Hello ,
I have seen your requirement you looking to develop a social mobile application on android where user will make a account into app and after login they have dashboard page where they can manage the own profile , post videos , images and add friends , and other social activities like ,comments , chat to social network other users.
I have experienced on social application and I will make it.
You can check my work here would love to speak with you further about taking this project on.
Please share more details to check and discuss .
Looking forward with more details
Thanks