During App uninstall ,How to cancel the Download?

Question

In my app i have started download service,it is working fine in background.During download my testing team doing force stop and clear data or Uninstall.But After uninstall or clear data still my Download service is running in background.During download i have installed the same app again but it is misbehaving some thing.While uninstall or clear data or force stop i have to cancel the download How?

public class FileDownloaderService extends IntentService {


    private CarcarePreferences preferences;

    public FileDownloaderService() {
        super("FileDownloaderService");
    }

    @Override
    public void onCreate() {
        super.onCreate();

        preferences = CarcarePreferences.getCarcarePreferencesObject(getApplicationContext());
        DBHelper.getInstance(getApplicationContext()).open();

        downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
    }

    @Override
    protected void onHandleIntent(Intent intent) {
        Bundle extras = intent.getExtras();

        if (extras == null) {
            return;
        }

        if (extras.containsKey("ResultReceiver")) {
            resultReceiver = extras.getParcelable("ResultReceiver");
        }

        if (extras.containsKey("ContentToDownload")) {
            contentToDownload = extras.getInt("ContentToDownload");
        } else {
            return;
        }

        if (contentToDownload != Carcare.ContentToDownload.IMAGES) {
            isDefaultVehicle = extras.getBoolean("IsDefaultVehicle");
            fetchVehicle();
        }

        switch (contentToDownload) {
            case Carcare.ContentToDownload.HEADUNIT_IMAGES:
                if (extras.containsKey("HeadUnits")) {
                    headUnits = (ArrayList<Unit>) extras.getSerializable("Units");
                    downloadHeadUnits();
                    resultReceiver.send(0, null);
                }
                break;


        }
    }

    private void fetchVehicle() {
        Object[] objects;

        if (isDefaultVehicle) {
            objects = DBAdapter.getAllVehicles(preferences.getDefaultModel(),
                    preferences.getDefaultYear(), isDefaultVehicle);
        } else {
            objects = DBAdapter.getAllVehicles(preferences.getCurrentModel(),
                    preferences.getCurrentYear(), isDefaultVehicle);
        }

        vehicle = (Vehicle) objects[0];
    }

    private void downloadHeadUnits() {
        mHeadUnitDir = SdUtils.getDir(this);
        //clearHeadUnits();

        for (CUnit unit : Units) {

            String fileName = mDir + "/" + unit.getGuid() + ".png";
            InputStream stream = null;
            final HttpGet httpRequest = new HttpGet(unit.getHuImageUrl());
            httpRequest.setHeader(HTTP.CONN_DIRECTIVE, HTTP.CONN_KEEP_ALIVE);
            try {
                File file = new File(fileName);
                if (!file.exists()) {
                    FileOutputStream out = new FileOutputStream(file); //openFileOutput(fileName);
                    stream = new DefaultHttpClient().execute(httpRequest).getEntity().getContent();
                    Bitmap bitmap = BitmapFactory.decodeStream(stream);
                    bitmap.compress(Bitmap.CompressFormat.PNG, 100, out);
                }
            } catch (IOException ex) {
                ex.printStackTrace();
            } catch (IllegalStateException ex) {
                ex.printStackTrace();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

    private void download() {
        cancelDownload(Carcare.FileType.QRG, vehicle.getPath());
        deleteDoc(vehicle.getQRGPath());

        DownloadManager.Request request = new DownloadManager.Request(Uri.parse(vehicle.getUrl()));
        request.setDestinationUri(Uri.parse(vehicle.getPath()));
        request.setTitle("Unit");
        request.setDescription("Quick Reference Guide");

        preferences.setDownloadID(Carcare.FileType.QRG, downloadManager.enqueue(request));
    }
}

**While uninstall the service is running?** ,that's not possible even in a dream.While uninstallation of the application, all the resources related to the application are removed with in an instant.. — nobalG, Nov 24 '14 at 10:30
@nobalG it is happening ,by using intent service only i have started the service — Boopathi, Nov 24 '14 at 10:33
Can you come up with some source code of how have you started the download. — Pramod Ravikant, Nov 24 '14 at 10:37
@MysticMagic i have checked with your code...service is not canceled — Boopathi, Nov 25 '14 at 07:55
Ohk.. try [this](http://stackoverflow.com/a/16093999/1777090) — MysticMagicϡ, Nov 25 '14 at 09:23

score 0 · Answer 1 · edited May 23 '17 at 11:50

0

Take a look at the remove() method of the DownloadManager.

It says:

public int remove (long... ids) Added in API level 9

Cancel downloads and remove them from the download manager. Each download will be stopped if it was running, and it will no longer be accessible through the download manager. If there is a downloaded file, partial or complete, it is deleted. Parameters ids the IDs of the downloads to remove Returns
the number of downloads actually removed

Edit

To intercept your application uninstall take a look at this answer.

edited May 23 '17 at 11:50

Community

1
1

answered Nov 24 '14 at 11:21

Shubhang Malviya

1,525
11
17

@Boopathi I've edited my answer to include how to intercept app unistall see if that works for you. – Shubhang Malviya Nov 25 '14 at 05:58

score 0 · Answer 2 · answered Nov 24 '14 at 11:28

0

You must use a Service.

In the Service's onDestroy(), you can write the code to finish the DownloadManager.

The Service will be killed before the app is about to uninstall. This way the Download will stop.

answered Nov 24 '14 at 11:28

Pramod Ravikant

1,039
2
11
28

Service how to get call the ondestroy method while uninstalling – Boopathi Nov 24 '14 at 12:00

During App uninstall ,How to cancel the Download?

2 Answers2