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

private static InputStream openPhoto(final Context context, final Uri contactUri) {
    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;
    }//w w w .ja  va2 s . c om
    try {
        if (cursor.moveToFirst()) {
            byte[] data = cursor.getBlob(0);
            if (data != null) {
                return new ByteArrayInputStream(data);
            }
        }
    } finally {
        cursor.close();
    }
    return null;
}

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

private static boolean isItemUpdated(Uri uri, JSONObject item, ContentResolver resolver) throws JSONException {
    final Cursor cursor = resolver.query(uri, MixItContract.Interests.PROJ.PROJECTION, null, null, null);
    try {//from www  . j  av  a 2  s . c  o m
        if (!cursor.moveToFirst()) {
            return false;
        }

        final String curName = cursor.getString(MixItContract.Interests.PROJ.NAME)
                .toLowerCase(Locale.getDefault()).trim();

        final String newName = item.has(TAG_NAME)
                ? item.getString(TAG_NAME).toLowerCase(Locale.getDefault()).trim()
                : curName;

        return !curName.equals(newName);
    } finally {
        if (cursor != null) {
            cursor.close();
        }
    }
}

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

/**
 * Get all long values in the first column.
 *
 * @param close true to close the cursor or false to leave it open
 *///from  www  .jav  a2  s  . c  o m
public static long[] allLongs(Cursor cursor, boolean close) {
    long[] l = EMPTY_LONG_ARRAY;
    if (cursor.moveToFirst()) {
        l = new long[cursor.getCount()];
        do {
            l[cursor.getPosition()] = cursor.getLong(0);
        } while (cursor.moveToNext());
    }
    close(cursor, close);
    return l;
}

From source file:Main.java

/**
 * //from   w  w  w . jav a 2s  .  c  om
 * @param context
 * @param uri
 *            uri of SCHEME_FILE or SCHEME_CONTENT
 * @return image path; uri will be changed to SCHEME_FILE
 */
public static String uriToImagePath(Context context, Uri uri) {
    if (context == null || uri == null) {
        return null;
    }

    String imagePath = null;
    String uriString = uri.toString();
    String uriSchema = uri.getScheme();
    if (uriSchema.equals(ContentResolver.SCHEME_FILE)) {
        imagePath = uriString.substring("file://".length());
    } else {// uriSchema.equals(ContentResolver.SCHEME_CONTENT)
        ContentResolver resolver = context.getContentResolver();
        Cursor cursor = resolver.query(uri, null, null, null, null);
        if (cursor.getCount() == 0) {
            Log.e(TAG, "Uri(" + uri.toString() + ") not found!");
            return null;
        }
        cursor.moveToFirst();
        imagePath = cursor.getString(1);
        // Change the SCHEME_CONTENT uri to the SCHEME_FILE.
        uri = Uri.fromFile(new File(imagePath));
    }
    Log.v(TAG, "Final uri: " + uri.toString());
    return imagePath;
}

From source file:Main.java

private static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {
    Cursor cursor = null;
    final String column = "_data";
    final String[] projection = { column };
    try {/*from w ww  . j  a v a  2  s.c  o m*/
        cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null);
        if (cursor != null && cursor.moveToFirst()) {
            final int column_index = cursor.getColumnIndexOrThrow(column);
            return cursor.getString(column_index);
        }
    } finally {
        if (cursor != null)
            cursor.close();
    }
    return null;
}

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

/**
 * Get all String values in the first column.
 *
 * @param close true to close the cursor or false to leave it open
 *//* ww  w  . j  a  v a  2s.  c om*/
public static String[] allStrings(Cursor cursor, boolean close) {
    String[] s = EMPTY_STRING_ARRAY;
    if (cursor.moveToFirst()) {
        s = new String[cursor.getCount()];
        do {
            s[cursor.getPosition()] = cursor.getString(0);
        } while (cursor.moveToNext());
    }
    close(cursor, close);
    return s;
}

From source file:Main.java

static String getDataColumn(Context context, Uri uri, String selection, String[] selectionArgs) {
    Cursor cursor = null;
    final String column = "_data";
    final String[] projection = { column };
    try {//  ww  w.j  a v a 2 s .c  o  m
        cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs, null);
        if (cursor != null && cursor.moveToFirst()) {
            final int column_index = cursor.getColumnIndexOrThrow(column);
            return cursor.getString(column_index);
        }
    } finally {
        if (cursor != null)
            cursor.close();
    }
    return "";
}

From source file:edu.stanford.mobisocial.dungbeetle.social.FriendRequest.java

/**
 * Returns the contact id for the contact associated with the given uri,
 * or -1 if no such contact exists./*  w  w w.j  av a2  s.co  m*/
 */
public static long getExistingContactId(Context context, Uri friendRequest) {
    String personId = null;
    try {
        String pubKeyStr = friendRequest.getQueryParameter("publicKey");
        PublicKey key = RSACrypto.publicKeyFromString(pubKeyStr);
        personId = Util.makePersonIdForPublicKey(key);
    } catch (Exception e) {
        return -1;
    }
    Uri uri = Uri.parse(DungBeetleContentProvider.CONTENT_URI + "/contacts");
    String[] projection = new String[] { Contact._ID };
    String selection = Contact.PERSON_ID + " = ?";
    String[] selectionArgs = new String[] { personId };
    String sortOrder = null;
    Cursor c = context.getContentResolver().query(uri, projection, selection, selectionArgs, sortOrder);
    if (!c.moveToFirst()) {
        return -1;
    }
    return c.getLong(0);
}

From source file:Main.java

/**
 * Get the contact name from a URI.//from www.j ava  2s .  c o m
 *
 * @param context The context.
 * @param contactUri The contact URI.
 *
 * @return The contact name.
 */
public static String getContactName(final Context context, Uri contactUri) {
    String name = null;
    if (contactUri != null) {
        Cursor cursor = null;
        try {
            cursor = context.getContentResolver().query(contactUri,
                    new String[] { ContactsContract.Contacts.DISPLAY_NAME }, null, null, null);
            if (cursor != null && cursor.moveToFirst()) {
                name = cursor.getString(cursor.getColumnIndexOrThrow(ContactsContract.Contacts.DISPLAY_NAME));
            }
        } finally {
            if (cursor != null) {
                cursor.close();
            }

        }
    }

    return name;
}

From source file:Main.java

public static File uri2File(Activity context, Uri uri) {
    File file;/*  w ww .  j  av  a2 s .c  om*/
    String[] project = { MediaStore.Images.Media.DATA };
    Cursor actualImageCursor = context.getContentResolver().query(uri, project, null, null, null);
    if (actualImageCursor != null) {
        int actual_image_column_index = actualImageCursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
        actualImageCursor.moveToFirst();
        String img_path = actualImageCursor.getString(actual_image_column_index);
        file = new File(img_path);
    } else {
        file = new File(uri.getPath());
    }
    if (actualImageCursor != null)
        actualImageCursor.close();
    return file;
}