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 extractFilenameFromUri(Uri uri, Activity activity) {

    String fileName = null;//from w w  w .j a v  a 2 s.  co m
    if (uri == null) {
        throw new IllegalArgumentException();
    }
    String scheme = uri.getScheme();
    String path = uri.getPath();
    if (path != null && scheme != null && scheme.equals("file")) {
        fileName = path.substring(path.lastIndexOf("/") + 1);
    }

    String[] projection = { MediaStore.Images.ImageColumns.DISPLAY_NAME /* col1 */ };

    Cursor c = activity.managedQuery(uri, projection, null, null, null);
    if (c != null && c.moveToFirst()) {
        fileName = c.getString(0);
    }
    return fileName;
}

From source file:Main.java

public static void DeleteImageFromGalleryBase(final Context context, String fileName) {

    // Set up the projection (we only need the ID)
    String[] projection = { MediaStore.Images.Media._ID };

    // Match on the file path
    String selection = MediaStore.Images.Media.DATA + " = ?";
    String[] selectionArgs = new String[] { fileName };

    // Query for the ID of the media matching the file path
    Uri queryUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
    ContentResolver contentResolver = context.getContentResolver();
    Cursor c = contentResolver.query(queryUri, projection, selection, selectionArgs, null);
    if (c.moveToFirst()) {
        // We found the ID. Deleting the item via the content provider will also remove the file
        long id = c.getLong(c.getColumnIndexOrThrow(MediaStore.Images.Media._ID));
        Uri deleteUri = ContentUris.withAppendedId(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, id);
        contentResolver.delete(deleteUri, null, null);
    } else {// w  ww .j  av  a 2  s. com
        // File not found in media store DB
    }
    c.close();
}

From source file:Main.java

public static ArrayList<String> cursorToArrayList(Cursor cursor) {
    ArrayList<String> list = new ArrayList<>();
    if (cursor == null)
        return list;
    cursor.moveToFirst();

    while (!cursor.isAfterLast()) {
        list.add(cursor.getString(0));/*from  w  ww  . j a v a  2s  . c  o m*/
        cursor.moveToNext();
    }
    return list;
}

From source file:Main.java

public static String getRealPathFromURI(Context context, Uri contentURI) {
    String result = null;/*from   w ww. j a va 2 s  .  co  m*/
    Cursor cursor = context.getContentResolver().query(contentURI, null, null, null, null);
    if (cursor != null) {
        cursor.moveToFirst();
        int idx = cursor.getColumnIndex(MediaStore.Images.ImageColumns.DATA);
        result = cursor.getString(idx);
        cursor.close();
    }
    return result;
}

From source file:Main.java

final static public String GetContactNameByID(long contact_id, ContentResolver resolver) {
    if (resolver != null) {
        final Uri uri = Data.CONTENT_URI;

        final String[] columns = { ContactsContract.CommonDataKinds.StructuredName.FAMILY_NAME,
                ContactsContract.CommonDataKinds.StructuredName.GIVEN_NAME,
                ContactsContract.CommonDataKinds.StructuredName.MIDDLE_NAME
                //,ContactsContract.CommonDataKinds.StructuredName.DISPLAY_NAME
                /*Data._ID,*/
                //Data.CONTACT_ID, 
                //Data.LOOKUP_KEY
        };/*from w  w  w.  j ava 2 s.c  o  m*/
        final String where = Data.CONTACT_ID + "=?" + " AND " + Data.MIMETYPE + "='"
                + StructuredName.CONTENT_ITEM_TYPE + "'";
        final String[] where_arg = { String.valueOf(contact_id) };

        Cursor cur = resolver.query(uri, columns, where, where_arg, null);
        if (cur.moveToFirst()) {
            String result = "";
            final String family_name = cur.getString(0);
            if (family_name != null)
                result += family_name;
            final String given_name = cur.getString(1);
            if (given_name != null)
                result += " " + given_name;
            final String middle_name = cur.getString(2);
            if (middle_name != null)
                result += " " + middle_name;
            //return String.format("%s %s %s",family_name,given_name,middle_name);
            return result;
        } //if(cur.moveToFirst())
    } //if(resolver!=null)
    return null;
}

From source file:Main.java

public static String getFileFromStorage(Context context, Intent data) {
    Uri pickedImage = data.getData();/*  w  w w  . ja v a  2s  . c  o  m*/
    String[] filePath = { MediaStore.Images.Media.DATA };
    String path = "";
    Cursor cursor = context.getContentResolver().query(pickedImage, filePath, null, null, null);
    if (cursor != null) {
        cursor.moveToFirst();
        path = cursor.getString(cursor.getColumnIndex(filePath[0]));
        cursor.close();
    }
    return path;
}

From source file:Main.java

public static int getContactIdFromPhoneNumber(final Context context, final String number) {
    final Uri uri = Uri.withAppendedPath(PhoneLookup.CONTENT_FILTER_URI, Uri.encode(number));
    final String[] projection = { PhoneLookup._ID };
    final Cursor c = context.getContentResolver().query(uri, projection, null, null, null);
    if (c.getCount() > 0) {
        c.moveToFirst();
        return c.getInt(0);
    } else {//from w w w.  ja v  a 2  s . c o  m
        return -1;
    }
}

From source file:Main.java

public static String[] getTrailers(Cursor data) {
    List<String> lista = new ArrayList<String>();
    lista.add("Select Trailer");

    data.moveToFirst();
    if (!data.getString(COL_TRAILER_KEY).equalsIgnoreCase("No Trailer Available")) {
        //loop through cursor to get all trailers
        for (int i = 1; i < data.getCount() + 1; i++) {
            if (!lista.contains(data.getString(COL_TRAILER_KEY))) {
                lista.add(data.getString(COL_TRAILER_KEY));
                data.moveToNext();//from   www.j a  v  a2  s.  c o  m
            } else {
                data.moveToNext();
            }
        }
    }

    String[] ltrailer;
    if (lista.size() < 1) {
        ltrailer = new String[1];
        ltrailer[0] = "No Trailer Available";
    } else {
        ltrailer = lista.toArray(new String[lista.size()]);
    }

    return ltrailer;
}

From source file:Main.java

/**
 * Calculates the amount of rotation needed for the image to look upright.
 * /*from   w ww .  j  av  a2  s.c  o  m*/
 * @param context
 *            the application's context
 * @param uri
 *            the Uri pointing to the file
 * @return the needed rotation as a <code>float</code>
 */
private static float rotationForImage(Context context, Uri uri) {
    if ("content".equals(uri.getScheme())) {
        String[] projection = { Images.ImageColumns.ORIENTATION };
        Cursor c = context.getContentResolver().query(uri, projection, null, null, null);
        if (c.moveToFirst()) {
            return c.getInt(0);
        }
    } else if ("file".equals(uri.getScheme())) {
        try {
            ExifInterface exif = new ExifInterface(uri.getPath());
            int rotation = (int) exifOrientationToDegrees(
                    exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, ExifInterface.ORIENTATION_NORMAL));
            return rotation;
        } catch (IOException e) {
            Log.e(TAG, "Error checking exif", e);
        }
    }
    return 0f;
}

From source file:Main.java

/**
 * Handles pre V19 uri's//  www .ja  va  2  s  .c o m
 * @param context
 * @param contentUri
 * @return
 */
private static String getPathForPreV19(Context context, Uri contentUri) {
    String res = null;

    String[] proj = { MediaStore.Images.Media.DATA };
    Cursor cursor = context.getContentResolver().query(contentUri, proj, null, null, null);
    if (cursor != null) {
        if (cursor.moveToFirst()) {
            int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
            res = cursor.getString(column_index);
        }
        cursor.close();
    }

    return res;
}