How can i add text in animated line

In this program, I have done with animated line plot, here how can i add text only when the line reaches to end or in some middle point. how can i do this?

clear all
close all
clc
figure
h = animatedline('linewidth',2);

axis([1 7 1 7])
axis ij
grid on
x=1:4;
n = 100;
xx=linspace(x(1),x(end),n);
y = [1 1 2 1];
yy = interp1(x,y,xx);
for ci=1:n
        addpoints(h,xx(ci),yy(ci));
        pause(0.03);
        drawnow
        
end

Answer 1

[Star Strider]

Try this —

figure
h = animatedline('linewidth',2);

axis([1 7 1 7])
axis ij
grid on
x=1:4;
n = 100;
xx=linspace(x(1),x(end),n);
y = [1 1 2 1];
yy = interp1(x,y,xx);
for ci=1:n
        addpoints(h,xx(ci),yy(ci));
        pause(0.03);
        drawnow
        if yy(ci) == max(y)
            text(xx(ci), yy(ci), '$\uparrow Maximum$', 'Horiz','left', 'Vert','top', 'Interpreter','latex')
        end
        if ci == n
            text(xx(ci), yy(ci), '$\leftarrow End$', 'Horiz','left', 'Vert','middle', 'Interpreter','latex')
        end
end

EDIT — (7 Jul 2021 at 16:40)

Corrected typographical error.

.

[Rajawarman Thiruselvam]

thank you!

[Star Strider]

As always, my pleasure!

.

[Rajawarman Thiruselvam]

what is meant by interpreter, latex??

[Star Strider]

The documentation section on Interpreter explains it better than I can, so I am providing a link to it.

I use it because I like the way LaTeX text looks.

[Rajawarman Thiruselvam]

how can i create movie for this program?? how can i do this?

[Star Strider]

The movie function documentation describes one approach. (That seems to be the only option.)