---
title: "init(identifier:displayName:supportedFamilies:)"
framework: clockkit
role: symbol
role_heading: Initializer
path: "clockkit/clkcomplicationdescriptor/init(identifier:displayname:supportedfamilies:)"
---

# init(identifier:displayName:supportedFamilies:)

Returns a new complication descriptor.

## Declaration

```swift
convenience init(identifier: String, displayName: String, supportedFamilies: [CLKComplicationFamily])
```

## Parameters

- `identifier`: A string that uniquely identifies the descriptor.
- `displayName`: A localized name that ClockKit shows to the user to identify complications from the descriptor.
- `supportedFamilies`: The families that support this type of complication. Note that different descriptors can support different sets of families.

## See Also

### Creating descriptors

- [init(identifier:displayName:supportedFamilies:userActivity:)](clockkit/clkcomplicationdescriptor/init(identifier:displayname:supportedfamilies:useractivity:).md)
- [init(identifier:displayName:supportedFamilies:userInfo:)](clockkit/clkcomplicationdescriptor/init(identifier:displayname:supportedfamilies:userinfo:).md)