Android Service（二）

package net.blogjava.mobile;

import android.app.Activity;
import android.content.Context;
import android.media.AudioManager;
import android.os.Bundle;
import android.provider.MediaStore.Audio;
import android.telephony.PhoneStateListener;
import android.telephony.ServiceState;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.widget.Toast;

public class Main extends Activity
{
public class MyPhoneCallListener extends PhoneStateListener
{

@Override
public void onCallStateChanged(int state, String incomingNumber)
{
AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
;
switch (state)
{
case TelephonyManager.CALL_STATE_IDLE:
audioManager.setRingerMode(AudioManager.RINGER_MODE_NORMAL);
break;
case TelephonyManager.CALL_STATE_RINGING:
if ("12345678".equals(incomingNumber))
{
audioManager
.setRingerMode(AudioManager.RINGER_MODE_SILENT);
}
break;

}
super.onCallStateChanged(state, incomingNumber);
}

}

@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
TelephonyManager tm = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
MyPhoneCallListener myPhoneCallListener = new MyPhoneCallListener();
tm.listen(myPhoneCallListener, PhoneStateListener.LISTEN_CALL_STATE);

}
}