How to find out whether an NFC tag is still in range of an Android now?

Question

As I know when an Android phone gets an NFC tag touched, it will send an event (NDEF_DISCOVERED intent), but Android doesn\'t seem to care whether this tag is staying in pla

Answer 1

There is a function that checks to see if the card is still connected called isConnected(). Can be used like this:

try {
    ndef.connect();
    while(ndef.isConnected()){

    //Your code here

    }
} catch (IOException e) {
    //Error
}