How can I use a media picker for settings?

Question

I'm a new developer and I'm getting to grips with audio in iOS.

This will be tricky to explain, but I'll give it a go. I'm using a media picker so that the user can select a song from their library. I don't want there to be a queue or for it to play immediately. Instead, I want it to appear in a tableview and when the user selects that song in the table view, it will play that when, in another view, a button is pressed.

So basically, I want the user to be able to select a song from their library and it is added to list. They can then selected a song from that list and It will play that when a button is pressed.

If it helps, this is the code I'm using for the media picker and to play audio (and they're not actually connected to each other):

Media Picker:

MPMediaPickerController *mediaPicker = [[MPMediaPickerController alloc] initWithMediaTypes:MPMediaTypeAnyAudio];

        [mediaPicker setDelegate:self];
        [mediaPicker setAllowsPickingMultipleItems:NO];

        mediaPicker.prompt = NSLocalizedString(@"text1", "text2");

        [self presentViewController:mediaPicker animated:YES completion:nil];

Playing Audio:

if (self.panicButtonPressed == NO) {
NSURL *url = [NSURL fileURLWithPath:[[NSBundle mainBundle]
                                     pathForResource:@"Alarm 1"
                                     ofType:@"mp3"]];
alarmSound = [[AVAudioPlayer alloc]
               initWithContentsOfURL:url
               error:nil];
    [alarmSound play];
self.panicButtonPressed = YES;
}

Any help would be greatly appreciated.

score 0 · Answer 1 · answered Jul 10 '13 at 14:58

0

Once you get the file URL you can use it to access the files metadata (title,artist,etc.). You can then populate your table with this data and the URL.

answered Jul 10 '13 at 14:58

hotpaw2

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Thanks for your answer. Could you elaborate so as to show how I do that? I guess I would use the method `- (void) mediaPicker: (MPMediaPickerController *) mediaPicker didPickMediaItems: (MPMediaItemCollection *) mediaItemCollection` but I'm not sure what to put in it. Would it include something like this: `NSURL *url = [[mediaItemCollection.items objectAtIndex: 0] valueForProperty:MPMediaItemPropertyAssetURL];` – Invalid Memory Jul 10 '13 at 20:33
If you want the 'picked' song to appear in a table view then I think the easiest thing to do would be to store a reference to what they picked in an NSArray and then in your `tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath` method you'd pass the file metadata and URL. In addition to the Apple docs you might check out this brief overview of UITableViewController: http://blog.teamtreehouse.com/introduction-to-the-ios-uitableviewcontroller – Nick Jul 11 '13 at 14:07
Sorry for my late reply. Thanks for your help, how would I store the 'picked' song in an NSArray. I only know how to store string in an NSArray `self.booksArray = [NSArray arrayWithObjects:@"Brave new world"`. I understand what you're saying, but I'm unsure as to how to make it happen. I have already tried reading through the Apple Docs but I'm still trying to understand it. I had a look at the link you included. – Invalid Memory Jul 15 '13 at 11:03

How can I use a media picker for settings?

1 Answers1