Is this possible?
I have a class/struct that will store a function that will be used as an action to the button.
e.g.
struct Test {
var action: (() -> Void)?
}
This works
tempfunc() -> Void {
print("clicked it")
}
let test = Test()
test.action = tempfunc
Button("click me", action: test.action)
What I want to do is something like this.
test.action = () -> Void {
print("clicked")
}
Is this possible? If i try that code, error shows up saying "Cannot assign value of type '()' to type '() -> Void'"
When you write:
var clickMe = () -> Void
You assign a type to a var, that cannot work, you need to assign an instance of the Type, such as:
var clickMe : () -> Void = { }
And you should not redeclare the type when you set test.clickMe
So at the end, your code could be:
struct Test {
var clickMe : () -> Void = { }
}
var test = Test()
test.clickMe = {
print("clicked it")
}
Button("click me", action: test.clickMe)
To make it easier to read, defining a typealias is a good practice.
typealias SimpleClosure = () -> Void
struct Test {
var clickMe : SimpleClosure = { }
}
var test = Test()
test.clickMe = {
print("clicked it")
}
Button("click me", action: test.clickMe)
You can also pass a func that has the SimpleClosure signature:
func aFunc() {
print("From func")
}
Button("click my func", action: test.clickMe)
test.clickMe = aFunc
test.clickMe()
