// 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 readyWriteData = false;

let readyRead = false;

let noNFC = false;

let techListsArray = [

["android.nfc.tech.IsoDep"],

["android.nfc.tech.NfcA"],

["android.nfc.tech.NfcB"],

["android.nfc.tech.NfcF"],

["android.nfc.tech.Ndef"],

["android.nfc.tech.NfcV"],

["android.nfc.tech.NdefFormatable"],

["android.nfc.tech.MifareClassic"],

["android.nfc.tech.MifareUltralight"]

];

// 要写入的数据

let text = '{id:123,name:nfc,stie:cssmini.com}';

let readResult = '';

export default {

listenNFCStatus: function() {

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'

})

noNFC = true;

return;

}

if (!nfcAdapter.isEnabled()) {

uni.showToast({

title: '请在系统设置中先启用NFC功能！',

icon: 'none'

});

noNFC = true;

return;

} else {

noNFC = false;

}

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 NFC

setTimeout(that.nfcRuning(), 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);

} catch (e) {

console.error(e);

}

},

nfcRuning: 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()) {

console.log("readyWriteData=" + readyWriteData + " readyRead=" + readyRead)

if (readyWriteData) {

that.write(intent);

readyWriteData = false;

} else if (readyRead) {

that.read(intent);

readyRead = false;

}

}

},

write(intent) {

try {

toast('请勿移开标签 正在写入...');

console.log("text=" + text);

let textBytes = plus.android.invoke(text, "getBytes");

// image/jpeg text/plain

let textRecord = new NdefRecord(NdefRecord.TNF_MIME_MEDIA,

plus.android.invoke("text/plain", "getBytes"),

plus.android.invoke("", "getBytes"), textBytes);

let message = new NdefMessage([textRecord]);

let Ndef = plus.android.importClass('android.nfc.tech.Ndef');

let NdefFormatable = plus.android.importClass('android.nfc.tech.NdefFormatable');

let tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);

let ndef = Ndef.get(tag);

if (ndef != null) {

// 待写入的数据长度

let size = message.toByteArray().length;

ndef.connect();

if (!ndef.isWritable()) {

toast('tag不允许写入！');

return;

}

if (ndef.getMaxSize() < size) {

toast('文件大小超出容量！');

return;

}

ndef.writeNdefMessage(message);

toast('写入数据成功！');

return;

} else {

let format = NdefFormatable.get(tag);

if (format != null) {

try {

format.connect();

format.format(message);

toast('格式化tag并且写入message');

return;

} catch (e) {

toast('格式化tag失败.');

return;

}

} else {

toast('Tag不支持NDEF');

return;

}

}

} catch (e) {

toast('写入失败');

console.log("error=" + e);

}

},

read(intent) {

this.getData(intent);

},

byteArrayToHexString: function(inarray) { // converts byte arrays to string

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) {

if(inarray[j]==0) continue;

inn = inarray[j] & 0xff;

i = (inn >>> 4) & 0x0f;

out += hex[i];

i = inn & 0x0f;

out += hex[i];

}

return out;

},

writeData: function() {

if (noNFC) {

toast('请检查设备是否支持并开启 NFC 功能！');

return;

}

// 监听事件，触发条件

readyWriteData = true;

toast('请将NFC标签靠近！');

},

readData: function() {

if (noNFC) {

toast('请检查设备是否支持并开启 NFC 功能！');

return;

}

// 监听事件，触发条件

readyRead = true;

toast('请将NFC标签靠近！');

},

getData: function(intent) {

var sector = 1;

var tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);

let mc = plus.android.importClass('android.nfc.tech.MifareClassic');

let mfc = mc.get(tag);

console.log('mfc', mfc)

mfc.connect();

var cmdBytes = [0x6A, 0x69, 0x61, 0x6A, 0x75, 0x6E]

console.log('mfc', cmdBytes)

var auth = mfc.authenticateSectorWithKeyA(sector, cmdBytes)

console.log('auth', auth);

if (!auth) return;

try {

var tmpRet,result;

for (var i = 0; i < 3; i++) {

tmpRet = mfc.readBlock(sector * 4 + i);

result+=this.hexCharCodeToStr(this.byteArrayToHexString(tmpRet))

}

console.log('result',result);

} catch (e) {

this.ICERROR = e.message;

console.error(e);

} finally {

mfc.close();

}

},

//Key处理函数

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;

},

hexCharCodeToStr: function(hexCharCodeStr) {

var trimedStr = hexCharCodeStr.trim();

var rawStr =

trimedStr.substr(0, 2).toLowerCase() === "0x" ?

trimedStr.substr(2) :

trimedStr;

var len = rawStr.length;

if (len % 2 !== 0) {

alert("Illegal Format ASCII Code!");

return "";

}

var curCharCode;

var resultStr = [];

for (var i = 0; i < len; i = i + 2) {

curCharCode = parseInt(rawStr.substr(i, 2), 16); // ASCII Code Value

resultStr.push(String.fromCharCode(curCharCode));

}

return resultStr.join("");

}

}

function toast(content) {

uni.showToast({

title: content,

icon: 'none'

})

}