首次更新后停止监听器

Question

我想知道我目前在Android上的手机信号塔的信号强度.经过一些研究后我发现,我应该使用一个PhoneStateListener监听更新来获取价值(陌生的方式来做恕我直言).

所以我想在得到信号后立即得到信号,然后停止听众.这是我使用的代码:

// object containing the information about the cell
MyGSMCell myGSMCell = new MyGSMCell(cid,lac);
// object listening for the signal strength
new GetGsmSignalStrength(myGSMCell, context);

...

public class GetGsmSignalStrength {

    private MyGSMCell callback;
    private TelephonyManager telMan;
    private MyPhoneStateListener myListener;

    public GetGsmSignalStrength(MyGSMCell callback, Context context) {
            this.callback = callback;
            this.myListener = new MyPhoneStateListener();
            this.telMan = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
            this.telMan.listen(this.myListener, PhoneStateListener.LISTEN_SIGNAL_STRENGTHS);

    }

    private class MyPhoneStateListener extends PhoneStateListener
    {
            public void onSignalStrengthsChanged(SignalStrength signalStrength)
            {
                    // get the strength  
                    super.onSignalStrengthsChanged(signalStrength);
                    // return it to the MyGSMCell object to set the value
                    callback.setStrength(signalStrength.getGsmSignalStrength());
            }
    }
}

我希望一发一个就停止听众 setStrength(value)

任何的想法 ？

谢谢

Answer 1

来自文档:

要取消注册侦听器,请传递侦听器对象并将events参数设置为LISTEN_NONE(0).

所以,将它添加到你的监听器:

telMan.listen(myListener, PhoneStateListener.LISTEN_NONE);