Sometimes, when you need to know, you need to poll. Here, we look at building a polling mechanism using `NSOperation`.

Even when going custom, there are patterns to follow. Here, we look at how to write custom properties while adhering to the expected pattern.

For any given piece of functionality, you want one owner. It keeps your code clean and well-structured. Using Interface Builder makes this almost impossible for anything but the most straightforward UI. So I avoid it. Here, we look at how to build a tab bar programmatically.

Sometimes, we need to take a step back to get on the right path. Here, we look at how to manipulate `UINavigationController` to navigate back further than the standard behaviour allows.

Waiting for something to load is boring but we all have to do it from time to time. Here, we look at how to build a custom loading view that can be reused throughout your app.

Have you ever wondered if people are talking about you behind your back? Well, turns out your methods are talking behind your back. Here, we look at the hidden arguments that each method is given and hear what's being said.

Properties only get one name, right? Nope, you can give your properties a second or even a third name. Here, we look at how to set custom getter and setter names.

What is a type? What is an instance? How do they interact? Here, we look at hos to call a class/type method from and instance method

When debugging you often see `isa` in the output. But that is `isa`? Here, we look into that very question.

Manually scrolling through a list of information to find what we need can be time-consuming, even for modestly sized lists. Here, we look at how to search through a list to find what we need using `UISearchBar`.

Moving work onto a background thread can be hard. Here, we look at how to keep it simple.

Recently on an application I came across an issue where when I showed a UIPickerView inside an action sheet the bottom half(ish) of the pickerview wasn't selectable. I had came across this before when showing buttons in an UIActionSheet and had overcome it by moving the button slightly higher

It's increasingly rare for an app to be built by one developer. With multiple developers comes the need for sharing. Here, we look at how to share an iOS certificate between different developers on your team.

We build apps to share them. Here, we look at how to share an `.ipa` file using Xcode 3.