如何读取检测机器人NFC标签(NDEF内容)的详细信息? [英] How to read detected NFC tag (NDEF content) details in android?
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问题描述
我要仔细阅读说明书所检测到的NFC标签中的NDEF内容(即标签ID,标签尺寸,标签类型,是标签可写,目标类型和消息类型)。
I want to read NDEF content contained within a detected NFC tag (i.e., Tag id, Tag Size, Tag Type, Is tag Writable, Target Type, and message types).
推荐答案
我假设你正在谈论的标签与NDEF内容?在这种情况下,你可以这样做:
I assume that you are talking about tags with NDEF content? In that case, you can do:
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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