package com.dayu.recharge.tools;
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import android.content.Intent;
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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 java.io.IOException;
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import java.util.ArrayList;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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/**
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* @author zx
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* @date 2018/4/23 14:31
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* email 1058083107@qq.com
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* description nfc读取工具类
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*/
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public class NfcReadHelper extends BaseNFCHelper {
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private Tag tag;
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// private NFCCallback callback;
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private static NfcReadHelper helper;
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public NfcReadHelper(Intent intent) {
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this.tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
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}
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/**
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* 单例初始化
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*
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* @param intent
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* @return
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*/
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public static NfcReadHelper getInstence(Intent intent) {
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if (helper == null) {
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helper = new NfcReadHelper(intent);
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}
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return helper;
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}
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/**
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* 设置NFC卡的密码
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*
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* @param str
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* @return
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*/
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// public NfcReadHelper setPassword(String str) {
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//
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// if (null != str && (str.length() <= 6)) {
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// for (int i = 0; i < str.length(); i++) {
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// bytes[i] = (byte) str.charAt(i);
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// }
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// }
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// return helper;
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// }
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/**
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* 读取NFC卡的全部信息
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*
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* @param callback
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*/
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public void getAllData(final NFCCallListback callback) {
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new Thread(new Runnable() {
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@Override
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public void run() {
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Map<String, List<byte[]>> map = new HashMap<>();
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MifareClassic mfc = MifareClassic.get(tag);
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if (null != mfc) {
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try {
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//链接NFC
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mfc.connect();
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//获取扇区数量
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int count = mfc.getSectorCount();
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//存储空间
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int size = mfc.getSize();
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//用于判断时候有内容读取出来
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boolean flag = false;
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for (int i = 0; i < count; i++) {
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List<byte[]> list = new ArrayList<>();
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//验证扇区密码，否则会报错（链接失败错误）
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boolean isOpen = mfc.authenticateSectorWithKeyA(i, bytes);
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if (isOpen) {
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//获取扇区里面块的数量
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int bCount = mfc.getBlockCountInSector(i);
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//获取扇区第一个块对应芯片存储器的位置（我是这样理解的，因为第0扇区的这个值是4而不是0）
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int bIndex = mfc.sectorToBlock(i);
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//String data1 = "";
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for (int j = 0; j < bCount; j++) {
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//读取数据
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byte[] data = null;
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try {
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data = mfc.readBlock(bIndex);
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bIndex++;
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list.add(data);
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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flag = true;
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}
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map.put(i + "", list);
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}
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if (flag) {
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callback.callBack(map);
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} else {
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callback.error();
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}
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} catch (Exception e) {
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callback.error();
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e.printStackTrace();
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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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e.printStackTrace();
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}
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}
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}
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}
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}).start();
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}
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/**
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* 读取NFC卡的特定扇区信息
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*
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* @param a 扇区
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* @param b 块
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* @param callback
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*/
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public void getData(final int a, final int b, final NFCCallByteback callback) {
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new Thread(new Runnable() {
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@Override
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public void run() {
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Map<String, List<String>> map = new HashMap<>();
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MifareClassic mfc = MifareClassic.get(tag);
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if (null != mfc) {
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try {
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mfc.connect();
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int count = mfc.getSectorCount();
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if (a < 0 || a > count - 1) {
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callback.error();
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return;
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}
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int bCount = mfc.getBlockCountInSector(a);
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if (b < 0 || b > bCount - 1) {
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callback.error();
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return;
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}
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int type = mfc.getType();//获取TAG的类型
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String typeS = "";
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switch (type) {
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case MifareClassic.TYPE_CLASSIC:
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typeS = "TYPE_CLASSIC";
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break;
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case MifareClassic.TYPE_PLUS:
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typeS = "TYPE_PLUS";
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break;
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case MifareClassic.TYPE_PRO:
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typeS = "TYPE_PRO";
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break;
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case MifareClassic.TYPE_UNKNOWN:
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typeS = "TYPE_UNKNOWN";
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break;
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}
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boolean isOpen = mfc.authenticateSectorWithKeyA(a, bytes);
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if (isOpen) {
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int bIndex = mfc.sectorToBlock(a);
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byte[] data = mfc.readBlock(bIndex + b);
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callback.callBack(data);
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} else {
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callback.error();
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}
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} catch (Exception e) {
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callback.error();
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e.printStackTrace();
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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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e.printStackTrace();
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}
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}
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}
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}
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}).start();
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}
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/**
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* 返回监听类
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*/
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public interface NFCCallListback {
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/**
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* 返回读取nfc卡的全部信息
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*
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* @param data 前面代表扇区 四个块的数据用#号隔开
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*/
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void callBack(Map<String, List<byte[]>> data);
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void error();
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}
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public interface NFCCallByteback {
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/**
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* 返回读取nfc卡的全部信息
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*
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* @param data 前面代表扇区 四个块的数据用#号隔开
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*/
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void callBack(byte[] data);
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void error();
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}
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}
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