Round Up NSNumber

Question

NSNumberFormatter *formatNumber = [[NSNumberFormatter alloc] init];
[formatNumber setRoundingMode:NSNumberFormatterRoundUp];
[formatNumber setMaximumFractionDigits:0];

NSNumber *height = [formatNumber numberFromString:self.heightField.text];
NSNumber *width = [formatNumber numberFromString:self.widthField.text];
NSNumber *depth = [formatNumber numberFromString:self.depthField.text];
NSNumber *weight = [formatNumber numberFromString:self.weightField.text];

NSLog(@"height %@", height);
NSLog(@"width %@", width);
NSLog(@"depth %@", depth);
NSLog(@"weight %@", weight)

I'm trying to round up height, width, depth and weight from UITextField to the nearest integer but it's still showing the entire decimal point. Can someone assist with my code to round it up?

thx.

Answer 1

Without the ceremony and with modern Objective C:

NSNumber *roundedUpNumber = @(ceil(self.field.text.doubleValue));

Answer 2

You can use this

NSString *numericText = self.field.text;
double doubleValue = [numericText doubleValue];
int roundedInteger = ceil(doubleValue);
NSNumber *roundedUpNumber = [NSNumber numberWithInt:roundedInteger];

Summary:

• doubleValue converts your field to a double
• ceil rounds the double up to the nearest integer
• casting to int converts the double to an integer
• construct the NSNumber from the integer.