CODEWITHSUNDEEP
iosnsdatensdateformatter
user3740248
user3740248

Reputation: 39

NSDateFormatter too slow in Time profiler

Time profiler say that my code to expressive in memory and I see lags while scrolling tableView.

How can I replace this code?

NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"mm:ss"];
NSDate *date = [NSDate dateWithTimeIntervalSince1970:[_duration doubleValue]];
return [dateFormatter stringFromDate:date];

_duration have value 123

I need string from _duration like 2:03 sec

Upvotes: 2

Views: 1186

Answers (1)

rmaddy
rmaddy

Reputation: 318854

Two options:

1) Create the date formatter once and reuse it.

2) Don't use a date formatter. There's no need. It's trivial to convert your duration to minutes and seconds.

int duration = [_duration intValue];
int mins = duration / 60;
int secs = duration % 60;
return [NSString stringWithFormat:@"%02d:%02d", mins, secs];

Upvotes: 4

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