如何在 Android 中从 WorkManager 取消工作？

Question

我已将转换为 String 的 WorkManager UUID 保存在 Realm 数据库中。

这是代码 -

Constraints constraints = new Constraints.Builder().setRequiredNetworkType(NetworkType.CONNECTED).build();
            Data inputData = new Data.Builder().putString("downloadUrl", downloadUrl).
                    putString("destinationFolder", destinationFolder).
                    putInt("suraNumber", Integer.parseInt(suraNumber)).
                    putString("fileName", fileName).
                    putBoolean("downloadFileTypeBangla", downloadFileTypeBangla).
                    putBoolean("downloadFileTypeArabic", downloadFileTypeArabic).
                    putBoolean("downloadFileTypeArabicWithBangla", downloadFileTypeArabicWithBangla).build();
            OneTimeWorkRequest downloadWork = new OneTimeWorkRequest.Builder(DownloadWorker.class).setConstraints(constraints).setInputData(inputData).build();
            WorkManager.getInstance().enqueue(downloadWork);

            Sura sura = dbOperations.getSuraById(Integer.parseInt(suraNumber));
            if(sura != null){
                dbOperations.updateSura(sura, Integer.parseInt(suraNumber), sura.getBnAudioDownloadStatus(), sura.getArAudioDownloadStatus(), 1);
                realm.beginTransaction();
                DownloadStatusModel downloadStatusModel = new DownloadStatusModel();
                downloadStatusModel.setId(new RealmCommonService(realm).newId(DownloadStatusModel.class));
                downloadStatusModel.setDownloadFileType("ArabicWithBangla");
                downloadStatusModel.setActiveStatus(true);
                downloadStatusModel.setDownloadDate(new Date());
                downloadStatusModel.setDownloadedSuraNo(sura.getSuraNo());
                downloadStatusModel.setDownloadFileSize(sura.getArBnAudioFileSize());
                downloadStatusModel.setDownloadReferenceId(downloadWork.getId().toString());
                downloadStatusModel.setDownloadedSuraNameBangla(sura.getSuraNameBangla());
                downloadStatusModel.setDownloadStatus(1);
                realm.copyToRealm(downloadStatusModel);
                realm.commitTransaction();
            }

现在我尝试使用这行代码取消 Work 但没有成功。

WorkManager.getInstance().cancelWorkById(UUID.fromString(downloadStatusModel.getDownloadReferenceId()));

如有任何帮助，我们将不胜感激

谢谢

Answer 1

如果您使用的是 Worker，则需要覆盖 onStopped() method and use that as the signal for your worker to cancel its ongoing work. Within your doWork() method, you can also use isStopped() 以检查取消。

如何在 Android 中从 WorkManager 取消工作？

How to cancel Work from WorkManager in Android?

android

realm

android-workmanager