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AmazingBubbles

Bubble pickers, inspired by Apple

Requirements:

Installation

AmazingBubbles Library is available through CocoPods. To install, add the following line to your Podfile:

pod 'AmazingBubbles', '~> 0.0'

Usage:

  1. Import library as follows:
import AmazingBubbles
  1. Add ContentBubblesView to your VC;
  2. Add delegate and dataSource for ContentBubblesView instance:
class ViewController: UIViewController {

  @IBOutlet weak var bubblesView: ContentBubblesView! {
      didSet {
          bubblesView.delegate = self
          bubblesView.dataSource = self
      }
  }
  
}
  1. Implement protocols :
public protocol ContentBubblesViewDelegate: class {
    func minimalSizeForBubble(in view: ContentBubblesView) -> CGSize
    func maximumSizeForBubble(in view: ContentBubblesView) -> CGSize
    
    func contentBubblesView(_ view: ContentBubblesView, didSelectItemAt index: Int)
    func contentBubblesView(_ view: ContentBubblesView, shouldChangeSizeForItemAt index: Int) -> Bool
    func contentBubblesView(_ view: ContentBubblesView, didChangeSizeForItemAt index: Int)
}

public protocol ContentBubblesViewDataSource: class {
    func countOfSizes(in view: ContentBubblesView) -> Int
    
    func numberOfItems(in view: ContentBubblesView) -> Int
    func addOrUpdateBubbleView(forItemAt index: Int, currentView: BubbleView?) -> BubbleView
}

for example:

extension ViewController: ContentBubblesViewDataSource {
    func countOfSizes(in view: ContentBubblesView) -> Int {
        return 3
    }
    
    func numberOfItems(in view: ContentBubblesView) -> Int {
        return 15
    }
    
    func addOrUpdateBubbleView(forItemAt index: Int, currentView: BubbleView?) -> BubbleView {
        var view: BubbleView = currentView ?? BubbleView()        
        view.backgroundColor = .clear
        let randomOrigin = CGPoint(x: CGFloat(drand48() * Double(self.view.frame.width * 2 / 3)),
                                   y: CGFloat(drand48() * Double(self.view.frame.height * 2 / 3)))
        view.frame = CGRect(origin: randomOrigin,
                            size: .zero)
        return view
    }
}
  1. And than call:
bubblesView.reload(randomizePosition: true) 

Additional features:

bubblesView.tapEnabled = true
bubblesView.panEnabled = false