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Show NSWindow below your NSStatusItem

Often, showing a simple menu in your status bar application is not sufficient enough. This short tutorial explains how you can show your own window right below of your status item. Inspired was this blog post by the following question on StackOverflow. For the basic...

How to create a Mac OSX status bar application

Creating a Mac OS X status bar application is really straightforward. However, below you will find a condensed step-by-step tutorial to avoid unnecessary mistakes. Create a new Xcode Cocoa Application project Go to Info.plist  file and add the key Application is agent...

Create your own Xcode code snippets

Using the Code Snippet Library from Xcode is very handy sometimes. However, the library consists only of a small amount of available code snippets. But you are not limited to them, rather than you can create your own code snippets for code patterns you are using very...

Swipe gestures on UITableView

User interactions on table cells don’t have to be necessarily restricted to simply scroll and tap them. However, with some additional code and the support of gesture recognizers introduced in iOS 3.2 you can give your users the possibility to swipe on your table view...

Objective C HMAC-MD5

Sometimes it is necessary to implement some cryptographic functions for security reasons within your iOS apps. In one of our projects I was faced with the problem of implementing some kind of a two-step registration/confirmation process with a iOS app and a...

UIDatePicker and UIPickerView

Sometimes it is necessary to adjust the color of the standard UIDatePicker  and UIPickerView  controls within your iOS application. Sadly the iOS SDK doesn’t support to change the background color or even the tint of these controls. A simple workaround for this is to...