Cannot invoke setValue on a background thread

question

LiveData更新数据报错解决方法java.lang.IllegalStateException: Cannot invoke setValue on a background thread

solve

将setValue(T)改为postValue(T)即可。

reason

MutableLiveData provides two functions postValue and setValue

• setValue(T) must be called in the main thread,
• postValue(T) can be called in the main thread or in the child thread;

public class MutableLiveData<T> extends LiveData<T> {
    @Override
    public void postValue(T value) 
    @Override
    public void setValue(T value)
}