Android 获取网络类型

港控/mmm° 2023-05-31 02:42 17阅读 0赞

public class IntenetUtil {
        //没有网络连接
        public static final int NETWORN_NONE = 0;
        //wifi连接
        public static final int NETWORN_WIFI = 1;
        public static final int UnCon_WIFI = 7;
        //手机网络数据连接类型
        public static final int NETWORN_2G = 2;
        public static final int NETWORN_3G = 3;
        public static final int NETWORN_4G = 4;
        public static final int NETWORN_MOBILE = 5;
        public static final int NETWORN_ETHERNET=6;
        /**
         * 获取当前网络连接类型
         * @param context
         * @return
         */
        public static int getNetworkState(Context context) {
            //获取系统的网络服务
            ConnectivityManager connManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
            //如果当前没有网络
            if (null == connManager)
                return NETWORN_NONE;
            //获取当前网络类型，如果为空，返回无网络
            NetworkInfo activeNetInfo = connManager.getActiveNetworkInfo();
            if (activeNetInfo == null || !activeNetInfo.isAvailable()) {
                return NETWORN_NONE;
            }
            // 判断是不是连接的是不是wifi
            NetworkInfo wifiInfo = connManager.getNetworkInfo(ConnectivityManager.TYPE_WIFI);
            if (null != wifiInfo) {
                NetworkInfo.State state = wifiInfo.getState();
                if (null != state)
                    if (state == NetworkInfo.State.CONNECTED
               || state == NetworkInfo.State.CONNECTING) {
                        return NETWORN_WIFI;
                    }else if(state == NetworkInfo.State.DISCONNECTED){
                        return UnCon_WIFI;
                    }
            }
            // 如果不是wifi，则判断当前连接的是运营商的哪种网络2g、3g、4g等
            NetworkInfo networkInfo = connManager.getNetworkInfo(ConnectivityManager.TYPE_MOBILE);
            if (null != networkInfo) {
                NetworkInfo.State state = networkInfo.getState();
                String strSubTypeName = networkInfo.getSubtypeName();
                if (null != state)
                    if (state == NetworkInfo.State.CONNECTED 
               || state == NetworkInfo.State.CONNECTING) {
                        switch (activeNetInfo.getSubtype()) {
                            //如果是2g类型
                            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:
                                return NETWORN_2G;
                            //如果是3g类型
                            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:
                            case TelephonyManager.NETWORK_TYPE_EHRPD:
                            case TelephonyManager.NETWORK_TYPE_HSPAP:
                                return NETWORN_3G;
                            //如果是4g类型
                            case TelephonyManager.NETWORK_TYPE_LTE:
                                return NETWORN_4G;
                            default:
                            //中国移动 联通 电信 三种3G制式
                            if (strSubTypeName.equalsIgnoreCase("TD-SCDMA") 
                   || strSubTypeName.equalsIgnoreCase("WCDMA") 
                   || strSubTypeName.equalsIgnoreCase("CDMA2000")) {
                                return NETWORN_3G;
                            } else {
                                return NETWORN_MOBILE;
                            }
                        }
                    }
            }
            NetworkInfo EthernetInfo = connManager.getNetworkInfo(ConnectivityManager.TYPE_ETHERNET);
            if (null != EthernetInfo){
                NetworkInfo.State state = EthernetInfo.getState();
                if (null != state)
                    if (state == NetworkInfo.State.CONNECTED || state == NetworkInfo.State.CONNECTING) {
                        return NETWORN_ETHERNET;
                    }
            }
            return NETWORN_NONE;
        }
    }