Added in API level 19
ReaderCallback
interface ReaderCallback
| android.nfc.NfcAdapter.ReaderCallback |
A callback to be invoked when the system finds a tag while the foreground activity is operating in reader mode.
Register your ReaderCallback implementation with NfcAdapter.enableReaderMode and disable it with NfcAdapter.disableReaderMode.
Summary
| Public methods | |
|---|---|
| abstract Unit |
onTagDiscovered(tag: Tag!) |
| open Unit |
Called when the previously discovered tag is lost. |
Public methods
onTagLost
Added in API level 37
open fun onTagLost(tag: Tag): Unit
Called when the previously discovered tag is lost.
| Parameters | |
|---|---|
tag |
Tag: This value cannot be null. |