Pause and restart when my app finished

How can I pause the matlab script until I've closed a matlab app?

In my case, I've an app that serves to select the input of my calculations, but while I'm choosing the input the script continues to run. I need to suspend the script until the user has finished to select the input.

What can I do?

[Geoff Hayes]

Alessandro - you may need to post some code. How are you setting/choosing the inputs? Which part of the script is running?

[Alessandro Alberico]

My script in matlab is this

d=fopen('nomi piattaforme.txt');
c=textscan(d,'%s','Delimiter',',');
run scelta.mlapp

a=1;
...

In the app, the lines the make it close are:

% Button pushed function: ConfermaButton
function ConfermaButtonPushed(app, event)
    assignin('base','producer',app.Prod_selection.Value)        
    assignin('base','panel',app.Panel_selection.Value);        
    assignin('base','platform',app.Platform_selection.Value);                  
    delete(app.Selezione)                                       
end

In 'scelta.mlapp' the user must choose through 3 dropdown menu the parameters that I need for the next steps. Actually, I haven't write my complete code yet, but, anyway I need to get the three outputs before 'a=1'.

e.g.: once, in the script, I tried to use one of these parameters some lines below, and it gave me an error saying that 'panel' was not defined yet, beacuse it actually doesn't exist yet, I haven't yet chosen the parameter from the app.

I hope that it is clearer

[Alessandro Alberico]

Now I tried to use a 'flag' in this way, and it's quite satisfying:

flag=0;
d=fopen('nomi piattaforme.txt');
c=textscan(d,'%s','Delimiter',',');
run scelta.mlapp

while flag==0
    pause(5);
end

a=1

And at the end of the app I assigned to 'flag' the value 1 with "assignin".

Maybe it is not the smartest way, but it works enough...

Answer 1

[Marc Youcef]

There is indeed cleaner way, as explained here:

https://nl.mathworks.com/matlabcentral/answers/317916-how-do-i-wait-for-an-appdesigner-pushbutton-press-from-a-script

my_app_handle = my_app;
uiwait(my_app_handle.UIFigure_property)
disp("hello")
hello