android - Flutter - Get all images from firebase storage

Question

I am manually upload my images to firebase storage console in web. I want to download all images to my flutter android app. But it is getting only one image at a time with getDownloadUrl() method.

In android, listAll() method List all items (files) and prefixes (folders) under this StorageReference.

Like this, anyone suggest me in flutter.

I saw stack over flow answers like there is no api for download all images at once. But any suggestion/ideas would be great.

Answer 1

Finally got the solution.

Flutter package firebase_storage: ^3.0.6 has no method called listAll(). Only able to get single file/image download url using getDownloadURL() method from firebase storage.

Recently (19 hours ago, 16th Oct 2019) flutter team has added this functionality to get all files and folders using listAll() method. Below is the git link.

https://github.com/FirebaseExtended/flutterfire/pull/232

Need to use package in pubspec.yaml like below :

firebase_storage:
    git:
      url: git://github.com/danysz/flutterfire.git
      ref: master
      path: packages/firebase_storage

This is temporary solution until they update this package version firebase_storage: ^3.0.6

Example Code : 

void getFirebaseImageFolder() {
    final StorageReference storageRef =
        FirebaseStorage.instance.ref().child('Gallery').child('Images');
    storageRef.listAll().then((result) {
      print("result is $result");
    });
  }

Hope it will be useful for many people. Happy coding!