Famous FB Messenger Floating Chat Head UI Developed In Flutter : Free Flutter Source Code

messenger chat head

tried to download the famous chat heads by facebook messenger using flutter.

as far as i’m aware of what can be improved here:

make the chat head float even when the app is closed
chat messages list starts from the top, it must start from the bottom as in real messenger
ondragend() while exiting the chat head can be improved for better floating location
inital floating location can be saved as the last floating location left by the user
appearing of chat head body can also be imporoved