ButtonProgressBar-iOS

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

Example

  • For LIVE PREVIEW on Appetize in your browser itself, click here.

  • To run the example project, clone the repo, and run pod install from the Example directory first.

SimulatorScreenShot

preview

Requirements

iOS > 7.0

Installation

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

pod 'ButtonProgressBar-iOS'

Usage

import ButtonProgressBar_iOS

Initialize just like you would any other UIButton:

var progressButton = ButtonProgressBar(frame: CGRect)
view.addSubview(progressButton)

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.

  triggerCompletion()

Author

Pushkar Sharma, [email protected]

GitHub