iOS进度视图工具：M13ProgressSuite

M13ProgressSuite 是一套包含很多 iOS 显示进度信息套件的工具。具体包括：

• A interchangeable set of progress view of diffrent styles. All the progress views are based on the same superclass, allowing any of them to be switched with any other easily.
• A progress bar for UINavigationBar that works like Apple's Messages app. It also has the added feature of having an indeterminate style.
• A HUD overlay that works over any UIView. Uses the M13ProgressView class to allow easy customizablility of the progress view.
• A progress view that is styled like terminal.
• Complete documentation of each class.

项目主页：http://www.open-open.com/lib/view/home/1389276133414