How to check if objects are in contact?

Question

Unity

Whether I check whether there was a collision of objects through OnTriggerEnter2D,
How to check whether the object flew further after the collision, or continues to touch?

Answer 1

It is not clear how you check because there is no code. Did you mean trigger? OnTriggerEnter2D, this is when entering the trigger collider.
OnCollisionEnter2D, this is when colliders collide.
How to understand further to touch depends on your case, but instead of Enter there will be a prefix Stay. And if it touches, then set the boolean variable to true