Hog trap door design recommendation needed...

We are going to build a door for pig trap either tomorrow or on wednesday and I need some recommendation from you guys about which is better.

We decided to use door hinge type of trap door that you can push forward and opens up but cannot be pulled back.

But my concern is, what if pigs think suspicious and don't go through that door even though I spread corns near the door and inside the trap to lure them in? Did anyone had problems like this?

Thank you very much