关于android监听网路状态的代码

来源：互联网发布：大数据风险编辑：程序博客网时间：2024/05/17 09:41

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);    }}

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