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@@ -0,0 +1,435 @@
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+package com.wdkl.ncs.android.component.nursehome.util;
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+
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+import android.app.Activity;
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+import android.app.PendingIntent;
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+import android.content.Intent;
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+import android.content.IntentFilter;
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+import android.nfc.FormatException;
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+import android.nfc.NdefMessage;
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+import android.nfc.NdefRecord;
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+import android.nfc.NfcAdapter;
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+import android.nfc.Tag;
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+import android.nfc.tech.MifareClassic;
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+import android.nfc.tech.Ndef;
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+import android.util.Log;
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+
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+import com.wdkl.ncs.android.component.nursehome.activity.NurseHomeActivity;
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+import com.wdkl.ncs.android.lib.base.BaseApplication;
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+
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+import java.io.IOException;
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+import java.nio.charset.Charset;
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+import java.util.ArrayList;
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+import java.util.List;
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+import java.util.Objects;
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+
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+/**
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+ * NFC 相关的工具类
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+ * SDK 最低版本为 14
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+ * 参考 https://github.com/albert-lii/SUtils/blob/master/sutils/src/main/java/com/liyi/sutils/utils/NfcUtil.java
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+ * @author xzy
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+ */
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+
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+@SuppressWarnings("all")
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+public class NfcUtils {
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+ private static final String TAG = "NfcUtils";
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+ /* NFC 适配器 */
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+ private NfcAdapter mAdapter;
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+ PendingIntent pIntent;
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+ /* NDEF 标签读取监听 */
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+ private OnReadFromNdefListener mReadNdefListener;
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+ /* NDEF 标签写入监听 */
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+ private OnWriteToNdefListener mWriteNdefListener;
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+ /* NDEF 标签删除监听 */
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+ private OnDeleteNdefListener mDeleteNdefListener;
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+
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+ public static NfcUtils getInstance() {
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+ return NfcUtilsHolder.INSTANCE;
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+ }
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+
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+ private static final class NfcUtilsHolder {
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+ private static final NfcUtils INSTANCE = new NfcUtils();
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+ }
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+
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+ private NfcUtils() {
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+ mAdapter = NfcAdapter.getDefaultAdapter(BaseApplication.appContext);
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+ pIntent = PendingIntent.getBroadcast(BaseApplication.appContext, 0,
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+ //在Manifest里或者这里设置当前activity启动模式，否则每次向阳NFC事件，activity会重复创建
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+ // 当然也要按照具体情况来，你设置成singleTask也不是不行，
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+ new Intent("NFC_DISCOVERYED"),
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+ PendingIntent.FLAG_UPDATE_CURRENT);
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+ }
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+
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+ /**
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+ * 判断设备是否支持 NFC 功能
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+ *
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+ * @return {@code true}: 支持<br>{@code false}: 不支持
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+ */
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+ public boolean isSupportNfc() {
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+ return mAdapter != null;
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+ }
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+
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+ /**
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+ * 是否已经打开 NFC 功能
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+ *
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+ * @return {@code true}: 已经打开<br>{@code false}: 未打开
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+ */
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+ public boolean isNfcEnabled() {
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+ if (mAdapter != null && mAdapter.isEnabled()) {
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+ return true;
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+ }
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+ return false;
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+ }
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+
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+ /**
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+ * 判断是否有 NFC 相关的 intent
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+ * <p>
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+ * <p>NDEF_DISCOVERED: 只过滤固定格式的 NDEF 数据，例如：纯文本、指定协议（http、ftp、smb等）的URI等</p>
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+ * <p>
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+ * <p>TECH_DISCOVERED: 当 ACTION_NDEF_DISCOVERED 指定的过滤机制无法匹配 Tag 时，就会使用这种过滤机制进行
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+ * 匹配，
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+ * <p>这种过滤机制并不是通过 Tag 中的数据格式进行匹配的，而是根据 Tag 支持的数据存储格式进行匹配，
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+ * <p>因此这种过滤机制的范围更广</p>
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+ * <p>
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+ * <p>TAG_DISCOVERED: 当前面两种过滤机制都匹配失败后，系统就会利用这种过滤机制来处理，
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+ * <p>这种过滤机制用来处理未识别的 Tag（数据格式不对，而且 Tag 支持的格式也不匹配）</p>
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+ *
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+ * @param intent
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+ */
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+ public boolean isHasNfcIntent(Intent intent) {
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+ boolean isHasIntent = false;
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+ // NFC 的三重过滤机制
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+ if (NfcAdapter.ACTION_NDEF_DISCOVERED.equals(intent.getAction())
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+ || NfcAdapter.ACTION_TECH_DISCOVERED.equals(intent.getAction())
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+ || NfcAdapter.ACTION_TAG_DISCOVERED.equals(intent.getAction())) {
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+ isHasIntent = true;
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+ }
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+ return isHasIntent;
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+ }
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+
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+ /**
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+ * 获取 NFC 的适配器
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+ *
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+ * @return NfcAdapter
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+ */
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+ public NfcAdapter getNfcAdapter() {
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+ if (mAdapter == null) {
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+ mAdapter = NfcAdapter.getDefaultAdapter(BaseApplication.appContext);
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+ }
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+ return mAdapter;
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+ }
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+
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+ public void NfcOnResume(Activity activity){
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+ if (mAdapter == null) {
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+ mAdapter = getNfcAdapter();
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+ }
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+
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+ //添加intent-filter
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+ IntentFilter ndef = new IntentFilter(NfcAdapter.ACTION_NDEF_DISCOVERED);
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+ IntentFilter tag = new IntentFilter(NfcAdapter.ACTION_TAG_DISCOVERED);
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+ IntentFilter tech = new IntentFilter(NfcAdapter.ACTION_TECH_DISCOVERED);
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+ IntentFilter[] filters = new IntentFilter[]{ndef, tag, tech};
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+ //添加 ACTION_TECH_DISCOVERED 情况下所能读取的NFC格式，这里列的比较全，实际我这里是没有用到的，因为测试的卡是NDEF的
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+ String[][] techList = new String[][]{
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+ new String[]{
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+ "android.nfc.tech.Ndef",
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+ "android.nfc.tech.NfcA",
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+ "android.nfc.tech.NfcB",
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+ "android.nfc.tech.NfcF",
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+ "android.nfc.tech.NfcV",
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+ "android.nfc.tech.NdefFormatable",
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+ "android.nfc.tech.MifareClassic",
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+ "android.nfc.tech.MifareUltralight",
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+ "android.nfc.tech.NfcBarcode"
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+ }
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+ };
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+
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+ if (mAdapter != null) {
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+ mAdapter.enableForegroundDispatch(activity, pIntent, filters, techList);
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+ }
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+ }
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+
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+ public String readMifareClassic(Intent intent) {
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+
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+ String info = "";
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+ List<byte[]> list = new ArrayList<>();
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+ boolean auth = false;
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+ //读取TAG
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+ Tag tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
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+ MifareClassic mfc = MifareClassic.get(tag);
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+ if (tag != null){
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+ try {
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+ mfc.connect();
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+ if (mfc.isConnected()) {
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+ int sectorCount = mfc.getSectorCount();//获取TAG中包含的扇区数
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+ if(sectorCount==16){
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+ int bindex = mfc.sectorToBlock(1);
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+ auth = mfc.authenticateSectorWithKeyA(1,
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+ MifareClassic.KEY_DEFAULT);
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+ if(auth){
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+ byte[] data = mfc.readBlock(bindex+1);
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+ info = new String(data, Charset.forName("utf-8"));
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+ Log.e(TAG, "读取写入的数据: "+info );
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+ if (mReadNdefListener != null) {
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+ mReadNdefListener.Readsuccessfully(info);
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+ }
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+ return info;
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+
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+ }
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+ }
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+ }
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+ } catch (Exception e) {
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+ Log.e(TAG, e.getMessage());
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+ if (mReadNdefListener != null) {
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+ mReadNdefListener.readFail();
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+ }
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+ } finally {
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+ try {
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+ mfc.close();
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+ } catch (IOException e) {
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+ Log.e(TAG, e.getMessage());
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+ if (mReadNdefListener != null) {
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+ mReadNdefListener.readFail();
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+ }
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+ }
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+ }
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+ }else {
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+ if (mReadNdefListener != null) {
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+ mReadNdefListener.readFail();
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+ }
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+ }
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+
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+ return null;
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+ }
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+
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+ /**
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+ * 从 NDEF 标签中读取数据
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+ *
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+ * @param tag
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+ * @return 读取到的标签信息
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+ */
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+ public String readFromNdef(Tag tag) {
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+ try {
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+ if (tag != null) {
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+ // 解析 Tag 获取到 NDEF 实例
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+ Ndef ndef = Ndef.get(tag);
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+ // 打开连接
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+ ndef.connect();
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+ // 获取 NDEF 消息
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+ NdefMessage message = null;
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+ try {
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+ message = ndef.getNdefMessage();
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+ } catch (FormatException e) {
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+ e.printStackTrace();
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+ }
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+ // 将消息转换成字节数组
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+ byte[] data = Objects.requireNonNull(message).toByteArray();
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+ // 将字节数组转换成字符串
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+ String str = new String(data, Charset.forName("UTF-8"));
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+ // 关闭连接
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+ ndef.close();
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+ return str;
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+ } else {
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+// if (mReadNdefListener != null) {
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+// mReadNdefListener.unConnect();
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+// }
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+ }
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+ } catch (IOException e) {
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+ if (mReadNdefListener != null) {
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+ mReadNdefListener.readFail();
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+ }
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+ e.printStackTrace();
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+ }
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+ return null;
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+ }
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+
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+ /**
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+ * 向 NDEF 标签中写入信息
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+ *
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+ * @param tag
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+ * @param ndefRecords
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+ */
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+ public void writeToNdef(Tag tag, NdefRecord[] ndefRecords) {
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+ if (tag == null) {
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+ return;
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+ }
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+ NdefMessage ndefMessage = new NdefMessage(ndefRecords);
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+ // 获得写入大小
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+ int size = ndefMessage.toByteArray().length;
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+ // 判断是否是 NDEF 标签
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+ try {
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+ // 解析 TAG 获取到 NDEF 实例
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+ Ndef ndef = Ndef.get(tag);
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+ if (ndef != null) {
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+ // 开始连接
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+ ndef.connect();
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+ // 判断是否可写
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+ if (!ndef.isWritable()) {
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+ if (mWriteNdefListener != null) {
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+ mWriteNdefListener.unWritable();
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+ }
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+ return;
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+ }
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+ // 判断大小
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+ if (ndef.getMaxSize() < size) {
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+ if (mWriteNdefListener != null) {
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+ mWriteNdefListener.sizeOver(ndef);
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+ }
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+ return;
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+ }
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+ // 写入NDEF信息
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+ ndef.writeNdefMessage(ndefMessage);
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+ // 关闭连接
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+ ndef.close();
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+ } else {
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+// if (mWriteNdefListener != null) {
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+// mWriteNdefListener.;
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+// }
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+ }
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+ } catch (IOException e) {
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+ if (mWriteNdefListener != null) {
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+ mWriteNdefListener.writeFail();
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+ }
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+ e.printStackTrace();
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+ } catch (FormatException e) {
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+ if (mWriteNdefListener != null) {
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+ mWriteNdefListener.writeFail();
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+ }
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+ e.printStackTrace();
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+ }
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+ }
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+
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+ /**
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+ * 删除 NDEF 标签中的信息
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+ *
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+ * @param tag
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+ */
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+ public void deleteNdef(Tag tag) {
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+ try {
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+ if (tag != null) {
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+ // 新建一个里面无任何信息的 NdefRecord 实例
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+ NdefRecord nullNdefRecord = new NdefRecord(NdefRecord.TNF_MIME_MEDIA,
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+ new byte[]{}, new byte[]{}, new byte[]{});
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+ NdefRecord[] records = {nullNdefRecord};
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+ NdefMessage message = new NdefMessage(records);
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+ // 解析 TAG 获取到 NDEF 实例
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+ Ndef ndef = Ndef.get(tag);
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+ // 打开连接
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+ ndef.connect();
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+ // 写入信息
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+ ndef.writeNdefMessage(message);
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+ // 关闭连接
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+ ndef.close();
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+ } else {
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+ if (mDeleteNdefListener != null) {
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+ mDeleteNdefListener.unConnect();
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+ }
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+ }
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+ } catch (IOException e) {
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+ if (mDeleteNdefListener != null) {
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+ mDeleteNdefListener.deleteFail();
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+ }
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+ e.printStackTrace();
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+ } catch (FormatException e) {
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+ if (mDeleteNdefListener != null) {
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+ mDeleteNdefListener.deleteFail();
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+ }
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+ e.printStackTrace();
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+ }
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+ }
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+
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+ /**
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+ * 设置 NDEF 标签读取监听
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+ *
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+ * @param listener
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+ */
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+ public void setReadNdefListener(OnReadFromNdefListener listener) {
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+ this.mReadNdefListener = listener;
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+ }
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+
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+ /**
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+ * 设置 NDEF 标签写入监听
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+ *
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+ * @param listener
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+ */
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+ public void setWriteNdefListener(OnWriteToNdefListener listener) {
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+ this.mWriteNdefListener = listener;
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+ }
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+
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+ /**
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+ * 设置 NDEF 标签信息删除监听
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+ *
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+ * @param listener
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+ */
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+ public void setDeleteNdefListener(OnDeleteNdefListener listener) {
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+ this.mDeleteNdefListener = listener;
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+ }
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+
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+ /**
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+ * 清除信息
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+ */
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+ public void clear(Activity activity) {
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+ setReadNdefListener(null);
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+ setWriteNdefListener(null);
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+ setDeleteNdefListener(null);
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+ if (mAdapter != null) {
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+ mAdapter.disableForegroundDispatch(activity);
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+ }
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+ }
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+
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+ /**
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+ * 从 NDEF 标签中读取数据监听
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+ */
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+ public interface OnReadFromNdefListener {
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+ /**
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+ * 读取成功
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+ */
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+ void Readsuccessfully(String id);
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+ /**
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+ * 读取失败
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+ */
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+ void readFail();
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+ }
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+
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+ /**
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+ * 向 NDEF 标签中写入数据监听
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+ */
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+ public interface OnWriteToNdefListener {
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+
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+ /**
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+ * 没有连接成功
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+ */
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+ void Connect();
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+
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+ /**
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+ * 当前设备不支持写入
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+ */
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+ void unWritable();
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+
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+ /**
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+ * 要写入的信息容量大于标签支持的最大容量
|
|
|
+ *
|
|
|
+ * @param ndef
|
|
|
+ */
|
|
|
+ void sizeOver(Ndef ndef);
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 写入失败
|
|
|
+ */
|
|
|
+ void writeFail();
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 删除 NDEF 标签信息监听
|
|
|
+ */
|
|
|
+ public interface OnDeleteNdefListener {
|
|
|
+ /**
|
|
|
+ * 没有连接成功
|
|
|
+ */
|
|
|
+ void unConnect();
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 删除失败
|
|
|
+ */
|
|
|
+ void deleteFail();
|
|
|
+ }
|
|
|
+}
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weizhengliang