How can we upload a file from any sources (internet, file explorer etc ....) on bubble.is?

I’m a new bubble developer and I’m actually working on mobile app. So I wanna know how we can upload an image from :

• The internet
• The photo app of the mobile phone
• The file explorer (gallery)

In fact, what I want to know is that when I press on the picture uploader, it gives me the choice to upload an image from the web (on google for exemple) or by taking a photo with the photo app of the smartphone or with the file explorer (gallery).

So if you could help me, it would be nice.

Regards !

Yacine TAZDAIT