my application basically just taking the Tag ID of any Tags 

I want the application to run without asking the user what application to use

Directly from the same app

I found a tutorial in internet on how to develop an NFC writer and reader 

but every time I tap the system will ask the user to choose an application (EVEN if I closed the application)

because I'm going to create different activities for different implementation so by using the same method Android System will ask the user to choose many applications (they all are my app Activities)

this is my Code:-

```
AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest package="com.nfc.test"
    android:versionCode="1"
    android:versionName="1.0" xmlns:android="http://schemas.android.com/apk/res/android">

    <uses-sdk
        android:minSdkVersion="16"
        android:targetSdkVersion="19" />

    <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.CAMERA" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.NFC" />

    <uses-feature android:name="android.hardware.camera" />
    <uses-feature android:name="android.hardware.camera.autofocus" />
    <uses-feature
        android:name="android.hardware.nfc"
        android:required="true" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".MainActivity"
            android:screenOrientation="portrait" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>

        </activity>

        <activity android:name=".TapToRegisterTag" android:screenOrientation="portrait">
            <intent-filter>
                <action android:name="android.nfc.action.TECH_DISCOVERED" />
            </intent-filter>
            <meta-data
                android:name="android.nfc.action.TECH_DISCOVERED"
                android:resource="@xml/nfc_tech_filter" />
        </activity>

        <!-- Other Activities -->

    </application>

</manifest>

```

TapToRegisterTag.java

```
package com.nfc.test;

import android.app.Activity;
import android.app.PendingIntent;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.IntentFilter.MalformedMimeTypeException;
import android.nfc.NfcAdapter;
import android.nfc.Tag;
import android.nfc.tech.Ndef;
import android.os.Bundle;
import android.util.Log;
import android.view.Window;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;

public class TapToRegisterTag extends Activity{

    // Prepare NFC Tag variables
    Tag myTag;
    String tagID;
    NfcAdapter mNfcAdapter;
    public static final String MIME_TEXT_PLAIN = "text/plain";
    public static final String TAG = "NfcDemo";

    ImageView logo;
    TextView txt;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        setContentView(R.layout.register_tag_layout);

        logo = (ImageView)findViewById(R.id.imageView2);
        txt = (TextView)findViewById(R.id.textView);

        // prepare NFC
        mNfcAdapter = NfcAdapter.getDefaultAdapter(this);

        if (mNfcAdapter == null) {
            // Stop here, we definitely need NFC
            Toast.makeText(this, "This device doesn't support NFC.", Toast.LENGTH_LONG).show();
            finish();
            return;

        }

        if (!mNfcAdapter.isEnabled()) {
            Toast.makeText(this, "NFC is disabled.", Toast.LENGTH_LONG).show();
        } else {
            Toast.makeText(this, "NFC is Enabled.", Toast.LENGTH_LONG).show();
        }

        handleIntent(getIntent());
    }

    @Override
    protected void onResume() {
        // TODO Auto-generated method stub
        super.onResume();

        /**
         * It's important, that the activity is in the foreground (resumed). Otherwise
         * an IllegalStateException is thrown. 
         */
        setupForegroundDispatch(this, mNfcAdapter);
        try{
            this.myTag = (Tag) getIntent().getParcelableExtra(NfcAdapter.EXTRA_TAG);
            this.tagID = OnetapActivity.bytesToHex(myTag.getId());
            Toast.makeText(this, "Tag ID: \n" + tagID, Toast.LENGTH_LONG).show();
        }catch (Exception ex){
            Toast.makeText(this, ex.getMessage(), Toast.LENGTH_LONG).show();
        }
    }

    @Override
    protected void onPause() {

        stopForegroundDispatch(this, mNfcAdapter);

        super.onPause();
    }

    @Override
    protected void onNewIntent(Intent intent) { 

        handleIntent(intent);

    }

    private void handleIntent(Intent intent) {
        // TODO: handle Intent

        String action = intent.getAction();
        if (NfcAdapter.ACTION_NDEF_DISCOVERED.equals(action)) {

            String type = intent.getType();
            if (MIME_TEXT_PLAIN.equals(type)) {

                //new NdefReaderTask().execute(tag);
                try{
                    this.myTag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
                    this.tagID = OnetapActivity.bytesToHex(this.myTag.getId());
                    Toast.makeText(this, "Tag ID: \n" + tagID, Toast.LENGTH_LONG).show();
                }catch (Exception ex){
                    Toast.makeText(this, ex.getMessage(), Toast.LENGTH_LONG).show();
                }

            } else {
                Log.d(TAG, "Wrong mime type: " + type);
            }
        } else if (NfcAdapter.ACTION_TECH_DISCOVERED.equals(action)) {

            // In case we would still use the Tech Discovered Intent
            this.myTag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
            String[] techList = this.myTag.getTechList();
            String searchedTech = Ndef.class.getName();

            for (String tech : techList) {
                if (searchedTech.equals(tech)) {
                    //new NdefReaderTask().execute(tag);

                     try{
                         myTag = intent.getParcelableExtra(NfcAdapter.EXTRA_TAG);
                         //this.myTag = (Tag) getIntent().getParcelableExtra(NfcAdapter.EXTRA_TAG);
                         this.tagID = OnetapActivity.bytesToHex(myTag.getId());
                         Toast.makeText(this, "Tag ID: \n" + tagID, Toast.LENGTH_LONG).show();
                     }catch (Exception ex){
                         Toast.makeText(this, ex.getMessage(), Toast.LENGTH_LONG).show();
                     }

                    break;
                }
            }

        }

    }

    public static void setupForegroundDispatch(final Activity activity, NfcAdapter adapter) {
        final Intent intent = new Intent(activity.getApplicationContext(), activity.getClass());
        intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);

        final PendingIntent pendingIntent = PendingIntent.getActivity(activity.getApplicationContext(), 0, intent, 0);

        IntentFilter[] filters = new IntentFilter[1];
        String[][] techList = new String[][]{};

        // Notice that this is the same filter as in our manifest.
        filters[0] = new IntentFilter();
        filters[0].addAction(NfcAdapter.ACTION_NDEF_DISCOVERED);
        filters[0].addCategory(Intent.CATEGORY_DEFAULT);
        try {
            filters[0].addDataType(MIME_TEXT_PLAIN);
        } catch (MalformedMimeTypeException e) {
            throw new RuntimeException("Check your mime type.");
        }

        adapter.enableForegroundDispatch(activity, pendingIntent, filters, techList);
    }

    public static void stopForegroundDispatch(final Activity activity, NfcAdapter adapter) {
        adapter.disableForegroundDispatch(activity);
    }

}

```

@xml/nfc\_tech\_filter.xml

```
<?xml version="1.0" encoding="utf-8"?>
<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
    <tech-list>
        <tech>android.nfc.tech.Ndef</tech>
        <!-- class name -->
    </tech-list>
</resources>

<!-- 
<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
    <tech-list>
        <tech>android.nfc.tech.IsoDep</tech>
        <tech>android.nfc.tech.NfcA</tech>
        <tech>android.nfc.tech.NfcB</tech>
        <tech>android.nfc.tech.NfcF</tech>
        <tech>android.nfc.tech.NfcV</tech>
        <tech>android.nfc.tech.Ndef</tech>
        <tech>android.nfc.tech.NdefFormatable</tech>
        <tech>android.nfc.tech.MifareClassic</tech>
        <tech>android.nfc.tech.MifareUltralight</tech>
    </tech-list>
</resources>
-->

```