Android nfc写卡验证连接错误at android.nfc.tech.BasicTagTechnology.connect(BasicTagTechnology.java:85)
卡是读之前activity的卡
tag = getIntent().getParcelableExtra(ReadingCardActivity.NFC_TAG);
现在在新的activity写卡操作,在验证卡之前连接是出现85问题,原因是什么呢?
写卡操作:
CardUtil.getInstance(CardChargeActivity.this).write(tag,card);
这是写卡的类:
public Boolean write(Tag tag,TemporaryCard card) {
//MifareUltralight mfc2 = MifareUltralight.get(tag);
MifareClassic mfc2 = MifareClassic.get(tag);
byte[] id = tag.getId();
boolean auth = false;
byte[] card_key = new byte[8];
try {
Log.d("mfc-connect0", "mfc-connect0");
mfc2.connect();** 到这里就出现问题了,下面就不执行下去了,连接哪里出错了,是获取不到tag吗?**
Log.d("mfc-connect1", "mfc-connect1");
Make_Key(id,sector,String2Byte(key), card_key);
......
}