Firebase Storage Help

Hello,
How can I upload the pictures I upload to Firebase Storage with different names? And how can I view and download images on Screen1?

My blocks;

Screenshot_5

May be it help you…

I made upload image and video to firebase storage. But I want list of images and videos in the screen. And Another image or video under download button. I click this download button download image or video. @Alapjeet_Singh_RK