uniapp app nfc读取IC卡数据

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uniapp app nfc读取IC卡数据

读取芯片卡ID

/** desc：封装NFC功能，实现安卓设备对NFC标签读取卡号，支持android5.0及以上版本，仅支持 android 平台 */
// 包路径
const package_NdefRecord = 'android.nfc.NdefRecord';
const package_NdefMessage = 'android.nfc.NdefMessage';
const package_TECH_DISCOVERED = 'android.nfc.action.TECH_DISCOVERED';
const package_Intent = 'android.content.Intent';
const package_Activity = 'android.app.Activity';
const package_PendingIntent = 'android.app.PendingIntent';
const package_IntentFilter = 'android.content.IntentFilter';
const package_NfcAdapter = 'android.nfc.NfcAdapter';
const package_Ndef = 'android.nfc.tech.Ndef';
const package_NdefFormatable = 'android.nfc.tech.NdefFormatable';
const package_Parcelable = 'android.os.Parcelable';
const package_String = 'java.lang.String';let NfcAdapter;
let NdefRecord;
let NdefMessage;
let techListsArray = [['android.nfc.tech.IsoDep'],['android.nfc.tech.NfcA'],['android.nfc.tech.NfcB'],['android.nfc.tech.NfcF'],['android.nfc.tech.Nfcf'],['android.nfc.tech.NfcV'],['android.nfc.tech.NdefFormatable'],['android.nfc.tech.MifareClassi'],['android.nfc.tech.MifareUltralight']
];
let readyRead = false;export default {nfcGetId: function(obj) {let that = this;try {let main = plus.android.runtimeMainActivity();let Intent = plus.android.importClass('android.content.Intent');let Activity = plus.android.importClass('android.app.Activity');let PendingIntent = plus.android.importClass('android.app.PendingIntent');let IntentFilter = plus.android.importClass('android.content.IntentFilter');NfcAdapter = plus.android.importClass('android.nfc.NfcAdapter');let nfcAdapter = NfcAdapter.getDefaultAdapter(main);if (nfcAdapter == null) {uni.showToast({title: '设备不支持NFC！',icon: 'none'})return;}if (!nfcAdapter.isEnabled()) {uni.showToast({title: '请在系统设置中先启用NFC功能！',icon: 'none'});return;} let intent = new Intent(main, main.getClass());intent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);let pendingIntent = PendingIntent.getActivity(main, 0, intent, 0);let ndef = new IntentFilter("android.nfc.action.TECH_DISCOVERED");ndef.addDataType("*/*");let intentFiltersArray = [ndef];plus.globalEvent.addEventListener('newintent', function() {console.log('newintent running');// 监听 NFCsetTimeout(function() {NdefRecord = plus.android.importClass("android.nfc.NdefRecord");NdefMessage = plus.android.importClass("android.nfc.NdefMessage");let main = plus.android.runtimeMainActivity();let intent = main.getIntent();//let that = this;console.log("action type:" + intent.getAction());if (package_TECH_DISCOVERED == intent.getAction()) {if (readyRead) {uni.showToast({title: '请勿移开标签正在读取数据',icon: 'none'});//let that = this;// NFC idlet bytesId = intent.getByteArrayExtra(NfcAdapter.EXTRA_ID);let nfc_id = that.byteArrayToHexString(bytesId);console.log('nfc_id:'+ nfc_id);obj.success(nfc_id);readyRead = false;}}	}, 1000);});plus.globalEvent.addEventListener('pause', function(e) {console.log('pause running');if (nfcAdapter) {//关闭前台调度系统//恢复默认状态nfcAdapter.disableForegroundDispatch(main);}});plus.globalEvent.addEventListener('resume', function(e) {console.log('resume running');if (nfcAdapter) {//开启前台调度系统nfcAdapter.enableForegroundDispatch(main, pendingIntent, intentFiltersArray, techListsArray);}});nfcAdapter.enableForegroundDispatch(main, pendingIntent, intentFiltersArray, techListsArray);// 监听事件，触发条件readyRead = true;uni.showToast({title: '请将NFC标签靠近！',icon: 'none'});} catch (e) {console.error(e);obj.fail(e);} finally{objplete();}},byteArrayToHexString: function(inarray) {let i, j, inn;let hex = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F"];let out = "";for (j = 0; j < inarray.length; ++j) {inn = inarray[j] & 0xff;i = (inn >>> 4) & 0x0f;out += hex[i];i = inn & 0x0f;out += hex[i];}return out;},}

先勾选权限

判断当前设备是否支持NFC以及是否打开了NFC功能

var main = plus.android.runtimeMainActivity();
var NfcAdapter = plus.android.importClass("android.nfc.NfcAdapter");
var _nfcAdapter = NfcAdapter.getDefaultAdapter(main);
console.log('NFC',_nfcAdapter)
if (_nfcAdapter == null) {console.log("本手机不支持NFC")
} else if (_nfcAdapter.isEnabled() == false) {console.log("NFC功能未打开")
} else {console.log('okokokok')
}

页面使用

import nfc from "@/common/nfc.js" //nfc代码放js文件里
onLoad(){nfc.Into()
},
onReady() {console.log('onready')let that = thisnfc.data.callback = function(data){console.log('getId', data)uni.$emit('refreshNFC', { refresh: true , data: data});uni.navigateBack()}
},
onShow(){nfc.readData()
},
onHide() {nfc.nfcclose()
},

nfc.js文件

let Context = plus.android.importClass("android.content.Context");
let NfcManager = plus.android.importClass("android.nfc.NfcManager");
let NfcAdapter = plus.android.importClass("android.nfc.NfcAdapter");
let Settings = plus.android.importClass("android.provider.Settings");
let Intent = plus.android.importClass("android.content.Intent");
let Parcelable = plus.android.importClass("android.os.Parcelable");
let PendingIntent = plus.android.importClass('android.app.PendingIntent');
let IntentFilter = plus.android.importClass('android.content.IntentFilter');
let NdefRecord = plus.android.importClass("android.nfc.NdefRecord");
let NdefMessage = plus.android.importClass("android.nfc.NdefMessage");
let Tag = plus.android.importClass("android.nfc.Tag");
let MifareClassic = plus.android.importClass("android.nfc.tech.MifareClassic");
let invoke = plus.android.invoke;const Nfc = {//所需要的数据data: {sector: 13, //0号扇区initVal:'FFFFFFFFFFFF',keyValA: '837210987622', //扇区密码keyValB: '12BBADDAEA11',status: 'read', //当前操作方式：是读卡 还是 写卡WriteData: '', //当status为write时生效。需要写入的数字。长度不能超过32位。只能为数字block: 1, //当status为write时生效。需要写入0号扇区的几号块keyType: 'A', //验证方式nfcAdapter: null,ICUID: '', //卡片IDmain: null,intent: null,IntervalId: null,callback: null, //回调事件techListsArray: [["android.nfc.tech.IsoDep"],["android.nfc.tech.NfcA"],["android.nfc.tech.NfcB"],["android.nfc.tech.NfcF"],["android.nfc.tech.NfcV"],["android.nfc.tech.Ndef"],["android.nfc.tech.NdefFormatable"],["android.nfc.tech.MifareClassic"],["android.nfc.tech.MifareUltralight"]]},//初始化Into: function() {this.data.main = plus.android.runtimeMainActivity();var nfchManager = this.data.main.getSystemService(Context.NFC_SERVICE);var nfcAdapter = nfchManager.getDefaultAdapter();if (!nfcAdapter.isEnabled()) {this.data.intent = new Intent(Settings.ACTION_NFC_SETTINGS);this.data.main.startActivity(this.data.intent);}var intent = new Intent(this.data.main, this.data.main.getClass());intent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);var pendingIntent = PendingIntent.getActivity(this.data.main, 0, intent, 0);var ndef = new IntentFilter("android.nfc.action.TECH_DISCOVERED");ndef.addDataType("*/*");var intentFiltersArray = [ndef];nfcAdapter.enableForegroundDispatch(this.data.main, pendingIntent, intentFiltersArray, this.data.techListsArray);this.data.nfcAdapter = nfcAdapter;},//取消操作nfcclose: function() {if (this.data.nfcAdapter) {this.data.nfcAdapter.disableForegroundDispatch(this.data.main);}this.data.nfcAdapter = null;clearInterval(this.data.IntervalId);},//轮询获取当前NFC设备触发的事件handle_nfc_data: function() {// console.log('轮训中')var intent = this.data.main.getIntent();console.log(intent.getAction())if (intent.getAction() == "android.nfc.action.TECH_DISCOVERED") {// console.log('222222')clearInterval(this.data.IntervalId);// intent.setAction('android.intent.action.MAIN')if (this.data.status === 'read') {console.log('开始读取信息')this._readData(intent);} else {// console.log('开始写入数据')this._WriteData(intent);}}},// 16进制转10进制hex2int:function(val) {var len = val.length;var callVal ="";for (var i = 0; i < len; i++) {callVal += val[i];}return parseInt(callVal,16);},// byte转16进制Bytes2Str: function(arrBytes) {var str = "";for (var i = 0; i < arrBytes.length; i++) {var tmp;var num = arrBytes[i];if (num < 0) {//此处填坑，当byte因为符合位导致数值为负时候，需要对数据进行处理tmp = (255 + num + 1).toString(16);} else {tmp = num.toString(16);}if (tmp.length == 1) {tmp = "0" + tmp;}if (i > 0) {str += ":" + tmp;} else {str += tmp;}}return str;},//读取设备_readData: function(intent) {setTimeout(function() {uni.hideLoading();}, 2000);var tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);var techList = tag.getTechList();var bisMfc = false;for (var i = 0; i < techList.length; i++) {if (techList[i].indexOf('MifareClassic') >= 0) {bisMfc = true;break;}}if (!bisMfc) {uni.hideLoading();uni.showModal({content: "卡片类型错误",showCancel: false});return;}var mfc = MifareClassic.get(tag);if (!mfc) {uni.hideLoading();uni.showModal({content: "卡片获取错误",showCancel: false});return;}mfc.setTimeout(3000);if (!mfc.isConnected()) {try {invoke(mfc, 'connect');} catch (e) {uni.hideLoading();uni.showModal({content: "卡片连接错误",showCancel: false});return;}}try {this.data.ICUID = this.ByteArrayToHexString(tag.getId());var cmdBytesA = this.HexStringToByteArray(this.data.keyValA);var cmdBytesB = this.HexStringToByteArray(this.data.keyValB);var initBytes = this.HexStringToByteArray(this.data.initVal)var auth = false;if (invoke(mfc, "authenticateSectorWithKeyA", parseInt(this.data.sector), cmdBytesA)) {console.log("aaaaaaaaaaaaaaaaaaaaaa")console.log(invoke(mfc, "authenticateSectorWithKeyA", parseInt(this.data.sector), cmdBytesA))auth = true;// return;} else if(invoke(mfc, "authenticateSectorWithKeyB", parseInt(this.data.sector), cmdBytesB))  {console.log("bbbbbbbbbbbb")auth = true;// return;}// console.log(invoke(mfc, "authenticateSectorWithKeyA", parseInt(this.data.sector), cmdBytesA))console.log(8888888888)console.log(invoke(mfc, "authenticateSectorWithKey", parseInt(this.data.sector), initBytes))if(!invoke(mfc, "authenticateSectorWithKeyA", parseInt(this.data.sector), cmdBytesA) &&!invoke(mfc, "authenticateSectorWithKeyB", parseInt(this.data.sector), cmdBytesB)){uni.hideLoading();uni.showModal({content: "未发卡",showCancel: false});return;}if (!auth) {uni.hideLoading();uni.showModal({content: "请靠近一点",showCancel: false});return;}console.log('666666')console.log(auth)var data = mfc.readBlock(52);var str = this.Bytes2Str(data);var arr = str.split(":");var callValue = this.hex2int(arr.splice(0,5));  //车用截取 前4位  液化与工业 截取前5位console.log("值:" + str)this.data.callback(callValue);mfc.close();// this.nfcclose();// uni.showModal({//     content: "扇区读取成功",//     showCancel: false// });} catch (e) {console.error(e);} finally {mfc.close();}},ByteArrayToHexString: function(inarray) {var i, j, inn;var hex = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'];var out = '';for (j = 0; j < inarray.length; ++j) {inn = inarray[j] & 0xff;i = (inn >>> 4) & 0x0f;out += hex[i];i = inn & 0x0f;out += hex[i];}return out;},HexStringToByteArray: function(instr) {var hexA = new Array();var pos = 0;var len = instr.length / 2;for (var i = 0; i < len; i++) {var s = instr.substr(pos, 2);var v = parseInt(s, 16);if (v >= 128)v = v - 256;hexA.push(v);pos += 2;}return hexA;},//对外开放的读取事件readData: function(){//输入请靠近设备// uni.showLoading({// 	title: '请靠近设备'// });this.data.status = "read";this.data.IntervalId = setInterval(()=>{this.handle_nfc_data();}, 1000);},
}export default Nfc