create NdefMessage - Android Network

Android examples for Network:NFC Message

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Description

create NdefMessage

Demo Code


//package com.java2s;
import java.nio.charset.Charset;
import java.util.Locale;
import android.nfc.NdefMessage;
import android.nfc.NdefRecord;

public class Main {
    public static NdefMessage createMessage(String text, boolean encode) {
        NdefRecord[] records = new NdefRecord[1];
        records[0] = createRecord(text, Locale.FRENCH, encode);
        return new NdefMessage(records);
    }/*from w  w w . j a va  2s . com*/

    public static NdefRecord createRecord(String text, Locale locale,
            boolean encode) {
        byte[] langBytes = locale.getLanguage().getBytes(
                Charset.forName("US-ASCII"));
        Charset utfEncoding = encode ? Charset.forName("UTF-8") : Charset
                .forName("UTF-16");
        byte[] textBytes = text.getBytes(utfEncoding);
        int utfBit = encode ? 0 : (1 << 7);
        char status = (char) (utfBit + langBytes.length);
        byte[] data = new byte[langBytes.length + textBytes.length + 1];
        data[0] = (byte) status;
        System.arraycopy(langBytes, 0, data, 1, langBytes.length);
        System.arraycopy(textBytes, 0, data, 1 + langBytes.length,
                textBytes.length);
        return new NdefRecord(NdefRecord.TNF_WELL_KNOWN,
                NdefRecord.RTD_TEXT, new byte[0], data);
    }
}

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