In this tutorial how to use TelephonyManager Services in Android Application is shown.<\/p>\n
Telephony Manager provides access of information about the telephony services on the device.<\/p>\n
Applications can use the methods in this class to determine telephony services and states,as well as to access some types of subscriber information.<\/p>\n
Applications can also register a listener to receive notification of telephony state changes.<\/p>\n
You do not instantiate this class directly, instead, you retrieve a reference to an instance through Context.getSystemService(Context.TELEPHONY_SERVICE);<\/p>\n
To work with TelephonyManager and to read the phone details we need to add this permission statement in AndroidManifest.xml<\/p>\n
<uses-permission android:name=”android.permission.READ_PHONE_STATE”\/><\/p>\n
Code:<\/p>\n
activity_main.xml<\/p>\n
<RelativeLayout xmlns:android=”http:\/\/schemas.android.com\/apk\/res\/android”
\nxmlns:tools=”http:\/\/schemas.android.com\/tools”
\nandroid:layout_width=”match_parent”
\nandroid:layout_height=”match_parent”
\nandroid:paddingBottom=”@dimen\/activity_vertical_margin”
\nandroid:paddingLeft=”@dimen\/activity_horizontal_margin”
\nandroid:paddingRight=”@dimen\/activity_horizontal_margin”
\nandroid:paddingTop=”@dimen\/activity_vertical_margin”
\ntools:context=”.MainActivity” ><\/p>\n
<Button
\nandroid:id=”@+id\/button1″
\nandroid:layout_width=”wrap_content”
\nandroid:layout_height=”wrap_content”
\nandroid:layout_alignParentTop=”true”
\nandroid:layout_centerHorizontal=”true”
\nandroid:layout_marginTop=”76dp”
\nandroid:onClick=”onSubmit”
\nandroid:text=”Get Info” \/><\/p>\n
<TextView
\nandroid:id=”@+id\/info”
\nandroid:layout_width=”wrap_content”
\nandroid:layout_height=”wrap_content”
\nandroid:layout_below=”@+id\/button1″
\nandroid:layout_centerHorizontal=”true”
\nandroid:layout_marginTop=”47dp”
\nandroid:text=”Mobile Information” \/><\/p>\n
<\/RelativeLayout><\/p>\n
MainActivity.java<\/p>\n
package com.example.demo;<\/p>\n
import android.os.Bundle;
\nimport android.app.Activity;
\nimport android.content.Context;
\nimport android.telephony.TelephonyManager;
\nimport android.view.Menu;
\nimport android.view.View;
\nimport android.widget.TextView;<\/p>\n
public class MainActivity extends Activity{<\/p>\n
TextView tv;<\/p>\n
@Override
\nprotected void onCreate(Bundle savedInstanceState) {
\nsuper.onCreate(savedInstanceState);
\nsetContentView(R.layout.activity_main);
\ntv=(TextView)findViewById(R.id.info);
\n}<\/p>\n
public void onSubmit(View v)
\n{
\nTelephonyManager tm=(TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
\nint callstate=tm.getCallState();
\nString callstat=””;
\nswitch(callstate)
\n{
\ncase TelephonyManager.CALL_STATE_IDLE:
\ncallstat=”Call State: Phone is idle\\n”;
\nbreak;
\ncase TelephonyManager.CALL_STATE_OFFHOOK:
\ncallstat=”Call State: Phone is in use\\n”;
\nbreak;
\ncase TelephonyManager.CALL_STATE_RINGING:
\ncallstat=”Call State: Phone is ringing\\n”;
\nbreak;
\n}
\nString opname=”\\nOperator ID:”+” “+tm.getNetworkOperator();
\nopname=opname+”\\nOperator Name:”+” “+tm.getNetworkOperatorName();<\/p>\n
int phoneType=tm.getPhoneType();
\nString ptype=””;
\nswitch(phoneType)
\n{
\ncase TelephonyManager.PHONE_TYPE_CDMA:
\nptype=”\\nPhone Type: CDMA\\n”;
\nbreak;
\ncase TelephonyManager.PHONE_TYPE_GSM:
\nptype=”\\nPhone Type: GSM\\n”;
\nbreak;
\ncase TelephonyManager.PHONE_TYPE_SIP:
\nptype=”\\nPhone Type: SIP\\n”;
\nbreak;
\ncase TelephonyManager.PHONE_TYPE_NONE:
\nptype=”\\nPhone Type: NONE\\n”;
\nbreak;
\n}<\/p>\n
boolean isRoaming=tm.isNetworkRoaming();
\nString pDetails=””;
\nif(isRoaming)
\n{
\npDetails=”Roaming : Yes\\n”;
\n}
\nelse
\n{
\npDetails=”Roaming : No\\n”;
\n}<\/p>\n
int sim=tm.getSimState();
\nString sstate=””;
\nswitch(sim)
\n{
\ncase TelephonyManager.SIM_STATE_ABSENT:
\nsstate=”Sim State: Absent\\n”;
\nbreak;
\ncase TelephonyManager.SIM_STATE_NETWORK_LOCKED:
\nsstate=”Sim State: Network Locked\\n”;
\nbreak;
\ncase TelephonyManager.SIM_STATE_PIN_REQUIRED:
\nsstate=”Sim State: Pin Required\\n”;
\nbreak;
\ncase TelephonyManager.SIM_STATE_PUK_REQUIRED:
\nsstate=”Sim State: Puk Required\\n”;
\nbreak;
\ncase TelephonyManager.SIM_STATE_READY:
\nsstate=”Sim State: Ready\\n”;
\nbreak;
\ncase TelephonyManager.SIM_STATE_UNKNOWN:
\nsstate=”Sim State: Unknown\\n”;
\nbreak;
\n}
\ntv.setText(callstat+opname+ptype+pDetails+sstate);
\n}<\/p>\n
@Override
\npublic boolean onCreateOptionsMenu(Menu menu) {
\n\/\/Inflate the menu; this adds items to the action bar if it is present.
\ngetMenuInflater().inflate(R.menu.main, menu);
\nreturn true;
\n}
\n}<\/p>\n
AndroidManifest.xml<\/p>\n
<?xml version=”1.0″ encoding=”utf-8″?>
\n<manifest xmlns:android=”http:\/\/schemas.android.com\/apk\/res\/android”
\npackage=”com.example.demo”
\nandroid:versionCode=”1″
\nandroid:versionName=”1.0″ ><\/p>\n
<uses-sdk
\nandroid:minSdkVersion=”8″
\nandroid:targetSdkVersion=”17″ \/>
\n<uses-permission android:name=”android.permission.READ_PHONE_STATE”\/><\/p>\n
<application
\nandroid:allowBackup=”true”
\nandroid:icon=”@drawable\/ic_launcher”
\nandroid:label=”@string\/app_name”
\nandroid:theme=”@style\/AppTheme” >
\n<activity
\nandroid:name=”com.example.demo.MainActivity”
\nandroid:label=”@string\/app_name” >
\n<intent-filter>
\n<action android:name=”android.intent.action.MAIN” \/><\/p>\n
<category android:name=”android.intent.category.LAUNCHER” \/>
\n<\/intent-filter>
\n<\/activity>
\n<\/application><\/p>\n
<\/manifest><\/p>\n