Export the Contacts as VCF file

Question

I want to export the Phone contacts to External storage area. I didn\'t work with this type of method. Anyone guide me to do this?

Answer 1

private void convertToVcfFile(String contactId, File contactFile) {
    Cursor mCursor = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
            null, ContactsContract.CommonDataKinds.Phone._ID + " = " + contactId,
            null, null);
    if(mCursor != null && mCursor.moveToFirst()) {
        do {
            String mLookupKey = mCursor.getString(mCursor.getColumnIndex(ContactsContract.Contacts.LOOKUP_KEY));
            Uri mUri = Uri.withAppendedPath(ContactsContract.Contacts.CONTENT_VCARD_URI, mLookupKey);
            try {
                AssetFileDescriptor mAssetFileDescriptor = getContentResolver().openAssetFileDescriptor(mUri, "r");
                if (mAssetFileDescriptor != null) {
                    FileInputStream mFileInputStream = mAssetFileDescriptor.createInputStream();
                    byte[] mBuffer = new byte[(int) mAssetFileDescriptor.getDeclaredLength()];
                    mFileInputStream.read(mBuffer);
                    String VCardString = new String(mBuffer);
                    FileOutputStream mFileOutputStream = new FileOutputStream(contactFile, true);
                    mFileOutputStream.write(VCardString.getBytes());
                }
            } catch (Exception e1) {
                e1.printStackTrace();
            }
        } while (mCursor.moveToNext());
        mCursor.close();
    }
}