Support for TagLostException (API). (bf34061b) · Commits · e / os / android_frameworks_base

core/java/android/nfc/INfcTag.aidl

+2 −1

Original line number	Original line	Diff line number	Diff line
	@@ -17,6 +17,7 @@
	package android.nfc;		package android.nfc;

	import android.nfc.NdefMessage;		import android.nfc.NdefMessage;
			import android.nfc.TransceiveResult;

	/**		/**
	* @hide		* @hide
	@@ -30,7 +31,7 @@ interface INfcTag
	byte[] getUid(int nativeHandle);		byte[] getUid(int nativeHandle);
	boolean isNdef(int nativeHandle);		boolean isNdef(int nativeHandle);
	boolean isPresent(int nativeHandle);		boolean isPresent(int nativeHandle);
	byte[] transceive(int nativeHandle, in byte[] data, boolean raw);		TransceiveResult transceive(int nativeHandle, in byte[] data, boolean raw);

	int getLastError(int nativeHandle);		int getLastError(int nativeHandle);

core/java/android/nfc/TagLostException.java

0 → 100644

+29 −0

Original line number	Original line	Diff line number	Diff line
			/*
			* Copyright (C) 2011, The Android Open Source Project
			*
			* 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 android.nfc;

			import java.io.IOException;

			public class TagLostException extends IOException {
			public TagLostException() {
			super();
			}

			public TagLostException(String message) {
			super(message);
			}
			}

core/java/android/nfc/TransceiveResult.aidl

0 → 100644

+19 −0

Original line number	Original line	Diff line number	Diff line
			/*
			* Copyright (C) 2011 The Android Open Source Project
			*
			* 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 android.nfc;

			parcelable TransceiveResult;

core/java/android/nfc/TransceiveResult.java

0 → 100644

+90 −0

Original line number	Original line	Diff line number	Diff line
			/*
			* Copyright (C) 2011, The Android Open Source Project
			*
			* 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 android.nfc;

			import android.os.Parcel;
			import android.os.Parcelable;

			/**
			* Class used to pipe transceive result from the NFC service.
			*
			* @hide
			*/
			public final class TransceiveResult implements Parcelable {
			private final boolean mTagLost;
			private final boolean mSuccess;
			private final byte[] mResponseData;

			public TransceiveResult(final boolean success, final boolean tagIsLost,
			final byte[] data) {
			mSuccess = success;
			mTagLost = tagIsLost;
			mResponseData = data;
			}

			public boolean isSuccessful() {
			return mSuccess;
			}

			public boolean isTagLost() {
			return mTagLost;
			}

			public byte[] getResponseData() {
			return mResponseData;
			}

			@Override
			public int describeContents() {
			return 0;
			}

			@Override
			public void writeToParcel(Parcel dest, int flags) {
			dest.writeInt(mSuccess ? 1 : 0);
			dest.writeInt(mTagLost ? 1 : 0);
			if (mSuccess) {
			dest.writeInt(mResponseData.length);
			dest.writeByteArray(mResponseData);
			}
			}

			public static final Parcelable.Creator<TransceiveResult> CREATOR =
			new Parcelable.Creator<TransceiveResult>() {
			@Override
			public TransceiveResult createFromParcel(Parcel in) {
			boolean success = (in.readInt() == 1) ? true : false;
			boolean tagLost = (in.readInt() == 1) ? true : false;
			byte[] responseData;

			if (success) {
			int responseLength = in.readInt();
			responseData = new byte[responseLength];
			in.readByteArray(responseData);
			} else {
			responseData = null;
			}
			return new TransceiveResult(success, tagLost, responseData);
			}

			@Override
			public TransceiveResult[] newArray(int size) {
			return new TransceiveResult[size];
			}
			};

			}

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

+15 −3

Original line number	Original line	Diff line number	Diff line
	@@ -21,8 +21,10 @@ import java.io.IOException;
	import android.nfc.INfcAdapter;		import android.nfc.INfcAdapter;
	import android.nfc.INfcTag;		import android.nfc.INfcTag;
	import android.nfc.NfcAdapter;		import android.nfc.NfcAdapter;
			import android.nfc.TransceiveResult;
	import android.nfc.Tag;		import android.nfc.Tag;
	import android.nfc.ErrorCodes;		import android.nfc.ErrorCodes;
			import android.nfc.TagLostException;
	import android.os.RemoteException;		import android.os.RemoteException;
	import android.util.Log;		import android.util.Log;

	@@ -165,11 +167,21 @@ import android.util.Log;
	checkConnected();		checkConnected();

	try {		try {
	byte[] response = mTagService.transceive(mTag.getServiceHandle(), data, raw);		TransceiveResult result = mTagService.transceive(mTag.getServiceHandle(), data, raw);
	if (response == null) {		if (result == null) {
	throw new IOException("transceive failed");		throw new IOException("transceive failed");
			} else {
			if (result.isSuccessful()) {
			return result.getResponseData();
			} else {
			if (result.isTagLost()) {
			throw new TagLostException("Tag was lost.");
			}
			else {
			throw new IOException("transceive failed");
			}
			}
	}		}
	return response;
	} catch (RemoteException e) {		} catch (RemoteException e) {
	Log.e(TAG, "NFC service dead", e);		Log.e(TAG, "NFC service dead", e);
	throw new IOException("NFC service died");		throw new IOException("NFC service died");