GPRS 区分2g/3g/4g网络

来源：互联网发布：Python reverse 编辑：程序博客网时间：2024/04/30 12:16
/** * 区分2g/3g/4gGPRG网络 * @author Bubble  *  */import android.content.Context;import android.net.ConnectivityManager;import android.net.NetworkInfo;import android.provider.SyncStateContract.Constants;import android.telephony.TelephonyManager;public class GPRSNetType {    private static final int NETWORK_TYPE_UNAVAILABLE = -1;    private static final int NETWORK_TYPE_WIFI = -101;    private static final int NETWORK_CLASS_WIFI = -101;    private static final int NETWORK_CLASS_UNAVAILABLE = -1;    /** Unknown network class. */    private static final int NETWORK_CLASS_UNKNOWN = 0;    private static final int NETWORK_CLASS_2_G = 1;    private static final int NETWORK_CLASS_3_G = 2;    private static final int NETWORK_CLASS_4_G = 3;    // 适配低版本手机    public static final int NETWORK_TYPE_UNKNOWN = 0;    public static final int NETWORK_TYPE_GPRS = 1;    public static final int NETWORK_TYPE_EDGE = 2;    public static final int NETWORK_TYPE_UMTS = 3;    public static final int NETWORK_TYPE_CDMA = 4;    public static final int NETWORK_TYPE_EVDO_0 = 5;    public static final int NETWORK_TYPE_EVDO_A = 6;    public static final int NETWORK_TYPE_1xRTT = 7;    public static final int NETWORK_TYPE_HSDPA = 8;    public static final int NETWORK_TYPE_HSUPA = 9;    public static final int NETWORK_TYPE_HSPA = 10;    public static final int NETWORK_TYPE_IDEN = 11;    public static final int NETWORK_TYPE_EVDO_B = 12;    public static final int NETWORK_TYPE_LTE = 13;    public static final int NETWORK_TYPE_EHRPD = 14;    public static final int NETWORK_TYPE_HSPAP = 15;    /**     *      * @param context     * @return     */     static int getNetworkClass(Context context) {        int networkType = NETWORK_TYPE_UNKNOWN;        try {            final NetworkInfo network = ((ConnectivityManager) context                    .getSystemService(Context.CONNECTIVITY_SERVICE))                    .getActiveNetworkInfo();            if (network != null && network.isAvailable()                    && network.isConnected()) {                int type = network.getType();                if (type == ConnectivityManager.TYPE_WIFI) {                    networkType = NETWORK_TYPE_WIFI;                } else if (type == ConnectivityManager.TYPE_MOBILE) {                    TelephonyManager telephonyManager = (TelephonyManager) context                            .getSystemService(Context.TELEPHONY_SERVICE);                    networkType = telephonyManager.getNetworkType();                }            } else {                networkType = NETWORK_TYPE_UNAVAILABLE;            }        } catch (Exception ex) {            ex.printStackTrace();        }        return getNetworkClassByType(networkType);    }    /**     * 根据网络类型区分2g/3g/4g     * @param networkType     * @return     */    private static int getNetworkClassByType(int networkType) {        switch (networkType) {        case NETWORK_TYPE_UNAVAILABLE:            return NETWORK_CLASS_UNAVAILABLE;        case NETWORK_TYPE_WIFI:            return NETWORK_CLASS_WIFI;        case NETWORK_TYPE_GPRS:        case NETWORK_TYPE_EDGE:        case NETWORK_TYPE_CDMA:        case NETWORK_TYPE_1xRTT:        case NETWORK_TYPE_IDEN:            return  NETWORK_CLASS_2_G         case NETWORK_TYPE_UMTS:        case NETWORK_TYPE_EVDO_0:        case NETWORK_TYPE_EVDO_A:        case NETWORK_TYPE_HSDPA:        case NETWORK_TYPE_HSUPA:        case NETWORK_TYPE_HSPA:        case NETWORK_TYPE_EVDO_B:        case NETWORK_TYPE_EHRPD:        case NETWORK_TYPE_HSPAP:            return NETWORK_CLASS_3G         case NETWORK_TYPE_LTE:            return NETWORK_CLASS_4G;        default:            return NETWORK_CLASS_UNKNOWN;        }    }    /**     * 获取当前的网络类型     *      * @param context     * @return     */    public static String getCurrentNetworkType(Context context) {        int networkClass = getNetworkClass(context);        String type = "未知";        switch (networkClass) {        case NETWORK_CLASS_UNAVAILABLE:            type = "无";            break;        case NETWORK_CLASS_WIFI:            type = "Wi-Fi";            break;        case Constant.NETWORK_CLASS_2G:            type = "2G";            break;        case Constant.NETWORK_CLASS_3G:            type = "3G";            break;        case Constant.NETWORK_CLASS_4G:            type = "4G";            break;        case Constant.NETWORK_CLASS_RESERVE0:            type = "未知";            break;        }        return type;    }}
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