AN4430 datasheet(23/42 Pages) STMICROELECTRONICS

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AN4430

How to create an Android Application for ST dual memories

In case developer expects his component is instantiate on ACTION_TAG_DISCOVERED

intent he must simply declare the following intent filter in the AndroidManifest.xml file:

2.5

Android NFC Activities implementation

As seen in previous sections, application is a set of components from different kind of family

(ie. activities, services,..). Components may be started from intents sent by the Android

System or from the application itself. In this case, the component known as the main one is

started by the application upon user’s start application request.

Once the activities has been declares with the associated intent filters in the

androidManifest.xml file activity has to be implemented by a corresponding Java Class. In

the studied case, developer has to implement the lifecycle activity callback, the NFC intent

handling functionalities, and finally the NFC message treatment.

Here is the provided implementation of the MainActvity automatically generated during

project creation, referenced in the AndroidManifest.xml file that developer has to upgrade to

support NFC feature.

2.5.1

Import NFC packages

In order to support NFC functionality, developer imports NFC android packages first. With

Eclipse IDE it can be automatically done while developer uses new objects.

<intent‐filter>

</intent‐filter>

package com.example.myfirstnfcapp;

import android.os.Bundle;

import android.app.Activity;

import android.view.Menu;

public class MainActivity extends Activity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

// Inflate the menu; this adds items to the action bar if it is present.

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

return true;

}

import android.nfc.NdefMessage;

import android.nfc.NfcAdapter;

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