How to export vairable from Live Task to Workspace

I want to develope my own Live Task for Matlab Live Editor. However I faced one problem, which is not explained in documentations (or at least I can''t find it). I want o export value from the task, back to main workspace, so it could be used by user later in .mlx file. Here is very simple example of the task, to keep it clear. It contains only one EditField and I want to export the value typed in this field back to the workspace. How to do this?

classdef TEST_exported < matlab.task.LiveTask

    % Properties that correspond to task components
    properties (Access = public)
        GridLayout      matlab.ui.container.GridLayout
        EditField       matlab.ui.control.NumericEditField
        EditFieldLabel  matlab.ui.control.Label
    end
    properties(Dependent)
        State
        Summary
    end  

    % Component initialization
    methods (Access = private)
        % Create UIFigure and components
        function createComponents(task)
            % Create GridLayout
            fig = task.LayoutManager;
            task.GridLayout = uigridlayout(fig);
            task.GridLayout.ColumnWidth = {'1x', '1x', '1x'};
            task.GridLayout.RowHeight = {'1x', '1x', '1x', '1x', '1x', '1x', '1x', '1x'};
            % Create EditFieldLabel
            task.EditFieldLabel = uilabel(task.GridLayout);
            task.EditFieldLabel.HorizontalAlignment = 'right';
            task.EditFieldLabel.Layout.Row = 3;
            task.EditFieldLabel.Layout.Column = 1;
            task.EditFieldLabel.Text = 'Edit Field';
            % Create EditField
            task.EditField = uieditfield(task.GridLayout, 'numeric');
            task.EditField.Layout.Row = 3;
            task.EditField.Layout.Column = 2;
        end
    end
        methods(Access = protected)      
        function setup(task)
            createComponents(task);
        end
    end   

    methods
        function [code,outputs] = generateCode(task)
            code = "";
            outputs = {''};
        end
        function summary = get.Summary(task)
            summary = "";
        end
        function state = get.State(task)
            state = struct;
        end        
        function set.State(task,state)            
        end	
        function reset(task)
            
        end
    end
end

I can do it "dummy way" by adding:

state.Field=task.EditField.Value;
save state state;         

To the get.State function, and load it back from state.mat file after live task/;

load state

But it is workaround, not real solution.

Answer 1

[Karol P.]

I found the solution nonetheless it is not perfect. The procedure:

function [code,outputs] = generateCode(task)
    code = "";
    outputs = {''};
end 

Supports two types of outgoing variables. The code can be use to assign variables to workspace. Here you can finde example:

code=['FieldNameInWorkspace=',num2str(task.EditField.Value)]

If you need pass several variables you can do this:

code=['Name1',num2str(task.EditField1.Value)...
    ';Name1',num2str(task.EditField2.Value)...
    ';Name1',num2str(task.EditField3.Value)]

It does not look clean, but so far I think it is the only option to do it directly. If the exported variable is non-numeric remember to convert it correctly to string/char.