发布时间：2023-08-05 18:30
内容更新时间：【2021-07-20】
1、解决input输入后格式化生效问题、或闪啊闪的问题
// template
// js
changeInput() {
this.$nextTick(() => {
// code demo
this.value = 0;
});
}2、popup弹框，底部适配及全屏（解决chrome、safari顶层遮盖）
底部适配可以参考官方论坛或者百度，修改mainif.json或者自行重写组件样式即可
全屏适配各个浏览器（主要是高度100%），重新修改组件，找到对应的class然后添加 height: 100%;
.uni-transition {
height: 100%;
}
.uni-popup__wrapper-box {
height: 100%;
}
3、在小程序当中，连续点击页面跳转报错
因为navigateTo在小程序当中缓存区只能存储有限个，且不会覆盖或更新
所以只能自己根据需求选择使用navigateTo或者redirectTo4、NFC功能，onLoad中调用NFCListenAndroid，onShow中调用readData
// 包路径
const package_NdefRecord = "android.nfc.NdefRecord";
const package_NdefMessage = "android.nfc.NdefMessage";
const package_NDEF_DISCOVERED = "android.nfc.action.NDEF_DISCOVERED";
const package_TAG_DISCOVERED = "android.nfc.action.TAG_DISCOVERED";
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 main;
let waiting;
let currentNFCInfo = [];
let readyWriteData = false; // 开启写
let readyRead = false; // 开启读
let noNFC = false; // 支持NFC
const 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"],
];
export default {
toast: function(content){
uni.showToast({
title: content,
icon: "none"
});
// plus.nativeUI.toast(msg);
},
NFCInit: function() {
let that = this;
function judgePlatform(){
switch ( plus.os.name ) {
case "Android":
// Android平台: plus.android.*
that.NFCListenAndroid();
break;
case "iOS":
// iOS平台: plus.ios.*
that.toast("暂不支持！");
break;
default:
// 其它平台
that.toast("暂不支持！");
break;
}
}
},
NFCListenAndroid: function() {
let that = this;
try {
main = plus.android.runtimeMainActivity();
let Intent = plus.android.importClass(package_Intent);
let Activity = plus.android.importClass(package_Activity);
let PendingIntent = plus.android.importClass(package_PendingIntent);
let IntentFilter = plus.android.importClass(package_IntentFilter);
NfcAdapter = plus.android.importClass(package_NfcAdapter);
let nfcAdapter = NfcAdapter.getDefaultAdapter(main);
// let Uri = plus.android.importClass("android.net.Uri");
// let Bundle = plus.android.importClass("android.os.Bundle");
// let Handler = plus.android.importClass("android.os.Handler");
if (nfcAdapter == null) {
that.toast("设备不支持NFC！");
noNFC = true;
return ;
} else if (!nfcAdapter.isEnabled()) {
that.toast("请在系统设置中先启用NFC功能！");
noNFC = true;
return ;
} else {
noNFC = false;
// nfcAdapter.enableForegroundDispatch(main, pendingIntent, IntentFilter, techListsArray);
}
let ndef = new IntentFilter(package_NDEF_DISCOVERED);
ndef.addDataType("*/*");
// ndef.addDataType("/");
let tag = new IntentFilter(package_TAG_DISCOVERED);
let tech = new IntentFilter(package_TECH_DISCOVERED);
let intentFiltersArray = [ndef, tag, tech];
let intent = new Intent(main, main.getClass());
intent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
let pendingIntent = PendingIntent.getActivity(main, 0, intent, 0);
plus.globalEvent.addEventListener("newintent", function() {
console.error("newintent running");
// 轮询调用 NFC
setTimeout(() => { that.NFCRuning(); }, 1000);
}, false);
plus.globalEvent.addEventListener("pause", function(e) {
console.error("pause running");
if (nfcAdapter) {
// 关闭前台调度系统 恢复默认状态
nfcAdapter.disableForegroundDispatch(main);
}
}, false);
plus.globalEvent.addEventListener("resume", function(e) {
console.log("resume running");
if (nfcAdapter) {
// 开启前台调度系统 优于所有其他NFC
nfcAdapter.enableForegroundDispatch(main, pendingIntent, intentFiltersArray, techListsArray);
}
}, false);
nfcAdapter.enableForegroundDispatch(main, pendingIntent, intentFiltersArray, techListsArray);
} catch(e){
console.error(e);
}
},
readData: function() {
let that = this;
if(noNFC){
that.toast("请检查设备是否支持并开启 NFC 功能！");
return ;
}
readyRead = true;
that.toast("请将NFC标签靠近！");
setTimeout(() => { that.NFCRuning(null); }, 1000);
},
writeData: function(writeBody) {
let that = this;
if(noNFC){
that.toast("请检查设备是否支持并开启 NFC 功能！");
return ;
}
// 轮询件
readyWriteData = true;
that.toast("请将NFC标签靠近！");
setTimeout(() => { that.NFCRuning(writeBody); }, 1000);
},
NFCRuning: function(writeBody) {
let that = this;
NdefRecord = plus.android.importClass(package_NdefRecord);
NdefMessage = plus.android.importClass(package_NdefMessage);
// let main = plus.android.runtimeMainActivity();
let intent = main.getIntent();
console.log("action type:" + intent.getAction());
if(package_TECH_DISCOVERED == intent.getAction()) {
if(readyWriteData){
that.NFCWrite(intent, writeBody);
readyWriteData = false;
} else if(readyRead){
that.NFCRead(intent);
readyRead = false;
} else {
console.log("what happend!");
}
}
},
NFCRead: function(intent) {
let that = this;
waiting = plus.nativeUI.showWaiting("请将NFC标签靠近！");
waiting.setTitle("请勿移开标签\n正在读取数据...");
try {
let content = "";
waiting.close();
// let tag = plus.android.importClass("android.nfc.Tag");
// let Parcelable = plus.android.importClass("android.os.Parcelable");
// let rawmsgs = intent.getParcelableArrayExtra("android.nfc.extra.NDEF_MESSAGES");
let rawmsgs = intent.getParcelableArrayExtra(NfcAdapter.EXTRA_NDEF_MESSAGES);
// let tagFromIntent = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
let tagid = intent.getByteArrayExtra(NfcAdapter.EXTRA_ID);
console.log(that.ByteArray2HexString(tagid));
//手机终端编码
console.log(plus.device.imei);
if (rawmsgs != null && rawmsgs.length > 0) {
waiting.close();
console.log(rawmsgs);
let records = rawmsgs[0].getRecords();
let result = records[0].getPayload();
if (result != null) {
currentNFCInfo = plus.android.newObject(package_String, result);
}
} else {
console.log("NFC获取失败");
that.toast("NFC获取失败！");
}
} catch(e) {
console.log("NFC获取失败,丢出异常", e);
readyRead = true;
waiting.close();
}
},
NFCWrite: function(intent, content) {
let that = this;
if (!content) {
content = {
id: 1,
name: nfc,
stie: nfc.com
};
}
waiting = plus.nativeUI.showWaiting("请将NFC标签靠近！");
waiting.setTitle("请勿移开标签\n正在写入数据...");
try{
let textBytes = plus.android.invoke(content, "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(package_Ndef);
let NdefFormatable = plus.android.importClass(package_NdefFormatable);
let tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
let ndef = Ndef.get(tag);
if (ndef != null) {
let size = message.toByteArray().length;
console.log("size=" + size);
ndef.connect();
if (!ndef.isWritable()) {
that.toast("tag不允许写入");
waiting.close();
return ;
}
if (ndef.getMaxSize() < size) {
that.toast("文件大小超出容量");
waiting.close();
return ;
}
ndef.writeNdefMessage(message);
waiting.close();
that.toast("写入数据成功.");
return ;
} else {
let format = NdefFormatable.get(tag);
if (format != null) {
try {
format.connect();
format.format(message);
that.toast("格式化tag并且写入message");
waiting.close();
return ;
} catch (e) {
that.toast("格式化tag失败.");
waiting.close();
return ;
}
} else {
that.toast("Tag不支持NDEF");
waiting.close();
return ;
}
}
} catch(e) {
console.log("error=" + e);
waiting.close();
alert("写入失败");
}
},
//将byte[] 转为Hex
Bytes2HexString: function(arrBytes) {
let that = this;
let str = "";
for (let i = 0; i < arrBytes.length; i++) {
let tmp;
let num = arrBytes[i];
if (num < 0) {
//Java中数值是以补码的形式存在的，应用程序展示的十进制是补码对应真值。补码的存在主要为了简化计算机底层的运算，将减法运算直接当加法来做
tmp = (255 + num + 1).toString(16);
} else {
tmp = num.toString(16);
}
if (tmp.length == 1) {
tmp = "0" + tmp;
}
str += tmp;
}
return str;
},
ByteArray2HexString: function(inarray) {
let that = this;
let i, j, tmp;
let hex = [ "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A","B", "C", "D", "E", "F" ];
let out = "";
console.log("here");
for (j = 0; j < inarray.length; ++j) {
tmp = inarray[j] & 0xff;
i = (tmp >> 4) & 0x0f;
out += hex[i];
i = tmp & 0x0f;
out += hex[i];
}
return out;
},
readNfcV: function(intent) {
let that = this;
let NfcV = plus.android.importClass('android.nfc.tech.NfcV');
let tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
// console.log(tag);
console.log(NfcV.get(tag));
let tech = NfcV.get(tag);
if (tech != null) {
try {
tech.connect();
console.log(tech.isConnected());
if (tech.isConnected()) {
console.log('卡片字节数组ID:' + tag.getId());
let tagUid = tag.getId();
let buffer = [];
buffer[0] = 0x22;
buffer[1] = 0x23;
for (let i in tagUid) {
// console.log(tagUid[i]);
buffer.push(tagUid[i]);
}
buffer[10] = 0;
buffer[11] = 0;
console.log(buffer);
let res = tech.transceive(buffer);
if (res != null) {
console.log('标记：' + res);
if (String.fromCharCode(res[1]) == 'H' && String.fromCharCode(res[2]) == 'J' && String.fromCharCode(res[3]) == 'I') {
let blockAddress = 1;
let blocknum = res[4];
let cmd = [];
cmd[0] = 0x22;
cmd[1] = 0x23;
for (let i in tagUid) {
// console.log(tagUid[i]);
cmd.push(tagUid[i]);
}
cmd[10] = blockAddress & 0x0ff;
cmd[11] = (blocknum - 1) & 0x0ff;
console.log(cmd);
let response = tech.transceive(cmd);
let str = ""
for(let j in response){
// console.log(typeof response[j])
str +=this.bytesToString(response[j]);
}
console.log(str);
}
}
}
} catch (e) {
//TODO handle the exception
console.log("读取异常", e;)
}
} else {
this.readNfc(intent);
}
},
writeNfcV: function(intent) {
let that = this;
try {
waiting = plus.nativeUI.showWaiting('请将NFC标签靠近！');
waiting.setTitle('请勿移开标签\n正在写入...');
// let text = document.getElementById('text').value;
console.log('text=' + this.writeCode);
let textBytes = plus.android.invoke(this.writeCode, 'getBytes');
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 NfcV = plus.android.importClass('android.nfc.tech.NfcV');
// let NdefFormatable = plus.android.importClass('android.nfc.tech.NdefFormatable');
let tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
let nfcv = NfcV.get(tag);
console.log('标签格式：' + nfcv);
let bytesId = intent.getByteArrayExtra(NfcAdapter.EXTRA_ID);
console.log('bytesId:' + bytesId);
// console.log(nfcv.getTag().getId())
if (nfcv != null) {
nfcv.connect();
let size = nfcv.getMaxTransceiveLength();
this.writeCode = '123456';//编辑内容
let strVal = this.writeCode;
console.log("zijie:" + this.stringToByte(strVal))
let strValByte = this.stringToByte(strVal);
console.log(strValByte.length)
console.log('最大字节数：' + size);
let cmd = [];
cmd[0] = 0x22;
cmd[1] = 0x21;
for (let i in bytesId) {
// console.log(tagUid[i]);
cmd.push(bytesId[i]);
}
console.log(cmd);
let count = parseInt(strValByte.length + 3)/4 ;//存block数
console.log("count:"+count);
let datav = new Array((count+1)*4);
console.log("datav:"+datav)
// let mark = [];
// mark[0]="72"; //H
// mark[1] = "74";//J
// mark[2] = "73";//I
// mark[3]=count;
datav[0] = 72;
datav[1] = 74;
datav[2] = 73;
datav[3] = count;
// console.log("datav01:"+datav)
for(let j=0;j