CODEWITHSUNDEEP
iosuiprogressview
Jack Rhodes
Jack Rhodes

Reputation: 21

Progress bar linking to a music button

In Xcode, I have set my buttons to play a music clip which will last 40 seconds. My question is how do I link up a UIProgressView to the music playing? For example, if the song is half way through, the progress bar will display that.

Upvotes: 2

Views: 1895

Answers (1)

Lewis Gordon
Lewis Gordon

Reputation: 1731

If you have the following defined in your class:

AVAudioPlayer *audioPlayer;
UIProgressView *progressView;
NSTimer *audioTimer;

Running it off a timer seems to work:

- (void)audioProgressUpdate
{
    if (audioPlayer != nil && audioPlayer.duration > 0.0)
        [progressView setProgress:(audioPlayer.currentTime / audioPlayer.duration)];
}

When you start the clip start the timer (this runs it every tenth of a second):

[audioPlayer play];
audioTimer = [NSTimer scheduledTimerWithTimeInterval:0.1 target:self selector:@selector(audioProgressUpdate) userInfo:nil repeats:YES];

And when you stop the clip, stop the timer:

[audioTimer invalidate];
[audioPlayer stop];

Upvotes: 3

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