question: convenience method for com.google.zxing.client.android.captureactivity concode_field_sep int MAX_FRAME_HEIGHT concode_elem_sep String TAG concode_elem_sep int requestedFramingRectHeight concode_elem_sep AutoFocusManager autoFocusManager concode_elem_sep CameraConfigurationManager configManager concode_elem_sep WindowManager windowManager concode_elem_sep PreviewCallback previewCallback concode_elem_sep Rect framingRectInPreview concode_elem_sep int MAX_FRAME_WIDTH concode_elem_sep Context context concode_elem_sep Rect framingRect concode_elem_sep boolean initialized concode_elem_sep int requestedFramingRectWidth concode_elem_sep Camera camera concode_elem_sep int MIN_FRAME_WIDTH concode_elem_sep boolean previewing concode_elem_sep int MIN_FRAME_HEIGHT concode_field_sep void requestPreviewFrame concode_elem_sep void stopPreview concode_elem_sep boolean isOpen concode_elem_sep void startPreview concode_elem_sep Rect getFramingRect concode_elem_sep void setManualFramingRect concode_elem_sep PlanarYUVLuminanceSource buildLuminanceSource concode_elem_sep void closeDriver concode_elem_sep void openDriver concode_elem_sep Rect getFramingRectInPreview
target: void function ( boolean arg0 ) { if ( camera != null ) { if ( autoFocusManager != null ) { autoFocusManager . stop ( ) ; } configManager . setTorch ( camera , arg0 ) ; if ( autoFocusManager != null ) { autoFocusManager . start ( ) ; } } }