My app doesn’t support going back to previous tracks, and I’m wondering if I can tell the lock screen music controls to hide their rewind/previous track button. I use the
As of iOS 7.1 there is a way to customize the controls available in the lock screen and command center (and probably many other accessories): MPRemoteCommandCenter
.
Regarding your question you can do the following:
[MPRemoteCommandCenter sharedCommandCenter].previousTrackCommand.enabled = NO;
[MPRemoteCommandCenter sharedCommandCenter].skipBackwardCommand.enabled = NO;
[MPRemoteCommandCenter sharedCommandCenter].seekBackwardCommand.enabled = NO;
// You must also register for any other command in order to take control
// of the command center, or else disabling other commands does not work.
// For example:
[MPRemoteCommandCenter sharedCommandCenter].playCommand.enabled = YES;
[[MPRemoteCommandCenter sharedCommandCenter].playCommand addTarget:self action:@selector(play)];
Please see this Stack Overflow answer for more general information about MPRemoteCommandCenter.