As an example. In an Activity we have our TimerViewModel object (extended ViewModel), named mTimerViewModel. mTimerViewModel.getTimer() 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.getTimer() 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?

Alajauan Adams · Accepted Answer

mTimerViewModel.getTimer().observe(this, new Observer<Long>() { @Overridepublic void onChanged(Long aLong) { callAnyChangeUIMethodHere(aLong)}});

Alajauan Adams · Answer

mTimerViewModel.getTimer().getValue().toString().observe(new Observer<Long>() { @Overridepublic void onChanged(Long aLong) { callAnyChangeUIMethodHere(aLong)}});

Alajauan Adams · Answer

mTimerViewModel.observe(new Observer<Long>() { @Overridepublic void onChanged(Long aLong) { callAnyChangeUIMethodHere(aLong)}});

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