thought would be nice and useful to elaborate a bit. This is about void* pointers and callbacks in C. USB device discovery and probing under IOKit makes heavy use of callbacks, I wanted to write …

Auto-increment versioning in XCode 5

Ok, this will be quick. There is no built-in feature or that supports automatic code versioning in XCode. I am talking about auto incrementing versions or build numbers in XCode plist, aka “CFBundleVersion” info.plist entry. Here’s a quick one for XCode 5. Make sure your target has an *Info.plist file. Add an entry there, as …