RXJava基本使用（二）

優雅的鏈式調用：

public class MainActivity extends AppCompatActivity {

    public static final String TAG = "TAG";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Observable.create(new ObservableOnSubscribe<Integer>() {
            @Override
            public void subscribe(ObservableEmitter<Integer> emitter) throws Throwable {
                emitter.onNext(1);
                emitter.onNext(2);
                emitter.onNext(3);
                emitter.onComplete();
            }
        }).subscribe(new Observer<Integer>() {
            @Override
            public void onSubscribe(Disposable d) {
                Log.d(TAG, "開始採用subscribe連接");
            }

            @Override
            public void onNext(@NonNull Integer integer) {
                Log.d(TAG, "對Next事件作出響應" + integer);
            }

            @Override
            public void onError(Throwable e) {
                Log.d(TAG, "對Error事件作出響應");
            }

            @Override
            public void onComplete() {
                Log.d(TAG, "對Complete事件作出響應");
            }
        });

    }
}

日誌：

02-17 09:44:45.842 7779-7779/com.example.app2 D/TAG: 開始採用subscribe連接
02-17 09:44:45.843 7779-7779/com.example.app2 D/TAG: 對Next事件作出響應1
02-17 09:44:45.843 7779-7779/com.example.app2 D/TAG: 對Next事件作出響應2
02-17 09:44:45.843 7779-7779/com.example.app2 D/TAG: 對Next事件作出響應3
02-17 09:44:45.843 7779-7779/com.example.app2 D/TAG: 對Complete事件作出響應