2D drawing app with UIGraphics -> UIKit -> Swift

Including line object and it's properties, you can modify it as you want.

• Color: UIColor
  
• Width: CGFloat
  
• Start: CGPoint
  
• End: CGPoint
  
• Cap: CGLineCap
  
• Join: CGLineJoin
  
• BlendMode: CGBlendMode
  

Extended from UIView class drawing lines with options, listening touches on screen and tracking the locations based on UIGraphics context. As default context using .interpolationQuality = .high

It is flexible, class you can modify it like normal UIView just added

• isDrawable : Bool // For controlling drawing mode
• Fill background: UIColor (tool)
• Eraser (tool)
• Color Picker (tool)
• Undo (tool)
• Clear (tool)