additional javadoc for NfcAdapter.ReaderCallback
Change-Id: I3cad8b43d53992bb3d53920abb510456ee72afb5
diff --git a/core/java/android/nfc/NfcAdapter.java b/core/java/android/nfc/NfcAdapter.java
index 486e75a..6743c6c 100644
--- a/core/java/android/nfc/NfcAdapter.java
+++ b/core/java/android/nfc/NfcAdapter.java
@@ -49,6 +49,8 @@
* <h3>Developer Guides</h3>
* <p>For more information about using NFC, read the
* <a href="{@docRoot}guide/topics/nfc/index.html">Near Field Communication</a> developer guide.</p>
+ * <p>To perform basic file sharing between devices, read
+ * <a href="{@docRoot}training/beam-files/index.html">Sharing Files with NFC</a>.
* </div>
*/
public final class NfcAdapter {
@@ -309,8 +311,12 @@
final Context mContext;
/**
- * A callback to be invoked when the system has found a tag in
- * reader mode.
+ * A callback to be invoked when the system finds a tag while the foreground activity is
+ * operating in reader mode.
+ * <p>Register your {@code ReaderCallback} implementation with {@link
+ * NfcAdapter#enableReaderMode} and disable it with {@link
+ * NfcAdapter#disableReaderMode}.
+ * @see NfcAdapter#enableReaderMode
*/
public interface ReaderCallback {
public void onTagDiscovered(Tag tag);
