Expose reconnect(), to allow applications to reset tag state. (0d27f999) · Commits · e / os / android_frameworks_base

core/java/android/nfc/technology/BasicTagTechnology.java

+34 −0

Original line number	Diff line number	Diff line
		@@ -164,6 +164,40 @@ import android.util.Log;
		}
		} catch (RemoteException e) {
		attemptDeadServiceRecovery(e);
		throw new IOException("NFC service died");
		}
		}

		/**
		* Re-connect to the {@link Tag} associated with this connection.
		* <p>
		* Reconnecting to a tag can be used to reset the state of the tag itself.
		* This method blocks until the connection is re-established.
		* <p>
		* {@link #close} can be called from another thread to cancel this connection
		* attempt.
		* <p>Requires {@link android.Manifest.permission#NFC} permission.
		* @throws IOException if the target is lost, or connect canceled
		*/
		@Override
		public void reconnect() throws IOException {
		if (!mIsConnected) {
		throw new IllegalStateException("Technology not connected yet");
		} else {
		try {
		int errorCode = mTagService.reconnect(mTag.getServiceHandle());

		if (errorCode != ErrorCodes.SUCCESS) {
		mIsConnected = false;
		mTag.setTechnologyDisconnected();
		throw new IOException();
		}
		} catch (RemoteException e) {
		mIsConnected = false;
		mTag.setTechnologyDisconnected();
		attemptDeadServiceRecovery(e);
		throw new IOException("NFC service died");
		}
		}
		}

+5 −0

Original line number	Diff line number	Diff line
		@@ -81,6 +81,11 @@ public interface TagTechnology {
		*/
		public void connect() throws IOException;

		/**
		* @throws IOException
		*/
		public void reconnect() throws IOException;

		/**
		* Non-blocking. Immediately causes all blocking calls
		* to throw IOException.