I want to do is copy the function of the entrance card, ready to read data from the entrance card, and then write the white card, but which data to read?
In the online program is to use the
String data=https://bbs.csdn.net/topics/NfcUtils.readNFCFromTag (intent);
NfcUtils. WriteNFCToTag (this data, intent);
Realize the data writing, so you can use? Still need to read and write other data
Other online and use the
MifareClassic. ReadBlock (readAddress)
MifareClassic. WriteBlock (readAddress dataTemp);
Implementation, speaking, reading and writing, I can put all the block read out, but write some block write fail, and write a successful block, reread, found data did not change, this is what circumstance