---
title: "readAttributeBarrierPosition(completionHandler:)"
framework: matter
role: symbol
role_heading: Instance Method
path: "matter/mtrbaseclusterbarriercontrol/readattributebarrierposition(completionhandler:)"
---

# readAttributeBarrierPosition(completionHandler:)

## Declaration

```swift
func readAttributeBarrierPosition(completionHandler: @escaping @Sendable (NSNumber?, (any Error)?) -> Void)
```

```swift
func readAttributeBarrierPosition() async throws -> NSNumber
```