Question

I am using core-plot for drawing bar graphs. I have displayed date on x-axis. I have used following code:

NSDateFormatter * formatter=[[NSDateFormatter alloc]init];
[formatter setDateFormat:@"dd MMM yy"];

double tickLocation=0.5;
NSMutableArray *customLabels = [NSMutableArray arrayWithCapacity:[valuesArray count]];
for ( HistoryIndividualValueBean * value in valuesArray)
{
    CPTAxisLabel *newLabel = [[CPTAxisLabel alloc] initWithText:[formatter stringFromDate:value.submittedTime] textStyle:x.labelTextStyle];
    newLabel.tickLocation = [[NSNumber numberWithDouble:tickLocation++] decimalValue];
    newLabel.offset       = x.labelOffset + x.majorTickLength;
    newLabel.rotation     = M_PI_2;
    [customLabels addObject:newLabel];
    [newLabel release];
}

[formatter release];

x.axisLabels = [NSSet setWithArray:customLabels];

This is working fine on iphone. But on ipad it displays weird characters in date(which I have formatted above). Please refer to this image:

Answer 1

The reason you see this behavior is that MMM format is locale-specific. In Japan, it formats the month as month’s number followed by the 月 character.

If you would like a three-letter name of the months to be displayed regardless of the locale, pick US as the locale for your formatter:

NSLocale *usLocale = [[NSLocale alloc] initWithLocaleIdentifier:@"en_US"];
[formatter setLocale:usLocale];