Shielding can methods

Shielding cans can be implemented in different ways.
But how to save the thickness is the big problem.
Could you present some methods?
Requirements: (1) The thinner, the better. (2) Be tolerant with the fall drop test.
I am very appreciate your comments.

What's the latest industrial techonologies in shielding can?
Conventional methods such as spring, glue, etc.