CODEWITHSUNDEEP
iosobjective-cmpmusicplayercontroller
oe a
oe a

Reputation: 2280

Change UIBarButton from play/plause programmatically

I am trying to switch a UIBarButton identifier depending on a state with this code:

if ([musicPlayer playbackState] == MPMusicPlaybackStatePlaying) {
        [playBtn setStyle:UIBarButtonSystemItemPause];
    } else {
        [playBtn setStyle:UIBarButtonSystemItemPlay];
    }

But I get this warning (and it doesn't work)

Implicit conversion from enumeration type 'enum UIBarButtonSystemItem' to different enumeration type 'UIBarButtonItemStyle' (aka 'enum UIBarButtonItemStyle')

Upvotes: 1

Views: 162

Answers (1)

Wain
Wain

Reputation: 119031

You can't change the the button type like that. As the warning suggests you're actually changing the drawing style (plain / bordered ...) but with the wrong enum type.

To update the button, create a new one and throw the old one away.

Upvotes: 4

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