recently added an implementation of a
which is pretty cool and very timely since we are just about to release our own socket library and unlike his work which supports all Codename One targets we currently only support iOS & Android.
At the moment we only support TCP sockets, we support server socket (listen/accept) on Android but not on iOS. You can check if Sockets are supported using the Socket.isSupported() and whether server sockets are supported using Socket.
To use sockets you can use the Socket.connect(String host, int port, SocketConnection eventCallback) method. To listen on sockets you can use the Socket.listen(int port, Class scClass) method which will instantiate a SocketConnection instance (scClass is expected to be a subclass of SocketConnection) for every incoming connection.
This simple example allows you to create a server and a client assuming the device supports both:
Unfortunately for the complex use cases up until now when we customized a tree entry one had to override the method: protected Button createNodeComponent(Object node, int depth), which relies on the Tree’s usage of buttons. So that method is now deprecated (although it will still work for now).
You should now override:
protected Component createNode(Object node, int depth), which allows you to return any component type. However, the tree needs methods to receive a click event from the node and to set an icon both of which aren’t available in Component. So for that purpose you might need to override: protected void bindNodeListener(ActionListener l, Component node), and: protected void setNodeIcon(Image icon, Component node). Just override them to support your custom component type unless its a Button/SpanButton (or subclass) both of which are supported.
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