implementing addDefaultNetworkActiveListener in Delphi

Question

Using the solution mentioned here, I was able to get the status of network. But I also need to implement the event for when the status changes. I know I have to use the addDefaultNetworkActiveListener procedure, but I am having trouble with the interface of OnNetworkActiveListener. Does anyone know what the interface for OnNetworkActiveListener looks like?

Thank you Sam

You've seen https://developer.android.com/reference/android/net/ConnectivityManager.OnNetworkActiveListener.html? — MartynA, Aug 21 '17 at 15:47

score 0 · Accepted Answer · answered Aug 21 '17 at 22:20

0

You'd need to construct something like this:

uses
  Androidapi.JNIBridge, Androidapi.JNI.Net;

type
  TNetworkActiveListener = class(TJavaLocal, JConnectivityManager_OnNetworkActiveListener)
  public
    procedure onNetworkActive; cdecl;
  end;

Then declare a variable:

  FNetworkActiveListener: TNetworkActiveListener;

create it and add it:

  FNetworkActiveListener := TNetworkActiveListener.Create;
  // Use the code from the other answer for GetConnectivityManager
  GetConnectivityManager.addDefaultNetworkActiveListener(FNetworkActiveListener);

answered Aug 21 '17 at 22:20

Dave Nottage

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`FNetworkActiveListener` should be declared as `JConnectivityManager_OnNetworkActiveListener` instead, since that is what `addDefaultNetworkActiveListener()` is expecting. And just like in Win32, you shouldn't mix object references and interface references (even if the reference counting issue is not a problem in mobile). – Remy Lebeau Aug 21 '17 at 22:26
@RemyLebeau Not saying that it isn't a problem, however you might like to report that as such for all the instances that EMBT do the same in the RTL/FMX units – Dave Nottage Aug 22 '17 at 01:11

implementing addDefaultNetworkActiveListener in Delphi

1 Answers1