如何檢測哪個運營商（Sim1或Sim2）在設備中提供移動數據？

Question

我能夠確定我的設備正在使用Wifi還是移動數據。 現在，我要確定在雙SIM卡設備中提供移動數據的SIM卡操作員。

 NetworkInfo[] netInfo = cm.getAllNetworkInfo();
   for (NetworkInfo ni : netInfo) {
        if(ni.getDetailedState().toString().toLowerCase().equals("connected")){
            tv.setText(" Typename: "+ni.getTypeName());
            tv.append("\n Detailed state: "+ni.getDetailedState()+"\n Extra Info: "+ni.getExtraInfo()+"\n Type: "+ni.getType()+"\n Reason :"+ni.getReason()
                    +"\n SubType Name :"+ni.getSubtypeName()+"\n SubType :"+ni.getSubtype()+"\n State :"+ni.getState());
            if(!ni.getTypeName().toString().toLowerCase().equals("wifi")){
                tv.append("\n Carrier:"+carrierName);
            }



        }

    }   

上面的代碼在WIFI和數據之間進行標識。 但是，如果該設備正在使用移動數據，並且它是雙SIM卡設備，那么我如何識別哪個SIM卡在提供移動數據？ enter code here

Answer 1

對於API> = 21

從Settings.Global

int sim = -1;
SubscriptionManager sm = (SubscriptionManager)context.getSystemService(Context.TELEPHONY_SUBSCRIPTION_SERVICE);
if (sm != null) {
   try {
        int id = Settings.Global.getInt(context.getContentResolver(), "multi_sim_data_call");
        SubscriptionInfo si = sm.getActiveSubscriptionInfo(id);
        if (si != null)
            sim = si.getSimSlotIndex();
       } catch (Settings.SettingNotFoundException e) {
            e.printStackTrace();
       }                                                                    
  }

或使用反射

int sim = -1;
SubscriptionManager sm = (SubscriptionManager)context.getSystemService(Context.TELEPHONY_SUBSCRIPTION_SERVICE);
if (sm != null) {
   try {
        Method mGetDefaultDataSubId = getMethod(sm.getClass(), "getDefaultDataSubscriptionId", 0);
        if (mGetDefaultDataSubId != null) {
            int id = (int) mGetDefaultDataSubId.invoke(sm);
            SubscriptionInfo si = sm.getActiveSubscriptionInfo(id);
            if (si != null)
                sim = si.getSimSlotIndex();                 
            }
        } catch (Exception e) {
            e.printStackTrace();
        }                                                                    
  }                                                                   
private static Method getMethod (Class c, String name, int params) {
    Method[] cm = c.getDeclaredMethods();
    for (Method m : cm) {
        if (m.getName().equalsIgnoreCase(name)) {
            m.setAccessible(true);
            int length = m.getParameterTypes().length;
            if (length == params)
                return m;
        }
    }
    return null;
}