---
title: "drag"
description: "Reads position change events for [pointerId] and calls [onDrag] for every change in position. If
[pointerId] is raised, a new pointer is chosen from those that are down and if none exist, the
method returns. This does not wait for touch slop.


Example Usage:"
type: "function"
---

<div class='type'>Function</div>


<a id='references'></a>
<div class='sourceset sourceset-common'>Common</div>


```kotlin
suspend fun AwaitPointerEventScope.drag(
    pointerId: PointerId,
    onDrag: (PointerInputChange) -> Unit,
): Boolean
```


Reads position change events for `pointerId` and calls `onDrag` for every change in position. If
`pointerId` is raised, a new pointer is chosen from those that are down and if none exist, the
method returns. This does not wait for touch slop.


Example Usage:

#### Returns

| | |
| --- | --- |
|  | `true` if the drag completed normally or `false` if the drag motion was canceled by another gesture detector consuming position change events. |




## Code Examples
### DragSample
```kotlin
@Composable
fun DragSample() {
    val offsetX = remember { mutableStateOf(0f) }
    val offsetY = remember { mutableStateOf(0f) }
    var size by remember { mutableStateOf(Size.Zero) }
    Box(Modifier.fillMaxSize().onSizeChanged { size = it.toSize() }) {
        Box(
            Modifier.offset { IntOffset(offsetX.value.roundToInt(), offsetY.value.roundToInt()) }
                .size(50.dp)
                .background(Color.Blue)
                .pointerInput(Unit) {
                    awaitEachGesture {
                        val down = awaitFirstDown()
                        val change =
                            awaitTouchSlopOrCancellation(down.id) { change, over ->
                                val original = Offset(offsetX.value, offsetY.value)
                                val summed = original + over
                                val newValue =
                                    Offset(
                                        x = summed.x.coerceIn(0f, size.width - 50.dp.toPx()),
                                        y = summed.y.coerceIn(0f, size.height - 50.dp.toPx()),
                                    )
                                change.consume()
                                offsetX.value = newValue.x
                                offsetY.value = newValue.y
                            }
                        if (change != null) {
                            drag(change.id) {
                                val original = Offset(offsetX.value, offsetY.value)
                                val summed = original + it.positionChange()
                                val newValue =
                                    Offset(
                                        x = summed.x.coerceIn(0f, size.width - 50.dp.toPx()),
                                        y = summed.y.coerceIn(0f, size.height - 50.dp.toPx()),
                                    )
                                it.consume()
                                offsetX.value = newValue.x
                                offsetY.value = newValue.y
                            }
                        }
                    }
                }
        )
    }
}
```