43     protected ImageButton mStart;  field in TimerSetupView
52             if (mStart != null) {
53                 mStart.setScaleX(1.0f);
54                 mStart.setScaleY(1.0f);
55                 mStart.setVisibility(View.INVISIBLE);
63             if (mStart != null) {
64                 mStart.setVisibility(View.VISIBLE);
125         mStart = start;  in registerStartButton()
130         if (mStart != null) {  in initializeStartButtonVisibility()
131             mStart.setVisibility(isInputHasValue() ? View.VISIBLE : View.INVISIBLE);  in initializeStartButtonVisibility()
153         if (mStart == null || mStart.getVisibility() == finalVisibility) {  in setFabButtonVisibility()
159                 mStart, show ? 0.0f : 1.0f, show ? 1.0f : 0.0f);  in setFabButtonVisibility()