android 修改拨出电话号码

public class OutGoingCallReceiver extends BroadcastReceiver{


    public void onReceive(Context content, Intent intent) {

        //获取当前拨打的号码
        String resultData = getResultData();
        //判断当前拨打的号码是否是长途
        if(resultData.startsWith("0")){
            setResultData("0396"+resultData);
        }
    }
}

拨打电话和修改电话号码是并行事件，所以为什么能反过来修改拨打出去的号码，难道拨号器还会等待程序修改完在拨打电话吗

https://blog.csdn.net/lb8942334/article/details/52223129