基于UNIAPP整合NFC功能(安卓端)
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在你的JS类库创建一个nfc.js(名字随你),写入一下代码:
var NfcAdapter;
export default {
// 初始化NFC
NFCInit() {
try {
let main2 = 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 IntentFilter2 = plus.android.importClass('android.content.IntentFilter');
NfcAdapter = plus.android.importClass('android.nfc.NfcAdapter');
let _nfcAdapter = NfcAdapter.getDefaultAdapter(main2);
let ndef = new IntentFilter2('android.nfc.action.NDEF_DISCOVERED');
let tag = new IntentFilter2('android.nfc.action.TAG_DISCOVERED');
let tech = new IntentFilter2('android.nfc.action.TECH_DISCOVERED');
let intentFiltersArray = [ndef, tag, tech];
let techListsArray = [
['android.nfc.tech.Ndef'],
['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 _intent = new Intent(main2, main2.getClass());
_intent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
let pendingIntent = PendingIntent.getActivity(main2, 0, _intent, 0);
if (_nfcAdapter == null) {} else if (_nfcAdapter.isEnabled() == false) {} else {
_nfcAdapter.enableForegroundDispatch(main2, pendingIntent, IntentFilter2, techListsArray);
}
} catch (e) {}
},
// 读取NFC上的数据
NFCReadUID() {
let main3 = plus.android.runtimeMainActivity();
let _intent = main3.getIntent();
let _action = _intent.getAction();
if (NfcAdapter.ACTION_NDEF_DISCOVERED == _action || NfcAdapter.ACTION_TAG_DISCOVERED == _action ||
NfcAdapter.ACTION_TECH_DISCOVERED == _action) {
let Tag = plus.android.importClass('android.nfc.Tag');
let tagFromIntent = _intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
let bind_code = _intent.getByteArrayExtra(NfcAdapter.EXTRA_ID);
bind_code = this.byteArrayToHexString(bind_code);
uni.$emit('nfcCode', {
code: bind_code
})
}
},
// 将转大写格式
byteArrayToHexString(inarray) {
let i, j, inn;
let hex = ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F"];
let out = "";
for (j = 0; j < inarray.length; ++j) {
inn = inarray[j] & 0xff;
i = (inn >>> 4) & 0x0f;
out += hex[i];
i = inn & 0x0f;
out += hex[i];
}
return out;
},
}
import nfcFun from "@/common/nfc.js";
export default {
created(option) {
nfcFun.NFCInit();
},
onHide() {
nfcFun.NFCReadUID();
},
onLoad() {
// 接收nfc的值
uni.$on('nfcCode',(data)=>{
console.log(data);
})
},
onUnload() {
uni.$off('nfcCode')//移除监听nfc
}
}
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