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基本构造NFC数据接口与写入功能。NFC数据写入验证未测试。

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This commit is contained in:
ZhangShaojian
2026-03-14 13:49:08 +08:00
parent bc913fd7f0
commit 37173c7c3a
8 changed files with 455 additions and 7 deletions
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4
autonfc/build.properties
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@@ -1,8 +1,8 @@
#Created by .winboll/winboll_app_build.gradle
#Fri Mar 13 08:58:09 GMT 2026
#Sat Mar 14 05:43:18 GMT 2026
stageCount=0
libraryProject=
baseVersion=15.11
publishVersion=15.0.0
buildCount=1
buildCount=3
baseBetaVersion=15.0.1

28
autonfc/src/main/AndroidManifest.xml
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@@ -3,6 +3,16 @@
xmlns:android="http://schemas.android.com/apk/res/android"
package="cc.winboll.studio.autonfc">
<!-- 控制近距离通信 -->
<uses-permission android:name="android.permission.NFC"/>
<!-- 拥有完全的网络访问权限 -->
<uses-permission android:name="android.permission.INTERNET"/>
<uses-feature
android:name="android.hardware.nfc"
android:required="true"/>
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
@@ -26,12 +36,26 @@
</activity>
<activity
android:name=".nfc.NFCInterfaceActivity"
android:launchMode="singleTop">
<intent-filter>
<action android:name="android.nfc.action.NDEF_DISCOVERED"/>
<category android:name="android.intent.category.DEFAULT"/>
<data android:mimeType="*/*"/>
</intent-filter>
</activity>
<meta-data
android:name="android.max_aspect"
android:value="4.0"/>
<activity android:name=".GlobalApplication$CrashActivity"/>
</application>
</manifest>

7
autonfc/src/main/java/cc/winboll/studio/autonfc/MainActivity.java
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@@ -5,6 +5,9 @@ import androidx.appcompat.app.AppCompatActivity;
import androidx.appcompat.widget.Toolbar;
import cc.winboll.studio.libappbase.LogView;
import cc.winboll.studio.libappbase.ToastUtils;
import android.view.View;
import android.content.Intent;
import cc.winboll.studio.autonfc.nfc.NFCInterfaceActivity;
public class MainActivity extends AppCompatActivity {
@@ -28,4 +31,8 @@ public class MainActivity extends AppCompatActivity {
super.onResume();
mLogView.start();
}
public void onNFCInterfaceActivity(View view) {
startActivity(new Intent(this, NFCInterfaceActivity.class));
}
}

248
autonfc/src/main/java/cc/winboll/studio/autonfc/nfc/NFCInterfaceActivity.java Normal file
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@@ -0,0 +1,248 @@
package cc.winboll.studio.autonfc.nfc;
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.NfcManager;
import android.nfc.Tag;
import android.nfc.tech.Ndef;
import android.nfc.tech.NdefFormatable;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import java.io.IOException;
import java.nio.charset.Charset;
import cc.winboll.studio.autonfc.R;
/**
* @Author 豆包&ZhanGSKen<zhangsken@qq.com>
* @Date 2026/03/14 13:35
*/
public class NFCInterfaceActivity extends Activity {
private NfcAdapter mNfcAdapter;
private PendingIntent mPendingIntent;
private IntentFilter[] mIntentFilters;
private String[][] mTechLists;
// 调试UI
private TextView tvStatus;
private TextView tvData;
private Button btnWrite;
// 当前标签
private Tag mCurrentTag;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_nfc_interface);
tvStatus = findViewById(R.id.tv_nfc_status);
tvData = findViewById(R.id.tv_nfc_data);
btnWrite = findViewById(R.id.btn_write_nfc);
initNfc();
btnWrite.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
writeNfc("Test NFC Data Java7");
}
});
}
private void initNfc() {
NfcManager manager = (NfcManager) getSystemService(NFC_SERVICE);
mNfcAdapter = manager.getDefaultAdapter();
if (mNfcAdapter == null) {
showToast("设备不支持NFC");
return;
}
Intent intent = new Intent(this, getClass()).addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
mPendingIntent = PendingIntent.getActivity(this, 0, intent, 0);
IntentFilter filter = new IntentFilter(NfcAdapter.ACTION_NDEF_DISCOVERED);
try {
filter.addDataType("*/*");
} catch (IntentFilter.MalformedMimeTypeException e) {
e.printStackTrace();
}
mIntentFilters = new IntentFilter[]{filter};
mTechLists = new String[][]{{Ndef.class.getName()}, {NdefFormatable.class.getName()}};
}
@Override
protected void onResume() {
super.onResume();
// 静态启动监听
NfcStateMonitor.startMonitor();
enableForeground();
}
@Override
protected void onPause() {
super.onPause();
// 静态停止监听
NfcStateMonitor.stopMonitor();
disableForeground();
}
private void enableForeground() {
if (mNfcAdapter != null) {
mNfcAdapter.enableForegroundDispatch(this, mPendingIntent, mIntentFilters, mTechLists);
}
}
private void disableForeground() {
if (mNfcAdapter != null) {
mNfcAdapter.disableForegroundDispatch(this);
}
}
@Override
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
String action = intent.getAction();
if (NfcAdapter.ACTION_NDEF_DISCOVERED.equals(action)
|| NfcAdapter.ACTION_TECH_DISCOVERED.equals(action)
|| NfcAdapter.ACTION_TAG_DISCOVERED.equals(action)) {
// 通知接口：已连接
NfcStateMonitor.notifyNfcConnected();
updateUiStatus("卡片已靠近");
mCurrentTag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
readNfc(intent);
}
}
// ========== 公开读取方法 ==========
public void readNfc(Intent intent) {
if (intent == null) {
NfcStateMonitor.notifyReadFail("intent null");
return;
}
Tag tag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
if (tag == null) {
NfcStateMonitor.notifyReadFail("tag null");
return;
}
Ndef ndef = Ndef.get(tag);
if (ndef == null) {
NfcStateMonitor.notifyReadFail("不支持NDEF");
return;
}
try {
ndef.connect();
NdefMessage msg = ndef.getNdefMessage();
if (msg == null) {
NfcStateMonitor.notifyReadFail("空标签");
ndef.close();
return;
}
NdefRecord[] records = msg.getRecords();
if (records != null && records.length > 0) {
String data = new String(records[0].getPayload(), Charset.forName("UTF-8"));
NfcStateMonitor.notifyReadSuccess(data);
updateUiData(data);
}
ndef.close();
} catch (Exception e) {
NfcStateMonitor.notifyReadFail(e.getMessage());
}
}
// ========== 公开写入方法 ==========
public boolean writeNfc(String text) {
if (mCurrentTag == null) {
NfcStateMonitor.notifyWriteFail("未检测到标签");
updateUiStatus("请先靠近卡片");
return false;
}
NdefRecord record = createTextRecord(text);
NdefMessage msg = new NdefMessage(new NdefRecord[]{record});
try {
Ndef ndef = Ndef.get(mCurrentTag);
if (ndef != null) {
ndef.connect();
if (ndef.isWritable()) {
ndef.writeNdefMessage(msg);
ndef.close();
NfcStateMonitor.notifyWriteSuccess();
updateUiStatus("写入成功");
updateUiData(text);
return true;
}
} else {
NdefFormatable f = NdefFormatable.get(mCurrentTag);
if (f != null) {
f.connect();
f.format(msg);
f.close();
NfcStateMonitor.notifyWriteSuccess();
updateUiStatus("格式化并写入成功");
return true;
}
}
} catch (Exception e) {
NfcStateMonitor.notifyWriteFail(e.getMessage());
updateUiStatus("写入失败：" + e.getMessage());
}
return false;
}
private NdefRecord createTextRecord(String text) {
byte[] lang = "en".getBytes(Charset.forName("UTF-8"));
byte[] txt = text.getBytes(Charset.forName("UTF-8"));
byte[] payload = new byte[1 + lang.length + txt.length];
payload[0] = (byte) lang.length;
System.arraycopy(lang, 0, payload, 1, lang.length);
System.arraycopy(txt, 0, payload, 1 + lang.length, txt.length);
return new NdefRecord(NdefRecord.TNF_WELL_KNOWN, NdefRecord.RTD_TEXT, new byte[0], payload);
}
private void updateUiStatus(final String s) {
runOnUiThread(new Runnable() {
@Override
public void run() {
tvStatus.setText("状态：" + s);
}
});
}
private void updateUiData(final String s) {
runOnUiThread(new Runnable() {
@Override
public void run() {
tvData.setText(s);
}
});
}
private void showToast(final String s) {
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(NFCInterfaceActivity.this, s, Toast.LENGTH_SHORT).show();
}
});
}
}

110
autonfc/src/main/java/cc/winboll/studio/autonfc/nfc/NfcStateMonitor.java Normal file
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@@ -0,0 +1,110 @@
package cc.winboll.studio.autonfc.nfc;
import android.nfc.NfcAdapter;
import java.util.HashMap;
import java.util.Map;
/**
* @Author 豆包&ZhanGSKen<zhangsken@qq.com>
* @Date 2026/03/14 13:34
*/
public class NfcStateMonitor {
// 保存所有监听实例
private static Map<String, OnNfcStateListener> sListenerMap = new HashMap<>();
// 全局 NFC 状态标记
private static boolean sIsRunning = false;
// ============= 公开静态：启动监听 =============
public static void startMonitor() {
if (sIsRunning) return;
// 初始化 Map
sListenerMap = new HashMap<>();
sIsRunning = true;
// 回调所有监听器：监控已启动
notifyMonitorStarted();
}
// ============= 公开静态：停止监听 =============
public static void stopMonitor() {
if (!sIsRunning) return;
sIsRunning = false;
// 清空所有监听器
if (sListenerMap != null) {
sListenerMap.clear();
sListenerMap = null;
}
}
// ============= 公开静态：注册监听 =============
public static void registerListener(String key, OnNfcStateListener listener) {
if (!sIsRunning || listener == null) return;
sListenerMap.put(key, listener);
}
// ============= 公开静态：移除监听 =============
public static void unregisterListener(String key) {
if (!sIsRunning || key == null) return;
sListenerMap.remove(key);
}
// ============= 下面是内部回调分发 =============
public static void notifyNfcConnected() {
if (!sIsRunning) return;
for (OnNfcStateListener l : sListenerMap.values()) {
l.onNfcConnected();
}
}
public static void notifyNfcDisconnected() {
if (!sIsRunning) return;
for (OnNfcStateListener l : sListenerMap.values()) {
l.onNfcDisconnected();
}
}
public static void notifyReadSuccess(String data) {
if (!sIsRunning) return;
for (OnNfcStateListener l : sListenerMap.values()) {
l.onNfcReadSuccess(data);
}
}
public static void notifyReadFail(String error) {
if (!sIsRunning) return;
for (OnNfcStateListener l : sListenerMap.values()) {
l.onNfcReadFail(error);
}
}
public static void notifyWriteSuccess() {
if (!sIsRunning) return;
for (OnNfcStateListener l : sListenerMap.values()) {
l.onNfcWriteSuccess();
}
}
public static void notifyWriteFail(String error) {
if (!sIsRunning) return;
for (OnNfcStateListener l : sListenerMap.values()) {
l.onNfcWriteFail(error);
}
}
private static void notifyMonitorStarted() {
if (!sIsRunning) return;
for (OnNfcStateListener l : sListenerMap.values()) {
l.onNfcConnected(); // 仅示意启动
}
}
public static boolean isMonitorRunning() {
return sIsRunning;
}
}

25
autonfc/src/main/java/cc/winboll/studio/autonfc/nfc/OnNfcStateListener.java Normal file
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@@ -0,0 +1,25 @@
package cc.winboll.studio.autonfc.nfc;
/**
* @Author 豆包&ZhanGSKen<zhangsken@qq.com>
* @Date 2026/03/14 13:33
*/
public interface OnNfcStateListener {
// NFC 已连接（卡片靠近）
void onNfcConnected();
// NFC 已断开（卡片移开）
void onNfcDisconnected();
// 读取成功
void onNfcReadSuccess(String data);
// 读取失败
void onNfcReadFail(String error);
// 写入成功
void onNfcWriteSuccess();
// 写入失败
void onNfcWriteFail(String error);
}

6
autonfc/src/main/res/layout/activity_main.xml
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@@ -26,11 +26,11 @@
android:layout_weight="1.0"
android:gravity="center_vertical|center_horizontal">
<TextView
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="AndroidX Demo"
android:textAppearance="?android:attr/textAppearanceLarge"/>
android:text="NFC Interface Activity"
android:onClick="onNFCInterfaceActivity"/>
</LinearLayout>

34
autonfc/src/main/res/layout/activity_nfc_interface.xml Normal file
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@@ -0,0 +1,34 @@
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:padding="16dp">
<TextView
android:id="@+id/tv_nfc_status"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="16sp"
android:text="状态：未启动"/>
<Button
android:id="@+id/btn_write_nfc"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="写入测试数据"/>
<TextView
android:id="@+id/tv_nfc_data"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#f0f0f0"
android:padding="10dp"
android:layout_marginTop="10dp"
android:text="数据"/>
</LinearLayout>