记录Android7.0监控sim卡信号值

控制台打印效果

微信图片编辑_20230103115927.jpg

对象和常量

    private TelephonyManager mTelephonyManager;
    private static final int NETWORKTYPE_WIFI = 0;
    private static final int NETWORKTYPE_4G = 1;
    private static final int NETWORKTYPE_2G = 2;
    private static final int NETWORKTYPE_NONE = 3;

开始监听定义对象 顺序不可变

        getPhoneStateListener();//开始监听
        //获取telephonyManager
        mTelephonyManager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
        //监听信号强度
        mTelephonyManager.listen(mListener, PhoneStateListener.LISTEN_SIGNAL_STRENGTHS);

显示网络信号

    /**
     * 显示网络信号
     */
    public void getPhoneStateListener() {
        //开始监听
        Log.e("TAG", "getPhoneStateListener: ");
        mListener = new PhoneStateListener() {
            @SuppressLint("SetTextI18n")
            @Override
            public void onSignalStrengthsChanged(SignalStrength signalStrength) {
                super.onSignalStrengthsChanged(signalStrength);
                int gsmSignalStrength = signalStrength.getGsmSignalStrength();
                signal = gsmSignalStrength + "";
                //获取网络类型
                int netWorkType = getNetWorkType(MyApplication.getMyApplication());
                switch (netWorkType) {
                    case NETWORKTYPE_WIFI:
                        CommonUtil.showLog("wifi信号：" + gsmSignalStrength);
                        break;
                    case NETWORKTYPE_4G:
                        CommonUtil.showLog("4G信号：" + gsmSignalStrength);
                        break;
                    case NETWORKTYPE_NONE:
                        LogUtils.startLog("当前没有网络,信号强度为：" + gsmSignalStrength);
                        break;
                    case -1:
                        LogUtils.startLog("当前网络错误,信号强度为：" + gsmSignalStrength);
                        break;
                }
            }
        };
    }

判断网络类型

     /**
     * 判断网络类型
     */
    private static boolean isFastMobileNetwork(Context context) {
        TelephonyManager telephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
        if (telephonyManager.getNetworkType() == TelephonyManager.NETWORK_TYPE_LTE) {
            //这里只简单区分两种类型网络，认为4G网络为快速，但最终还需要参考信号值
            return true;
        }
        return false;
    }

判断是wifi还是sim卡

    /**
     * 判断是wifi还是sim卡
     */
    public static int getNetWorkType(Context context) {
        int mNetWorkType = -1;
        ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo networkInfo = manager.getActiveNetworkInfo();
        if (networkInfo != null && networkInfo.isConnected()) {
            String type = networkInfo.getTypeName();
            if (type.equalsIgnoreCase("WIFI")) {
                mNetWorkType = NETWORKTYPE_WIFI;
            } else if (type.equalsIgnoreCase("MOBILE")) {
                //返回是4G还是2G
                return isFastMobileNetwork(context) ? NETWORKTYPE_4G : NETWORKTYPE_2G;
                //我不管就是返回4G
                //return NETWORKTYPE_4G;
            }
        } else {
            mNetWorkType = NETWORKTYPE_NONE;//没有网络
        }
        return mNetWorkType;
    }

 protected void onResume() {
        super.onResume();
        mTelephonyManager.listen(mListener, PhoneStateListener.LISTEN_SIGNAL_STRENGTHS);
    }

 protected void onPause() {
        super.onPause();
        //用户不在当前页面时，停止监听
        mTelephonyManager.listen(mListener, PhoneStateListener.LISTEN_NONE);
    }