CODEWITHSUNDEEP
androidkotlin
androidzzaza99
androidzzaza99

Reputation: 47

Android check internet connection in kotlin

I need to check if the device have internet connection, I search for some examples but when i copy and paste the code i always get errors or deprecated function. I also not understand where I have to put the method that check the connection, because I need to check the internet connection in the viewModel to make some request, and all the methods that i found have Context in the parameters, and I can't get Context in viewModel.

I try this code but I don't understand where I have to put it and I get

'TYPE_WIFI, TYPE_MOBILE, TYPE_ETHERNET: Int' is deprecated. Deprecated in Java

private fun isInternetAvailable(context: Context): Boolean {
        var result = false
        val connectivityManager =
            context.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            val networkCapabilities = connectivityManager.activeNetwork ?: return false
            val actNw =
                connectivityManager.getNetworkCapabilities(networkCapabilities) ?: return false
            result = when {
                actNw.hasTransport(NetworkCapabilities.TRANSPORT_WIFI) -> true
                actNw.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR) -> true
                actNw.hasTransport(NetworkCapabilities.TRANSPORT_ETHERNET) -> true
                else -> false
            }
        } else {
            connectivityManager.run {
                connectivityManager.activeNetworkInfo?.run {
                    result = when (type) {
                        ConnectivityManager.TYPE_WIFI -> true
                        ConnectivityManager.TYPE_MOBILE -> true
                        ConnectivityManager.TYPE_ETHERNET -> true
                        else -> false
                    }

                }
            }
        }

        return result
    }

Someone can explain me how to make this check?

Upvotes: 3

Views: 5352

Answers (2)

Mert KARADENIZ
Mert KARADENIZ

Reputation: 71

You have to extend AndroidViewModel() class. After that you can reach application context in your viewModel.

class viewModel(app: Application): AndroidViewModel(app) {}

Upvotes: 1

Eyosiyas
Eyosiyas

Reputation: 1497

I created a helper class. Network.kt

object Network {
    private const val NETWORK_STATUS_NOT_CONNECTED = 0
    private const val NETWORK_STATUS_WIFI = 1
    private const val NETWORK_STATUS_MOBILE = 2
    private const val TYPE_WIFI = 1
    private const val TYPE_MOBILE = 2
    private const val TYPE_NOT_CONNECTED = 0
    private fun connectivityStatus(context: Context): Int {
        val connectivityManager = context.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
        val activeNetwork = connectivityManager.activeNetworkInfo
        if (null != activeNetwork) {
            if (activeNetwork.type == ConnectivityManager.TYPE_WIFI) return TYPE_WIFI
            if (activeNetwork.type == ConnectivityManager.TYPE_MOBILE) return TYPE_MOBILE
        }
        return TYPE_NOT_CONNECTED
    }


    private fun connectivityStatusString(context: Context): Int {
        val connection = connectivityStatus(context)
        var status = -1
        if (connection == TYPE_WIFI) status = NETWORK_STATUS_WIFI else if (connection == TYPE_MOBILE) status = NETWORK_STATUS_MOBILE else if (connection == TYPE_NOT_CONNECTED) status = NETWORK_STATUS_NOT_CONNECTED
        return status
    }

    fun checkConnectivity(context : Context):Boolean{
        val status = connectivityStatusString(context)
        return status == NETWORK_STATUS_WIFI || status == NETWORK_STATUS_MOBILE
    }
}

and to access it you need to use it like this

if (Network.checkConnectivity(this@MainActivity))
    \\Internet is working
else
    \\No internet connectivity

Upvotes: 3

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