Multiple file upload

[Jerin_Jacob]

Hi guys,

I'm trying to integrate multiple file upload into Appinventor,

I looked into these files

• FileUploadWizard.java
• Uploader.java
• And some other related classes

The FileUploadWizard creates an input element(using FileUpload) and an upload URL and passes to Form element in Uploader.java

1. I added a property "multiple" to the FileUpload element, for multiple file selection.
2. I used the JSNI method to get the selected file names and stored as a list of strings.

Trouble

I don't know what exactly is the problem.
I don't know exactly how the Form element works.
I tired for loop to initialize Uploader for each item in the files list and it's not working.

Hope someone can help
If anyone else working on it let me know.

Google Summer of Code 2020

Multiple file uploads

There is a project with title multiple file uploads in the designer category of GSoC projects. The project definition is this: The current designer only allows uploading one asset at a time. If you need to upload 10 images, you need to do the process 10 times. It would be a much better experience to be able to upload a number of assets in one go. Expected results: An improvement in the currently existing file chooser that allows multiple uploads for assets. So, we’ve to add the functionality…

[ewpatton]

It’s been a while since I’ve looked at multi-part file uploads, but if I recall correctly the filenames should be included in the multi-part content. What I think you will need to focus on is changing the logic in the UploadServlet to handle multiple files when present in the request body.