Tag myTag = (Tag) intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
Log.i("tag ID",myTag.getId().toString());
这给我一个ID如“[B @ 40521c40”,但这个ID改变每一个阅读.
任何帮助将不胜感激.
谢谢.
解决方法
您仍然需要将字节转换为字符串：
private String bytesToHexString(byte[] src) {
StringBuilder stringBuilder = new StringBuilder("0x");
if (src == null || src.length <= 0) {
return null;
}
char[] buffer = new char[2];
for (int i = 0; i < src.length; i++) {
buffer[0] = Character.forDigit((src[i] >>> 4) & 0x0F,16);
buffer[1] = Character.forDigit(src[i] & 0x0F,16);
System.out.println(buffer);
stringBuilder.append(buffer);
}
return stringBuilder.toString();
}
