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# MCNearbyServiceBrowserDelegate

The `MCNearbyServiceBrowserDelegate` protocol defines methods that a `MCNearbyServiceBrowser` object’s delegate can implement to handle browser-related events.

```
protocol MCNearbyServiceBrowserDelegate : NSObjectProtocol
```

## Overview

No assumption should be made about which queue the delegate methods are called on. It is the receiver’s responsibility to ensure that any `UIKit` updates are called on the main thread.

## Topics

### Error Handling Delegate Methods

[`browser(_:didNotStartBrowsingForPeers:)`](/documentation/MultipeerConnectivity/MCNearbyServiceBrowserDelegate/browser(_:didNotStartBrowsingForPeers:))

Called when a browser failed to start browsing for peers.

### Peer Discovery Delegate Methods

[`browser(_:foundPeer:withDiscoveryInfo:)`](/documentation/MultipeerConnectivity/MCNearbyServiceBrowserDelegate/browser(_:foundPeer:withDiscoveryInfo:))

Called when a nearby peer is found.

[`browser(_:lostPeer:)`](/documentation/MultipeerConnectivity/MCNearbyServiceBrowserDelegate/browser(_:lostPeer:))

Called when a nearby peer is lost.


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