For an app I’m designing at the moment I had the need to use a pullable view (sliding drawer) similar to how the iOS 5 Notification Center works, where you can flick or drag a handle to reveal or hide additional content. After looking for an existing open-source implementation of such feature and finding squat, I decided to create my own and share it with the interwebs.
The PullableView class tries to mimic the behaviour of the Notification Center view as closely as possible, and is very flexible. You can define and style your handle area, and the view can be pulled from any direction in the X or Y axes. To define the “open” and “closed” states you simply set the center point for the view at these states; if both points have the same X coordinate the sliding will happen in the vertical axis, or the horizontal axis if the Y coordinates are equal. You can also set a flag indicating if the view state should be toggled by simply tapping the handle area.
The sample project includes a view controller which uses 3 pullable views demonstrating many usage scenarios, but if you have additional questions or want to report a bug add a comment to this post.
You can download the source code from our Github repo. I’ve also added this component to the Cocoa Controls website. Hope you find it useful!
