信号强度监听

TelephonyManager Tel;
MyPhoneStateListener MyListener;

/* Update the listener, and start it */
MyListener = new MyPhoneStateListener();
Tel = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
Tel.listen(MyListener, PhoneStateListener.LISTEN_SIGNAL_STRENGTHS);

private class MyPhoneStateListener extends PhoneStateListener {
/* 从得到的信号强度,每个tiome供应商有更新 */
public void onSignalStrengthsChanged(SignalStrength signalStrength) {
super.onSignalStrengthsChanged(signalStrength);
Toast.makeText(getApplicationContext(),"Go to Firstdroid!!! GSM Cinr = "+ String.valueOf(signalStrength.getGsmSignalStrength()),Toast.LENGTH_SHORT).show();
}
};