<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

    package="com.example.ipdail"

    android:versionCode="1"

    android:versionName="1.0" >

    <uses-sdk

        android:minSdkVersion="8"

        android:targetSdkVersion="17" />

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

    <application

        android:allowBackup="true"

        android:icon="@drawable/ic_launcher"

        android:label="@string/app_name"

        android:theme="@style/AppTheme" >

        <activity

            android:name=".MainActivity"

            android:label="@string/app_name" >

            <intent-filter>

                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />

            </intent-filter>

        </activity>

        <receiver android:name=".OutCallReceiver">

            <intent-filter>

                <action android:name="android.intent.action.NEW_OUTGOING_CALL" />

            </intent-filter>

        </receiver>

    </application>

</manifest>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

      android:orientation="vertical"

    tools:context="com.example.ipdail.MainActivity" >

    <TextView

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:text="请输入要设置ip电话" />

    <EditText

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:id="@+id/et_ip"

        android:inputType="phone"

         />

    <Button

        android:onClick="click"

        android:layout_width="fill_parent"

        android:layout_height="wrap_content"

        android:text="设置"

         />

</LinearLayout>

package com.example.ipdail;

import android.content.SharedPreferences;

import android.content.SharedPreferences.Editor;

import android.os.Bundle;

import android.support.v7.app.ActionBarActivity;

import android.text.TextUtils;

import android.view.View;

import android.widget.EditText;

import android.widget.Toast;

public class MainActivity extends ActionBarActivity {

    private EditText et_ip;

    private SharedPreferences sp;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        et_ip = (EditText)findViewById(R.id.et_ip);

        sp = getSharedPreferences("ip", MODE_PRIVATE);

        String ip = sp.getString("ip", "");

        et_ip.setText(ip);

    }

    public void click(View view)

    {

        String ip = et_ip.getText().toString().trim();

        if(TextUtils.isEmpty(ip))

        {

            Toast.makeText(this, "设置ip不能为空", 0).show();

            return;

        }

        Editor editor = sp.edit();

        editor.putString("ip", ip);

        editor.commit();

        Toast.makeText(this, "设置成功", 0).show();

    }

}

package com.example.ipdail;

import android.content.BroadcastReceiver;

import android.content.Context;

import android.content.Intent;

import android.content.SharedPreferences;

public class OutCallReceiver extends BroadcastReceiver {

    //当有广播事假产生的时候就会执行onreceive方法

    @Override

    public void onReceive(Context context, Intent intent) {

        //获取外拨的电话号码

        String number = getResultData();

        //替换掉这个号码

        SharedPreferences sp = context.getSharedPreferences("ip", Context.MODE_PRIVATE);

        String ip = sp.getString("ip", "");

        String newnumber = ip + number;

        //设置外拨电话号码

        setResultData(newnumber);

    }

}