Android 获取手机网络状态

public class NetWorkUtils {    /**     * 判断是否有网络连接     */    public static boolean isNetworkConnected(Context context) {        if (context != null) {            // 获取手机所有连接管理对象(包括对wi-fi,net等连接的管理)            ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);            // 获取NetworkInfo对象            NetworkInfo networkInfo = manager.getActiveNetworkInfo();            //判断NetworkInfo对象是否为空            if (networkInfo != null)                return networkInfo.isAvailable();        }        return false;    }    /**     * 判断WIFI网络是否可用     */    public static boolean isMobileConnected(Context context) {        if (context != null) {            //获取手机所有连接管理对象(包括对wi-fi,net等连接的管理)            ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);            //获取NetworkInfo对象            NetworkInfo networkInfo = manager.getActiveNetworkInfo();            //判断NetworkInfo对象是否为空 并且类型是否为MOBILE            if (networkInfo != null && networkInfo.getType() == ConnectivityManager.TYPE_MOBILE){                return networkInfo.isAvailable();        }        return false;    }    /**     * 获取WIFI信息     **/    public static WifiInfo fetchSSIDInfo() {        WifiManager manager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);        return manager.getConnectionInfo();    }    /**     * 获取WIFI名字     **/    public String getWifiSSID() {        return fetchSSIDInfo().getSSID().replace("\"", "");    }    /**     * 获取WIFi的MAC地址     **/    public String getWifiMacAddress() {        return fetchSSIDInfo().getMacAddress();    }    /**     * 获取当前网络连接的类型信息     */    public static int getConnectedType(Context context) {        if (context != null) {            //获取手机所有连接管理对象            ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);            //获取NetworkInfo对象            NetworkInfo networkInfo = manager.getActiveNetworkInfo();            if (networkInfo != null && networkInfo.isAvailable()) {                //返回NetworkInfo的类型                return networkInfo.getType();            }        }        return -1;    }    /**     * 获取当前的网络状态 ：没有网络-0：WIFI网络1：4G网络-4：3G网络-3：2G网络-2     */    public static int getAPNType(Context context) {        //结果返回值        int netType = 0;        //获取手机所有连接管理对象        ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);        //获取NetworkInfo对象        NetworkInfo networkInfo = manager.getActiveNetworkInfo();        //NetworkInfo对象为空 则代表没有网络        if (networkInfo == null) {            return netType;        }        //否则 NetworkInfo对象不为空 则获取该networkInfo的类型        int nType = networkInfo.getType();        if (nType == ConnectivityManager.TYPE_WIFI) {            //WIFI            netType = 1;        } else if (nType == ConnectivityManager.TYPE_MOBILE) {            int nSubType = networkInfo.getSubtype();            TelephonyManager telephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);            //3G   联通的3G为UMTS或HSDPA 电信的3G为EVDO            if (nSubType == TelephonyManager.NETWORK_TYPE_LTE                    && !telephonyManager.isNetworkRoaming()) {                netType = 4;            } else if (nSubType == TelephonyManager.NETWORK_TYPE_UMTS                    || nSubType == TelephonyManager.NETWORK_TYPE_HSDPA                    || nSubType == TelephonyManager.NETWORK_TYPE_EVDO_0                    && !telephonyManager.isNetworkRoaming()) {                netType = 3;                //2G 移动和联通的2G为GPRS或EGDE，电信的2G为CDMA            } else if (nSubType == TelephonyManager.NETWORK_TYPE_GPRS                    || nSubType == TelephonyManager.NETWORK_TYPE_EDGE                    || nSubType == TelephonyManager.NETWORK_TYPE_CDMA                    && !telephonyManager.isNetworkRoaming()) {                netType = 2;            } else {                netType = 2;            }        }        return netType;    }    /**     * 获取运营商     * @return 中国移动/中国联通/中国电信/未知     */    public static String getProvider(Context context) {        String provider = "未知";        try {            TelephonyManager telephonyManager = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);            @SuppressLint("MissingPermission") String IMSI = telephonyManager.getSubscriberId();//            Log.d(TAG, "getProvider.IMSI:" + IMSI);            if (IMSI == null) {                if (TelephonyManager.SIM_STATE_READY == telephonyManager.getSimState()) {                    String operator = telephonyManager.getSimOperator();//                    Log.d(TAG, "getProvider.operator:" + operator);                    if (operator != null) {                        if (operator.equals("46000") || operator.equals("46002") || operator.equals("46007")) {                            provider = "中国移动";                        } else if (operator.equals("46001")) {                            provider = "中国联通";                        } else if (operator.equals("46003")) {                            provider = "中国电信";                        }                    }                }            } else {                if (IMSI.startsWith("46000") || IMSI.startsWith("46002") || IMSI.startsWith("46007")) {                    provider = "中国移动";                } else if (IMSI.startsWith("46001")) {                    provider = "中国联通";                } else if (IMSI.startsWith("46003")) {                    provider = "中国电信";                }            }        } catch (Exception e) {            e.printStackTrace();        }        return provider;    }    /**     * 判断GPS是否打开，需要ACCESS_FINE_LOCATION权限     */    public static boolean isGPSEnabled(Context context) {        //获取手机所有连接LOCATION_SERVICE对象        LocationManager locationManager = ((LocationManager) context.getSystemService(Context.LOCATION_SERVICE));        return locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);    }}
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