This is a project using firebase storage 5.1.0.

• Pick multiple images from gallery.
  
• Upload All Images to firebase storage.
  
• Add Link for images into cloud firestore.
  
• Show uploading progress while uploading into firebase storage.
  
  

For Step By Step Guide Follow Video Tutorials:

• Firebase Storage | Upload And Retrieve Multiple Images Step By Step Tutorial

• Cloud Firestore
• Firebase Storage
• Firebase Core
• Image Picker
• Transparent Image
  
  

Feel Free to copy the code and use it.

Don't forget to star the repo and like the video :)