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# isPreferredNetworkAvailable(completion:)

Indicates whether a preferred network is available.

```
func isPreferredNetworkAvailable(completion: @escaping @Sendable (Bool) -> Void)
```

```
func isPreferredAvailable() async -> Bool
```

## Parameters

`completion`

The completion handler that returns the result of the preferred network status.

## Discussion> Concurrency note: You can call this method from synchronous code using a completion handler,
> as shown on this page, or you can call it as an asynchronous method that has the
> following declaration:
> 
> ```swift
> func isPreferredAvailable() async -> Bool
> ```
> 
> For information about concurrency and asynchronous code in Swift, see <doc://com.apple.documentation/documentation/Swift/calling-objective-c-apis-asynchronously>.

Call the method as follows:

```swift
func obtainPreferredAvailable() async -> (NSString?) {
    let client = THClient()
    var bIsPreferredAvailable:Bool?
    bIsPreferredAvailable = await client.isPreferredAvailable()
    let str = ((bIsPreferredAvailable == true) ? "true" : "false")
    return str as NSString;
}
```

---

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