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iOS Build a Playlist Browser with Swift Refactoring Our Code Tapping On Our Playlists

Posted by Victoria M
Victoria M
8,730 Points

Build failed question in Xcode 7

I am trying to preview my app but I am having trouble with the code in the Master View Controller. Here is my code:

import UIKit

class PlaylistMasterViewController: UIViewController {

var playlistsArray: [UIImageView] = []
@IBOutlet weak var playlistImageView0: UIImageView!
@IBOutlet weak var playlistImageView1: UIImageView!
@IBOutlet weak var playlistImageView2: UIImageView!
@IBOutlet weak var playlistImageView3: UIImageView!
@IBOutlet weak var playlistImageView4: UIImageView!
@IBOutlet weak var playlistImageView5: UIImageView!


override func viewDidLoad() {
    super.viewDidLoad()

    playlistsArray += [playlistImageView0, playlistImageView1, playlistImageView2, playlistImageView3, playlistImageView4, playlistImageView5]

    for index in 0..<playlistsArray.count {
        let playlist = Playlist(index: index)
        let playlistImageView = playlistsArray[index]

        playlistImageView.image = playlist.icon
        playlistImageView.backgroundColor = playlist.backgroundColor
    }
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
    if segue.identifier == "showPlaylistDetailSegue" {

        let playlistImageView = sender!.view as! UIImageView
        if let index = indexOfAccessibilityElement (playlistsArray, playlistImageView)
        {
            let playlistDetailController = segue.destinationViewController as! PlaylistDetailViewController
            playlistDetailController.playlist = Playlist(index: index)
        }


    }
}

@IBAction func showPlaylistDetail(sender: AnyObject) {
    performSegueWithIdentifier("showPlaylistDetailSegue", sender: sender)
}

}

I am having an issue with this part

if let index = indexOfAccessibilityElement (playlistsArray, playlistImageView)

The instructor used find, but it did not work in Xcode 7 and prompted me to use indexof, but i still can't get it to work and my build will not complete.

Thank you!

2 Answers

agreatdaytocode
agreatdaytocode
24,757 Points

Hi Victoria,

Try this:

            if let index = playlistsArray.indexOf(playlistImageView){
                let playlistDetailController = segue.destinationViewController as! PlaylistDetailViewController
                playlistDetailController.playlist = Playlist(index: index)
            }

Everything else should stay the same :)

Victoria M
Victoria M
8,730 Points

That worked! Thank you so much!

Ravirayappan Chinnappan
PLUS
Ravirayappan Chinnappan
Courses Plus Student 11,293 Points
Ravirayappan Chinnappan
Ravirayappan Chinnappan
Courses Plus Student 11,293 Points

How can i rectify this... i got an error on find key word how to use???? Plz help me

override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {

if segue.identifier == "showPlaylistDetailSegue"
{

    let playlistImageView = sender!.view as! UIImageView

    if let index = find(playlistsArray, playlistImageView) {
        let playlistDetailController = segue.destinationViewController as! PlaylistDetailViewController
        playlistDetailController.playlist = Playlist(index: index)
    }


}

}