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- public class NetworkUtils {
- public static NetworkInfo getNetworkInfo(final Context context) {
- ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
- return cm.getActiveNetworkInfo();
- }
- public static boolean isConnected(final Context context) {
- NetworkInfo info = getNetworkInfo(context);
- return (info != null && info.isConnected());
- }
- public static boolean isConnectedWifi(final Context context) {
- NetworkInfo info = getNetworkInfo(context);
- return (info != null && info.isConnected() && info.getType() == ConnectivityManager.TYPE_WIFI);
- }
- public static boolean isConnectedMobile(final Context context) {
- NetworkInfo info = getNetworkInfo(context);
- return (info != null && info.isConnected() && info.getType() == ConnectivityManager.TYPE_MOBILE);
- }
- public static boolean isConnectedFast(final Context context) {
- NetworkInfo info = getNetworkInfo(context);
- return (info != null && info.isConnected() && isConnectionFast(info.getType(), info.getSubtype()));
- }
- public static boolean isConnectionFast(int type, int subType) {
- if (type == ConnectivityManager.TYPE_WIFI) {
- return true;
- } else if (type == ConnectivityManager.TYPE_MOBILE) {
- switch (subType) {
- case TelephonyManager.NETWORK_TYPE_1xRTT:
- return false; // ~ 50-100 kbps
- case TelephonyManager.NETWORK_TYPE_CDMA:
- return false; // ~ 14-64 kbps
- case TelephonyManager.NETWORK_TYPE_EDGE:
- return false; // ~ 50-100 kbps
- case TelephonyManager.NETWORK_TYPE_EVDO_0:
- return true; // ~ 400-1000 kbps
- case TelephonyManager.NETWORK_TYPE_EVDO_A:
- return true; // ~ 600-1400 kbps
- case TelephonyManager.NETWORK_TYPE_GPRS:
- return false; // ~ 100 kbps
- case TelephonyManager.NETWORK_TYPE_HSDPA:
- return true; // ~ 2-14 Mbps
- case TelephonyManager.NETWORK_TYPE_HSPA:
- return true; // ~ 700-1700 kbps
- case TelephonyManager.NETWORK_TYPE_HSUPA:
- return true; // ~ 1-23 Mbps
- case TelephonyManager.NETWORK_TYPE_UMTS:
- return true; // ~ 400-7000 kbps
- /*
- * Above API level 7, make sure to set android:targetSdkVersion
- * to appropriate level to use these
- */
- case TelephonyManager.NETWORK_TYPE_EHRPD: // API level 11
- return true; // ~ 1-2 Mbps
- case TelephonyManager.NETWORK_TYPE_EVDO_B: // API level 9
- return true; // ~ 5 Mbps
- case TelephonyManager.NETWORK_TYPE_HSPAP: // API level 13
- return true; // ~ 10-20 Mbps
- case TelephonyManager.NETWORK_TYPE_IDEN: // API level 8
- return false; // ~25 kbps
- case TelephonyManager.NETWORK_TYPE_LTE: // API level 11
- return true; // ~ 10+ Mbps
- // Unknown
- case TelephonyManager.NETWORK_TYPE_UNKNOWN:
- default:
- return false;
- }
- } else {
- return false;
- }
- }
- }
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