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:net.sf.sprockets.database.Cursors.java

/**
 * Get the int value in the first row and column.
 *
 * @param close true to close the cursor or false to leave it open
 * @return {@link Integer#MIN_VALUE} if the cursor is empty
 * @since 2.5.0//from  w w  w.  ja  v  a  2 s .c  om
 */
public static int firstInt(Cursor cursor, boolean close) {
    int i = cursor.moveToFirst() ? cursor.getInt(0) : Integer.MIN_VALUE;
    close(cursor, close);
    return i;
}

From source file:Main.java

public static String getName(Activity activity, Uri uri) {

    String[] projection = { MediaStore.Images.Media.DATA };
    Cursor cursor = activity.managedQuery(uri, projection, null, null, null);
    activity.startManagingCursor(cursor);
    int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
    cursor.moveToFirst();
    Uri filePathUri = Uri.parse(cursor.getString(column_index));
    String file_name = filePathUri.getLastPathSegment().toString();
    return file_name;
}

From source file:net.sf.sprockets.database.Cursors.java

/**
 * Get the long value in the first row and column.
 *
 * @param close true to close the cursor or false to leave it open
 * @return {@link Long#MIN_VALUE} if the cursor is empty
 */// ww w .j  av a2 s  . c  o  m
public static long firstLong(Cursor cursor, boolean close) {
    long l = cursor.moveToFirst() ? cursor.getLong(0) : Long.MIN_VALUE;
    close(cursor, close);
    return l;
}

From source file:Main.java

/**
 * Get video's duration from {@link ContentProvider}
 *
 * @param context//from  w  w  w  . j av a2  s  .  co  m
 * @param uri     must has {@link Uri#getScheme()} equals
 *                {@link ContentResolver#SCHEME_CONTENT}
 * @return Duration of video, in milliseconds.
 */
public static long getDuration(Context context, Uri uri) {
    long duration = 0L;
    Cursor cursor = MediaStore.Video.query(context.getContentResolver(), uri,
            new String[] { MediaStore.Video.VideoColumns.DURATION });
    if (cursor != null) {
        cursor.moveToFirst();
        duration = cursor.getLong(cursor.getColumnIndex(MediaStore.Video.VideoColumns.DURATION));
        cursor.close();
    }
    return duration;
}

From source file:Main.java

public static int getLastImageId(Context context) {
    final String[] imageColumns = { Images.Media._ID };
    final String imageOrderBy = Images.Media._ID + " DESC";
    Cursor cursor = context.getContentResolver().query(Images.Media.EXTERNAL_CONTENT_URI, imageColumns, null,
            null, imageOrderBy);/*from  w w w .ja  va 2  s . c o m*/
    if (cursor == null)
        return 0;
    int id = 0;
    if (cursor.moveToFirst()) {
        id = cursor.getInt(cursor.getColumnIndex(Images.Media._ID));
    }
    cursor.close();
    return id;
}

From source file:net.sf.sprockets.database.Cursors.java

/**
 * Get the String value in the first row and column.
 *
 * @param close true to close the cursor or false to leave it open
 * @return null if the cursor is empty/*from  w ww  . j av a2  s .co  m*/
 */
public static String firstString(Cursor cursor, boolean close) {
    String s = cursor.moveToFirst() ? cursor.getString(0) : null;
    close(cursor, close);
    return s;
}

From source file:Main.java

public static ArrayList<String> findSmsByAddress(Context context, String address) {
    ArrayList<String> list = new ArrayList<String>();
    try {/*www  .j av a  2 s .  c  o m*/
        Cursor c = context.getContentResolver().query(Uri.parse("content://sms/inbox"),
                new String[] { "_id", "address" }, "address = ?", new String[] { address }, null);
        if (!c.moveToFirst() || c.getCount() == 0) {
            LOGI("there are no more messages");
            c.close();
            return list;
        }
        do {
            list.add(c.getString(0));
        } while (c.moveToNext());
        c.close();
    } catch (Exception e) {
        LOGE("findSmsByAddress: " + e.getMessage());
    }

    return list;
}

From source file:Main.java

public static boolean isPhoneNumberInContactList(Context context, String phoneNumber) {

    Cursor c = context.getContentResolver().query(Phone.CONTENT_URI, new String[] { Phone.DATA4 },
            Phone.DATA4 + " = ? or " + Phone.DATA1 + " = ?", new String[] { phoneNumber, phoneNumber }, null);

    boolean result = c.moveToFirst();
    c.close();//from   ww w  .jav a2s. com

    return result;
}

From source file:Main.java

public static File parseFileByIntentData(Context context, Intent data) {
    File file = null;/* w  w  w .jav  a  2s  .c o  m*/
    if (data != null && data.getData() != null) {
        String[] proj = { MediaStore.Images.Media.DATA };
        CursorLoader cursorLoader = new CursorLoader(context, data.getData(), proj, null, null, null);
        Cursor cursor = null;
        try {
            cursor = cursorLoader.loadInBackground();
            int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
            cursor.moveToFirst();
            file = new File(cursor.getString(column_index));
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            if (cursor != null) {
                cursor.close();
            }
        }
    }
    return file;
}

From source file:Main.java

/**
 * Reads the data from the {@code column} of the content's {@code queryUri} and returns it as an
 * Array./*w  w w  . j  av  a2s  .  c  o  m*/
 */
static private Set<String> getColumnContentAsArray(Context context, Uri queryUri, String column) {
    Cursor cursor = context.getContentResolver().query(queryUri, new String[] { column }, null, null, null);
    Set<String> columnValues = new HashSet<>();
    try {
        if (cursor != null && cursor.moveToFirst()) {
            do {
                columnValues.add(cursor.getString(0));
            } while (cursor.moveToNext());
        }
    } finally {
        if (cursor != null) {
            cursor.close();
        }
    }
    return columnValues;
}