本文实例讲述了Android监听手机电话状态与发送邮件通知来电号码的方法。分享给大家供大家参考，具体如下：
在android中可以用PhoneStateListener来聆听手机电话状态（比如待机、通话中、响铃等）。本例是通过它来监听手机电话状态，当手机来电时，通过邮件将来电号码发送到用户邮箱的例子。具体程序如下：
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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);
}
}
}
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其中还需要在AndroidManifest.xml中添加几个相应的权限：
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<?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>
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希望本文所述对大家Android程序设计有所帮助。