Check if the device is connected to WiFi access point or Mobile hotspot?

Question

Requirement:- Need to run some network calls, only when the device is only connected to an actual WiFi access point, not to a mobile hotspot or cellular data.

We need to check that the currently connected network is a mobile hotspot. Currently, I am using the below code if it is connected to WiFi or Cellular network.

    Network activeNetwork = connectivityManager.getActiveNetwork();

    NetworkCapabilities networkCapabilities = mConnectivityManager.getNetworkCapabilities(activeNetwork);

    boolean isWiFi = networkCapabilities.hasTransport(NetworkCapablities.TRANSPORT_WIFI);

To identify if the wifi connection is a mobile hotspot, I tried a workaround, by using the below method.

connectivityManager.isActiveNetworkMetered()

Along with active connection metered check, the Updated condition is as below

boolean isWiFiNotAMobileHotspot = networkCapablities.hasTransport(NetworkCapablities.TRANSPORT_WIFI) && connectivityManager.isActiveNetworkMetered();

Since isActiveNetworkMetered() only helps to identify if we are connected a metered connection (With a restriction of daily/ monthly data limits.)

So for most of the mobile hotspots, it gives the expected results but if the mobile hotspot has an unlimited data plan then isActiveNetworkMetered() returns false.

So, unfortunately, this solution is not the exact way to find if the device is connected to a mobile hotspot.

Kindly help me with the solution to check if the device is connected to a mobile hotspot or not.

Answer 1

Once there's a connection change, you can use a broadcast receiver to check whether you're connected to Wi-Fi or not.

class NetworkChangeReceiver(private val application: Application) : 
ConnectivityManager.NetworkCallback() {

private val NETWORK_CHANGE_TAG = NetworkChangeReceiver::class.java.simpleName
private var networkRequest: NetworkRequest = NetworkRequest.Builder()
.addTransportType(NetworkCapabilities.TRANSPORT_WIFI)
.build()

init {
val connectivityManager =     application.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
connectivityManager.registerNetworkCallback(networkRequest, this)
}

override fun onAvailable(network: Network?) {
super.onAvailable(network)
Timber.i(NETWORK_CHANGE_TAG.plus("onAvailable"))
application.toast("onAvailable")
}

override fun onLost(network: Network?) {
super.onLost(network)
Timber.i(NETWORK_CHANGE_TAG.plus("onLost"))
application.toast("onLost")
    }
}

To determine the operator of the connected network, you can get an account from here. Just give a call to https://ipinfo.io?token=$TOKEN with your token.

You will be given a JSON response with complete details of the network connected. For example:

ip: "115.xxx.xx.xxx"
city: ""
region: ""
country: "IN"
loc: "2x.0000,7x.0000"
asn: Object
asn: "AS18101"
name: "Reliance Communications Ltd"
domain: "reliance.com"
route: "115.xxx.xx.0/22"
type: "isp"
company: Object
name: "RCOM-Static-DIA"
domain: "reliance.com"
type: "isp"
abuse: Object
address: "Reliance Communication Ltd"
country: "IN"
email: "support@reliance.com"
name: "Antiabus"
network: "115.xxx.xx.0/20"
phone: "xx30334141-5"

You can use this service for free, if you require only less than 50K API calls per month.

Answer 2

I researched a bit on this and got to a point that all the MOBILE DEVICES use an ipv4 range of 192.168.43.1 to 192.168.43.254 so it is possible to differentiate mobile AP from ACTUAL wifi on the basis of this.

I wrote a little code to make it clear:

  WifiManager wm = (WifiManager) getApplicationContext().getSystemService(WIFI_SERVICE);
    String ip = Formatter.formatIpAddress(wm.getConnectionInfo().getIpAddress());
    System.out.println(ip);
    String []wifi_ip = ip.split(".");
    if(wifi_ip[3].equals(43)){
        if(parseInt(wifi_ip[4])>=1 && parseInt(wifi_ip[4])<=254){
            //your code goes here
        }
    }

add this to your manifest

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

What this code does ?
It actually check the device's IPv4 address and then checks whether ip of the device lies in this range or not.

Answer 3

checking the default gateway of the network solves this issue.in general,hotspots gateways are unreachable where as the routers gateways loads their default setup page or login page whenever you hit the default gateway address in the browser.

Answer 4

use this library i will update instantly.

implementation 'com.github.pwittchen:reactivenetwork-rx2:3.0.4'