Contents

DeviceDiscoveryExtension

Stream media to a third-party device that a user selects in a system menu.

Overview

Use DeviceDiscoveryExtension (DDE) to discover third-party media receivers to which your app can stream AV content.

When a user invokes your app’s media-streaming UI, you can offer a third-party, local-network, or Bluetooth device as a streaming destination in a route picker view (AVRoutePickerView). The figure below illustrates actors in the discovery process. As depicted in the System section, your app’s device discovery extension loads when the view displays.

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Once the extension loads:

  • The extension runs in a system process and searches the local network and Bluetooth devices for a specific media receiver.

  • When the extension finds the device, it returns the device to the system, which displays it in the picker view as an available option.

  • The user makes a selection and the system passes the chosen device to the app, which can then stream media to the device.

Because DDE runs in a system sandbox, the extension doesn’t need to ask the user for local-network or Bluetooth permissions. The picker view displays discovered third-party devices and protocols in the same system menu as AirPlay, which provides a unified device-selection experience.

Topics

Essentials

Extension

Life cycle

Device information

Errors

Reference