Network - NKS0051
Use NetworkTools.NetworkAvailable
This analyzer provides the following strings:
Error List
Caller uses NetworkInterface.GetIsNetworkAvailable instead of NetworkTools.NetworkAvailable
Suggestion Box
Use NetworkTools.NetworkAvailable instead of NetworkInterface.GetIsNetworkAvailable
Description
While NetworkInterface.GetIsNetworkAvailable checks your network, it doesn't work on Android systems, so it's better to use NetworkTools.NetworkAvailable. Please note that this will return false if there is no connectivity for Android systems.
Extended Description
This code analyzer detects the usage of GetIsNetworkAvailable from the NetworkInterface class found in the System.Net.NetworkInformation namespace.
Normally, NetworkInterface.GetIsNetworkAvailable would return true if there are network interfaces that are ready to connect (their state is UP). However, this approach doesn't work on Android systems as Nitrocid doesn't build for Xamarin.Android, which has the necessary libraries for Java bindings to the Android API.
As a result, you'll have to use the sensible NetworkTools.NetworkAvailable property to allow you to check to see if there are ready network interfaces. Please note that if you have no working internet connection, even if your WiFi is turned on in your Android device, it'll report as false.
Analysis Comparison
To get a brief insight about how this analyzer works, compare the two code blocks shown to you below:
Before the fix
After the fix
Suppression
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Recommendation
We recommend that every caller which use this function use the recommended abovementioned method.
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