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NSTimer, UITableView and access NSMutableArrays

tomdekuijpertomdekuijper Posts: 4New Users
edited January 2010 in iPhone SDK Development

I am trying to make a stopwatch function which would seem to me very simple. However I am struggeling on a number of topics.
I have set up a timer (scheduledTimerWithTimeInterval) and the stopwatch is running fine. However I cannot access the NSMutableArray
i have created in the selector method for the timer. I am using a NSMutableArray to record the different NSDates every time the users
presses the ' LAP' button. In the TableView i am update the rows with these laptimers but get bad access error on the following code:
-(UITableViewCell*)tableView:(UITableView*)table cellForRowAtIndexPath:(NSIndexPath*)indexPath {
static NSString * const kLapCellID = @"LapsCellID";
UITableViewCell *cell = [table dequeueReusableCellWithIdentifier:kLapCellID];
if (cell ==nil) {
cell = [[[UITableViewCell alloc ] initWithStyle:UITableViewCellStyleSubtitlereuseIdentifier:kLapCellID] autorelease];
//calculate lap
NSInteger index = indexPath.row;
NSDate *endOfLap = [self.Laps objectAtIndex:index+1];
NSDate *startOfLap = [self.Laps objectAtIndex:index];
NSTimeInterval lapTime = [endOfLap timeIntervalSinceDate:startOfLap];
    int minutes = fmod((lapTime / 60), 60);
int seconds = fmod(lapTime, 60);
int hunderths = (fmod(lapTime, 60)-seconds) * 100;
cell.textLabel.text = [NSString stringWithFormat:@"Lap %d  %02d:%02d:%02d",
(indexPath.row+1), minutes, seconds, hunderths];
return cell;

How can I overcome this? And how can I ensure NSMutableArrays can be used throughout the code???

many thx in advance,

Post edited by tomdekuijper on


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