RxJava2 / RxAndroid2操作符ofType：根据类型选择输出结果

例如：

package zhangphil.app;import android.os.Bundle;import android.support.annotation.Nullable;import android.support.v7.app.AppCompatActivity;import android.util.Log;import io.reactivex.Observable;import io.reactivex.android.schedulers.AndroidSchedulers;import io.reactivex.disposables.CompositeDisposable;import io.reactivex.observers.DisposableObserver;import io.reactivex.schedulers.Schedulers;public class MainActivity extends AppCompatActivity {    private final String TAG = getClass().getSimpleName();    private CompositeDisposable mCompositeDisposable = new CompositeDisposable();    private Object[] test_data = {            1, "zhang", 2, 3, "phil", 5, 5, 6, 7, 7, 8, 9    }; // 故意设置若干重复的数据，等待去重复数据    @Override    public void onCreate(@Nullable Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        test();    }    private void test() {        DisposableObserver disposableObserver = new DisposableObserver

输出：

05-18 10:28:43.170 14762-14762/zhangphil.app D/MainActivity: #####开始#####05-18 10:28:43.170 14762-14762/zhangphil.app D/数据: zhang05-18 10:28:43.170 14762-14762/zhangphil.app D/MainActivity: #####结束#####05-18 10:28:43.170 14762-14762/zhangphil.app D/MainActivity: #####开始#####05-18 10:28:43.170 14762-14762/zhangphil.app D/数据: phil05-18 10:28:43.170 14762-14762/zhangphil.app D/MainActivity: #####结束#####05-18 10:28:43.171 14762-14762/zhangphil.app D/MainActivity: onComplete

结果如预期，只输出字符串类型的数据。