高通 Android 12 调试产测NFC功能

高通 Android 12 调试产测NFC功能"/>

高通 Android 12 调试产测NFC功能

 1、在dev/nxpnfc节点添加对应的文件权限

on property:sys.boot_completed=1# nfc add by zmchmod 777 /dev/nxpnfc

2、在vendor/nxp/nfcdevice-nfc.mk文件中 修改NFC添加到编译路径如下所示,跟平时内置apk方式有点类似

PRODUCT_PACKAGES += NFCTestApp-include \vendor\nxp\nfc\FactoryTestApp\Android.mk

3、然后执行make命令 这时候就会在out目录下面system/bin目录生成 NFCTestApp可执行文件

4、产测中执行shell命令 代码如下

val nfcShell = Shell.exe("/system/bin/NFCTestApp")
if(nfcShell.contains("xxx"){requireActivity().runOnUiThread(Runnable {textView!!.text = "识别NFC成功"})}

5、其他原生识别NFC的方式

6、Android原生识别NFC

package com.example.nfctest;import androidx.appcompat.app.AppCompatActivity;import android.nfc.tech.Ndef;
import android.os.Bundle;import android.app.PendingIntent;
import android.content.Intent;
import android.nfc.NfcAdapter;
import android.nfc.Tag;
import android.os.Bundle;
import android.text.TextUtils;
import android.util.Log;
import android.widget.TextView;
import android.widget.Toast;import java.util.List;public class MainActivity extends AppCompatActivity {private NfcAdapter nfcAdapter;private PendingIntent pendingIntent;private TextView tvUid;String datas;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);tvUid = (TextView) findViewById(R.id.tv_uid);nfcAdapter = NfcAdapter.getDefaultAdapter(this);/*pendingIntent = PendingIntent.getActivity(this, 0, new Intent(this,getClass()).addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP), 0);*/if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.S) {mPendingPollIntent = PendingIntent.getBroadcast(mContext, POLL_REQUEST, pollIntent, PendingIntent.FLAG_IMMUTABLE);}else{mPendingPollIntent = PendingIntent.getBroadcast(mContext, POLL_REQUEST, pollIntent, 0);} if (nfcAdapter == null) {Toast.makeText(MainActivity.this,"设备不支持NFC",Toast.LENGTH_LONG).show();return;}if (nfcAdapter != null && !nfcAdapter.isEnabled()) {Toast.makeText(MainActivity.this, "请在系统设置中先启用NFC功能", Toast.LENGTH_LONG).show();return;}//onNewIntent(getIntent());}@Overrideprotected void onNewIntent(Intent intent) {super.onNewIntent(intent);resolveIntent(intent);// resolveIntent(intent);}//    void resolveIntent(Intent intent) {
//        Tag tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
//        if (tag != null) {
//            processTag(intent);
//        }
//    }public void processTag(Intent intent) {//处理tagString uid = "";Tag tagFromIntent = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);byte[] aa = tagFromIntent.getId();uid += bytesToHexString(aa);//获取卡的UIDLog.e("processTag","uid="+uid);tvUid.setText(uid);}//    //字符序列转换为16进制字符串
//    private String bytesToHexString(byte[] src) {
//        StringBuilder stringBuilder = new StringBuilder("0x");
//        if (src == null || src.length <= 0) {
//            return null;
//        }
//        char[] buffer = new char[2];
//        for (int i = 0; i < src.length; i++) {
//            buffer[0] = Character.forDigit((src[i] >>> 4) & 0x0F, 16);
//            buffer[1] = Character.forDigit(src[i] & 0x0F, 16);
//            stringBuilder.append(buffer);
//        }
//        return stringBuilder.toString();
//    }/*** 数组转换成十六进制字符串** @param bArray* @return*/public static String bytesToHexString(byte[] bArray) {StringBuffer sb = new StringBuffer(bArray.length);String sTemp;for (int i = 0; i < bArray.length; i++) {sTemp = Integer.toHexString(0xFF & bArray[i]);if (sTemp.length() < 2)sb.append(0);sb.append(sTemp.toUpperCase());}return sb.toString();}@Overrideprotected void onPause() {super.onPause();if (nfcAdapter != null)nfcAdapter.disableForegroundDispatch(this);}@Overrideprotected void onResume() {super.onResume();if (!this.nfcAdapter.isEnabled()) {Toast.makeText(this,"请在系统设置中先启用NFC功能",Toast.LENGTH_SHORT).show();}if (nfcAdapter != null)nfcAdapter.enableForegroundDispatch(this, pendingIntent,null, null);}protected void resolveIntent(Intent intent) {// 得到是否检测到TAG触发if (NfcAdapter.ACTION_TECH_DISCOVERED.equals(intent.getAction())|| NfcAdapter.ACTION_TAG_DISCOVERED.equals(intent.getAction())|| NfcAdapter.ACTION_NDEF_DISCOVERED.equals(intent.getAction())) {// 处理该intentTag tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);// 获取标签id数组byte[] bytesId = tag.getId();//获取消息内容NfcMessageParser nfcMessageParser = new NfcMessageParser(intent);List<String> tagMessage = nfcMessageParser.getTagMessage();if (tagMessage == null || tagMessage.size() == 0) {//Toast.makeText(this, "NFC格式不支持...", Toast.LENGTH_LONG).show();} else {for (int i = 0; i < tagMessage.size(); i++) {Log.e("tag", tagMessage.get(i));}datas = tagMessage.get(0);}String info = "";if (datas != null) {info += "内容：" + datas + "\n卡片ID：" + bytesToHexString(bytesId) + "\n";} else {info += "卡片ID：" + bytesToHexString(bytesId) + "\n";}String[] techList = tag.getTechList();//分析NFC卡的类型： Mifare Classic/UltraLight InfoString cardType = "";for (String aTechList : techList) {if (TextUtils.equals(aTechList, "android.nfc.tech.Ndef")) {Ndef ndef = Ndef.get(tag);cardType += "最大数据尺寸:" + ndef.getMaxSize() + "字节";}}info += cardType;tvUid.setText("NFC信息如下：\n" + info);}}}

 7、NFC解析数据类

package com.example.nfctest;import android.content.Intent;
import android.nfc.NdefMessage;
import android.nfc.NdefRecord;
import android.nfc.NfcAdapter;
import android.os.Parcelable;import java.util.ArrayList;
import java.util.List;/*** 类名 NfcMessageParser* 作者 dy* 功能* 创建日期 2017/3/14 15:54* 修改日期 2017/3/14 15:54*/public class NfcMessageParser {private Intent tagIntent;private String TAG = "NfcMessageParser";public NfcMessageParser() {}public NfcMessageParser(Intent intent) {this.tagIntent = intent;}// 解析NFC信息，public List<String> getTagMessage() {if (NfcAdapter.ACTION_NDEF_DISCOVERED.equals(tagIntent.getAction())) {NdefMessage[] msgs = getTagNdef(tagIntent);List<String> ndefList = getNdefString(msgs);if (ndefList != null && ndefList.size() != 0) {return ndefList;}}return null;}// 得到Intent中的NDEF数据private NdefMessage[] getTagNdef(Intent intent) {// TODO Auto-generated method stubNdefMessage[] msgs = null;Parcelable[] rawMsgs = intent.getParcelableArrayExtra(NfcAdapter.EXTRA_NDEF_MESSAGES);//把序列化数据转成Messaeg对象if (rawMsgs != null) {msgs = new NdefMessage[rawMsgs.length];for (int i = 0; i < rawMsgs.length; i++) {msgs[i] = (NdefMessage) rawMsgs[i];}} else {// Unknown tag typebyte[] empty = new byte[]{};NdefRecord record = new NdefRecord(NdefRecord.TNF_UNKNOWN, empty,empty, empty);NdefMessage msg = new NdefMessage(new NdefRecord[]{record});msgs = new NdefMessage[]{msg};}return msgs;}// 把Message转成Listprivate List<String> getNdefString(NdefMessage[] msgs) {// TODO Auto-generated method stubif (msgs != null && msgs.length != 0) {List<String> tagMessage = parser(msgs[0]);return tagMessage;}return null;}// 把NDEF中的信息系转化为Record，并最终转化为Stringprivate List<String> parser(NdefMessage ndefMessage) {// TODO Auto-generated method stubNdefRecord[] records = ndefMessage.getRecords();List<String> elements = new ArrayList<>();for (NdefRecord ndefRecord : records) {if (!TextRecord.isText(ndefRecord)) {return null;}elements.add(TextRecord.parse(ndefRecord));}return elements;}// 字符序列转换为16进制字符串private String bytesToHexString(byte[] src) {return bytesToHexString(src, true);}private String bytesToHexString(byte[] src, boolean isPrefix) {StringBuilder stringBuilder = new StringBuilder();if (isPrefix) {stringBuilder.append("0x");}if (src == null || src.length <= 0) {return null;}char[] buffer = new char[2];for (int i = 0; i < src.length; i++) {buffer[0] = Character.toUpperCase(Character.forDigit((src[i] >>> 4) & 0x0F, 16));buffer[1] = Character.toUpperCase(Character.forDigit(src[i] & 0x0F,16));System.out.println(buffer);stringBuilder.append(buffer);}return stringBuilder.toString();}}

8、在xml中添加nfc_tech_filter.xml文件 内容如下

、在AndroidManifest.xml中添加以下权限以及NFC TAG标签

    <uses-permission android:name="android.permission.NFC" /><uses-feature android:name="android.hardware.nfc" android:required="true"/><intent-filter><action android:name="android.nfc.action.TECH_DISCOVERED" /></intent-filter><meta-data android:name="android.nfc.action.TECH_DISCOVERED"android:resource="@xml/nfc_tech_filter" /><intent-filter><action android:name="android.nfc.action.TAG_DISCOVERED" /><category android:name="android.intent.category.DEFAULT" /></intent-filter>

9、然后在手机界面打开NFC开关，不知道怎么打开或者手机设置搜索NFC哈，说明NFC功能正常了。

 10、总结：

  1、不管是上面二种那种方式 第一种如果使用这种.c执行shell脚本记得将系统nfc功能开关关闭 否则会冲突不生效哈

2、第二种系统原生nfc 需要注意Android10以后PendingIntent类型发生变化，否则会报错提示。Android12以上PendingIntent需要强制增加FLAG_IMMUTABLE或FLAG_MUTABLE

3、调试的时候可以多拿几种不同NFC卡进行调试。

到这里所有NFC调试流程基本结束了，转载请注明出处高通 Android 12 调试产测NFC功能_KdanMin的博客-CSDN博客。谢谢！