Android后台与前台数据同步

OneTimeWorkRequest syncWorkRequest =
    new OneTimeWorkRequest.Builder(SyncWorker.class)
        .setConstraints(new Constraints.Builder()
            .setRequiredNetworkType(NetworkType.CONNECTED)
            .build())
        .build();

WorkManager.getInstance(context).enqueue(syncWorkRequest);

public class SyncService extends Service {
    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        Notification notification = new NotificationCompat.Builder(this, CHANNEL_ID)
            .setContentTitle("Syncing Data")
            .setSmallIcon(R.drawable.ic_sync)
            .build();

        startForeground(1, notification);
        // 执行同步操作
        return START_NOT_STICKY;
    }

    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }
}

@Dao
public interface DataDao {
    @Update
    void update(Data data);

    @Query("SELECT * FROM data WHERE id = :id")
    Data getDataById(int id);
}

public void updateData(Data data) {
    Data existingData = dataDao.getDataById(data.getId());
    if (existingData.getVersion() == data.getVersion()) {
        data.setVersion(data.getVersion() + 1);
        dataDao.update(data);
    } else {
        // 处理冲突
    }
}