How does Android determine whether a mobile phone is connected to IOT platform?

During development, we often need to determine whether the mobile phone is connected to the Internet when reading the network. For how to determine whether the mobile phone is connected to the Internet, refer to the following key code:

[Java] import android. content. Context;
Import android.net. ConnectivityManager;
Import android.net. NetworkInfo;
 
Public class NetHelper {
// Whether the network is connected
Public static boolean IsHaveInternet (final Context context ){
Try {
ConnectivityManager manger = (ConnectivityManager)
Context. getSystemService (Context. CONNECTIVITY_SERVICE );
 
NetworkInfo info = manger. getActiveNetworkInfo ();
Return (info! = Null & info. isConnected ());
} Catch (Exception e ){
Return false;
}
}
}

 

From the pure soul