code: package freed.cam.apis.featuredetector.camera2.huawei;
  
  import android.hardware.camera2.CameraCharacteristics;
  import android.os.Build;
  
  import androidx.annotation.RequiresApi;
  
  import java.util.ArrayList;
  import java.util.Arrays;
  import java.util.List;
  
  import camera2_hidden_keys.huawei.CameraCharacteristicsHuawei;
  import freed.cam.apis.featuredetector.camera2.BaseParameter2Detector;
  import freed.settings.SettingKeys;
  import freed.utils.Log;
  
  public class SecondarySensorSizeDetector extends BaseParameter2Detector {
      private final String TAG = SecondarySensorSizeDetector.class.getSimpleName();
      @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
      @Override
      protected void findAndFillSettings(CameraCharacteristics cameraCharacteristics) {
          int[] hdc = cameraCharacteristics.get(CameraCharacteristicsHuawei.HUAWEI_SENCONDARY_SENSOR_SUPPORTED_SIZE);
          if (hdc != null && hdc.length > 0) {
              Log.d(TAG, Arrays.toString(hdc));
              List<String> ls = new ArrayList<>();
              for (int i = 0; i < hdc.length; i += 2) {
                  String t = hdc[i] + "x" + hdc[i + 1];
                  ls.add(t);
              }
              if (ls.size() > 0) {
                  settingsManager.get(SettingKeys.SECONDARY_SENSOR_SIZE).setValues(ls.toArray(new String[ls.size()]));
                  settingsManager.get(SettingKeys.SECONDARY_SENSOR_SIZE).setIsSupported(true);
                  settingsManager.get(SettingKeys.SECONDARY_SENSOR_SIZE).set(ls.get(0));
                  Log.d(TAG, "HUAWEI_SENCONDARY_SENSOR_SUPPORTED_SIZE " + ls);
              } else
                  Log.d(TAG, "HUAWEI_SENCONDARY_SENSOR_SUPPORTED_SIZE not supported ");
          }
      }
  }
  