Android网络判断

来源：互联网发布：网络日语翻译兼职编辑：程序博客网时间：2024/06/05 07:23
/*** 打开网络设置界面*/public static void openSetting(Activity activity) {    Intent intent = new Intent("/");    ComponentName cm = new ComponentName("com.android.settings",            "com.android.settings.WirelessSettings");    intent.setComponent(cm);    intent.setAction("android.intent.action.VIEW");    activity.startActivityForResult(intent, 0);}
/*** 判断是否网络连接*/public static boolean isOnline(Context context) {    ConnectivityManager manager = (ConnectivityManager) context            .getSystemService(Activity.CONNECTIVITY_SERVICE);    NetworkInfo info = manager.getActiveNetworkInfo();    if (info != null && info.isConnected()) {        return true;    }    return false;}
/*** 判断wifi是否连接状态*/public static boolean isWifi(Context context) {    ConnectivityManager cm = (ConnectivityManager) context            .getSystemService(Context.CONNECTIVITY_SERVICE);    return cm != null && cm.getActiveNetworkInfo().getType() == ConnectivityManager.TYPE_WIFI;}
/*** 获取移动网络运营商名称，如中国联通、中国移动、中国电信*/public static String getNetworkOperatorName(Context context) {    TelephonyManager telephonyManager = (TelephonyManager) context            .getSystemService(Context.TELEPHONY_SERVICE);    return telephonyManager.getNetworkOperatorName();}
//判断手机连接的网络类型(2G,3G,4G)
// 联通的3G为UMTS或HSDPA，移动和联通的2G为GPRS或EGDE，电信的2G为CDMA，电信的3G为EVDOpublic class Constants {    /**     * Unknown network class     */    public static final int NETWORK_CLASS_UNKNOWN = 0;    /**     * wifi net work     */    public static final int NETWORK_WIFI = 1;    /**     * "2G" networks     */    public static final int NETWORK_CLASS_2_G = 2;    /**     * "3G" networks     */    public static final int NETWORK_CLASS_3_G = 3;    /**     * "4G" networks     */    public static final int NETWORK_CLASS_4_G = 4;}/*** 判断手机连接的网络类型(2G,3G,4G)*/public static int getNetWorkClass(Context context) {    TelephonyManager telephonyManager = (TelephonyManager) context            .getSystemService(Context.TELEPHONY_SERVICE);    switch (telephonyManager.getNetworkType()) {        case TelephonyManager.NETWORK_TYPE_GPRS:        case TelephonyManager.NETWORK_TYPE_EDGE:        case TelephonyManager.NETWORK_TYPE_CDMA:        case TelephonyManager.NETWORK_TYPE_1xRTT:        case TelephonyManager.NETWORK_TYPE_IDEN:            return Constants.NETWORK_CLASS_2_G;        case TelephonyManager.NETWORK_TYPE_UMTS:        case TelephonyManager.NETWORK_TYPE_EVDO_0:        case TelephonyManager.NETWORK_TYPE_EVDO_A:        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 Constants.NETWORK_CLASS_3_G;        case TelephonyManager.NETWORK_TYPE_LTE:            return Constants.NETWORK_CLASS_4_G;        default:            return Constants.NETWORK_CLASS_UNKNOWN;    }}
/*** 判断当前手机的网络类型(WIFI还是2,3,4G)，需要用到上面的方法*/public static int getNetWorkStatus(Context context) {    int netWorkType = Constants.NETWORK_CLASS_UNKNOWN;    ConnectivityManager connectivityManager = (ConnectivityManager) context            .getSystemService(Context.CONNECTIVITY_SERVICE);    NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo();    if (networkInfo != null && networkInfo.isConnected()) {        int type = networkInfo.getType();        if (type == ConnectivityManager.TYPE_WIFI) {            netWorkType = Constants.NETWORK_WIFI;        } else if (type == ConnectivityManager.TYPE_MOBILE) {            netWorkType = getNetWorkClass(context);        }    }    return netWorkType;}
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