Is it possible to specify the bounds of an indication for a custom layout? When someone taps on a ro...

# compose-android

[Sean Proctor]

Is it possible to specify the bounds of an indication for a custom layout? When someone taps on a row in my Layout, I want that row to be indicated, not the entire Layout.

[Chris Fillmore]

Any reason the indication isn’t attached to the row?

[Sean Proctor]

It's a custom Layout so there is no row composable.

[Sean Proctor]

It's specifically this: https://github.com/sproctor/compose-data-table/blob/main/datatable/src/commonMain/kotlin/com/seanproctor/datatable/Table.kt#L133

[Chris Fillmore]

Ah, ok, I misunderstood. I haven’t done any custom layouts so I’m not familiar with this problem.

[Sean Proctor]

This is my first one, so me either.

[Louis Pullen-Freilich [G]]

This won't really work as is currently, you'll need to have a separate indication modifier for each row rather than the whole layout.

[Sean Proctor]

How would I specify an indication for a particular row?

[Louis Pullen-Freilich [G]]

You’d need to have a layout (like a Box ) per row to put the modifier on - if you want the row itself to be clickable / show indication, then you need some layout that defines this bounds / represents this row

[Louis Pullen-Freilich [G]]

It doesn’t really work with a virtual layout like this, if you need to group multiple elements as one for the purposes of indication or otherwise

[Louis Pullen-Freilich [G]]

On a side note you’d probably find that it would make a bunch of stuff much better here: e.g you wouldn’t need to have this manual pointer input tracking logic, you could just add Modifier.clickable to each row, which would also properly implement accessibility that your current implementation doesn’t have support for.

[Sean Proctor]

Thanks, that was a great idea. I didn't think about the fact that a row doesn't necessarily need to contain anything.