public static bool DetectNetwork(Activity activity)
{
//var activity = this.Context as Activity;
//public static bool DetectNetwork()
//{
Android.Net.ConnectivityManager connectivityManager = (Android.Net.ConnectivityManager)activity.GetSystemService(Activity.ConnectivityService);
Android.Net.NetworkInfo activeConnection = connectivityManager.ActiveNetworkInfo;
//Usado apenas para analisar todos os tipos de conexao.
//Android.Net.NetworkInfo[] activeConnection1 = connectivityManager.GetAllNetworkInfo();//.ActiveNetworkInfo;
bool isOnline = (activeConnection != null) && activeConnection.IsConnected;
if (isOnline)
{
// Display the type of connection
//Android.Net.NetworkInfo.State activeState = activeConnection.GetState ();
//_connectionType.Text = activeConnection.TypeName;
// Check for a WiFi connection
Android.Net.NetworkInfo wifiInfo = connectivityManager.GetNetworkInfo(Android.Net.ConnectivityType.Wifi);
if (wifiInfo.IsConnected)
{
//Wifi connected
return(true);
}
else
{
//Wifi disconnected
// Check if roaming or mobile
Android.Net.NetworkInfo mobileInfo = connectivityManager.GetNetworkInfo(Android.Net.ConnectivityType.Mobile);
if (mobileInfo.IsRoaming || mobileInfo.IsConnected)
{
//roaming or mobile connected.
return(true);
}
else
{
//roaming or mobile disconnected
return(false);
}
}
}
else
{
return(false);
}
}
public static void ExecuteNetworkCommand(ExecuteNetworkDelegate command, object connManager)
{
#if Android
if (Android.OS.Build.VERSION.SdkInt < Android.OS.BuildVersionCodes.Lollipop)
{
command();
return;
}
Android.Net.Network bindNetwork = null;
Android.Net.ConnectivityManager connectivityManager = connManager as Android.Net.ConnectivityManager;
// ReSharper disable once UseNullPropagation
if (connectivityManager != null)
{
Android.Net.Network[] networks = connectivityManager.GetAllNetworks();
if (networks != null)
{
foreach (Android.Net.Network network in networks)
{
Android.Net.NetworkInfo networkInfo = connectivityManager.GetNetworkInfo(network);
Android.Net.NetworkCapabilities networkCapabilities = connectivityManager.GetNetworkCapabilities(network);
// HasTransport support started also with Lollipop
if (networkInfo != null && networkInfo.IsConnected &&
networkCapabilities != null && networkCapabilities.HasTransport(Android.Net.TransportType.Wifi))
{
bindNetwork = network;
break;
}
}
}
}
if (Android.OS.Build.VERSION.SdkInt < Android.OS.BuildVersionCodes.M)
{
#pragma warning disable 618
Android.Net.Network defaultNetwork = Android.Net.ConnectivityManager.ProcessDefaultNetwork;
try
{
Android.Net.ConnectivityManager.SetProcessDefaultNetwork(bindNetwork);
command();
}
finally
{
Android.Net.ConnectivityManager.SetProcessDefaultNetwork(defaultNetwork);
}
#pragma warning restore 618
return;
}
Android.Net.Network boundNetwork = connectivityManager?.BoundNetworkForProcess;
try
{
connectivityManager?.BindProcessToNetwork(bindNetwork);
command();
}
finally
{
connectivityManager?.BindProcessToNetwork(boundNetwork);
}
#else
command();
#endif
}
public static bool IsNetworkAvailable(Android.Net.ConnectivityManager connectivityManager)
{
if (connectivityManager == null)
{
throw new ArgumentNullException(nameof(connectivityManager));
}
//When on API 21+ need to use getAllNetworks, else fall base to GetAllNetworkInfo
//https://developer.android.com/reference/android/net/ConnectivityManager.html#getAllNetworks()
if (Android.OS.Build.VERSION.SdkInt >= Android.OS.BuildVersionCodes.Lollipop)
{
foreach (var network in connectivityManager.GetAllNetworks())
{
var info = connectivityManager.GetNetworkInfo(network);
if (info?.IsConnected ?? false)
{
return(true);
}
}
}
else
{
var info = connectivityManager.ActiveNetworkInfo;
return(info?.IsConnected ?? false);
}
return(false);
}
public static void ExecuteNetworkCommand(ExecuteNetworkDelegate command, object connManager, bool checkEthernet = false)
{
#if Android
if (Android.OS.Build.VERSION.SdkInt < Android.OS.BuildVersionCodes.Lollipop)
{
command();
return;
}
Android.Net.Network bindNetwork = null;
Android.Net.ConnectivityManager connectivityManager = connManager as Android.Net.ConnectivityManager;
// ReSharper disable once UseNullPropagation
if (connectivityManager != null)
{
Android.Net.Network[] networks = connectivityManager.GetAllNetworks();
if (networks != null)
{
foreach (Android.Net.Network network in networks)
{
Android.Net.NetworkInfo networkInfo = connectivityManager.GetNetworkInfo(network);
Android.Net.NetworkCapabilities networkCapabilities = connectivityManager.GetNetworkCapabilities(network);
// HasTransport support started also with Lollipop
if (networkInfo != null && networkInfo.IsConnected && networkCapabilities != null)
{
bool linkValid = false;
bool autoIp = false;
Android.Net.LinkProperties linkProperties = connectivityManager.GetLinkProperties(network);
foreach (Android.Net.LinkAddress linkAddress in linkProperties.LinkAddresses)
{
if (linkAddress.Address is Java.Net.Inet4Address inet4Address)
{
if (inet4Address.IsSiteLocalAddress || inet4Address.IsLinkLocalAddress)
{
linkValid = true;
autoIp = inet4Address.IsLinkLocalAddress;
break;
}
}
}
if (linkValid)
{
if (networkCapabilities.HasTransport(Android.Net.TransportType.Wifi))
{
bindNetwork = network;
}
if (checkEthernet && networkCapabilities.HasTransport(Android.Net.TransportType.Ethernet))
{
if (autoIp)
{
// prefer Ethernet auto ip
bindNetwork = network;
break;
}
if (bindNetwork == null)
{
// prefer Wifi
bindNetwork = network;
}
}
}
}
}
}
}
if (Android.OS.Build.VERSION.SdkInt < Android.OS.BuildVersionCodes.M)
{
#pragma warning disable 618
Android.Net.Network defaultNetwork = Android.Net.ConnectivityManager.ProcessDefaultNetwork;
try
{
Android.Net.ConnectivityManager.SetProcessDefaultNetwork(bindNetwork);
command();
}
finally
{
Android.Net.ConnectivityManager.SetProcessDefaultNetwork(defaultNetwork);
}
#pragma warning restore 618
return;
}
Android.Net.Network boundNetwork = connectivityManager?.BoundNetworkForProcess;
try
{
connectivityManager?.BindProcessToNetwork(bindNetwork);
command();
}
finally
{
connectivityManager?.BindProcessToNetwork(boundNetwork);
}
#else
command();
#endif
}