> ## Documentation Index
> Fetch the complete documentation index at: https://docs.supernote.com/llms.txt
> Use this file to discover all available pages before exploring further.

# registerMotionListener

> Register a touch move event listener.

```ts theme={null}
registerMotionListener(
  registerType: number,
  listener: PluginEventListener
): PluginEventSubscription;
```

**Parameters**

| Parameter      | Type                  | Description                                                                                                                                                                                                                                       |
| -------------- | --------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `registerType` | `number`              | Registration priority: `0` always first, `1` normal order, `2` always last                                                                                                                                                                        |
| `listener`     | `PluginEventListener` | Event callback object that implements `onMsg(msg)`. Internally, this method is equivalent to registering a `motion_event` touch move event listener. The callback `msg` is [`MotionEvent`](/en/api-reference/supernote-plugin/types/motion-event) |

**Returns**

* `PluginEventSubscription`: subscription object. Calling `remove()` unregisters the listener and removes the local subscription.

## Example

```ts wrap theme={null}
import { PluginManager, type MotionEvent } from 'sn-plugin-lib';

/**
 * Example: register a touch move event listener.
 */
export async function exampleRegisterMotionListener() {
  const sub = PluginManager.registerMotionListener(1, {
    onMsg(msg) {
      const motion = msg as MotionEvent;
      console.log('touch move pointer count:', motion.pointerCount);
      console.log('first pointer id:', motion.pointers[0]?.pointerId);
    },
  });
  return sub;
}
```