我有3個觀察對象可觀察拉鍊爲了
Observable<CharSequence> o1 = RxTextView.textChanges(quitBuddyName);
Observable<CharSequence> o2 = RxTextView.textChanges(quitBuddyPhone);
Observable<CircleInviteListAdapter> o3 = RxAdapter.dataChanges(listAdapter);
Observable.zip(o1, o2, o3, (a, b, c) -> {
return a.length() > 0 && b.length() > 0 && c != null;
}).subscribe(finishBtn::setEnabled);
問題:爲什麼在我設置適配器第一,然後輸入文本未啓用完成按鈕?