As an example. In an Activity we have our TimerViewModel object (extended ViewModel), named mTimerViewModel. mTimerViewModel.timer method returns a
LiveData value. What can be a correct way to set an observer to change UI in case if data was changed?

Question

As an example. In an Activity we have our TimerViewModel object (extended ViewModel), named mTimerViewModel. mTimerViewModel.timer method returns a

LiveData<Long> value. What can be a correct way to set an observer to change UI in case if data was changed?

Aparecido da Silva Lemos · Accepted Answer

mTimerViewModel!!.timer.observe(this, Observer { aLong -> callAnyChangeUIMethodHere(aLong!!) })

Aparecido da Silva Lemos · Answer

mTimerViewModel!!.timer.value.toString().observe(Observer { aLong -> callAnyChangeUIMethodHere(aLong!!) })

Aparecido da Silva Lemos · Answer

mTimerViewModel.observe(Observer { aLong -> callAnyChangeUIMethodHere(aLong!!) })

List of questions