如何在不刷新的情况下在android中扫描NFC？

<uses-permission android:name="android.permission.NFC" />

<activity>
    ...
    <intent-filter>
        <action android:name="android.nfc.action.NDEF_DISCOVERED" />
        <category android:name="android.intent.category.DEFAULT" />
        <data android:mimeType="text/plain" />
    </intent-filter>
    ...
</activity>

public class MainActivity extends AppCompatActivity {
    private NfcAdapter nfcAdapter;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        nfcAdapter = NfcAdapter.getDefaultAdapter(this);
    }

    @Override
    protected void onResume() {
        super.onResume();
        enableNfcForegroundDispatch();
    }

    @Override
    protected void onPause() {
        super.onPause();
        disableNfcForegroundDispatch();
    }

    private void enableNfcForegroundDispatch() {
        Intent intent = new Intent(this, MainActivity.class);
        intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING);
        PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, intent, 0);
        IntentFilter[] intentFiltersArray = new IntentFilter[]{};

        nfcAdapter.enableForegroundDispatch(this, pendingIntent, intentFiltersArray, null);
    }

    private void disableNfcForegroundDispatch() {
        nfcAdapter.disableForegroundDispatch(this);
    }
}

@Override
protected void onNewIntent(Intent intent) {
    super.onNewIntent(intent);

    if (NfcAdapter.ACTION_NDEF_DISCOVERED.equals(intent.getAction())) {
        Parcelable[] rawMessages = intent.getParcelableArrayExtra(NfcAdapter.EXTRA_NDEF_MESSAGES);
        if (rawMessages != null) {
            NdefMessage[] messages = new NdefMessage[rawMessages.length];
            for (int i = 0; i < rawMessages.length; i++) {
                messages[i] = (NdefMessage) rawMessages[i];
            }
            // 处理NDEF消息
            handleNdefMessages(messages);
        }
    }
}

private void handleNdefMessages(NdefMessage[] messages) {
    // 处理接收到的NDEF消息
}