Dragging gesture is consumed when used in scrollable composable

[haluzpav]

🐛 Bug Report

When the PhotoView is used in a scrollable composable, the PhotoView and Compose don't communicate the dragging events properly, and so the composable doesn't scroll as it should. When dragging some other part of the composable, scrolling works.

TBH, this sounds like a Compose issue, so I also made a ticket for them: https://issuetracker.google.com/issues/220919265

Expected behavior

When dragging on PhotoView which is in scrollable composable, the composable can be scrolled.

Reproduction steps

You can checkout this minimal repo.

The problem lies in this:

Column(modifier = Modifier.verticalScroll(...)) {
     AndroidView(factory = { context -> PhotoView(context) })
}

Also, a video. The problematic Compose behavior starts at 0:16. Before that, you can see the expected behavior in Views.

device-2022-02-23-184007.mp4

Configuration

Version: 2.3.0

Platform: 🤖 Android 11

[Hessam-Emami]

I've exactly got the same problem

[Hessam-Emami]

@haluzpav have you found a workaround for this? or maybe other libraries that work better with compose?

[haluzpav]

@Hessam-Emami nope, but TBH I did not try very much. I just don't use Compose in the Activity where I need the PhotoView. 🤷‍♂️

[minas1]

Please fix this issue!

[haluzpav]

Since this doesn't get any attention and probably never will, I'll mention that there's now Compose implementation of basically the same thing to PhotoView - https://saket.github.io/telephoto/. It has no scrolling issues, even when used inside of scrolling Views.