Difference of setValue() & postValue() in MutableLiveData

Question

There are two ways that make change value of MutableLiveData. But what is difference between setValue() & postVa

Answer 1

This is not a direct answer to the above problem. The answers from Sagar and w201 are awesome. But a simple rule of thumb I use in ViewModels for MutableLiveData is:

private boolean isMainThread() {
    return Looper.myLooper() == Looper.getMainLooper();
}

private MutableLiveData mutVal = new MutableLiveData<>(false);
public LiveData getMutVal() { return this.mutVal;  }
public void setMutVal(boolean val) {
    if (isMainThread()) mutVal.setValue(val);
    else mutVal.postValue(val);
}

Replace mutVal with your desired value.