Just create a property named "RootFolder" and put the lines below in the startup of your app.
The property app.RootFolder will keep the name of the root folder of your app no matter it's a standalone version (deployed), a development version (project), or an installed version ("APPS" tab of Matlab).
appName = 'TheNameOfYourApp';
% PATH SEARCH
Flag = 1;
if isdeployed
[~, result] = system('path');
app.RootFolder = char(regexpi(result, 'Path=(.*?);', 'tokens', 'once'));
if ~isfile(fullfile(app.RootFolder, sprintf('%s.exe', appName)))
Flag = 0;
end
else
prjPath = matlab.project.rootProject;
appPath = fullfile(char(com.mathworks.appmanagement.MlappinstallUtil.getAppInstallationFolder), appName);
if ~isempty(prjPath) & strcmp(prjPath.Name, appName)
app.RootFolder = char(prjPath.RootFolder);
elseif isfolder(appPath)
app.RootFolder = appPath;
else
Flag = 0;
end
end
% INITIALIZATION
if Flag
% Call others functions...
else
% Error message...
end
And then you can read your config file easily (don't forget to call it using fullfile!). For example:
app.MyConfigInfo = jsondecode(fileread(fullfile(app.RootFolder, 'Settings', 'MyConfigInfo.json')));
