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[英]How to read from detected NFC tag (NDEF message). Android NFC
[英]How to read detected NFC tag (NDEF content) details in android?
我想讀取檢測到的NFC標簽中包含的NDEF內容(即標簽ID,標簽大小,標簽類型,標簽可寫,目標類型和消息類型)。
我假設你在談論帶有NDEF內容的標簽? 在這種情況下,你可以這樣做:
Tag myTag = (Tag) nfcintent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
// get NDEF tag details
Ndef ndefTag = Ndef.get(myTag);
int size = ndefTag.getMaxSize(); // tag size
boolean writable = ndefTag.isWritable(); // is tag writable?
String type = ndefTag.getType(); // tag type
// get NDEF message details
NdefMessage ndefMesg = ndefTag.getCachedNdefMessage();
NdefRecord[] ndefRecords = ndefMesg.getRecords();
int len = ndefRecords.length;
String[] recTypes = new String[len]; // will contain the NDEF record types
for (int i = 0; i < len; i++) {
recTypes[i] = new String(ndefRecords[i].getType());
}
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