I have difficulties with `DropdownMenu` positioning `x` coor kotlinlang #compose-desktop

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Title

o

Olivier Patry

03/22/2021, 10:28 PM

I have difficulties with

DropdownMenu

positioning.

coordinate of the menu is correct but the vertical position is wrong always stick to the bottom of the window. It seems close to https://github.com/JetBrains/compose-jb/issues/195 which is closed though. And the mechanic wasn't the same as of now it seems. You can see in the :thread-please: the details (code & screenshots)

As you can see, the horizontal position is fine, in second screenshot, it's triggered by the

(+)

in the white area, in the 3rd screenshot, by the

(+)

from the toolbar

When I debug the values of my anchors, they are perfectly correct, both for x & y coordinates.

What I noticed also is that the menu briefly appears at the right position (for a frame or 2) before landing at the bottom of the screen

here follows a screen capture

Enregistrement de l’écran 2021-03-22 à 23.37.29.mov

it seems I didn't properly understand the way

DropdownMenu

work. Using the sample code found here https://android.googlesource.com/platform/frameworks/support/+/refs/heads/androidx-main/c[…]in/java/androidx/compose/material/samples/MenuSamples.kt I understood I had to wrap both "anchor" and Dropdown within the same

Box

parent with proper

Modifier.wrapContentSize(<http://Alignment.XXX|Alignment.XXX>)

where XXX is the anchor rules for this configuration. It now works as intended.

👍 1

c

Chris Sinco [G]

03/23/2021, 2:20 AM

Yep, it uses the Box parent as the anchor.

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