http://www.pocketdigi.com/20110725/417.html
PS: 注意代码中直接通过broadcast注册监听器,没有像“小米锁屏代码”通过service注册监听器。
今天的程序可以实现电话状态改变时启动(来电、接听、挂断、拨打电话),但是暂时没法实现拨打电话时判断对方是否接听、转语音信箱等。Android在电话状态改变是会发送action为android.intent.action.PHONE_STATE的广播,而拨打电话时会发送action为android.intent.action.NEW_OUTGOING_CALL的广播,但是我看了下开发文档,暂时没发现有来电时的广播。知道这个就好办了,我们写个BroadcastReceiver用于接收这两个广播就可以了。
package com.pocketdigi.phonelistener; import android.app.Service; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.telephony.PhoneStateListener; import android.telephony.TelephonyManager; public class PhoneReceiver extends BroadcastReceiver { @Override public void onReceive(Context context, Intent intent) { // TODO Auto-generated method stub System.out.println("action"+intent.getAction()); if(intent.getAction().equals(Intent.ACTION_NEW_OUTGOING_CALL)){ //如果是去电(拨出) System.out.println("拨出"); }else{ //查了下android文档,貌似没有专门用于接收来电的action,所以,非去电即来电 System.out.println("来电"); TelephonyManager tm = (TelephonyManager)context.getSystemService(Service.TELEPHONY_SERVICE); tm.listen(listener, PhoneStateListener.LISTEN_CALL_STATE); //设置一个监听器 } } PhoneStateListener listener=new PhoneStateListener(){ @Override public void onCallStateChanged(int state, String incomingNumber) { // TODO Auto-generated method stub //state 当前状态 incomingNumber,貌似没有去电的API super.onCallStateChanged(state, incomingNumber); switch(state){ case TelephonyManager.CALL_STATE_IDLE: System.out.println("挂断"); break; case TelephonyManager.CALL_STATE_OFFHOOK: System.out.println("接听"); break; case TelephonyManager.CALL_STATE_RINGING: System.out.println("响铃:来电号码"+incomingNumber); //输出来电号码 break; } } }; }
要在AndroidManifest.xml注册广播接收器:
<receiver android:name=".PhoneReceiver"> <intent-filter> <action android:name="android.intent.action.PHONE_STATE"/> <action android:name="android.intent.action.NEW_OUTGOING_CALL" /> </intent-filter> </receiver>
<uses-permission android:name="android.permission.READ_PHONE_STATE"></uses-permission> <uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS"></uses-permission>