How to "quicksave" a file in app designer?

Hi Community,

i devellop a little app for kinematic simulation and can save the simulation result. But i have an issue with my "quicksave" button.

The role of the "quicksave" button is to first save the simulation result as an normal save function. Then if i change something in the simuation then i need to save the changes without giving one more time a new pfad. It means, that "Quicksave"-function needs to remenber the save-path and if it exists save in that path.

Now i wrote this code, but everytime i clicked on the "quicksave"-button i still need to choose the path. Can anyon have an idea, where something i'm doing wrong?

Thanks in advance for the help

% Button pushed function: SaveButton
        function SaveButtonPushed(app, event)
            if app.isNotValid
                return
            end
            
             dStr = string(datestr(now(),'yyyy-mm-dd_HH-MM'));
             sysVar = app.System;
             sysName = app.System.Name;
             [file,path] = uiputfile(".mat","Save AnimTronics System",sysName + "_" + dStr);
            % if isnumeric(file) && file == 0
             %   return
             %end
             fileName = fullfile(path,file);
             
            % File exists
            if exist(fileName,'file')
                 save(fileName,"sysVar");
            else 
                %if file does not exist
                 Call_SaveAsButtonPushed(app)
            end
        end
    end

    
    
    
    
    

Answer 1

[Matt J]

The 3rd argument to uiputfile should end with a path separation character:

[file,path] = uiputfile(".mat","Save AnimTronics System",sysName + "_" + dStr + filesep);

[Huguette Djoumsap Takam]

Thanks for your answer

I tried that, but it's not working and still asking me twice to choose the file location and the name.

Any other ideas may be?

[Matt J]

If you do not want uiputfile called at all when the path is known, then remove the line,

[file,path] = uiputfile(".mat","Save AnimTronics System",sysName + "_" + dStr);

The Call_SaveAsButtonPushed(app) callback should be responsible for recording the path in an app property,

app.savedpath=path

[Huguette Djoumsap Takam]

HI Matt,

Thanks for your answer, but it's not working.

[Huguette Djoumsap Takam]

I have another question:

how can i, for the first step, save the filepath in a private property and then check if there is anything in the property?

If there is something, then the current path will be use for saving one more time. But if there is nothing in the property, the save function will be call.

Just need some ideas.

Thanks for helping