Android Telephony

The Android telephony API provides a way to monitor basic phone information, such as
the network type, connection state, and utilities for manipulating phone number strings.


Some of the telephony information is permission protected, so access must be declared in the AndroidManifest XML file:

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

The main activity code is given below :

package com.jitesh.hardware.telephony;

import android.app.Activity;
import android.os.Bundle;
import android.telephony.TelephonyManager;
import android.widget.TextView;
public class TelephonyApp extends Activity {
TextView tv1;
TelephonyManager telManager;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
tv1 =(TextView) findViewById(R.id.tv1);
telManager = (TelephonyManager)
getSystemService(TELEPHONY_SERVICE);
StringBuilder sb = new StringBuilder();
sb.append("deviceid:")
.append(telManager.getDeviceId()).append("\n");
sb.append("device Software Ver:")
.append(telManager.getDeviceSoftwareVersion()).append("\n");
sb.append("Line number:")
.append(telManager.getLine1Number()).append("\n");
sb.append("Network Country ISO:")
.append(telManager.getNetworkCountryIso()).append("\n");
sb.append("Network Operator:")
.append(telManager.getNetworkOperator()).append("\n");
sb.append("Network Operator Name:")
.append(telManager.getNetworkOperatorName()).append("\n");
sb.append("Sim Country ISO:")
.append(telManager.getSimCountryIso()).append("\n");
sb.append("Sim Operator:")
.append(telManager.getSimOperator()).append("\n");
sb.append("Sim Operator Name:")
.append(telManager.getSimOperatorName()).append("\n");
sb.append("Sim Serial Number:")
.append(telManager.getSimSerialNumber()).append("\n");
sb.append("Subscriber Id:")
.append(telManager.getSubscriberId()).append("\n");
sb.append("Voice Mail Alpha Tag:")
.append(telManager.getVoiceMailAlphaTag()).append("\n");
sb.append("Voice Mail Number:")
.append(telManager.getVoiceMailNumber()).append("\n");
tv1.setText(sb.toString());
}
}

res/layout/main.xml


<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:id="@+id/tv1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
</LinearLayout>