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  "title" : "DevicePickerSupportedAction"
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# DevicePickerSupportedAction

An environment value that indicates whether the current device supports device discovery.

```
struct DevicePickerSupportedAction
```

## Overview

Access the action using the `.devicePickerSupports` key. Then call it as a function, passing the same browse descriptor and parameters you use to search for devices.

```swift
struct SettingsView: View {

    @Environment{\.devicePickerSupports} var myDevicePickerSupports
    @Binding var showDevicePicker: Bool

    var body: some View {
        if myDevicePickerSupports(.applicationService("MyAppService"),
                                  parameters: { .applicationService }) {
            Button("Select A Device") {
                // Display a device picker.
                showDevicePicker = true
            }
        }
    }
}
```

## Topics

### Checking for support

[`func callAsFunction(NWBrowser.Descriptor, parameters: (() -> NWParameters)?) -> Bool`](/documentation/DeviceDiscoveryUI/DevicePickerSupportedAction/callAsFunction(_:parameters:))

Returns a Boolean value that indicates whether the current device supports device discovery.


---

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