---
title: "pan"
description: "Sends a pan gesture with the given total [offset]. The event will be sent starting at the current
event time.

To send a pan gesture with a curve, use `pan(curve, durationMillis, keyTimes)`."
type: "function"
---

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


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


```kotlin
fun TrackpadInjectionScope.pan(offset: Offset)
```


Sends a pan gesture with the given total `offset`. The event will be sent starting at the current
event time.

To send a pan gesture with a curve, use `pan(curve, durationMillis, keyTimes)`.

#### Parameters

| | |
| --- | --- |
| offset | The amount of pan |




<div class='sourceset sourceset-common'>Common</div>


```kotlin
fun TrackpadInjectionScope.pan(
    curve: (timeMillis: Long) -> Offset,
    durationMillis: Long = 200,
    keyTimes: List<Long> = emptyList(),
)
```


Sends a pan gesture with the offsets in the panning coordinate space following the given `curve`.
It is expected that the curve starts at `Offset.Zero`, as a pan gesture starts with no delta, and
then move outward from the origin.

To send a pan with just a single amount, use `pan(offset)`.

#### Parameters

| | |
| --- | --- |
| curve | The function that describes the gesture. The argument passed to the function is the time in milliseconds since the start of the swipe, and the return value is the location of the pan from the origin at that point in time. |
| durationMillis | The duration of the gesture |
| keyTimes | An optional list of timestamps in milliseconds at which a pan move event must be sampled |




## Code Examples
### trackpadInputPan
```kotlin
fun trackpadInputPan() {
    composeTestRule.onNodeWithTag("verticalScrollable").performTrackpadInput {
        pan(Offset(0f, 100f))
    }
}
```