如何在没有IdlingResource的情况下在Espresso中等待异步任务

import android.os.Handler;
import android.os.Looper;

import androidx.test.espresso.UiController;
import androidx.test.espresso.ViewAction;
import androidx.test.espresso.action.ViewActions;
import androidx.test.espresso.matcher.ViewMatchers;
import androidx.test.platform.app.InstrumentationRegistry;

import org.hamcrest.Matcher;

import java.util.concurrent.CountDownLatch;

import static androidx.test.espresso.Espresso.onView;
import static androidx.test.espresso.action.ViewActions.click;
import static androidx.test.espresso.action.ViewActions.typeText;
import static androidx.test.espresso.matcher.ViewMatchers.withId;

// 异步任务示例类
class AsyncTaskExample {
    interface Callback {
        void onTaskComplete();
    }

    void doAsyncTask(final Callback callback) {
        // 模拟异步任务
        new Handler(Looper.getMainLooper()).postDelayed(new Runnable() {
            @Override
            public void run() {
                // 任务完成后调用回调方法
                callback.onTaskComplete();
            }
        }, 2000); // 模拟任务需要2秒钟完成
    }
}

// Espresso测试类
class ExampleEspressoTest {
    // 等待异步任务完成的方法
    private static void waitForAsyncTask() {
        // 创建一个CountDownLatch，设置初始计数为1
        final CountDownLatch latch = new CountDownLatch(1);

        // 执行异步任务
        AsyncTaskExample asyncTask = new AsyncTaskExample();
        asyncTask.doAsyncTask(new AsyncTaskExample.Callback() {
            @Override
            public void onTaskComplete() {
                // 任务完成时将计数器减1
                latch.countDown();
            }
        });

        // 等待计数器变为0
        try {
            latch.await();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }

    // Espresso测试方法
    public void testAsyncTask() {
        // 执行点击操作
        onView(withId(R.id.button)).perform(click());

        // 等待异步任务完成
        waitForAsyncTask();

        // 执行其他操作
        onView(withId(R.id.editText)).perform(typeText("example"));

        // 断言结果是否符合预期
        onView(withId(R.id.textView)).check(matches(withText("example")));
    }
}