Is it possible to get a listing of attributes and ranges for an NSMutableAttributedString?

Swift 5 – 4

let attributedText = NSAttributedString(string: "Hello, playground", attributes: [
  .foregroundColor: UIColor.red, 
  .backgroundColor: UIColor.green, 
  .ligature: 1, 
  .strikethroughStyle: 1
])

// retrieve attributes
let attributes = attributedText.attributes(at: 0, effectiveRange: nil)

// iterate each attribute
for attr in attributes {
  print(attr.key, attr.value)
}

In case, that you have defined attributedText of label.

Swift 3

var attributes = attributedText.attributes(
  at: 0, 
  longestEffectiveRange: nil, 
  in: NSRange(location: 0, length: attributedText.length)
)

Swift 2.2

var attributes = attributedText.attributesAtIndex(0,   
  longestEffectiveRange: nil, 
  inRange: NSMakeRange(0, attributedText.length)
)