Listing floats from array with format - ios

Question

I have an NSMutableArray that contains floats. I can display one float in a specific format or display all of them without formatting but I cannot figure out how to do both at once. I first wrap the float in an NSNumber so that it can be added to the array:
NSMutableArray *array = [[NSMutableArray alloc] init];
NSNumber *num = [NSNumber numberWithFloat:5.10f];
[array addObject:num];
NSNumberFormatter works for formatting the numbers to be displayed in a textView. Here is the code I used to do that:
for (NSNumber *aNumber in array) {
self.textView.text = [NSString stringWithFormat:#"%#"
[NSNumberFormatter localizedStringFromNumber:aNumber
numberStyle:NSNumberFormatterCurrencyStyle]];
}
The obvious problem here is the text is replaced with the number in the array each time the loop runs rather than listing all of them.
So, I did more research and found componentsJoinedByString:
self.textView.text = [NSString stringWithFormat:#"%#", [array componentsJoinedByString:#", "]];
This worked well to list them but lacked the formatting style: It displays, for example, 5.10 as 5.1 which I don't want. I tried to combine them somehow but it didn't work, and I also tried stringByAppendingString in the loop using the formatter but that was a mess that did not work at all.

Answer 1

You are replacing the text in the textView instead of appending..
for (NSNumber *aNumber in array) {
NSString *result = [NSNumberFormatter localizedStringFromNumber:aNumber
numberStyle:NSNumberFormatterCurrencyStyle];
if (aNumber == array.firstObject && !self.textView.text.length) {
self.textView.text = result;
}
else {
self.textView.text = [NSString stringWithFormat:#"%#, %#", self.textView.text, result];
}
}