How to get Sharing Details in App Designer

Question

Maxi 2021-2-1

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https://ww2.mathworks.cn/matlabcentral/answers/732433-how-to-get-sharing-details-in-app-designer

回答： Brian 2024-11-19

Hello,

is there a method to get the sharing details of the App Designer into my code.

For example I want to display the version and name of the app somewhere in my GUI without programming it directly. So when I create a new version of my app I only have to change the information in the sharing details and it will be updated in my GUI automatically.

Thanks!

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Anna H. 2024-7-24

I also would like to show the version in the userinterface of my app and access it programatically

Jixiong Su 2024-8-8

me too

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Answer 1

Maxi 2024-10-29

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https://ww2.mathworks.cn/matlabcentral/answers/732433-how-to-get-sharing-details-in-app-designer#answer_1538645

在 MATLAB Online 中打开

Hello everyone,

I finally have a solution to this problem! You can get the metadata of the app with the following functions.

mlappMetaDataReader = mlapp.internal.MLAPPMetadataReader("app_name");
fileInfo = mlappMetaDataReader.readMLAPPMetadata();

I will now use this procedure in the startup functions of my applications:

app_name = mfilename();
mlappMetaDataReader = mlapp.internal.MLAPPMetadataReader(app_name);
fileInfo = mlappMetaDataReader.readMLAPPMetadata();

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Francisco Sacchetti 2024-11-12

Maxi Do you have some documentation about this aproach so I can try to find out why it does not work in matlab webapp?

Thank you for your help.

Regards,

Francisco

Maxi 2024-11-13

在 MATLAB Online 中打开

Hallo Francisco,

Unfortunately, there is no "official" documentation of the class. When you type into your command window

doc mlapp.internal.MLAPPMetadataReader

you will not find many informations.

I don't know where your problem is coming from as I haven't worked with web applications before.

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Answer 2

Taylor 2024-1-23

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https://ww2.mathworks.cn/matlabcentral/answers/732433-how-to-get-sharing-details-in-app-designer#answer_1395741

When you go to package the app there is a field for the version number.

When the app is installed, the user can view the version number by hovering over the app.

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Allen 2024-1-23

@Taylor, unfortunately your answer does not address the question being presented. @Maxi in addition to the a number of other App Creators are looking for a way to programmatically extract the version information entered into Version field when packaging an application. Currently, if a creator wants to provide a version display within their application that any user can readily access, this information must be hard coded into the application.

Speaking for myself and depending on how my application will be used, I may need to package the application into an .exe file and validate that version. Validated versions much be retained for audit purposes and use in accredited testing services that we provide. These validated executables also need to provide a means to display all necessary version information from with the application itself. Executable files do not have the ability to app icon in MATLAB since they run via runtime software and not MATLAB itself. Therefore I like to include a Help>About Application menu item that will display the author, application version, MATLAB version used to create the application, and the date the application was created. If I update my application it becomes cumbersome to the have to remember each and everytime to change all of the the hard coded information.

Forgetting to update the hard code version information happens too often and may not be noticed until well after the application has been released to an end-user. By utilizing the Version field when packaging and using a programmatic extraction approach, App creators would only need to update the version number in that single location, since it is obvious the application and/or executable files store this information when being packaged.

Taylor 2024-4-16

@Maxi @Allen @Adee Is this more what you're looking for? https://www.mathworks.com/matlabcentral/answers/2050932-how-to-access-app-version-number-from-inside-the-app

Adee 2024-6-18

@Taylor, it doesn't seem to work - the code you pointed to takes the version number from the executable file, not from the app designer metadata.

The information in "Sharing details" is not propagated to the execuable file by the Matlab compiler. The version number can be specified using the "-W" switch but it still poses the problem of how to get the right number from the mlapp file...

Also, these details should preferably be available when running the app under MATLAB (before it is deployed).

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Answer 3

Brian 2024-11-19

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https://ww2.mathworks.cn/matlabcentral/answers/732433-how-to-get-sharing-details-in-app-designer#answer_1546953

在 MATLAB Online 中打开

The below function is what I use to detect the application version and compile date from within an application. This uses the xml2struct function from the File Exchange (https://www.mathworks.com/matlabcentral/fileexchange/28518-xml2struct) to parse the installer file info.

function [ver,date] = CheckAppVersion
    % This function examines the installer info to determine the version number
    % and release date of an application
    if isdeployed
        [~, result] = system('path');
        p = char(regexpi(result, 'Path=(.*?);', 'tokens', 'once'));
        xmlLocation=fullfile(p,'..','uninstall','ApplicationInstallerManifest.xml');
        appInfo=xml2struct(xmlLocation);
        ver=appInfo.ApplicationInstallerManifest.Version.Text;
        file=dir(xmlLocation);
        date=datetime(file.date);
        date=char(datetime(date,'Format','dd-MMM-yyyy'));
    else
        fullpath=mfilename('fullpath');
        s=settings;
        if ~isempty(strfind(fullpath,s.matlab.addons.InstallationFolder.ActiveValue)) % If run from app
            [p,~]=fileparts(fullpath); psplit=strsplit(p,filesep);
            p=strjoin(psplit(1:find(strcmp(psplit,'Apps'))+1),filesep);
            if isfolder(fullfile(p,'resources'))
                xmlLocation=fullfile(p,'resources','addons_core.xml');
                appInfo=xml2struct(xmlLocation);
                ver=appInfo.addonCore.version.Text;
                file=dir(xmlLocation);
                date=datetime(file.date);
                date=char(datetime(date,'Format','dd-MMM-yyyy'));
            else
                ver='debug';
                date='dd-MMM-yyyy';
            end
        else % If run from MATLAB mlapp file
            ver='debug';
            date='dd-MMM-yyyy';
        end
    end
end

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