Question

This is the following code to retrieve phone number wwas able to get it on samsung 4.0.4, but getting below error on htc one v mobile..any clue?

public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

TextView textDeviceID = (TextView)findViewById(R.id.deviceid);


TelephonyManager telephonyManager = (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);

textDeviceID.setText(getMy10DigitPhoneNumber(telephonyManager));


}
private String getMyPhoneNumber(){
 TelephonyManager mTelephonyMgr;
 mTelephonyMgr = (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
 return mTelephonyMgr.getLine1Number();
 }

 private String getMy10DigitPhoneNumber(TelephonyManager telephonyManager){
 String s = getMyPhoneNumber();
 return s.substring(0);
 }
}

Answer 1

TelephonyManager mTelephonyMgr;
mTelephonyMgr = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
String mblNumber = mTelephonyMgr.getLine1Number();

Note: Dont forget to add READ_PHONE_STATE permission to be added inside the AndroidManifest.xml file:

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