A small and flexible (well documented) UIButton subclass with animated loading progress, and completion animation.


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iOS > 7.0


ButtonProgressBar-iOS is available through CocoaPods. To install
it, simply add the following line to your Podfile:

pod 'ButtonProgressBar-iOS'


import ButtonProgressBar_iOS

Initialize just like you would any other UIButton:

var progressButton = ButtonProgressBar(frame: CGRect)

Since this is a UIButton subclass, targets and labels can be set in the same way:

progressButton.addTarget(nil, action: #selector(self.tapped), for: .touchUpInside)
progressButton.setTitle("Download", for: .normal)

The completion image can be set with;

This image must be set since no default exists.

  setCompletionImage(image: UIImage)

Indeterminate loading can be handled with the following functions:

startIndeterminate(withTimePeriod time: TimeInterval)
startIndeterminate(withTimePeriod time: TimeInterval, andTimePadding padding: TimeInterval)

Time Padding is the duration (default 0.5), in seconds, before starting the next cycle.
Time Period is the total time (animation + padding) that 1 cycle of the loading takes.

stopIndeterminate()  //Stops the indeterminate loading.

For determinate usage or otherwise, progress can be set with:

setProgress(progress: CGFloat, _ animated: Bool) 
Progress ranges from 0.0 to 1.0

If animated is true, linearly animates to progress.

resetProgress()  //Set progress to 0.0 unanimated.

Set the progress and background colors:

setBackgroundColor(color: UIColor)
setProgressColor(color: UIColor)

To explicitly show/hide the title / image:

hideTitle(_ hidden: Bool)
hideImage(_ hidden: Bool)

Stop indeterminate loading if active, set progress to 1.0 animated, and display completion image if set.

 Needs to be called explicitly when loading determinate as well.


Pushkar Sharma, [email protected]