shiyifan

@MainThread
    public void observe(@NonNull LifecycleOwner owner, @NonNull Observer<? super T> observer) {
        assertMainThread("observe");
        if (owner.getLifecycle().getCurrentState() == DESTROYED) {
            // ignore
            return;
        }
        LifecycleBoundObserver wrapper = new LifecycleBoundObserver(owner, observer);
        /*
         * mObservers是一个map，key是Observer, value是ObserverWrapper，用来存放所有该LiveData对象的观察者。

shiyifan

@Component("indexRandomer")
public class IndexRandomer implements Randomer {
    @Override
    public List<Integer> nextIntList(int bound, int length) {
        List<Integer> list = IntStream.range(0, bound).collect(ArrayList::new, ArrayList::add, ArrayList::addAll);
        Random rnd = new Random();
        List<Integer> result = new ArrayList<>(length);
        for (int i = 0; i < length; i++, bound--) {
            int idx = rnd.nextInt(bound);
            result.add(list.get(idx));

shiyifan

ZZZ...
First Gist...