setTitle for Buttons not uses complete number.

Question

Batdoctor OP

Created Aug ’18

Replies 2

Boosts 0

Participants 2

I want to set the title for a button with a double number.

The problem is that the function always cuts a zero, if the last number is a 0.

var number1: Double = 3.99
var number2: Double = 4.30

button.setTitle(\(number1), for: .normal) //Title is 3.99
button.setTitle(\(number2), for: .normal) // Title is 4.3  but hast to be 4.30

I tried to convert it with String(number2), but the title is 4.3 too.

Answered by Claude31 in 326676022

Just replace by this

     button1.setTitle(String(format: "%.2f", number1), for: .normal) // Title is 3.99
     button2.setTitle(String(format: "%.2f", number2), for: .normal) // Title is 4.30

Did your code compile as it was written ?

Didn't you get an error as:

Cannot convert value of type 'WritableKeyPath<_, _>' to expected argument type 'String?'

Note: which version of XCode do you use ?

Boost

Answer 1

Claude31 OP

Aug ’18

Accepted Answer

Just replace by this

     button1.setTitle(String(format: "%.2f", number1), for: .normal) // Title is 3.99
     button2.setTitle(String(format: "%.2f", number2), for: .normal) // Title is 4.30

Did your code compile as it was written ?

Didn't you get an error as:

Cannot convert value of type 'WritableKeyPath<_, _>' to expected argument type 'String?'

Note: which version of XCode do you use ?

0

Answer 2

Batdoctor OP

Aug ’18

I don´t get an error, it´s working fine.

I´m using xcode 9.4.1.

0