protected void onActivityResult(int requestCode, int resultCode, Intent data) {

switch(requestCode) {

case IntentIntegrator.REQUEST_CODE: {

if (resultCode != RESULT_CANCELED) {

IntentResult scanResult = IntentIntegrator.parseActivityResult(requestCode, resultCode, data);

// apabila ada hasil dari pemindaian

if (scanResult != null) {

// ambil isi dari QRCode

upc = scanResult.getContents();



// tampilkan pada Alert Dialog

final AlertDialog.Builder builder=new AlertDialog.Builder(QRScanner.this);

builder.setTitle("Hasil Scan");

builder.setMessage(upc+"\n");

builder.setIcon(android.R.drawable.ic_dialog_alert);

// Tombol untuk simpan data

builder.setPositiveButton("Simpan", new OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {



QRScanner.this.finish(); //keluar dari scanning



Disini masalahnya gan

// masukkan hasil scan kedalam edittext(TxtScan)

EditText teks = (EditText) findViewById(R.id.TxtScan);

teks.setText(upc);



}

});

// Tombol untuk coba lagi/keluar

builder.setNegativeButton("Coba Lagi", new OnClickListener() {

@Override

public void onClick(DialogInterface dialog, int which) {

// TODO Auto-generated method stub

QRScanner.this.finish();

}



});

// tampilkan alert box

builder.show();

}

break;

}

}

}



}

package id.ryan.pelor.qrproject;



import android.os.Bundle;

import android.app.Activity;

import android.content.Intent;

//import android.view.Menu;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.EditText;



public class MainActivity extends Activity implements OnClickListener{



EditText TxtScan;

Button startButton;



@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.mainactivity);

startButton = (Button) findViewById(R.id.buttonStart);

startButton.setOnClickListener(this);



// EditText nya gan

TxtScan = (EditText) findViewById(R.id.TxtScan);

}



/*@Overrides

public boolean onCreateOptionsMenu(Menu menu) {

getMenuInflater().inflate(R.menu.mainactivity, menu);

return true;

}*/



@Override

public void onClick(View v) {

switch(v.getId())

{

case R.id.buttonStart : Intent i = new Intent(this, QRScanner.class);

startActivity(i);

}

}



}