Android监听手机电话状态与发送邮件通知来电号码的方法(基于PhoneStateListene实现)

import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.telephony.PhoneStateListener;import android.telephony.TelephonyManager;import android.widget.TextView;public class A07Activity extends Activity { private TextView tv;//用来显示电话状态 private String emailReceiver="16*****85@qq.com"; //邮箱地址 private String emailSubject="你有来电信息，请查收！"; //作为邮件主题  /** Called when the activity is first created. */  @SuppressWarnings("static-access") @Override  public void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.main);    tv=(TextView)findViewById(R.id.tv);    PhoneCallListener pcl=new PhoneCallListener();    TelephonyManager tm=(TelephonyManager)getSystemService(TELEPHONY_SERVICE);    tm.listen(pcl, pcl.LISTEN_CALL_STATE);  }  public class PhoneCallListener extends PhoneStateListener{   public void onCallStateChanged(int state,String incomingNumber){ //需要重写onCallStateChanged方法   switch(state){   case TelephonyManager.CALL_STATE_IDLE:    tv.setText("CALL_STATE_IDLE");    break;   case TelephonyManager.CALL_STATE_OFFHOOK:    tv.setText("CALL_STATE_OFFHOOK");    break;   case TelephonyManager.CALL_STATE_RINGING:    tv.setText("来电号码"+incomingNumber); //如果有人打来电话，就会自动发送邮件到邮箱通知用户来电号码//设置来电时发送邮件    Intent i=new Intent(android.content.Intent.ACTION_SEND);    i.setType("plain/text");    i.putExtra(android.content.Intent.EXTRA_EMAIL, new String[]{emailReceiver.toString()});    i.putExtra(android.content.Intent.EXTRA_SUBJECT, emailSubject.toString());    i.putExtra(android.content.Intent.EXTRA_TEXT, "来电电话"+incomingNumber);    startActivity(Intent.createChooser(i, "来电信息"));    break;    default:    break;   }   super.onCallStateChanged(state, incomingNumber);   }  }}

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"  package="com.my.a07"  android:versionCode="1"  android:versionName="1.0" >  <uses-sdk android:minSdkVersion="10" />  <application    android:icon="@drawable/ic_launcher"    android:label="@string/app_name" >    <activity      android:name=".A07Activity"      android:label="@string/app_name" >      <intent-filter>        <action android:name="android.intent.action.MAIN" />        <category android:name="android.intent.category.LAUNCHER" />      </intent-filter>    </activity>  </application>  <uses-permission android:name="android.permission.SEND_SMS"></uses-permission>  <uses-permission android:name="android.permission.READ_CONTACTS"></uses-permission>  <uses-permission android:name="android.permission.READ_PHONE_STATE"></uses-permission></manifest>