Android - 如何在指定时间在后台下载数据

dependencies {
    implementation 'androidx.work:work-runtime:2.5.0'
}

import androidx.work.Worker;
import io.reactivex.Single;

public class DownloadWorker extends Worker {

    public DownloadWorker(
        @NonNull Context context,
        @NonNull WorkerParameters params) {
        super(context, params);
    }

    @NonNull
    @Override
    public Result doWork() {
        // 在这里执行下载操作
        return Result.success();
    }
}

import androidx.work.OneTimeWorkRequest;
import androidx.work.WorkManager;

OneTimeWorkRequest downloadWorkRequest =
        new OneTimeWorkRequest.Builder(DownloadWorker.class)
        .build();

WorkManager.getInstance(getApplicationContext()).enqueue(downloadWorkRequest);

import java.util.concurrent.TimeUnit;

OneTimeWorkRequest downloadWorkRequest =
        new OneTimeWorkRequest.Builder(DownloadWorker.class)
        .setInitialDelay(10, TimeUnit.SECONDS) // 设置延迟时间
        .build();