I am trying to customize the timer app made from books. I may not understand it, so let me ask you a question.

Question

PleaseTeach OP

Created Sep ’21

Replies 2

Boosts 0

Participants 3

Originally there was a picker to choose a few seconds.

@AppStorage("timer_Value") var timerValue = 10

I want to treat this as 10 minutes and 600 seconds instead of 10 seconds.

I tried various things for that, but I get an error. Why are you getting these errors? What do I not know? What should i do? I would like you to tell me.

1 @State var trueTimerValue = timerValue * 60 ↓ // Error displayed

Cannot use instance member 'timerValue' within property initializer; property initializers run before 'self' is available

2 I copied the code that was in the book var area: Int { sideLength * sideLength } ↓ @State var trueTimerValue: Int { timerValue * 60 }

// Error displayed

Property wrapper cannot be applied to a computed property

I would appreciate it if you could answer.

Boost

Answer 1

OOPer OP

Sep ’21

Please try this:

var trueTimerValue: Int { timerValue * 60 }

(No @State.)

0

Answer 2

Claude31 OP

Sep ’21

You could try declare a computed var

var trueTimerValue : Int {
  timerValue * 60
}

but not declare state var ; state var is timerValue

0