/* * Copyright (C) 2011 Stanford University MobiSocial Lab * http://mobisocial.stanford.edu * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package mobisocial.nfc; import android.nfc.NdefMessage; /** * A callback issued when an Nfc tag is read. */ public interface NdefHandler { public static final int NDEF_PROPAGATE = 0; public static final int NDEF_CONSUME = 1; /** * Callback issued after an NFC tag is read or an NDEF message is received * from a remote device. This method is executed off the main thread, so be * careful when updating UI elements as a result of this callback. * * @return {@link #NDEF_CONSUME} to indicate this handler has consumed the * given message, or {@link #NDEF_PROPAGATE} to pass on to the next * handler. */ public abstract int handleNdef(NdefMessage[] ndefMessages); }