beginTraceAsync 226 apps/HelloAndroidCamera2/src/com/android/ex/camera2/pos/AutoFocusStateMachine.java beginTraceAsync("AFSM_lockAutoFocus"); beginTraceAsync 308 apps/HelloAndroidCamera2/src/com/android/ex/camera2/pos/AutoFocusStateMachine.java beginTraceAsync("AFSM_setActiveAutoFocus");