Matlab makes the loops run simultaneously

Question

Unfortunately, I have two loops. that\'s why my code makes the first loop run and only when it is finished, it makes the second loop run.

But I want the gui to show the

Answer 1

Is this what you want? Just combine the loop bodies.

for i=1:200
    if mod(i,2) == 0
        set(hAxes,'Color','b');
    else
        set(hAxes,'Color','g');
    end

    image2 = horzcat('now processing ', 'image', num2str(i), '.jpg of 200 images');
    set(loading1,'string',image2);
    drawnow;
end

EDIT: OK, in that case, try a timer instead of the first loop

function output = main_function

% Your other setup calls
hAxes = axes('Parent',hFigure,'Units','pixels','Position',[0 112 424 359]); 

c = 0;
t = timer('TimerFcn', @color_change_fcn, 'Period', 1.0);
start(t);

for i=1:200
    image2 = horzcat('now processing ', 'image', num2str(i), '.jpg of 200 images');
    set(loading1,'string',image2);
    drawnow;
end

function color_change_fcn
    if mod(c,2) == 0
        set(hAxes,'Color','b');
    else
        set(hAxes,'Color','g');
    end
    drawnow;
    c = c + 1;
end
end

Just remember that the MATLAB control flow is inherently single-threaded, so these callbacks won't run if MATLAB is busy working somewhere else.