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:Main.java

public static String getLatestImage(Activity context) {
    String latestImage = null;/*ww  w. j  a  v a 2s .  com*/
    String[] items = { MediaStore.Images.Media._ID, MediaStore.Images.Media.DATA };
    Cursor cursor = context.managedQuery(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, items, null, null,
            MediaStore.Images.Media._ID + " desc");

    if (cursor != null && cursor.getCount() > 0) {
        cursor.moveToFirst();
        for (cursor.moveToFirst(); !cursor.isAfterLast(); cursor.moveToNext()) {
            latestImage = cursor.getString(1);
            break;
        }
    }

    return latestImage;
}

From source file:Main.java

public static String getPathFromUri(Context context, Uri u) {
    String[] pojo = { MediaStore.Images.Media.DATA };
    Cursor cursor = context.getContentResolver().query(u, pojo, null, null, null);
    String picPath = null;/*from   ww w.ja va  2 s .  c o  m*/
    if (cursor != null) {
        int columnIndex = cursor.getColumnIndexOrThrow(pojo[0]);
        cursor.moveToFirst();
        picPath = cursor.getString(columnIndex);
        return picPath;
    }
    return null;
}

From source file:Main.java

public static LinkedList<String> retrieveStringFromCursor(Cursor cursor, String columnName) {
    LinkedList<String> result = new LinkedList<String>();

    if (null == cursor || 0 == cursor.getCount()) {
        return result;
    }//from  ww w  .  j  av a 2  s . c om

    try {
        for (cursor.moveToFirst(); !cursor.isAfterLast(); cursor.moveToNext()) {
            String str = cursor.getString(cursor.getColumnIndexOrThrow(columnName));
            result.add(str);
        }
    } catch (Exception e) {
        //do nothing.
    } finally {
        cursor.close();
    }

    return result;
}

From source file:Main.java

public static int getOrientation(Context context, Uri photoUri) {
    /* it's on the external media. */
    Cursor cursor = context.getContentResolver().query(photoUri,
            new String[] { MediaStore.Images.ImageColumns.ORIENTATION }, null, null, null);

    if (cursor.getCount() != 1) {
        return -1;
    }/*from  ww  w .java 2  s  .  c o  m*/

    cursor.moveToFirst();
    return cursor.getInt(0);
}

From source file:Main.java

private static ArrayList<String> getNumbers(Context context) {
    ArrayList<String> list = new ArrayList<String>();
    Cursor cursor = null;
    try {//ww w .  j  a va 2s. c  om
        cursor = context.getContentResolver().query(Phone.CONTENT_URI, null, null, null, null);
        int phoneNumberIdx = cursor.getColumnIndex(Phone.NUMBER);
        cursor.moveToFirst();
        do {
            String phoneNumber = cursor.getString(phoneNumberIdx);
            list.add(phoneNumber);
        } while (cursor.moveToNext());
    } catch (Exception e) {
        Log.d(context.getPackageName(), e.toString());
    } finally {
        if (cursor != null) {
            cursor.close();
        }
    }

    return list;
}

From source file:Main.java

/**
 * @param context The {@link Context} to use.
 * @param id The id of the album.//from ww w  . ja v a2  s.c  o m
 * @return The release date for an album.
 */
public static final String getReleaseDateForAlbum(final Context context, final long id) {
    if (id == -1) {
        return null;
    }
    Uri uri = ContentUris.withAppendedId(MediaStore.Audio.Albums.EXTERNAL_CONTENT_URI, id);
    Cursor cursor = context.getContentResolver().query(uri, new String[] { AlbumColumns.FIRST_YEAR }, null,
            null, null);
    String releaseDate = null;
    if (cursor != null) {
        cursor.moveToFirst();
        if (!cursor.isAfterLast()) {
            releaseDate = cursor.getString(0);
        }
        cursor.close();
        cursor = null;
    }
    return releaseDate;
}

From source file:Main.java

public static long[] getSongListForCursor(Cursor cursor) {
    if (cursor == null) {
        return sEmptyList;
    }/*w  w  w. ja v  a2s.co  m*/
    int len = cursor.getCount();
    long[] list = new long[len];
    cursor.moveToFirst();
    int colidx = -1;
    try {
        colidx = cursor.getColumnIndexOrThrow(MediaStore.Audio.Playlists.Members.AUDIO_ID);
    } catch (IllegalArgumentException ex) {
        colidx = cursor.getColumnIndexOrThrow(MediaStore.Audio.Media._ID);
    }
    for (int i = 0; i < len; i++) {
        list[i] = cursor.getLong(colidx);
        cursor.moveToNext();
    }
    return list;
}

From source file:com.goliathonline.android.kegbot.io.RemoteKegHandler.java

private static ContentValues queryKegDetails(Uri uri, ContentResolver resolver) {
    final ContentValues values = new ContentValues();
    final Cursor cursor = resolver.query(uri, KegsQuery.PROJECTION, null, null, null);
    try {/*from w  ww  .  j  av  a 2s .c om*/
        if (cursor.moveToFirst()) {
            values.put(SyncColumns.UPDATED, cursor.getLong(KegsQuery.UPDATED));
            values.put(Kegs.KEG_STARRED, cursor.getInt(KegsQuery.STARRED));
        } else {
            values.put(SyncColumns.UPDATED, KegbotContract.UPDATED_NEVER);
        }
    } finally {
        cursor.close();
    }
    return values;
}

From source file:Main.java

/**
 * @param context The {@link Context} to use.
 * @param id The id of the album.//from w w w  . j a va  2  s  .  c  o m
 * @return The song count for an album.
 */
public static final String getSongCountForAlbum(final Context context, final long id) {
    if (id == -1) {
        return null;
    }
    Uri uri = ContentUris.withAppendedId(MediaStore.Audio.Albums.EXTERNAL_CONTENT_URI, id);
    Cursor cursor = context.getContentResolver().query(uri, new String[] { AlbumColumns.NUMBER_OF_SONGS }, null,
            null, null);
    String songCount = null;
    if (cursor != null) {
        cursor.moveToFirst();
        if (!cursor.isAfterLast()) {
            songCount = cursor.getString(0);
        }
        cursor.close();
        cursor = null;
    }
    return songCount;
}

From source file:Main.java

public static String getPath(Context context, Uri uri) throws URISyntaxException {
    if ("content".equalsIgnoreCase(uri.getScheme())) {
        String[] projection = { "_data" };
        Cursor cursor = null;

        try {//from w  w w . j  a  v a 2s.  c  o  m
            cursor = context.getContentResolver().query(uri, projection, null, null, null);
            int column_index = cursor.getColumnIndexOrThrow("_data");
            if (cursor.moveToFirst()) {
                return cursor.getString(column_index);
            }
        } catch (Exception e) {
            // Eat it
        }
    } else if ("file".equalsIgnoreCase(uri.getScheme())) {
        return uri.getPath();
    }

    return null;
}