animation timer bar graph matlab app designer in matlab

main.m
classdef TimerBarGraph < matlab.apps.AppBase

    properties (Access = private)
        Timer
        TimerPeriod = 0.1;
        Iteration = 0;
        MaxIterations = 100;
    end

    methods (Access = private)

        function updatePlot(app)
            app.Iteration = app.Iteration + 1;
            bar(app.UIAxes, app.Iteration, 'b');
            ylim(app.UIAxes, [0, app.MaxIterations]);
            drawnow;

            if app.Iteration >= app.MaxIterations
                stop(app.Timer);
            end
        end

        function TimerFcn(app, ~, ~)
            updatePlot(app);
        end

        function startTimer(app, ~, ~)
            app.Timer = timer('ExecutionMode', 'fixedRate', 'Period', app.TimerPeriod, 'TimerFcn', @app.TimerFcn);
            start(app.Timer);
        end

    end

    % Callbacks that handle component events
    methods (Access = private)

        % Button pushed function: StartButton
        function StartButtonPushed(app, ~, ~)
            app.startTimer();
        end

        % Button pushed function: StopButton
        function StopButtonPushed(app, ~, ~)
            stop(app.Timer);
        end

        % Close request function: UIFigure
        function UIFigureCloseRequest(app, ~, ~)
            if isvalid(app.Timer)
                stop(app.Timer);
                delete(app.Timer);
            end
            delete(app);
        end
    end

end
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