Example usage for android.database Cursor moveToFirst

Introduction

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

Prototype

boolean moveToFirst();

Source Link

Document

Move the cursor to the first row.

Usage

From source file:com.deliciousdroid.platform.ContactManager.java

/**
 * Returns the Data id for a sample SyncAdapter contact's profile row, or 0
 * if the sample SyncAdapter user isn't found.
 * /*w ww. j  ava2 s  .c o m*/
 * @param resolver a content resolver
 * @param userId the sample SyncAdapter user ID to lookup
 * @return the profile Data row id, or 0 if not found
 */
private static long lookupProfile(ContentResolver resolver, String userName) {
    long profileId = 0;
    final Cursor c = resolver.query(Data.CONTENT_URI, ProfileQuery.PROJECTION, ProfileQuery.SELECTION,
            new String[] { userName }, null);
    try {
        if (c != null && c.moveToFirst()) {
            profileId = c.getLong(ProfileQuery.COLUMN_ID);
            Log.d("ProfileLookup", Long.toString(c.getLong(ProfileQuery.COLUMN_ID)));
        }
    } finally {
        if (c != null) {
            c.close();
        }
    }
    return profileId;
}

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From source file:cc.softwarefactory.lokki.android.utilities.Utils.java

public static Bitmap openPhoto(Context context, long contactId) {

    Log.e(TAG, "openPhoto");
    if (context == null) {
        return null;
    }/*from  w w  w .ja  va  2 s .c  om*/

    Uri contactUri = ContentUris.withAppendedId(ContactsContract.Contacts.CONTENT_URI, contactId);
    Uri photoUri = Uri.withAppendedPath(contactUri, ContactsContract.Contacts.Photo.CONTENT_DIRECTORY);
    Cursor cursor = context.getContentResolver().query(photoUri,
            new String[] { ContactsContract.Contacts.Photo.PHOTO }, null, null, null);
    if (cursor == null) {
        return null;
    }

    try {
        if (cursor.moveToFirst()) {
            byte[] data = cursor.getBlob(0);
            if (data != null) {
                return BitmapFactory.decodeStream(new ByteArrayInputStream(data));
            }
        }
    } finally {
        cursor.close();
    }
    return null;
}

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From source file:fr.mixit.android.io.JsonHandlerApplyTalks.java

private static boolean isItemUpdated(Uri uri, JSONObject item, ContentResolver resolver) throws JSONException {
    final Cursor cursor = resolver.query(uri, MixItContract.Sessions.PROJ_DETAIL.PROJECTION, null, null, null);
    try {//from  w w w  . j a v  a2  s.c om
        if (!cursor.moveToFirst()) {
            return false;
        }

        String curTitle = cursor.getString(MixItContract.Sessions.PROJ_DETAIL.TITLE);
        if (TextUtils.isEmpty(curTitle)) {
            curTitle = EMPTY;
        }

        String curSummary = cursor.getString(MixItContract.Sessions.PROJ_DETAIL.SUMMARY);
        if (TextUtils.isEmpty(curSummary)) {
            curSummary = EMPTY;
        }

        String curDesc = cursor.getString(MixItContract.Sessions.PROJ_DETAIL.DESC);
        if (TextUtils.isEmpty(curDesc)) {
            curDesc = EMPTY;
        }

        final long curStart = cursor.getLong(MixItContract.Sessions.PROJ_DETAIL.START);
        final long curEnd = cursor.getLong(MixItContract.Sessions.PROJ_DETAIL.END);

        String curRoomId = cursor.getString(MixItContract.Sessions.PROJ_DETAIL.ROOM_ID);
        if (TextUtils.isEmpty(curRoomId)) {
            curRoomId = EMPTY;
        }

        final int curNbVotes = cursor.getInt(MixItContract.Sessions.PROJ_DETAIL.NB_VOTES);
        // final int curMyVote = cursor.getInt(MixItContract.Sessions.PROJ_DETAIL.MY_VOTE);
        // final int curIsFavorite = cursor.getInt(MixItContract.Sessions.PROJ_DETAIL.IS_FAVORITE);

        String curFormat = cursor.getString(MixItContract.Sessions.PROJ_DETAIL.FORMAT);
        if (TextUtils.isEmpty(curFormat)) {
            curFormat = EMPTY;
        }

        String curLevel = cursor.getString(MixItContract.Sessions.PROJ_DETAIL.LEVEL);
        if (TextUtils.isEmpty(curLevel)) {
            curLevel = EMPTY;
        }

        String curLang = cursor.getString(MixItContract.Sessions.PROJ_DETAIL.LANG);
        if (TextUtils.isEmpty(curLang)) {
            curLang = EMPTY;
        }

        final String newTitle = item.has(TAG_TITLE) ? item.getString(TAG_TITLE).trim() : curTitle;
        final String newSummary = item.has(TAG_SUMMARY) ? item.getString(TAG_SUMMARY).trim() : curSummary;
        final String newDesc = item.has(TAG_DESC) ? item.getString(TAG_DESC).trim() : curDesc;
        long newStart = 0;
        if (item.has(TAG_START)) {
            final String start = item.getString(TAG_START);
            newStart = DateUtils.parseISO8601(start);
        } else {
            newStart = curStart;
        }
        long newEnd = 0;
        if (item.has(TAG_END)) {
            final String end = item.getString(TAG_END);
            newEnd = DateUtils.parseISO8601(end);
        } else {
            newEnd = curEnd;
        }
        final String newRoomId = item.has(TAG_ROOM) ? item.getString(TAG_ROOM).trim() : curRoomId;
        final int newNbVotes = item.has(TAG_NB_VOTES) ? item.getInt(TAG_NB_VOTES) : curNbVotes;
        // final int newMyVote = session.has(TAG_MY_VOTE) ? session.getBoolean(TAG_MY_VOTE) ? 1 : 0 : curMyVote;
        // final int newIsFavorite = session.has(TAG_IS_FAVORITE) ? session.getInt(TAG_IS_FAVORITE) : curIsFavorite;
        final String newFormat = item.has(TAG_FORMAT) ? item.getString(TAG_FORMAT).trim() : curFormat;
        final String newLevel = item.has(TAG_LEVEL) ? item.getString(TAG_LEVEL).trim() : curLevel;
        final String newLang = item.has(TAG_LANG) ? item.getString(TAG_LANG).trim() : curLang;

        return !curTitle.equals(newTitle) || //
                !curSummary.equals(newSummary) || //
                !curDesc.equals(newDesc) || //
                curStart != newStart || //
                curEnd != newEnd || //
                !curRoomId.equals(newRoomId) || //
                curNbVotes != newNbVotes || //
                // curMyVote != newMyVote ||
                // curIsFavorite != newIsFavorite || //
                !curFormat.equals(newFormat) || //
                !curLevel.equals(newLevel) || //
                !curLang.equals(newLang);
    } finally {
        if (cursor != null) {
            cursor.close();
        }
    }
}

---

From source file:com.google.samples.apps.topeka.persistence.TopekaDatabaseHelper.java

/**
 * Gets all categories wrapped in a {@link Cursor} positioned at it's first element.
 * <p>There are <b>no quizzes</b> within the categories obtained from this cursor</p>
 *
 * @param context The context this is running in.
 * @return All categories stored in the database.
 *///from  w  w w.j  av  a 2  s.c  om
private static Cursor getCategoryCursor(Context context) {
    SQLiteDatabase readableDatabase = getReadableDatabase(context);
    Cursor data = readableDatabase.query(CategoryTable.NAME, CategoryTable.PROJECTION, null, null, null, null,
            null);
    data.moveToFirst();
    return data;
}

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From source file:com.coinomi.wallet.ExchangeRatesProvider.java

@Nullable
public static ExchangeRate getRate(final Context context, @Nonnull final String coinSymbol,
        @Nonnull String localSymbol) {
    ExchangeRate rate = null;/* w  w  w  .  j av a  2  s  .  c o  m*/

    if (context != null) {
        final Uri uri = contentUriToCrypto(context.getPackageName(), localSymbol, true);
        final Cursor cursor = context.getContentResolver().query(uri, null,
                ExchangeRatesProvider.KEY_CURRENCY_ID, new String[] { coinSymbol }, null);

        if (cursor != null) {
            if (cursor.moveToFirst()) {
                rate = getExchangeRate(cursor);
            }
            cursor.close();
        }
    }

    return rate;
}

---

From source file:at.diamonddogs.util.Utils.java

/**
 * Creates a {@link String} {@link List} from a {@link Cursor}
 *
 * @param cursor the input {@link Cursor}
 * @param name   the name of the colum//from   w w w  .  j  ava2  s.  c  o  m
 * @return a {@link String} {@link List}
 */
public static List<String> convertColumnToList(Cursor cursor, String name) {
    List<String> list = new ArrayList<>();
    if (!checkCursor(cursor)) {
        return null;
    }
    cursor.moveToFirst();
    do {
        list.add(cursor.getString(cursor.getColumnIndex(name)));
    } while (cursor.moveToNext());

    return list;
}

---

From source file:edu.mit.mobile.android.locast.data.TaggableItem.java

/**
 * TODO make this pick the set of tags for a set of content.
 *
 * @param cr a content resolver/*from w w w  .j  a v a2  s .co  m*/
 * @return the top MAX_POPULAR_TAGS most popular tags in the set, with the most popular first.
 */
public static List<String> getPopularTags(ContentResolver cr) {

    final Map<String, Integer> tagPop = new HashMap<String, Integer>();
    final List<String> popTags;

    final Cursor c = cr.query(Tag.CONTENT_URI, Tag.DEFAULT_PROJECTION, null, null, null);
    final int tagColumn = c.getColumnIndex(Tag._NAME);

    for (c.moveToFirst(); !c.isAfterLast(); c.moveToNext()) {
        final String tag = c.getString(tagColumn);

        final Integer count = tagPop.get(tag);
        if (count == null) {
            tagPop.put(tag, 1);
        } else {
            tagPop.put(tag, count + 1);
        }
    }
    c.close();

    popTags = new ArrayList<String>(tagPop.keySet());

    Collections.sort(popTags, new Comparator<String>() {
        public int compare(String object1, String object2) {
            return tagPop.get(object2).compareTo(tagPop.get(object1));
        }

    });
    int limit;
    if (popTags.size() < MAX_POPULAR_TAGS) {
        limit = popTags.size();
    } else {
        limit = MAX_POPULAR_TAGS;
    }
    return popTags.subList(0, limit);
}

---

From source file:at.diamonddogs.util.Utils.java

/**
 * Creates a {@link List} from a {@link Cursor}
 *
 * @param <T>             the generic type of the {@link List}
 * @param cursor          the {@link Cursor} to be converted to a {@link List}
 * @param databaseAdapter the {@link DatabaseAdapter} that will be used for conversion
 * @return a {@link List} containing objects created from the input
 * {@link Cursor}// w  w  w.  java2s. c o  m
 */
public static <T> List<T> convertCursorToList(Cursor cursor, DatabaseAdapter<T> databaseAdapter) {
    List<T> list = new ArrayList<>();
    if (!checkCursor(cursor)) {
        return null;
    }
    cursor.moveToFirst();
    do {
        list.add(databaseAdapter.deserialize(cursor));
    } while (cursor.moveToNext());
    return list;
}

---

From source file:com.hivewallet.androidclient.wallet.AddressBookProvider.java

public static AddressBookEntry lookupEntry(final Context context, @Nonnull final String address) {
    String label = null;/*  w w w.  java 2 s.  c om*/
    String photo = null;

    final Uri uri = contentUri(context.getPackageName()).buildUpon().appendPath(address).build();
    final Cursor cursor = context.getContentResolver().query(uri, null, null, null, null);

    if (cursor != null) {
        if (cursor.moveToFirst()) {
            label = cursor.getString(cursor.getColumnIndexOrThrow(KEY_LABEL));
            photo = cursor.getString(cursor.getColumnIndexOrThrow(KEY_PHOTO));
        }

        cursor.close();
    }

    if (label != null) {
        return new AddressBookEntry(address, label, photo);
    } else {
        return null;
    }
}

---

From source file:de.wikilab.android.friendica01.Max.java

public static String getRealPathFromURI(Context ctx, Uri contentUri) {
    Log.i("FileTypes", "URI = " + contentUri + ", scheme = " + contentUri.getScheme());
    if (contentUri.getScheme().equals("file")) {
        return contentUri.getPath();
    } else {/* w  ww .j  a va 2s . c  om*/
        String[] proj = { MediaStore.Images.Media.DATA };
        Cursor cursor = ctx.getContentResolver().query(contentUri, proj, null, null, null);
        int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
        cursor.moveToFirst();
        String res = cursor.getString(column_index);
        cursor.close();
        return res;
    }
}

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