Unable to Implement Forward Action in AVAudioplayer

Question

I am using AVAudioplayer to play some audio files. I have some controls like forward and rewind.

Rewind is working properly but forward is not.

- (void)rewind
{
    AVAudioPlayer *player = _rewTimer.userInfo;
    player.currentTime-= SKIP_TIME;
    [_rewTimer invalidate];
    _rewTimer=nil;
    [self updateCurrentTime];
}

- (void)ffwd
{
    AVAudioPlayer *player = _ffwTimer.userInfo;
    player.currentTime-= SKIP_TIME;
    [player setCurrentTime:cTime];
    [_ffwTimer invalidate];
    _ffwTimer=nil;

    [self updateCurrentTime];
}

As soon as I click on forward button, the audio file just begins playing from the start.

I have followed the sample app avTouch from Apple.

Answer 1

you might have done the property declaration of AVAudioPlayer *player; in the h file and also synthesised it. Now for forward, just do,

- (void)ffwd
{
    NSTimeInterval *time = [player currentTime];
    time+=SKIP_TIME;
    [player setCurrentTime:time];    

}

do similarly for rewind+

OR

 - (void)ffwd{
    NSTimeInterval time = avPlayer.currentTime;
 time+=SKIP_TIME;
    if (time > avPLayer.duration)
    {
       //nothing to do

    }
    else
        [player setCurrentTime:time];
    }

this one seems the better way, also for rewind compare to 0 instead of duration