我想检查是否有新文件添加到 firebase 存储中

Question

I want to check whether a new file is added to Firebase Storage or not, as I will be using the test case to show the updated image in the android app developed in Java and showing no new file added if that no the case.

Answer 1

I want to check whether a new file is added to Firebase Storage or not.

If you want that, then you have to know when you have the file was added to the storage for the first time. For that, I recommend you store the details of the files either in Cloud Firestore or in the Realtime Database .

Now, when you want to upload a file, first you have to check if the file already exists, before performing the upload operation. If the file doesn't exist, then you have to upload it, otherwise, do whatever you want.