AndroidManifest.xml

1. 注冊广播接收者
2. 加入权限

activity_main.xml

MainActivity.java

package com.example.android_ipphone;import android.app.Activity;import android.content.Context;import android.content.SharedPreferences;import android.content.SharedPreferences.Editor;import android.os.Bundle;import android.view.Menu;import android.view.MenuItem;import android.view.View;import android.widget.EditText;public class MainActivity extends Activity {	private EditText et_ip;	@Override	protected void onCreate(Bundle savedInstanceState) {		super.onCreate(savedInstanceState);		setContentView(R.layout.activity_main);		et_ip = (EditText) findViewById(R.id.editText1);	}	public void setIp(View v) {		// 获取你要设置的ip		String ipnum = et_ip.getText().toString().trim();		// 保存在哪里		SharedPreferences sp = getSharedPreferences("csdn",				Context.MODE_PRIVATE);		Editor editor = sp.edit();		editor.putString("ip", ipnum).commit();	}}

CallBreadcastReceiver.java

package com.example.android_ipphone.receiver;import android.content.BroadcastReceiver;import android.content.Context;import android.content.Intent;import android.content.SharedPreferences;public class CallBreadcastReceiver extends BroadcastReceiver {	@Override	public void onReceive(Context context, Intent intent) {		// 获取设置中的ip保存SharedPreference对象		SharedPreferences sp = context.getSharedPreferences("csdn",				Context.MODE_PRIVATE);		// 获取保存外拨电话ip值		String ipNum = sp.getString("ip", "");		// 改变你拨打的电话信息		// 获取电话号码		String phoneNum = getResultData();		// 改变后的电话号码		String data = ipNum + phoneNum;		// 设置返回的数据		setResultData(data);		//当前的BreadcastReceiver		abortBroadcast();	}}