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Explain the bytes associated with the NFC type 4 tag.

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Change-Id: Ibe12a8cb94032f52e02ef28a423203483b1e096f
This commit is contained in:
Nick Kralevich
2010-10-12 13:23:34 -07:00
parent 62bb2dccdd
commit e0890ff4bc
1 changed files with 65 additions and 48 deletions
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113
apps/Tag/src/com/android/apps/tag/TagDBHelper.java
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@@ -46,55 +46,72 @@ public class TagDBHelper extends SQLiteOpenHelper {
private static final String INSERT = private static final String INSERT =
"INSERT INTO NdefMessage (bytes, date, saved) values (?, ?, ?)"; "INSERT INTO NdefMessage (bytes, date, saved) values (?, ?, ?)";
/**
* A real NFC tag containing an NFC "smart poster". This smart poster
* consists of the text "NFC Forum Type 4 Tag" in english combined with
* the URL "http://www.nxp.com/nfc"
*/
private static final byte[] REAL_NFC_MSG = new byte[] { private static final byte[] REAL_NFC_MSG = new byte[] {
(byte) 0xd1, (byte) 0xd1, // MB=1 ME=1 CF=0 SR=1 IL=0 TNF=001
(byte) 0x02, (byte) 0x02, // Type Length = 2
(byte) 0x2b, (byte) 0x2b, // Payload Length = 43
(byte) 0x53, (byte) 0x53, (byte) 0x70, // Type = {'S', 'p'} (smart poster)
(byte) 0x70,
(byte) 0x91, // begin smart poster payload
(byte) 0x01, // begin smart poster record #1
(byte) 0x17, (byte) 0x91, // MB=1 ME=0 CF=0 SR=1 IL=0 TNF=001
(byte) 0x54, (byte) 0x01, // Type Length = 1
(byte) 0x02, (byte) 0x17, // Payload Length = 23
(byte) 0x65, (byte) 0x54, // Type = {'T'} (Text data)
(byte) 0x6e, (byte) 0x02, // UTF-8 encoding, language code length = 2
(byte) 0x4e, (byte) 0x65, (byte) 0x6e, // language = {'e', 'n'} (english)
(byte) 0x46,
(byte) 0x43, // Begin text data within smart poster record #1
(byte) 0x20, (byte) 0x4e, // 'N'
(byte) 0x46, (byte) 0x46, // 'F'
(byte) 0x6f, (byte) 0x43, // 'C'
(byte) 0x72, (byte) 0x20, // ' '
(byte) 0x75, (byte) 0x46, // 'F'
(byte) 0x6d, (byte) 0x6f, // 'o'
(byte) 0x20, (byte) 0x72, // 'r'
(byte) 0x54, (byte) 0x75, // 'u'
(byte) 0x79, (byte) 0x6d, // 'm'
(byte) 0x70, (byte) 0x20, // ' '
(byte) 0x65, (byte) 0x54, // 'T'
(byte) 0x20, (byte) 0x79, // 'y'
(byte) 0x34, (byte) 0x70, // 'p'
(byte) 0x20, (byte) 0x65, // 'e'
(byte) 0x54, (byte) 0x20, // ' '
(byte) 0x61, (byte) 0x34, // '4'
(byte) 0x67, (byte) 0x20, // ' '
(byte) 0x51, (byte) 0x54, // 'T'
(byte) 0x01, (byte) 0x61, // 'a'
(byte) 0x0c, (byte) 0x67, // 'g'
(byte) 0x55, // end Text data within smart poster record #1
(byte) 0x01, // end smart poster record #1
(byte) 0x6e,
(byte) 0x78, // begin smart poster record #2
(byte) 0x70, (byte) 0x51, // MB=0 ME=1 CF=0 SR=1 IL=0 TNF=001
(byte) 0x2e, (byte) 0x01, // Type Length = 1
(byte) 0x63, (byte) 0x0c, // Payload Length = 12
(byte) 0x6f, (byte) 0x55, // Type = { 'U' } (URI)
(byte) 0x6d,
(byte) 0x2f, // begin URI data within smart poster record #2
(byte) 0x6e, (byte) 0x01, // URI Prefix = 1 ("http://www.")
(byte) 0x66, (byte) 0x6e, // 'n'
(byte) 0x63 (byte) 0x78, // 'x'
(byte) 0x70, // 'p'
(byte) 0x2e, // '.'
(byte) 0x63, // 'c'
(byte) 0x6f, // 'o'
(byte) 0x6d, // 'm'
(byte) 0x2f, // '/'
(byte) 0x6e, // 'n'
(byte) 0x66, // 'f'
(byte) 0x63 // 'c'
// end URI data within smart poster record #2
// end smart poster record #2
// end smart poster payload
}; };
public TagDBHelper(Context context) { public TagDBHelper(Context context) {