Here you can find the source of getPhoneNumber(Context context)
public static String getPhoneNumber(Context context)
//package com.java2s; /**//from w w w . j a v a2 s. co m * Copyright 2014 Bruce Wu. * <p/> * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * <p/> * http://www.apache.org/licenses/LICENSE-2.0 * <p/> * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import android.content.Context; import android.telephony.TelephonyManager; public class Main { public static String getPhoneNumber(Context context) { TelephonyManager tm = (TelephonyManager) context .getSystemService(Context.TELEPHONY_SERVICE); return tm.getLine1Number(); } }