Basic question but I can't find a good answer: how...

# compose

[Marcin Wisniowski]

Basic question but I can't find a good answer: how do I apply a Modifer conditionally? Like previousModifier().apply{ if(hasPadding) padding(4.dp) } , except that doesn't work. (I know why it doesn't work, but I don't know a nice method that works)

[rsktash]

You should call Modifier.then(if Moidier.padding() else Modifier)

[Eric]

inline fun Modifier.modifyIf(
  condition: Boolean,
  then: Modifier.() -> Modifier
): Modifier = if (condition) then() else this

.modifyIf(hasPadding) { padding(4.dp) }

[Marcin Wisniowski]

Thank you, I was looking for something like that built-in, but a custom extension works too!

[Csaba Kozák]

The problem with your original snippet is that apply will return the original object (this), so your changes are thrown away. .run { } would solve the problem with your snippet as well, but you have to add an else block similar to @Eric did.

[Marcin Wisniowski]

@Csaba Kozák Like I said, I know why the apply doesn't work, and only used it to convey what I am looking for. : ) I tried run but found it quite verbose with the else , hence my question. Hiding it in an extension like Eric suggested is a good solution.

[Csaba Kozák]

My bad, i missed that part!

[Colton Idle]

I tried this in my codebase and it somehow completely messes with my layout when I conditionally add a clickable{}

/shruggie