• Shoot with mask

• Shoot without mask

This class android.hardware.camera2.CameraCaptureSession used in CameraHelp is defined in android.hardware.camera2.CameraCaptureSession as a hidden class. The defination is

/**
 * Temporary for migrating to Callback naming
 * @hide
 */
 public static abstract class StateListener extends StateCallback {}

You can replace it with StateCallback