Circuit
Here is the circuit to use to connect your soft switch to an Arduino. These swatches use the button sketch in the examples.
BUTTON
Momentary switches (aka push buttons) stay open as long as you hold them by pressing conductive materials into contact.
Demo
Construction
STROKE SENSOR
Close the circuit by pressing conductive materials into contact.
Demo
TOGGLE
Press, zip, slide, etc two pieces of conductive material together. These stay open in one position and closed in the other.