225     private Handler mBackgroundHandler;  field in Camera2BasicFragment
246             mBackgroundHandler.post(new ImageSaver(reader.acquireNextImage(), mFile));
518                         mOnImageAvailableListener, mBackgroundHandler);  in setUpCameraOutputs()
616             manager.openCamera(mCameraId, mStateCallback, mBackgroundHandler);  in openCamera()
655         mBackgroundHandler = new Handler(mBackgroundThread.getLooper());  in startBackgroundThread()
666             mBackgroundHandler = null;  in stopBackgroundThread()
714                                         mCaptureCallback, mBackgroundHandler);  in createCameraPreviewSession()
783                     mBackgroundHandler);  in lockFocus()  local
801                     mBackgroundHandler);  in runPrecaptureSequence()  local
876                     mBackgroundHandler);  in unlockFocus()  local
880                     mBackgroundHandler);  in unlockFocus()