CODEWITHSUNDEEP
swift2decimalformatcgfloat
SNos
SNos

Reputation: 3470

Swift 2 - add decimal 0 to CGFloat

I am trying to convert a string into CGFloat number. The code I have cuts out the last digit if equal to 0.

How can I prevent to cut out the zeros?

let str = "17.30"

let flt = CGFloat((str as NSString).doubleValue) + 2.0

print(flt) // 19.3 -- should be 19.30

Upvotes: 0

Views: 1918

Answers (3)

Benjamin RD
Benjamin RD

Reputation: 12044

For swift 4

Try using NumberFormatter in .decimal format:

let text = "123456.789"

let formatter = NumberFormatter()
formatter.numberStyle = .decimal
formatter.maximumFractionDigits = 2
let value = formatter.string(from: text! as NSNumber)!

print(value)

Output: 123,456.78

Upvotes: 2

dfrib
dfrib

Reputation: 73206

The CGFloat is just a number (so 17.3 and 17.30 is the same value for it); what you're really concerned is how to set the String representation of your CGFloat number.

As an alternative to @vadian:s solution, you can make use of an NSNumberFormatter as follows

/* Your CGFloat example */
let str = "17.30"
let flt = CGFloat((str as NSString).doubleValue) + 2.0

/* Use NSNumberFormatter to display your CGFloat 
   with exactly 2 fraction digits.  */
let formatter = NSNumberFormatter()
formatter.maximumFractionDigits = 2
formatter.minimumFractionDigits = 2
print(formatter.stringFromNumber(flt)!)
    /* 19.30 */

Upvotes: 1

vadian
vadian

Reputation: 285250

CGFloat can't do that, convert the float back to String

print(String(format: "%.2f", flt)) // 19.30

Upvotes: 4

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