MPMediaPickerController closes after startup (Swift)

Question

When I click on the cell to open the MPMediaPickerController it opens when it starts up.

class MediaViewController: UITableViewController, MPMediaPickerControllerDelegate

override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
    if indexPath.section == 2 {
        if indexPath.row == 0 {
           let mediaPicker = MPMediaPickerController(mediaTypes: MPMediaType.anyAudio)
           mediaPicker.delegate = self
           mediaPicker.prompt = "Select song"
           mediaPicker.allowsPickingMultipleItems = false
           self.present(mediaPicker, animated: true, completion: nil)
        }
    }
}

func mediaPicker(_ mediaPicker: MPMediaPickerController, didPickMediaItems  mediaItemCollection:MPMediaItemCollection) -> Void {
}

func mediaPickerDidCancel(_ mediaPicker: MPMediaPickerController) {
    dismiss(animated: true, completion: nil)
    print("MPMediaPickerController - Cancel")
}

try self.navigationController?.present(mediaPicker, animated: true, completion: nil) — PPL, Mar 20 '18 at 12:52
@PPL Im see this 2018-03-20 17:57:46.435913+0500 Alarm[6928:2790899] Unbalanced calls to begin/end appearance transitions for . — B2Fq, Mar 20 '18 at 12:58
this occurs when you try and display a new viewcontroller before the current view controller is finished displaying — PPL, Mar 20 '18 at 12:59
@PPL Im tested this code in my another project and he is work perfectly — B2Fq, Mar 20 '18 at 13:03

score 7 · Accepted Answer · answered Mar 20 '18 at 13:13

7

Please add this in your info.plist

<key>NSAppleMusicUsageDescription</key>
<string>$(app Name) uses music</string>

It works for me.

answered Mar 20 '18 at 13:13

PPL

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Im have this NSAppleMusicUsageDescription $Alarm uses music – B2Fq Mar 20 '18 at 13:17
there should be some other issue with this, as your code looks well – PPL Mar 20 '18 at 13:19
& don't know why it dismisses to root screen? share your first navigation code please – PPL Mar 20 '18 at 13:20
The first is where is the cell with the function? – B2Fq Mar 20 '18 at 13:32
Let us [continue this discussion in chat](https://chat.stackoverflow.com/rooms/167182/discussion-between-ppl-and-b2fq). – PPL Mar 20 '18 at 13:36
ok I changed the code a bit now everything works fine))) Thanks – B2Fq Mar 20 '18 at 13:47

MPMediaPickerController closes after startup (Swift)

1 Answers1