Merge "Update the javadoc for new startObservingDevicePresence API" into main

    }

    /**

     * Register to receive callbacks whenever the associated device comes in and out of range.

     * Register to receive callbacks whenever the associated device's presence changes.

     * The presence could be:

     * <ul>

     *   <li>BLE range changes (in/out)</li>

     *   <li>Bluetooth connection status changes (connected/disconnected)</li>

     * </ul>

     *

     * <p>The app doesn't need to remain running in order to receive its callbacks.</p>

     * <p>Caller app must implement the {@link CompanionDeviceService} to receive callbacks via

     * {@link CompanionDeviceService#onDevicePresenceEvent(DevicePresenceEvent)}.

     * The system will bind to the implemented {@link CompanionDeviceService} to deliver the

     * callbacks./p>

     *

     * <p>Calling app must check for feature presence of

     * {@link PackageManager#FEATURE_COMPANION_DEVICE_SETUP} before calling this API.</p>