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iOS Build a Playlist Browser with Swift Building the Music Library and Playlist Models Using a Playlist Instance

Brittany D
Brittany D
1,767 Points
Posted by Brittany D
Brittany D
1,767 Points

Cannot subscript a value of type '[String : CGFloat]-> UIColor' with an index of type 'String'

artists += playlistDictionary["artist"] as! [String]

    let colorsDictionary = playlistDictionary ["backgroundColor"] as! [String: CGFloat]

    backgroundColor = rgbColorFromDictionary(colorsDictionary)

}
func rgbColorFromDictionary(colorDictionary: [String: CGFloat]-> UIColor){
    let red = colorDictionary["red"]! 
    let green = colorDictionary["green"]!
    let blue = colorDictionary["blue"]!
    let alpha = colorDictionary["alpha"]!

//all four of these lets are errors along with the backgroundColor

    return UIColor (red: red/255.0, green: green/255.0, blue: blue/255.0, alpha: alpha)
}

1 Answer

Jack Hawley
Jack Hawley
10,665 Points
Jack Hawley
Jack Hawley
10,665 Points

I think the second parenthesis is in the wrong place. Try this:

 func rgbColorFromDictionary(colorDictionary: [String: CGFloat]) -> UIColor