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我跟隨了關於如何將NDEF消息寫入標籤的教程。現在當我運行它。它檢測到標籤，並且當我按下按鈕來編寫消息和應用程序崩潰。它給了我JAVA.LANG.ArrayIndexOutOfBoundsException可以有人請幫我對我做錯了什麼。寫入標籤時發生ArrayIndexOutOfBoundsException錯誤
這是我在logcat中看到的錯誤。 
任何幫助表示讚賞。
下面是代碼：
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import android.nfc.FormatException;
import android.nfc.NdefMessage;
import android.nfc.NdefRecord;
import android.nfc.NfcAdapter;
import android.nfc.Tag;
import android.nfc.tech.Ndef;
import android.os.Bundle;
import android.app.Activity;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
public class WriteMessage extends Activity {
NfcAdapter adapter;
PendingIntent pendingIntent;
IntentFilter writeTagFilters[];
boolean writeMode;
Tag myTag;
Context ctx;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_write_message);
ctx=this;
Button WriteTag = (Button) findViewById (R.id.WriteTag);
final TextView Message = (TextView) findViewById (R.id.MessageBox);
WriteTag.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
try{
if(myTag==null){
Toast.makeText(ctx, "Error_detected", Toast.LENGTH_LONG).show();
}else{
write(Message.getText().toString(), myTag);
Toast.makeText(ctx, "Ok_Writing", Toast.LENGTH_LONG).show();
}
}catch(IOException e){
Toast.makeText(ctx, "Error_Writing", Toast.LENGTH_LONG).show();
e.printStackTrace();
//} catch(FormatException e){
e.printStackTrace();
} catch (FormatException e) {
// TODO Auto-generated catch block
Toast.makeText(ctx, "Error_Writing", Toast.LENGTH_LONG).show();
e.printStackTrace();
}
}
});
adapter = NfcAdapter.getDefaultAdapter(this);
pendingIntent = PendingIntent.getActivity(this, 0, new Intent (this, getClass()).addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP), 0);
IntentFilter tagDetected = new IntentFilter (NfcAdapter.ACTION_TAG_DISCOVERED);
tagDetected.addCategory(Intent.CATEGORY_DEFAULT);
writeTagFilters = new IntentFilter[] {tagDetected };
}
private void write(String text, Tag myTag)throws IOException, FormatException {
NdefRecord[] records = {createRecord(text)};
NdefMessage message = new NdefMessage(records);
Ndef ndef = Ndef.get(myTag);
ndef.connect();
ndef.writeNdefMessage(message);
ndef.close();
}
private NdefRecord createRecord (String text) throws UnsupportedEncodingException {
String lang = "en";
byte[] textBytes = text.getBytes();
byte[] langBytes = lang.getBytes("US-ASCII");
int langLength = langBytes.length;
int textLength = textBytes.length;
byte[] payload = new byte [1+ langLength + textLength ];
payload[0] = (byte) langLength;
System.arraycopy(langBytes, 0, payload, 1, langLength);
System.arraycopy(langBytes, 0, payload, 1 + langLength, textLength);
NdefRecord recordNFC = new NdefRecord (NdefRecord.TNF_WELL_KNOWN, NdefRecord.RTD_TEXT, new byte[0], payload);
return recordNFC;
}
@Override
protected void onNewIntent(Intent intent){
if(NfcAdapter.ACTION_TAG_DISCOVERED.equals(intent.getAction())){
myTag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
Toast.makeText(this, "ok_detection" + myTag.toString(), Toast.LENGTH_LONG).show();
}
}
@Override
public void onPause(){
super.onPause();
WriteModeOff();
}
@Override
public void onResume(){
super.onResume();
WriteModeOn();
}
private void WriteModeOn(){
writeMode = true;
adapter.enableForegroundDispatch(this, pendingIntent, writeTagFilters, null);
}
private void WriteModeOff(){
writeMode = false;
adapter.disableForegroundDispatch(this);
}
}