toString method
Converts the GesturePattern to a string representation.
Example:
If the pattern is [GestureType.rightSwipe, GestureType.leftSwipe, GestureType.tap, GestureType.long]
,
calling toString()
will return ><.-
.
Implementation
@override
String toString() {
return pattern.map((gestureType) => gestureType.string).join();
}