Hello! Small doubt I’m creating a button componen...

# compose

[robercoding]

Hello! Small doubt

I’m creating a button component and it should be small (it should ony grow as much as it needs). Therefore fillMaxWidth modifier should not be an option nor should be allowed.
I still give the chance to the developer to pass a Modifier to the button, so it opens the door for him to apply that fillMaxWidth.

Does anyone know if there’s a way to force a button to use wrapContentWidth or “_remove_” fillMaxWidth option?

[Stylianos Gakis]

You can apply a wrapContentWidth after you apply the modifier incoming to your composable. It would make for some super weird debugging sessions though if you forget that you’ve done that 😄

[robercoding]

I thought the same, I was thinking about the “_modifier order matters_” phrase but doesn’t seem to work.

Example:

@Composable
fun ButtonSmall(
    modifier: Modifier = Modifier,
    text: String,
) {
    Box(
        modifier.border(1.dp, Color.Black).wrapContentWidth(),
        contentAlignment = Alignment.Center
    ) {
        Text(text = "text")
    }
}

By using it ButtonSmall(Modifier.fillMaxWidth(), text)
It still applies fillMaxWidth modifier because border fills the entire width.

I’ve also tried to set the border after wrapContentWidth() Modifier but doesn’t seem to make an effect

[Stylianos Gakis]

Just did this

Box(Modifier.size(200.dp).border(1.dp, Color.Red)) {
    SmallButton(Modifier.fillMaxWidth())
}

And then

@Composable
fun SmallButton(modifier: Modifier = Modifier) {
    Box(
        modifier.wrapContentWidth(Alignment.Start).width(80.dp).height(40.dp).border(1.dp, Color.Blue),
    ) {
        Text("H")
    }
}

And this gives this output

[Stylianos Gakis]

Well for sure if you put the border before the wrap, then it will definitely go on the bounds it gets after the fillMaxWidth.

[Stylianos Gakis]

Doing

Box(Modifier.size(200.dp).border(1.dp, Color.Red)) {
    ButtonSmall(Modifier.fillMaxWidth(), "H")
}

and

@Composable
fun ButtonSmall(
    modifier: Modifier = Modifier,
    text: String,
) {
    Box(
        modifier.wrapContentWidth().border(1.dp, Color.Black),
        contentAlignment = Alignment.Center
    ) {
        Text(text = "text")
    }
}

Does indeed also wrap the content width

[robercoding]

Ah, you’re right

[Stylianos Gakis]

You just need to specify in the wrapContentWidth after you’ve wrapped, where do you want the content to be aligned

[Stylianos Gakis]

If you change it to wrapContentWidth(Alignment.Start) it will output this

[robercoding]

I somehow mixed it up between multiple small components I was using to test the behaviour, it definitely works

[robercoding]

Thank you so much 🙏 🫶

[Stylianos Gakis]

Awesome, good luck with it 🤗