Features and Bugs
After showing the app around, I got a lot of input how to improve the concep
- Instead of the slider show a waveform to make identifying the section easier
- Set marker for start and end to replay the loop
- Persist already set markers
- Mark tracks which already have markers
- Start and stop playing via Siri
- When selecting a track which is not on your device at the moment, the app crashes
- the layout is not suitable for landscape orientation
- Track time and slider jitter
Fixing Bugs
The concept of iTunes is to show all your music which you’ve ever bought. That means that the assetURL of a media item can be nil. To work around that issue you can intercept the seque transition with
shouldPerformSegue()
if self.shouldPerformSegue(withIdentifier: "showPlayer", sender: self) {
self.performSegue(withIdentifier: "showPlayer", sender: self)
}
override func shouldPerformSegue(withIdentifier identifier: String, sender: Any?) -> Bool {
if identifier == "showPlayer"{
let indexPath = tableView.indexPathForSelectedRow!
if mediaItems?[indexPath.row].assetURL == nil{
let alert = UIAlertController(title: "Song is not on your device!", message: "Please download it via music player app", preferredStyle: .alert)
let cancelAction = UIAlertAction(title: "OK",
style: .default, handler: nil)
alert.addAction(cancelAction)
self.present(alert, animated: true, completion: {
print("completion block")
})
return false
}
return true
}
return true
}
