这篇文章主要为大家详细介绍了Android实现NFC读取校园卡，文中示例代码介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们可以参考一下
本文实例为大家分享了Android实现NFC读取校园卡的具体代码，供大家参考，具体内容如下
主程序：
package com.nfclab.stuCard; import java.io.IOException; import android.app.Activity; import android.app.PendingIntent; import android.content.Intent; import android.content.IntentFilter; import android.nfc.NdefMessage; import android.nfc.NdefRecord; import android.nfc.NfcAdapter; import android.nfc.Tag; import android.nfc.tech.Ndef; import android.nfc.tech.NdefFormatable; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.Button; import android.widget.EditText; import android.widget.TextView; import android.widget.Toast; public class stuCardActivity extends Activity { private NfcAdapter mNfcAdapter; private PendingIntent mPendingIntent; private IntentFilter[] mFilters; private String[][] mTechLists; private String studentId=""; private String studentName=" "; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); final EditText studentIdEditText = (EditText)this.findViewById(R.id.studentIdEditText); final EditText studentNameEditText = (EditText)this.findViewById(R.id.studentNameEditText); Button writeStudentButton = (Button)this.findViewById(R.id.writeStudentButton); writeStudentButton.setOnClickListener(new android.view.View.OnClickListener() { public void onClick(View view) { studentId = studentIdEditText.getText().toString(); studentName = studentNameEditText.getText().toString(); TextView messageText = (TextView)findViewById(R.id.messageText); messageText.setText("Touch NFC Tag to write \n"); messageText.append("Student id:" + studentId + "\nStudent Name: " + studentName ); } }); Button exitButton = (Button)findViewById(R.id.exitButton); exitButton.setOnClickListener(new android.view.View.OnClickListener() { public void onClick(View v) { finish(); } }); mNfcAdapter = NfcAdapter.getDefaultAdapter(this); mPendingIntent = PendingIntent.getActivity(this, 0, new Intent(this, getClass()).addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP), 0); IntentFilter ndef = new IntentFilter(NfcAdapter.ACTION_NDEF_DISCOVERED); //ndef.addDataScheme("http"); mFilters = new IntentFilter[] { ndef, }; mTechLists = new String[][] { new String[] { Ndef.class.getName() }, new String[] { NdefFormatable.class.getName() }}; } @Override public void onResume() { super.onResume(); if (mNfcAdapter != null) mNfcAdapter.enableForegroundDispatch(this, mPendingIntent, mFilters, mTechLists); } @Override public void onNewIntent(Intent intent) { Log.i("Foreground dispatch", "Discovered tag with intent: " + intent); Tag tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG); String externalType = "nfclab.com:transport"; String payload = studentId+":"+studentName; NdefRecord extRecord1 = new NdefRecord(NdefRecord.TNF_EXTERNAL_TYPE, externalType.getBytes(), new byte[0], payload.getBytes()); NdefMessage newMessage = new NdefMessage(new NdefRecord[] { extRecord1}); writeNdefMessageToTag(newMessage, tag); } @Override public void onPause() { super.onPause(); mNfcAdapter.disableForegroundDispatch(this); } boolean writeNdefMessageToTag(NdefMessage message, Tag detectedTag) { int size = message.toByteArray().length; try { Ndef ndef = Ndef.get(detectedTag); if (ndef != null) { ndef.connect(); if (!ndef.isWritable()) { Toast.makeText(this, "Tag is read-only.", Toast.LENGTH_SHORT).show(); return false; } if (ndef.getMaxSize() 布局文件：
配置文件：
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