Merge "Disable setting if sensor is convenience." into sc-v2-dev

import static android.provider.Settings.Secure.FACE_UNLOCK_ALWAYS_REQUIRE_CONFIRMATION;

import android.content.Context;

import android.hardware.biometrics.SensorProperties;

import android.hardware.face.FaceManager;

import android.hardware.face.FaceSensorProperties;

import android.provider.Settings;

import androidx.preference.Preference;

import com.android.settings.Utils;

import java.util.List;

/**

 * Preference controller giving the user an option to always require confirmation.

 */

    @Override

    public int getAvailabilityStatus() {

        List<FaceSensorProperties> properties = mFaceManager.getSensorProperties();

        // If a sensor is convenience, it is possible that it becomes weak or strong with

        // an update. For this reason, the sensor is conditionally unavailable.

        if (!properties.isEmpty()

                && properties.get(0).getSensorStrength() == SensorProperties.STRENGTH_CONVENIENCE) {

            return CONDITIONALLY_UNAVAILABLE;

        } else {

            return AVAILABLE;

        }

    }

}