Как проверить подключение к Интернету в Android программно Kotlin
How to check connectivity in Android?
Kotlin :
fun isOnline(context: Context): Boolean {
val connectivityManager =
context.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
if (connectivityManager != null) {
val capabilities =
connectivityManager.getNetworkCapabilities(connectivityManager.activeNetwork)
if (capabilities != null) {
if (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR)) {
Log.i("Internet", "NetworkCapabilities.TRANSPORT_CELLULAR")
return true
} else if (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_WIFI)) {
Log.i("Internet", "NetworkCapabilities.TRANSPORT_WIFI")
return true
} else if (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_ETHERNET)) {
Log.i("Internet", "NetworkCapabilities.TRANSPORT_ETHERNET")
return true
}
}
}
return false
}
Java:
public static boolean isOnline(Context context) {
ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivityManager != null) {
NetworkCapabilities capabilities = connectivityManager.getNetworkCapabilities(connectivityManager.getActiveNetwork());
if (capabilities != null) {
if (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR)) {
Log.i("Internet", "NetworkCapabilities.TRANSPORT_CELLULAR");
return true;
} else if (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_WIFI)) {
Log.i("Internet", "NetworkCapabilities.TRANSPORT_WIFI");
return true;
} else if (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_ETHERNET)) {
Log.i("Internet", "NetworkCapabilities.TRANSPORT_ETHERNET");
return true;
}
}
}
return false;
}
both methods require the permissions:
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.INTERNET"/>
android developer