mapbox / mapbox/mapbox-maps-android

how create custom cluster in mapbox android(Jetpack compose )

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auto-triaged compose feature :green_apple:
Dominant language
Kotlin
Stars
578
Forks
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PR merge metrics
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Description

Hello I want to create custom cluster with my compose component
```kotlin
@Composable
private fun EventPinContent(event: Event) {
Box(
modifier = Modifier
.size(width = 155.dp, height = 55.dp)
.clip(PinMapShape())
.background(MaterialTheme.colorScheme.background)
) {
Row(
modifier = Modifier
.fillMaxWidth()
.offset(x = 10.dp, y = 6.dp),
verticalAlignment = Alignment.CenterVertically,
horizontalArrangement = Arrangement.spacedBy(7.dp)
) {
Icon(
painter = painterResource(EventCategoryPaint(event.category)),
contentDescription = null,
tint = MaterialTheme.colorScheme.primary,
modifier = Modifier.size(24.dp)
)

Text(
text = event.title,
color = MaterialTheme.colorScheme.primary,
style = interBold13to19(),
maxLines = 1,
overflow = TextOverflow.Ellipsis,
)
}
}
}

@Composable
private fun ClusterPinContent(count: Int) {
Box(
modifier = Modifier
.wrapContentSize()
.defaultMinSize(minWidth = 100.dp)
.height(55.dp)
.clip(PinMapShape())
.background(MaterialTheme.colorScheme.background)
.padding(horizontal = 10.dp)
) {
Row(
modifier = Modifier
.fillMaxWidth()
.padding(vertical = 6.dp),
verticalAlignment = Alignment.CenterVertically,
horizontalArrangement = Arrangement.spacedBy(7.dp)
) {
NumberBox(
number = count,
modifier = Modifier.size(width = 39.dp, height = 28.dp)
)
Text(
text = stringResource(Res.strings.events),
color = MaterialTheme.colorScheme.primary,
style = interBold13to19(),
maxLines = 1,
overflow = TextOverflow.Ellipsis,
)
}
}
}
```

now I use ViewAnnotation
```kotlin
events.forEach { event ->
val point = Point.fromLngLat(event.longitude, event.latitude)

ViewAnnotation(
options = viewAnnotationOptions {
geometry(point)
allowOverlap(true)
},
modifier = Modifier.clickable { component.onEventClick(event) }
) {
EventPinContent(event)
}
}
```

I tried to use PointAnnotationGroup but it draws a circular cluster, I also tried to combine the two approaches, but because ViewAnnotationNode and MapApplier internal

in the second picture, it's working.
https://docs.mapbox.com/android/assets/ideal-img/maps-guides-standard-usecases.92d97f8.960.png

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by comparing the Compose ViewAnnotation entry point with PointAnnotationGroup and the mentioned ViewAnnotationNode and MapApplier internals. Done means a custom Compose cluster appearance is rendered instead of the default circular cluster while preserving the event annotations and interactions.

Written by the indexing model from the issue text.

Assessment

Tech stack
android, kotlin
Domain
mobile
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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