Hi guys I am making a wallpaper android app.I have stored all my images in firebase storage. Now I have a recyclerview and want to retrieve each of the images into that recyclerView by getting list url of the folders.Is there any way to do that without using the database.I have pasted the json file into my app.
In order to download a image/images from Firebase Storage, you first need to have the corresponding url/urls. To download an image, it requires four steps:
Upload the image to Firebase Storage.
Save the corresponding URL to Cloud Firestore/Firebase Database database while uploading.
Attach a listener on the folder you have saved the image.
Display the image.
So there is no way in which you can download an image without knowing the URL. You cannot get the image list URL directly from Firebase Storage.
First at all you need to have corresponding URLs of your image data stored in Firebase, as mention Alex Mamo. You can build list of this urls during upload or copy them from Firebase Console. Storage API doesn't provide any way how to retreive list of stored files.
Also, you can find Download URL in Image detail/properties. Then you can insert urls into JSON file (or another file, service, firebase storage, whatever) and load them in app.
But be careful, this is not a good idea because Firebase Storage (especially spark plan has limits) allow you download 1GB/day and only 50k/day (download/upload) operations. That will be wasted pretty soon if you don't optimise your data and number of reading operations.
Tip: When you select pay as you go most expensive is GB Downloaded, so you absolutely should store at least 1 thumbnail which will be shown in your recycler view.
Related
I am really confused about the process of retrieving and displaying images to your android app from firebase cloud storage. I looked around the web, but am unable to get a definitive answer to my questions.
With regards to my app, I simply want a place to store a bunch of images (around 2500) that I can display. I don't use authentication and I don't mind making these images public.
Do I have to request a download URL every time I want to retrieve an image from storage? I am worried because Firebase Storage allows you to download 1GB/day and only 50k/day download operations for free, which is not a lot of download operations for 2500 images.
Is there a way for me to access and display images without having to call reference.getDownloadUrl() ** every time I display an image?** Maybe some sort of workaround by making the images public and then storing the cloud storage URLs in a Room Database?
Any help is appreciated.
Do I have to request a download URL every time I want to retrieve an image from storage?
No, you can use the same URL repeatedly. Store that URL anywhere you like. But you will always pay the cost for egress every time the URL is accessed. There are no free downloads after the free allowance.
Is there a way for me to access and display images without having to call reference.getDownloadUrl() every time I display an image?
No, as I said above, you can reuse the same URL if you want. You can also configre the entire cloud storage bucket as public and simply build URLs to object as described in the links here. But again, downloads will be billed according to the normal Cloud Storage rates.
Please enable Firebase Storage for your bucket by visiting the Storage tab in the Firebase Console and ensure that you have sufficient permission to properly provision resources.",
"status": "ACCESS_BUCKET"
I am successfully able to upload an image to firebase and retrieve it also.
My issue is,
I want the uploaded image to not be visible in storage section even for the admin.
Is there a method from which i can Encrypt the Image and store in firebase?
or,
Is there any rules that has to changed for it to work like my requirement?
Thanks in Advance
Firebase Storage can be used to store any type of binary data. So if you don't want the images to be visible by a collaborator on the Firebase project, you can encrypt the data on the client that uploads the data and then decrypt the data on any client that reads it.
This requires no changes to the security rules, as those don't access the binary data of the files.
How can i retrieve 1 image at a time using Picasso to display as a Profile Picture of currently logged-in user??
I saw many other solutions on stackoverflow but all of them were related to Recycler View for displaying all images in list format.
In short how can I make a reference to Firebase Storage to fetch image?
Thanks in advance.
In short, how can I make a reference to Firebase Storage to fetch the image?
In order to be able to get an image from Firebase Storage, you need to know its path. If you need to get that path directly from the Firebase Console, you should click on an image, and on the right-hand side will see a section named File location. Inside this section, under the Access token, you'll see the actual access token of the image. Simply clicking on the token, will copy the entire download URL in the clipboard. Paste it in your project and that's it.
If you need it programmatically, please check my answer from the following post:
How to get the download url from Firebase Storage?
I want to retrieve the image of the connected user like on play stores app in drawer menu but not a success and I don't know how to proceed. I have succeeded to show the user's name and email but not the image.
Imagining you have url of the images stored in firebase server you can use GLIDE library (library link) to download and display the images from any server not only firebase
If you don't have the image stored in database then you should first store it and then retrieve it from url. you can learn how to do it from here
I am creating an Android App where Firebase is the backed. In my app, I have some selected images that I have stored inside my Firebase storage by direct uploading (Without coding).
Now I have to view that images in my app through a recycle view. For that purpose, I have to get the download URL of all the images and put them into my Firebase real-time database programmatically so that I can access the URL to my app. Is there any methods available for that?
I have tried to iterate through storage, unfortunately there is no method for that.
There is currently no way to iterate a list of files in Firebase Storage using the Firebase SDKs. Instead, after you upload a file, you should also store its download URL in Firebase Realtime Database (or some other place) that you can query for the download URLs.
I was searching for a proper answer to this question for 2 days. What i found is, There is no proper API or Class in Firebase Storage for the same purpose. If you guys want to do the same effectively, get the files in your code programmatically and upload them to firebase storage through a loop. Through that you can get the download links after uploading of each files. Store it in the Real time Database of Firebase.
You can create a function that can can return a file. You can set up a /link url in the hosting to that function.