Wykryj typ połączenia sieciowego na Androidzie


186

Jak wykrywasz typ połączenia sieciowego na Androidzie?

Czy to już ConnectivityManager.getActiveNetworkInfo().getType()koniec i czy odpowiedź ogranicza się do Wi-Fi i urządzeń mobilnych?

Odpowiedzi:


448

Jeśli problemem jest ustalenie, czy sieć telefonu jest podłączona i wystarczająco szybka, aby spełnić Twoje wymagania, musisz obsłużyć wszystkie typy sieci zwrócone przez getSubType().

Zajęło mi godzinę lub dwie, aby zbadać i napisać tę klasę, aby zrobić dokładnie to, i pomyślałem, że podzielę się nią z innymi, którzy mogą uznać ją za przydatną.

Oto Istota klasy , więc możesz ją rozwidlić i edytować.

package com.emil.android.util;

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.telephony.TelephonyManager;

/**
 * Check device's network connectivity and speed 
 * @author emil http://stackoverflow.com/users/220710/emil
 *
 */
public class Connectivity {

    /**
     * Get the network info
     * @param context
     * @return
     */
    public static NetworkInfo getNetworkInfo(Context context){
        ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        return cm.getActiveNetworkInfo();
    }

    /**
     * Check if there is any connectivity
     * @param context
     * @return
     */
    public static boolean isConnected(Context context){
        NetworkInfo info = Connectivity.getNetworkInfo(context);
        return (info != null && info.isConnected());
    }

    /**
     * Check if there is any connectivity to a Wifi network
     * @param context
     * @return
     */
    public static boolean isConnectedWifi(Context context){
        NetworkInfo info = Connectivity.getNetworkInfo(context);
        return (info != null && info.isConnected() && info.getType() == ConnectivityManager.TYPE_WIFI);
    }

    /**
     * Check if there is any connectivity to a mobile network
     * @param context
     * @return
     */
    public static boolean isConnectedMobile(Context context){
        NetworkInfo info = Connectivity.getNetworkInfo(context);
        return (info != null && info.isConnected() && info.getType() == ConnectivityManager.TYPE_MOBILE);
    }

    /**
     * Check if there is fast connectivity
     * @param context
     * @return
     */
    public static boolean isConnectedFast(Context context){
        NetworkInfo info = Connectivity.getNetworkInfo(context);
        return (info != null && info.isConnected() && Connectivity.isConnectionFast(info.getType(),info.getSubtype()));
    }

    /**
     * Check if the connection is fast
     * @param type
     * @param subType
     * @return
     */
    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;
        }
    }

}

Pamiętaj również, aby dodać to uprawnienie do pliku AndroidManifest.xml

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"></uses-permission>

Źródła prędkości sieci obejmują wikipedię i http://3gstore.com/page/78_what_is_evdo_mobile_broadband.html


10
Dzięki. Przy okazji wszystkie stałe dla typów sieci ( tutaj ) są public static final int. Więc nie musisz robić „hacka”. Po prostu celuj w najnowszy zestaw SDK, kompilator kompiluje rzeczywiste wartości (liczby całkowite), które wskazują (nie ich instancje) do kodów bajtowych.

3
@LaiVung Kiedy odpowiedziałem, właśnie zacząłem kodować dla Androida i nie wiedziałem, jak korzystać z tego targetSdkVersionustawienia. Zredagowałem post, aby usunąć włamanie, dzięki.
Emil Davtyan,

3
Ale skąd mogę poznać prędkość Wi-Fi? Ponieważ możesz uzyskać szybkie połączenie, ale twoje wifi jest zbyt wolne ...
Terranology

1
Ponieważ wszystkie metody są statyczne, tę klasę można uznać za ostateczną i mieć prywatny konstruktor.
Gabriel

ale to sprawdza tylko, czy połączenie sieciowe jest dostępne, a nie, czy rzeczywiście istnieje połączenie internetowe? Musisz pingować serwer np. Aby być w 100% bezpieczny.
Sini

59

Aby uzyskać bardziej precyzyjne (i przyjazne dla użytkownika) informacje o typie połączenia. Możesz użyć tego kodu (pochodzącego z metody @hide w TelephonyManager.java ).

Ta metoda zwraca ciąg opisujący bieżący typ połączenia.
tzn. jeden z: „WIFI”, „2G”, „3G”, „4G”, „5G”, „-” (niepodłączony) lub „?” (nieznany)

Uwaga: Ten kod wymaga API 25+, ale możesz z łatwością obsługiwać starsze wersje, używając int zamiast const. (Patrz komentarze w kodzie).

public static String getNetworkClass(Context context) {
    ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);      
    NetworkInfo info = cm.getActiveNetworkInfo();
    if (info == null || !info.isConnected())
        return "-"; // not connected
    if (info.getType() == ConnectivityManager.TYPE_WIFI)
        return "WIFI";
    if (info.getType() == ConnectivityManager.TYPE_MOBILE) {
        int networkType = info.getSubtype();
        switch (networkType) {
            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:     // api< 8: replace by 11
            case TelephonyManager.NETWORK_TYPE_GSM:      // api<25: replace by 16
                return "2G";
            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:   // api< 9: replace by 12
            case TelephonyManager.NETWORK_TYPE_EHRPD:    // api<11: replace by 14
            case TelephonyManager.NETWORK_TYPE_HSPAP:    // api<13: replace by 15
            case TelephonyManager.NETWORK_TYPE_TD_SCDMA: // api<25: replace by 17
                return "3G";
            case TelephonyManager.NETWORK_TYPE_LTE:      // api<11: replace by 13
            case TelephonyManager.NETWORK_TYPE_IWLAN:    // api<25: replace by 18
            case 19: // LTE_CA
                return "4G";
            case TelephonyManager.NETWORK_TYPE_NR:       // api<29: replace by 20
                return "5G";
            default:
                return "?";
         }
    }
    return "?";
}

co jeśli NETWORK_TYPE_IWLAN
Jyoti JK

53

Aby uzyskać więcej informacji, możesz użyć getSubtype (). Sprawdź slajd 9 tutaj: http://dl.google.com/io/2009/pres/W_0300_CodingforLife-BatteryLifeThatIs.pdf

ConnectivityManager mConnectivity = null;
TelephonyManager mTelephony = null;
// Skip if no connection, or background data disabled
NetworkInfo info = mConnectivity.getActiveNetworkInfo();
if (info == null || !mConnectivity.getBackgroundDataSetting()) {
    return false;
}

// Only update if WiFi or 3G is connected and not roaming
int netType = info.getType();
int netSubtype = info.getSubtype();
if (netType == ConnectivityManager.TYPE_WIFI) {
    return info.isConnected();
} else if (netType == ConnectivityManager.TYPE_MOBILE
    && netSubtype == TelephonyManager.NETWORK_TYPE_UMTS
    && !mTelephony.isNetworkRoaming()) {
        return info.isConnected();
} else {
    return false;
}

Sprawdź również odpowiedź Emila, aby uzyskać bardziej szczegółowe informacje na ten temat.


WiMAX też, nie? Miałem problem z ustaleniem, co to jest sieć z
obsługą

1
Uzyskaj instancję klasy ConnectivityManager, wywołując Context.getSystemService (Context.CONNECTIVITY_SERVICE).
Ernir Erlingsson

jak sprawdzić internet jest czy nie w wifi? każdy ma rozwiązanie
Aman Jham

13

@ Odpowiedź Emila powyżej jest genialna.

Mały dodatek: idealnie powinniśmy używać TelephonyManager do wykrywania typów sieci. Dlatego powyższe powinno brzmieć:

/**
 * Check if there is fast connectivity
 * @param context
 * @return
 */
public static boolean isConnectedFast(Context context){
    ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo info = cm.getActiveNetworkInfo();
    TelephonyManager tm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
    return (info != null && info.isConnected() && Connectivity.isConnectionFast(info.getType(), tm.getNetworkType()));
}

7

Odpowiedź Emila Davtyana jest dobra, ale dodano typy sieci, które nie są uwzględnione w jego odpowiedzi. isConnectionFast(int type, int subType)Może więc zwrócić wartość false, gdy powinna być prawdziwa.

Oto zmodyfikowana klasa, która używa refleksji do uwzględnienia dodanych typów sieci w późniejszych interfejsach API:

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.telephony.TelephonyManager;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

/**
 * <p>Utility methods to check the current network connection status.</p>
 *
 * <p>This requires the caller to hold the permission
 * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}.</p>
 */
public class NetworkUtils {

  /** The absence of a connection type. */
  public static final int TYPE_NONE = -1;

  /** Unknown network class. */
  public static final int NETWORK_CLASS_UNKNOWN = 0;
  /** Class of broadly defined "2G" networks. */
  public static final int NETWORK_CLASS_2_G = 1;
  /** Class of broadly defined "3G" networks. */
  public static final int NETWORK_CLASS_3_G = 2;
  /** Class of broadly defined "4G" networks. */
  public static final int NETWORK_CLASS_4_G = 3;

  /**
   * Returns details about the currently active default data network. When connected, this network
   * is the default route for outgoing connections. You should always check {@link
   * NetworkInfo#isConnected()} before initiating network traffic. This may return {@code null}
   * when there is no default network.
   *
   * @return a {@link NetworkInfo} object for the current default network or {@code null} if no
   * network default network is currently active
   *
   * This method requires the call to hold the permission
   * {@link android.Manifest.permission#ACCESS_NETWORK_STATE}.
   * @see ConnectivityManager#getActiveNetworkInfo()
   */
  public static NetworkInfo getInfo(Context context) {
    return ((ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE))
        .getActiveNetworkInfo();
  }

  /**
   * Reports the current network type.
   *
   * @return {@link ConnectivityManager#TYPE_MOBILE}, {@link ConnectivityManager#TYPE_WIFI} ,
   * {@link ConnectivityManager#TYPE_WIMAX}, {@link ConnectivityManager#TYPE_ETHERNET}, {@link
   * ConnectivityManager#TYPE_BLUETOOTH}, or other types defined by {@link ConnectivityManager}.
   * If there is no network connection then -1 is returned.
   * @see NetworkInfo#getType()
   */
  public static int getType(Context context) {
    NetworkInfo info = getInfo(context);
    if (info == null || !info.isConnected()) {
      return TYPE_NONE;
    }
    return info.getType();
  }

  /**
   * Return a network-type-specific integer describing the subtype of the network.
   *
   * @return the network subtype
   * @see NetworkInfo#getSubtype()
   */
  public static int getSubType(Context context) {
    NetworkInfo info = getInfo(context);
    if (info == null || !info.isConnected()) {
      return TYPE_NONE;
    }
    return info.getSubtype();
  }

  /** Returns the NETWORK_TYPE_xxxx for current data connection. */
  public static int getNetworkType(Context context) {
    return ((TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE))
        .getNetworkType();
  }

  /** Check if there is any connectivity */
  public static boolean isConnected(Context context) {
    return getType(context) != TYPE_NONE;
  }

  /** Check if there is any connectivity to a Wifi network */
  public static boolean isWifiConnection(Context context) {
    NetworkInfo info = getInfo(context);
    if (info == null || !info.isConnected()) {
      return false;
    }
    switch (info.getType()) {
      case ConnectivityManager.TYPE_WIFI:
        return true;
      default:
        return false;
    }
  }

  /** Check if there is any connectivity to a mobile network */
  public static boolean isMobileConnection(Context context) {
    NetworkInfo info = getInfo(context);
    if (info == null || !info.isConnected()) {
      return false;
    }
    switch (info.getType()) {
      case ConnectivityManager.TYPE_MOBILE:
        return true;
      default:
        return false;
    }
  }

  /** Check if the current connection is fast. */
  public static boolean isConnectionFast(Context context) {
    NetworkInfo info = getInfo(context);
    if (info == null || !info.isConnected()) {
      return false;
    }
    switch (info.getType()) {
      case ConnectivityManager.TYPE_WIFI:
      case ConnectivityManager.TYPE_ETHERNET:
        return true;
      case ConnectivityManager.TYPE_MOBILE:
        int networkClass = getNetworkClass(getNetworkType(context));
        switch (networkClass) {
          case NETWORK_CLASS_UNKNOWN:
          case NETWORK_CLASS_2_G:
            return false;
          case NETWORK_CLASS_3_G:
          case NETWORK_CLASS_4_G:
            return true;
        }
      default:
        return false;
    }
  }

  private static int getNetworkClassReflect(int networkType)
      throws NoSuchMethodException, InvocationTargetException, IllegalAccessException {
    Method getNetworkClass = TelephonyManager.class.getDeclaredMethod("getNetworkClass", int.class);
    if (!getNetworkClass.isAccessible()) {
      getNetworkClass.setAccessible(true);
    }
    return (int) getNetworkClass.invoke(null, networkType);
  }

  /**
   * Return general class of network type, such as "3G" or "4G". In cases where classification is
   * contentious, this method is conservative.
   */
  public static int getNetworkClass(int networkType) {
    try {
      return getNetworkClassReflect(networkType);
    } catch (Exception ignored) {
    }

    switch (networkType) {
      case TelephonyManager.NETWORK_TYPE_GPRS:
      case 16: // TelephonyManager.NETWORK_TYPE_GSM:
      case TelephonyManager.NETWORK_TYPE_EDGE:
      case TelephonyManager.NETWORK_TYPE_CDMA:
      case TelephonyManager.NETWORK_TYPE_1xRTT:
      case TelephonyManager.NETWORK_TYPE_IDEN:
        return 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:
      case 17: // TelephonyManager.NETWORK_TYPE_TD_SCDMA:
        return NETWORK_CLASS_3_G;
      case TelephonyManager.NETWORK_TYPE_LTE:
      case 18: // TelephonyManager.NETWORK_TYPE_IWLAN:
        return NETWORK_CLASS_4_G;
      default:
        return NETWORK_CLASS_UNKNOWN;
    }
  }

  private NetworkUtils() {
    throw new AssertionError();
  }

}

jak wdrożyć to do działania?
Joe,

@Joe Skopiuj klasę do swojego projektu, a następnie wywołaj jedną z metod statycznej użyteczności z twojego działania. Przykład:if (NetworkUtils.isWifiConnection(this) { /* do stuff */ }
Jared Rummler,

@Jared Rummler może mi pomóc, jak korzystać z tego kodu w dual sim włączyć telefon komórkowy?
iOS

@Jared Rummler, hai Jared Rummler, możesz mi pomóc ... Dostaję typ sieci tylko dla jednej karty SIM, ale potrzebuję wyniku dla dwóch kart SIM. Jeśli to możliwe, pomóż mi ....
iOS

@JaredRummler, więc czy powinienem sprawdzić wszystkie funkcje, aby wiedzieć, które są dostępne (lub podłączone) do wywoływania moich rzeczy?
Arnold Brown

4

Możesz wykonać niestandardową metodę wykonania tego zadania.

  public String getNetworkClass(Context context) {
        TelephonyManager mTelephonyManager = (TelephonyManager)
                context.getSystemService(Context.TELEPHONY_SERVICE);
        int networkType = mTelephonyManager.getNetworkType();
        switch (networkType) {
            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 "2G";
            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 "3G";
            case TelephonyManager.NETWORK_TYPE_LTE:
                return "4G";
            default:
                return "Unknown";
        }
    }

2

Oprócz niesamowitej odpowiedzi Emila chciałbym dodać jeszcze jedną metodę, aby sprawdzić, czy faktycznie masz dostęp do Internetu, ponieważ możesz wyłączyć dane w telefonie.

public static boolean hasInternetAccess(Context c){
    TelephonyManager tm = (TelephonyManager) c.getSystemService(Context.TELEPHONY_SERVICE);
    if(isConnected(c) && tm.getDataState() == TelephonyManager.DATA_CONNECTED)
       return true;
    else
        return false;
}

Pamiętaj, że służy to tylko sprawdzeniu, czy istnieje komórkowe połączenie danych i zwróci false, jeśli masz podłączone WiFi, ponieważ dane komórkowe są wyłączone, gdy WiFi jest podłączone.


2

Możesz to sprawdzić w ten sposób

public void checktype() {
    ConnectivityManager cm = (ConnectivityManager) this.getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo activeNetwork = cm.getActiveNetworkInfo();
    if (activeNetwork != null) { // connected to the internet
        if (activeNetwork.getType() == ConnectivityManager.TYPE_WIFI) {
            // connected to wifi
            Toast.makeText(this, activeNetwork.getTypeName(), Toast.LENGTH_SHORT).show();
        } else if (activeNetwork.getType() == ConnectivityManager.TYPE_MOBILE) {
            // connected to the mobile provider's data plan
            Toast.makeText(this, activeNetwork.getTypeName(), Toast.LENGTH_SHORT).show();
        }
    }
}

1
String active_network = ((ConnectivityManager)
    .getSystemService(Context.CONNECTIVITY_SERVICE))
    .getActiveNetworkInfo().getSubtypeName();

powinien dostać nazwę sieci



0

Możesz spróbować:

public String ConnectionQuality() {
    NetworkInfo info = getInfo(context);
    if (info == null || !info.isConnected()) {
      return "UNKNOWN";
    }

    if(info.getType() == ConnectivityManager.TYPE_WIFI) {
        WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
        int numberOfLevels = 5;
        WifiInfo wifiInfo = wifiManager.getConnectionInfo();
        int level = WifiManager.calculateSignalLevel(wifiInfo.getRssi(), numberOfLevels);
        if(level == 2 )
                return "POOR";
            else if(level == 3 )
                return "MODERATE";
            else if(level == 4 )
                return "GOOD";
            else if(level == 5 )
                return "EXCELLENT";
            else
            return "UNKNOWN";
        }else if(info.getType() == ConnectivityManager.TYPE_MOBILE) {
            int networkClass = getNetworkClass(getNetworkType(context));
            if(networkClass == 1)
                return "POOR";
            else if(networkClass == 2 )
                return "GOOD";
            else if(networkClass == 3 )
                return "EXCELLENT";
            else
                return "UNKNOWN";
        }else
            return "UNKNOWN";  
}

public NetworkInfo getInfo(Context context) {
    return ((ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE)).getActiveNetworkInfo();
}

public int getNetworkClass(int networkType) {
    try {
      return getNetworkClassReflect(networkType);
    }catch (Exception ignored) {
    }

    switch (networkType) {
      case TelephonyManager.NETWORK_TYPE_GPRS:
      case 16: // TelephonyManager.NETWORK_TYPE_GSM:
      case TelephonyManager.NETWORK_TYPE_EDGE:
      case TelephonyManager.NETWORK_TYPE_CDMA:
      case TelephonyManager.NETWORK_TYPE_1xRTT:
      case TelephonyManager.NETWORK_TYPE_IDEN:
        return 1;
      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:
      case 17: // TelephonyManager.NETWORK_TYPE_TD_SCDMA:
        return 2;
      case TelephonyManager.NETWORK_TYPE_LTE:
      case 18: // TelephonyManager.NETWORK_TYPE_IWLAN:
        return 3;
      default:
        return 0;
    }
}

private int getNetworkClassReflect(int networkType) throws NoSuchMethodException, InvocationTargetException, IllegalAccessException {  
    Method getNetworkClass = TelephonyManager.class.getDeclaredMethod("getNetworkClass", int.class);
    if (!getNetworkClass.isAccessible()) {
      getNetworkClass.setAccessible(true);
    }
    return (Integer) getNetworkClass.invoke(null, networkType); 
}

public static int getNetworkType(Context context) {
    return ((TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE)).getNetworkType();
}

0

Wykryj, jaki typ sieci i uzyskanie wartości logicznej dla isconnected lub nie używaj poniżej fragmentu kodu

import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.telephony.TelephonyManager;
public class NetworkManagerUtils {

/**
 * Get the network info
 * @param context
 * @return
 */
public static NetworkInfo getNetworkInfo(Context context){
    ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
    return cm.getActiveNetworkInfo();
}

/**
 * Check if there is any connectivity
 * @param context
 * @return
 */
public static boolean isConnected(Context context){
    NetworkInfo info = NetworkManagerUtils.getNetworkInfo(context);
    return (info != null && info.isConnected());
}

/**
 * Check if there is any connectivity to a Wifi network
 * @param context.
 * @param type
 * @return
 */
public static boolean isConnectedWifi(Context context){
    NetworkInfo info = NetworkManagerUtils.getNetworkInfo(context);
    return (info != null && info.isConnected() && info.getType() == ConnectivityManager.TYPE_WIFI);
}

/**
 * Check if there is any connectivity to a mobile network
 * @param context
 * @param type
 * @return
 */
public static boolean isConnectedMobile(Context context){
    NetworkInfo info = NetworkManagerUtils.getNetworkInfo(context);
    return (info != null && info.isConnected() && info.getType() == ConnectivityManager.TYPE_MOBILE);
}

/**
 * Check if there is fast connectivity
 * @param context
 * @return
 */
public static boolean isConnectedFast(Context context){
    NetworkInfo info = NetworkManagerUtils.getNetworkInfo(context);
    return (info != null && info.isConnected() && NetworkManagerUtils.isConnectionFast(info.getType(),info.getSubtype()));
}

/**
 * Check if the connection is fast
 * @param type
 * @param subType
 * @return
 */
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;
    }
}
public static String getNetworkClass(Context context) {
    ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo info = cm.getActiveNetworkInfo();
    if (info == null || !info.isConnected())
        return "-"; // not connected
    if (info.getType() == ConnectivityManager.TYPE_WIFI)
        return "WIFI";
    if (info.getType() == ConnectivityManager.TYPE_MOBILE) {
        int networkType = info.getSubtype();
        switch (networkType) {
            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:     // api< 8: replace by 11
            case TelephonyManager.NETWORK_TYPE_GSM:      // api<25: replace by 16
                return "2G";
            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:   // api< 9: replace by 12
            case TelephonyManager.NETWORK_TYPE_EHRPD:    // api<11: replace by 14
            case TelephonyManager.NETWORK_TYPE_HSPAP:    // api<13: replace by 15
            case TelephonyManager.NETWORK_TYPE_TD_SCDMA: // api<25: replace by 17
                return "3G";
            case TelephonyManager.NETWORK_TYPE_LTE:      // api<11: replace by 13
            case TelephonyManager.NETWORK_TYPE_IWLAN:    // api<25: replace by 18
            case 19: // LTE_CA
                return "4G";
            default:
                return "?";
        }
    }
    return "?";
}
}

użyj tego po przejściu przez klasę, w którym uzyskasz status sieci, taki jak typ sieci, szybka sieć itp.


0

Poniżej pokazano różne sposoby na zrobienie tego. Należy pamiętać, że w klasie ConnectivityManager istnieje wiele typów sieci. Ponadto, jeśli API> = 21, możesz sprawdzić typy sieci w klasie NetworkCapabilities.

    ConnectivityMonitor connectivityMonitor = ConnectivityMonitor.getInstance(this);
    boolean isWiFiConnected = connectivityMonitor.isWifiConnection();
    boolean isMobileConnected = connectivityMonitor.isConnected(ConnectivityManager.TYPE_MOBILE);
    Log.e(TAG, "onCreate: isWiFiConnected " + isWiFiConnected);
    Log.e(TAG, "onCreate: isMobileConnected " + isMobileConnected);
    ConnectivityMonitor.Listener connectivityListener = new ConnectivityMonitor.Listener() {
        @Override
        public void onConnectivityChanged(boolean connected, @Nullable NetworkInfo networkInfo) {
            Log.e(TAG, "onConnectivityChanged: connected " + connected);
            Log.e(TAG, "onConnectivityChanged: networkInfo " + networkInfo);
            if (networkInfo != null) {
                boolean isWiFiConnected = networkInfo.getType() == NetworkCapabilities.TRANSPORT_WIFI;
                boolean isMobileConnected = networkInfo.getType() == NetworkCapabilities.TRANSPORT_CELLULAR;
                Log.e(TAG, "onConnectivityChanged: isWiFiConnected " + isWiFiConnected);
                Log.e(TAG, "onConnectivityChanged: isMobileConnected " + isMobileConnected);
            }
        }
    };
    connectivityMonitor.addListener(connectivityListener);
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