How do I have images in my firebase rtdb to my listview

[I_need_to_complete]

hi, i tried optimizing the image with the extension :

Image optimizer : Optimize images and reduce it's size

Introduction An extension to optimize images and reduce their size with loosing very little details! If you want to upload it to the web database then you can optimize it and upload. It will save space in the database. Required permissions: android.permission.READ_EXTERNAL_STORAGE android.permission.WRITE_EXTERNAL_STORAGE Documentation Each block's purpose and its work [optimizedimage] Raised when the image is optimized image: optimized image path size: optimized image size in by…

but it shows an error "operation not permitted" even though it asked for read and write external storage and I allowed it