Example usage for android.database Cursor moveToPosition

List of usage examples for android.database Cursor moveToPosition

  1. HOME
  2. Java
  3. android
  4. android.database.*
  5. Cursor
  6. moveToPosition

Introduction

In this page you can find the example usage for android.database Cursor moveToPosition.

Prototype

boolean moveToPosition(int position);

Source Link

Document

Move the cursor to an absolute position.

Usage

From source file:com.wuman.androidimageloader.ImageLoader.java

/**
 * Pre-fetches the binary content for images referenced by a {@link Cursor},
 * without loading the image data into memory.
 * <p>//from  w w  w  . j  a va 2s.  c  om
 * Pre-fetching should not be used unless a {@link ContentHandler} with
 * support for persistent caching was passed to the constructor.
 * <p>
 * Typically, an {@link Activity} would register a {@link DataSetObserver}
 * and call this method from {@link DataSetObserver#onChanged()} to load
 * off-screen images into a file-based cache when they are not already
 * present in the cache.
 * 
 * @param cursor
 *            the {@link Cursor} containing the image URLs.
 * @param columnIndex
 *            the column index of the image URL. The column value may be
 *            {@code NULL}.
 * @see #prefetch(String)
 */
public void prefetch(Cursor cursor, int columnIndex) {
    for (int position = 0; cursor.moveToPosition(position); position++) {
        String url = cursor.getString(columnIndex);
        if (!TextUtils.isEmpty(url)) {
            prefetch(url);
        }
    }
}

From source file:ca.rmen.android.poetassistant.wotd.WotdLoader.java

@Override
public ResultListData<WotdEntry> loadInBackground() {
    Log.d(TAG, "loadInBackground()");

    List<WotdEntry> data = new ArrayList<>(100);

    Cursor cursor = mDictionary.getRandomWordCursor();
    if (cursor == null || cursor.getCount() == 0)
        return emptyResult();

    try {//from www. ja v a 2 s .co m
        Set<String> favorites = mFavorites.getFavorites();
        Calendar calendar = Wotd.getTodayUTC();
        Calendar calendarDisplay = Wotd.getTodayUTC();
        calendarDisplay.setTimeZone(TimeZone.getDefault());
        Settings.Layout layout = Settings.getLayout(mPrefs);
        for (int i = 0; i < 100; i++) {
            Random random = new Random();
            random.setSeed(calendar.getTimeInMillis());
            String date = DateUtils.formatDateTime(getContext(), calendarDisplay.getTimeInMillis(),
                    DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_ABBREV_ALL);
            int position = random.nextInt(cursor.getCount());
            if (cursor.moveToPosition(position)) {
                String word = cursor.getString(0);
                @ColorRes
                int color = (i % 2 == 0) ? R.color.row_background_color_even : R.color.row_background_color_odd;
                data.add(new WotdEntry(word, date, ContextCompat.getColor(getContext(), color),
                        favorites.contains(word), layout == Settings.Layout.EFFICIENT));
            }
            calendar.add(Calendar.DAY_OF_YEAR, -1);
            calendarDisplay.add(Calendar.DAY_OF_YEAR, -1);

        }

    } finally {
        cursor.close();
    }
    return new ResultListData<>(getContext().getString(R.string.wotd_list_header), false, data);
}

From source file:org.opendatakit.services.instance.provider.InstanceProvider.java

/**
 * This method removes the entry from the content provider, and also removes
 * any associated files. files: form.xml, [formmd5].formdef, formname
 * {directory}//from  ww w . ja  va 2s  . c  o m
 */
@Override
public synchronized int delete(@NonNull Uri uri, String where, String[] whereArgs) {
    possiblyWaitForContentProviderDebugger();

    List<String> segments = uri.getPathSegments();

    if (segments.size() < 2 || segments.size() > 3) {
        throw new SQLException("Unknown URI (too many segments!) " + uri);
    }

    String appName = segments.get(0);
    ODKFileUtils.verifyExternalStorageAvailability();
    ODKFileUtils.assertDirectoryStructure(appName);
    String tableId = segments.get(1);
    // _ID in UPLOADS_TABLE_NAME
    String instanceId = (segments.size() == 3 ? segments.get(2) : null);

    DbHandle dbHandleName = OdkConnectionFactorySingleton.getOdkConnectionFactoryInterface()
            .generateInternalUseDbHandle();
    OdkConnectionInterface db = null;
    List<IdStruct> idStructs = new ArrayList<IdStruct>();
    try {
        // +1 referenceCount if db is returned (non-null)
        db = OdkConnectionFactorySingleton.getOdkConnectionFactoryInterface().getConnection(appName,
                dbHandleName);
        db.beginTransactionNonExclusive();

        boolean success = false;
        try {
            success = ODKDatabaseImplUtils.get().hasTableId(db, tableId);
        } catch (Exception e) {
            WebLogger.getLogger(appName).printStackTrace(e);
            throw new SQLException("Unknown URI (exception testing for tableId) " + uri);
        }

        if (success) {
            // delete the entries matching the filter criteria
            if (segments.size() == 2) {
                where = "(" + where + ") AND (" + InstanceColumns.DATA_INSTANCE_ID + "=? )";
                if (whereArgs != null) {
                    String[] args = new String[whereArgs.length + 1];
                    System.arraycopy(whereArgs, 0, args, 0, whereArgs.length);
                    args[whereArgs.length] = instanceId;
                    whereArgs = args;
                } else {
                    whereArgs = new String[] { instanceId };
                }
            }

            internalUpdate(db, uri, appName, tableId);

            Cursor del = null;
            try {
                del = internalQuery(db, uri, appName, tableId, instanceId, null, where, whereArgs, null);
                del.moveToPosition(-1);
                while (del.moveToNext()) {
                    String iId = CursorUtils.getIndexAsString(del, del.getColumnIndex(InstanceColumns._ID));
                    String iIdDataTable = CursorUtils.getIndexAsString(del,
                            del.getColumnIndex(InstanceColumns.DATA_INSTANCE_ID));
                    idStructs.add(new IdStruct(iId, iIdDataTable));
                    String path = ODKFileUtils.getInstanceFolder(appName, tableId, iIdDataTable);
                    File f = new File(path);
                    if (f.exists()) {
                        if (f.isDirectory()) {
                            FileUtils.deleteDirectory(f);
                        } else {
                            f.delete();
                        }
                    }

                }
            } catch (IOException e) {
                WebLogger.getLogger(appName).printStackTrace(e);
                throw new IllegalArgumentException("Unable to delete instance directory: " + e.toString());
            } finally {
                if (del != null) {
                    del.close();
                }
            }
        } else {
            // delete anything we find, since the table doesn't exist
            Cursor del = null;
            try {
                where = InstanceColumns.DATA_TABLE_TABLE_ID + "=?";
                whereArgs = new String[] { tableId };
                del = db.query(DatabaseConstants.UPLOADS_TABLE_NAME, null, where, whereArgs, null, null, null,
                        null);
                del.moveToPosition(-1);
                while (del.moveToNext()) {
                    String iId = CursorUtils.getIndexAsString(del, del.getColumnIndex(InstanceColumns._ID));
                    String iIdDataTable = CursorUtils.getIndexAsString(del,
                            del.getColumnIndex(InstanceColumns.DATA_INSTANCE_ID));
                    idStructs.add(new IdStruct(iId, iIdDataTable));
                    String path = ODKFileUtils.getInstanceFolder(appName, tableId, iIdDataTable);
                    File f = new File(path);
                    if (f.exists()) {
                        if (f.isDirectory()) {
                            FileUtils.deleteDirectory(f);
                        } else {
                            f.delete();
                        }
                    }
                }
            } catch (IOException e) {
                WebLogger.getLogger(appName).printStackTrace(e);
                throw new IllegalArgumentException("Unable to delete instance directory: " + e.toString());
            } finally {
                if (del != null) {
                    del.close();
                }
            }
        }

        for (IdStruct idStruct : idStructs) {
            db.delete(DatabaseConstants.UPLOADS_TABLE_NAME, InstanceColumns.DATA_INSTANCE_ID + "=?",
                    new String[] { idStruct.idUploadsTable });
            db.delete(tableId, DATA_TABLE_ID_COLUMN + "=?", new String[] { idStruct.idDataTable });
        }
        db.setTransactionSuccessful();
    } finally {
        if (db != null) {
            try {
                if (db.inTransaction()) {
                    db.endTransaction();
                }
            } finally {
                try {
                    db.releaseReference();
                } finally {
                    // this closes the connection
                    OdkConnectionFactorySingleton.getOdkConnectionFactoryInterface().removeConnection(appName,
                            dbHandleName);
                }
            }
        }
    }
    getContext().getContentResolver().notifyChange(uri, null);
    return idStructs.size();
}

From source file:fr.mixit.android.ui.adapters.MyPlanningAdapter.java

@Override
public void bindView(View view, Context context, Cursor cursor) {
    final PlanningViewHolder holder = (PlanningViewHolder) view.getTag();

    if (cursor != null) {
        final int oldPosition = cursor.getPosition();
        final long start = cursor.getLong(MixItContract.Sessions.PROJ_PLANNING.START);
        final String header = (String) DateUtils.formatPlanningHeader(start);

        long oldStart = 0;
        String oldHeader = null;//  w w w .  j a v a 2 s  . co m
        if (cursor.moveToPrevious()) {
            oldStart = cursor.getLong(MixItContract.Sessions.PROJ_PLANNING.START);
            oldHeader = (String) DateUtils.formatPlanningHeader(oldStart);
        }

        if (header.equalsIgnoreCase(oldHeader)) {
            holder.mHeader.setVisibility(View.GONE);
        } else {
            holder.mHeader.setVisibility(View.VISIBLE);
            holder.mHeader.setText(header);
        }

        cursor.moveToPosition(oldPosition);
    }

    holder.mTalk.setContentPlanning(cursor, mDisplayPastSessionsInGrey);
}

From source file:org.mozilla.gecko.AwesomeBarTabs.java

private void handleBookmarkItemClick(int position) {
    // If we tap on the header view, go up a level
    if (position == 0) {
        mBookmarksAdapter.moveToParentFolder();
        return;// w w w .j  a  v a  2 s .  com
    }

    Cursor cursor = mBookmarksAdapter.getCursor();
    // The header view takes up a spot in the list
    cursor.moveToPosition(position - 1);

    int isFolder = cursor.getInt(cursor.getColumnIndexOrThrow(Bookmarks.IS_FOLDER));
    if (isFolder == 1) {
        // If we're clicking on a folder, update mBookmarksAdapter to move to that folder
        int folderId = cursor.getInt(cursor.getColumnIndexOrThrow(Bookmarks._ID));
        String folderTitle = mBookmarksAdapter.getFolderTitle(position - 1);

        mBookmarksAdapter.moveToChildFolder(folderId, folderTitle);
        return;
    }

    // Otherwise, just open the URL
    String url = cursor.getString(cursor.getColumnIndexOrThrow(URLColumns.URL));
    if (mUrlOpenListener != null)
        mUrlOpenListener.onUrlOpen(url);
}

From source file:com.tuxpan.foregroundcameragalleryplugin.ForegroundCameraLauncher.java

private int getImageOrientation(Uri uri) {
    String[] cols = { MediaStore.Images.Media.ORIENTATION };
    Cursor cursor = cordova.getActivity().getContentResolver().query(uri, cols, null, null, null);
    int rotate = 0;
    if (cursor != null) {
        cursor.moveToPosition(0);
        rotate = cursor.getInt(0);//  ww  w . j av a2 s.  co  m
        cursor.close();
    }
    return rotate;
}

From source file:com.google.android.apps.muzei.gallery.GalleryArtSource.java

private void publishNextArtwork(Uri forceUri) {
    // schedule next
    scheduleNext();/*from  w w  w .j a v a 2s.c  o m*/

    Cursor chosenUris = getContentResolver().query(GalleryContract.ChosenPhotos.CONTENT_URI,
            new String[] { BaseColumns._ID }, null, null, null);
    int numChosenUris = (chosenUris != null) ? chosenUris.getCount() : 0;

    Artwork currentArtwork = getCurrentArtwork();
    String lastToken = (currentArtwork != null) ? currentArtwork.getToken() : null;

    Uri imageUri;
    Random random = new Random();
    if (forceUri != null) {
        imageUri = forceUri;

    } else if (numChosenUris > 0) {
        while (true) {
            chosenUris.moveToPosition(random.nextInt(chosenUris.getCount()));
            imageUri = ContentUris.withAppendedId(GalleryContract.ChosenPhotos.CONTENT_URI,
                    chosenUris.getLong(chosenUris.getColumnIndex(BaseColumns._ID)));
            if (numChosenUris <= 1 || !imageUri.toString().equals(lastToken)) {
                break;
            }
        }
    } else {
        if (ContextCompat.checkSelfPermission(this,
                android.Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
            Log.w(TAG, "Missing read external storage permission.");
            return;
        }
        Cursor cursor = getContentResolver().query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
                new String[] { MediaStore.MediaColumns._ID },
                MediaStore.Images.Media.BUCKET_DISPLAY_NAME + " NOT LIKE '%Screenshots%'", null, null);
        if (cursor == null) {
            Log.w(TAG, "Empty cursor.");
            return;
        }

        int count = cursor.getCount();
        if (count == 0) {
            Log.e(TAG, "No photos in the gallery.");
            return;
        }

        while (true) {
            cursor.moveToPosition(random.nextInt(count));
            imageUri = ContentUris.withAppendedId(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
                    cursor.getLong(0));
            if (!imageUri.toString().equals(lastToken)) {
                break;
            }
        }

        cursor.close();
    }
    if (chosenUris != null) {
        chosenUris.close();
    }

    String token = imageUri.toString();

    // Retrieve metadata for item
    ensureMetadataExists(imageUri);
    String[] projection = { GalleryContract.MetadataCache.COLUMN_NAME_DATETIME,
            GalleryContract.MetadataCache.COLUMN_NAME_LOCATION };
    Cursor metadata = getContentResolver().query(GalleryContract.MetadataCache.CONTENT_URI, projection,
            GalleryContract.MetadataCache.COLUMN_NAME_URI + "=?", new String[] { imageUri.toString() }, null);
    long datetime = 0;
    String location = null;
    if (metadata != null && metadata.moveToFirst()) {
        datetime = metadata
                .getLong(metadata.getColumnIndex(GalleryContract.MetadataCache.COLUMN_NAME_DATETIME));
        location = metadata
                .getString(metadata.getColumnIndex(GalleryContract.MetadataCache.COLUMN_NAME_LOCATION));
    }
    if (metadata != null) {
        metadata.close();
    }

    // Publish the actual artwork
    String title;
    if (datetime > 0) {
        title = DateUtils.formatDateTime(this, datetime,
                DateUtils.FORMAT_SHOW_DATE | DateUtils.FORMAT_SHOW_YEAR | DateUtils.FORMAT_SHOW_WEEKDAY);
    } else {
        title = getString(R.string.gallery_from_gallery);
    }

    String byline;
    if (!TextUtils.isEmpty(location)) {
        byline = location;
    } else {
        byline = getString(R.string.gallery_touch_to_view);
    }

    publishArtwork(new Artwork.Builder().imageUri(imageUri).title(title).byline(byline).token(token)
            .viewIntent(new Intent(Intent.ACTION_VIEW).setDataAndType(imageUri, "image/jpeg")).build());
}

From source file:com.forktech.cmerge.ui.ContactsListFragment.java

@Override
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
    // Gets the Cursor object currently bound to the ListView
    final Cursor cursor = mAdapter.getCursor();

    // Moves to the Cursor row corresponding to the ListView item that was
    // clicked/*  ww  w . jav  a 2  s . c  om*/
    cursor.moveToPosition(position);

    // Creates a contact lookup Uri from contact ID and lookup_key
    final Uri uri = Contacts.getLookupUri(cursor.getLong(ContactsQuery.ID),
            cursor.getString(ContactsQuery.LOOKUP_KEY));

    // Notifies the parent activity that the user selected a contact. In a
    // two-pane layout, the
    // parent activity loads a ContactDetailFragment that displays the
    // details for the selected
    // contact. In a single-pane layout, the parent activity starts a new
    // activity that
    // displays contact details in its own Fragment.
    mOnContactSelectedListener.onContactSelected(uri);

    // If two-pane layout sets the selected item to checked so it remains
    // highlighted. In a
    // single-pane layout a new activity is started so this is not needed.
    if (mIsTwoPaneLayout) {
        getListView().setItemChecked(position, true);
    }
}

From source file:com.visva.voicerecorder.view.fragments.FragmentContact.java

private void deleteThisContact(int selectedPosition) {
    String deleteTitle = getActivity().getString(R.string.delete);
    String contentMsg = getActivity().getString(R.string.are_you_sure_to_delete_contact);
    String cancel = getActivity().getString(R.string.cancel);
    final Cursor cursor = mAdapter.getCursor();
    if (cursor == null)
        return;/*from ww w.  j  av  a  2  s .  c o m*/
    // Moves to the Cursor row corresponding to the ListView item that was clicked
    cursor.moveToPosition(selectedPosition);

    // Creates a contact lookup Uri from contact ID and lookup_key
    final Uri uri = Contacts.getLookupUri(cursor.getLong(ContactsQuery.ID),
            cursor.getString(ContactsQuery.LOOKUP_KEY));

    Dialog dialog = new Dialog(getActivity(), deleteTitle, contentMsg);
    dialog.addCancelButton(cancel, new OnClickListener() {

        @Override
        public void onClick(View v) {
        }
    });
    dialog.setOnAcceptButtonClickListener(new OnClickListener() {

        @Override
        public void onClick(View v) {
            Utils.deleteContact(getActivity(), uri);
        }
    });

    dialog.getButtonAccept();

    dialog.show();
}

From source file:org.dvbviewer.controller.ui.fragments.ChannelList.java

@Override
public void onListItemClick(ListView l, View v, int position, long id) {
    if (mCHannelSelectedListener != null) {
        selectedPosition = position;//from  w  w w .j a v  a 2 s. c  om
        Cursor c = mAdapter.getCursor();
        c.moveToPosition(position);
        Channel chan = cursorToChannel(c);
        ArrayList<Channel> chans = cursorToChannellist(position);
        mCHannelSelectedListener.channelSelected(chans, chan, position);
        getListView().setItemChecked(position, true);
    } else {
        Intent epgPagerIntent = new Intent(getActivity(),
                org.dvbviewer.controller.ui.phone.EpgPagerActivity.class);
        // long[] feedIds = new long[data.getCount()];

        ArrayList<Channel> chans = cursorToChannellist(position);

        epgPagerIntent.putParcelableArrayListExtra(Channel.class.getName(), chans);
        epgPagerIntent.putExtra("position", position);
        startActivity(epgPagerIntent);
        selectedPosition = ListView.INVALID_POSITION;
    }
}