关于android监听网路状态的代码

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原创最新推荐文章于 2026-02-17 12:47:56 发布 954 阅读 AI 写同款· GEO 优化 ›

Android之TelephonyManager类的方法详解，移动端跨平台开发现状 info.getPsc(); //获取邻居小区信号强度 info.getRssi(); } //返回ISO标准的国家码，即国际长途区号 tm.getNetworkCountryIso(); //返回MCC+MNC代码 (SIM卡运营商国家代码和运营商网络代码)(IMSI) tm.getNetworkOperator(); //返回移动网络运营商的名字(SPN) tm.getNetworkOperatorName(); /** * 获取网络类型 * * NETWORK_TYPE_CDMA 网络类型为CDMA 阅读详情

这里写出了监听网路状态wifi 2 3 4 g 的所有网路监听
- 需要添加权限的！！！

  <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
    <uses-permission android:name="android.permission.CHANGE_NETWORK_STATE"/>
    <uses-permission android:name="android.permission.INTERNET"/>

public interface NetStateListener {

    /**
     * 当网络类型发生改变的时候回调
     *
     * @param type 网络类型
     */
    public void onNetworkState(NetStateController.NetworkType type);
}

然后下面就是网路状态变化的管理者，比较多，不过拿去复制粘贴救可以用了！！

/**
 * 网络改变监听管理类
 * 该类去注册BroadReceiver来监听网络的改变,不需要再在所有需要监听网络变化的类去亲自注册broadreceiver.
 * 只需要实现NetStateListener接口,然后调用该类的addOnNetworkStateListener();即可在重写的onNetworkState方法中获取到最新的网络状态
 * 如果不需要再继续监听 调用removeOnNetworkStateListener() 即可.
 * @author bb
 *
 */
public class NetStateController {

    private final static String TAG = NetStateController.class.getSimpleName();
    private final static boolean DEBUG = true;
    private static ArrayList<NetworkType> mNetworkTypes = new ArrayList<NetworkType>();
    /**
     * 在网络状态发生变化的地方调用 {@link OnNetworkStateListener#onNetworkState(NetworkType)}
     * 方法
     */
    /**
     * 观察者list
     */
    private ArrayList<NetStateListener> mNetworkStateListeners = new ArrayList<NetStateListener>();

    private static NetStateController manager; 
    private static Context mContext;

    private NetStateController() {
    };

    /**
         * 获取{@link NetStateController}唯一实例
         *
         * @return 返回{@link NetStateController}唯一实例
         */
    public static NetStateController getInstance(Context context) {
        if (manager == null) {
            synchronized (NetStateController.class) {
                if (manager == null) {
                    manager = new NetStateController();
                    if(context!=null)
                        mContext = context.getApplicationContext();
                }
                return manager;
            }
        }
        return manager;

    }

    /**
     * 启动网络类型监听,startService
     */
    private void startNetworkTypeService() {
        if (DEBUG) {
            Log.i(TAG, "startNetworkTypeService()");
        }
        if(mContext==null)
            throw new NullPointerException("mContext is null");
        IntentFilter mFilter = new IntentFilter();
        mFilter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
        mContext.registerReceiver(mReceiver, mFilter);

    }

    private void stopNetworkTypeService() {
        if (DEBUG) {
            Log.i(TAG, "stopNetworkTypeService");
        }
        if(mContext==null)
            throw new NullPointerException("mContext is null");
        if (mReceiver != null) {
            try {
                mContext.unregisterReceiver(mReceiver);
            } catch (Exception e) {
                Log.w(TAG, "Receiver not registered ");
            }
        }
    }

    /**
     * 往观察者队列中添加观察者
     */
    public void addOnNetworkStateListener(NetStateListener mListener) { 
        if (mNetworkStateListeners != null) {
            // 如果为0 则调用启动系统上下文 注册全局监听。
            if (mNetworkStateListeners.size() == 0)
                startNetworkTypeService();
            if (mNetworkStateListeners.indexOf(mListener) == -1) {
                mNetworkStateListeners.add(mListener);
            }

        }
    }

    /**
     * 移除一个观察者
     */
    public void removeOnNetworkStateListener(NetStateListener mListener) {
        if (mNetworkStateListeners != null) {
            int index = mNetworkStateListeners.indexOf(mListener);
            if (index >= 0) {
                mNetworkStateListeners.remove(index);
                if (mNetworkStateListeners.size() == 0){
                    stopNetworkTypeService();
                    mNetworkTypes.clear();
                }
            }

        }
    }

    /**
     * 移除全部观察者
     * 
     */
    public void removeAllListener() {
        if (mNetworkStateListeners != null) {
            mNetworkStateListeners.clear();
            stopNetworkTypeService();
        }
    }

    /**
     * 介乎
     */
    /**
     * 枚举网络类型</br> NET_NO：没有网络</br> NET_2G：2g网络</br> NET_3G：3g网络</br>
     * NET_4G：4g网络</br> NET_WIFI：wifi</br> NET_UNKNOWN：未知网络
     */
    public enum NetworkType {
        NET_NO, NET_WIFI, NET_2G, NET_3G, NET_4G, NET_UNKNOWN;
    }
    /**
     * 网络类型 主要用来区分 外网(包括普通wifi和移动网络),i-Liaoning,以及CMMB. 新增了本地类型
     */
    public enum ChannelType{
        Public_Type,ILiaoning_Type,CMMB_TYPE,NO_TYPE,UNKNOWN_TYPE,LOCAL_TYPE;
    }

    /**
     * 判断当前是否网络连接
     * 

     * @return 状态码
     */
    public static NetworkType isConnected(Context context) {
        ConnectivityManager mConnectivityManager = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo ni = mConnectivityManager.getActiveNetworkInfo();

        NetworkType stateCode = NetworkType.NET_NO;
        if (ni != null && ni.isConnectedOrConnecting() && ni.isAvailable()) {
            switch (ni.getType()) {
            case ConnectivityManager.TYPE_WIFI:
                stateCode = NetworkType.NET_WIFI;
                break;
            case ConnectivityManager.TYPE_MOBILE:
                switch (ni.getSubtype()) { 
                case TelephonyManager.NETWORK_TYPE_GPRS: // 联通2g
                case TelephonyManager.NETWORK_TYPE_CDMA: // 电信2g
                case TelephonyManager.NETWORK_TYPE_EDGE: // 移动2g
                case TelephonyManager.NETWORK_TYPE_1xRTT:
                case TelephonyManager.NETWORK_TYPE_IDEN:
                    stateCode = NetworkType.NET_2G;
                    break;
                case TelephonyManager.NETWORK_TYPE_EVDO_A: // 电信3g
                case TelephonyManager.NETWORK_TYPE_UMTS:
                case TelephonyManager.NETWORK_TYPE_EVDO_0:
                case TelephonyManager.NETWORK_TYPE_HSDPA:
                case TelephonyManager.NETWORK_TYPE_HSUPA:
                case TelephonyManager.NETWORK_TYPE_HSPA:
                case TelephonyManager.NETWORK_TYPE_EVDO_B:
                //NETWORK_TYPE_EHRPD
                case 14:
                //NETWORK_TYPE_HSPAP
                case 15:
                    stateCode = NetworkType.NET_3G;
                    break;
                //NETWORK_TYPE_LTE
                case 13:
                    stateCode = NetworkType.NET_4G;
                    break;
                default:
                    stateCode = NetworkType.NET_UNKNOWN;
                }
                break;
            default:
                stateCode = NetworkType.NET_UNKNOWN;
            }
        }
        return stateCode;
    }

   /**
    *  获得当前的类型
    *  
    */
    public static String getTheChannelType(Context context){
        ConnectivityManager mConnectivityManager = (ConnectivityManager) context
                .getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo ni = mConnectivityManager.getActiveNetworkInfo();
        ChannelType mChannelType = ChannelType.UNKNOWN_TYPE;
        if (ni != null && ni.isConnectedOrConnecting() && ni.isAvailable()) {
            switch (ni.getType()) {
            case ConnectivityManager.TYPE_WIFI:
                WifiManager mWifiManager =(WifiManager) context.getSystemService(Context.WIFI_SERVICE);
                WifiInfo mWifiInfo = null;
                if (mWifiManager != null) {
                   mWifiInfo = mWifiManager.getConnectionInfo();
                   String wifiName = mWifiInfo.getSSID();
                   if(wifiName.contains("i-LiaoNing")){
                       mChannelType = ChannelType.ILiaoning_Type;
                   }else if (wifiName.contains("CMMB")) {
                      mChannelType = ChannelType.CMMB_TYPE;
                   } else {
                    mChannelType = ChannelType.Public_Type;
                   }
                }  
                break;
            case ConnectivityManager.TYPE_MOBILE:
                switch (ni.getSubtype()) {
                case TelephonyManager.NETWORK_TYPE_GPRS: // 联通2g
                case TelephonyManager.NETWORK_TYPE_CDMA: // 电信2g
                case TelephonyManager.NETWORK_TYPE_EDGE: // 移动2g
                case TelephonyManager.NETWORK_TYPE_1xRTT:
                case TelephonyManager.NETWORK_TYPE_IDEN:
                    mChannelType = ChannelType.Public_Type;
                    break;
                case TelephonyManager.NETWORK_TYPE_EVDO_A: // 电信3g
                case TelephonyManager.NETWORK_TYPE_UMTS:
                case TelephonyManager.NETWORK_TYPE_EVDO_0:
                case TelephonyManager.NETWORK_TYPE_HSDPA:
                case TelephonyManager.NETWORK_TYPE_HSUPA:
                case TelephonyManager.NETWORK_TYPE_HSPA:
                case TelephonyManager.NETWORK_TYPE_EVDO_B:
                //NETWORK_TYPE_EHRPD
                case 14:
                //NETWORK_TYPE_HSPAP
                case 15:
                    mChannelType = ChannelType.Public_Type;
                    break;
                //NETWORK_TYPE_LTE
                case 13:
                    mChannelType = ChannelType.Public_Type;
                    break;
                default:
                    mChannelType = ChannelType.UNKNOWN_TYPE;
                    break; 
              }

            } 
          return mChannelType.name();
        }else {
            mChannelType = ChannelType.NO_TYPE;
            return mChannelType.name();
        }
    }

    /**
     * 监听网络类型改变的广播
     */
    private BroadcastReceiver mReceiver = new BroadcastReceiver() {

        @Override
        public void onReceive(Context context, Intent intent) {
            String action = intent.getAction();
            if (action.equals(ConnectivityManager.CONNECTIVITY_ACTION)) {

                NetworkType netState = isConnected(context);
                synchronized (NetStateController.class) {
                    mNetworkTypes.add(netState); 
                    if (mNetworkStateListeners != null&&whetherOrNotoprocess()) {
                        for (NetStateListener listener : mNetworkStateListeners) {
                            listener.onNetworkState(netState);
                        }
                    }
                }

                if (DEBUG) {
                    Log.i(TAG,
                            "Network status changes,the current network is : "
                                    + netState);
                }
            }
        }
    }; 
    private static boolean whetherOrNotoprocess(){
        int mTypesSize = mNetworkTypes.size(); 
        switch (mTypesSize) {
        case 0:
            return false;
        case 1:
            return true;
        default: 
             if(mNetworkTypes.get(mTypesSize-1).toString().equals(mNetworkTypes.get(mTypesSize-2).toString())){
                 return false;
             }else {
                return true;
            }

        }
    }

}

然后就是调用了

public class MainActivity extends AppCompatActivity implements NetStateListener{

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        NetStateController.getInstance(this).addOnNetworkStateListener(this);

    }

    @Override
    public void onNetworkState(NetStateController.NetworkType type) {
        switch (type) {
            case NET_NO:
                Toast.makeText(this, "no network", Toast.LENGTH_SHORT).show();
                break;
            case NET_WIFI:
                Toast.makeText(this, "wifi", Toast.LENGTH_SHORT).show();
                break;
            case NET_2G:
                Toast.makeText(this, "2ggg", Toast.LENGTH_SHORT).show();
                break;
            case NET_3G:
                Toast.makeText(this, "3ggg", Toast.LENGTH_SHORT).show();
                break;
            case NET_4G:
                Toast.makeText(this, "4gggg", Toast.LENGTH_SHORT).show();
                break;
            case NET_UNKNOWN:Toast.makeText(this, "unknown", Toast.LENGTH_SHORT).show();
                break;
        }
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        NetStateController.getInstance(this).removeOnNetworkStateListener(this);
    }
}