GestureDetector class Null safety. A widget that detects gestures . Attempts to recognize gestures that correspond to its non-null callbacks. If this widget has a child, it defers to that child for its sizing behavior.
GestureDetector class Null safety. A widget that detects gestures . Attempts to recognize gestures that correspond to its non-null callbacks. If this widget has a child, it defers to that child for its sizing behavior.