TestGesture constructor
- required EventDispatcher dispatcher,
- int pointer = 1,
- PointerDeviceKind kind = PointerDeviceKind.touch,
- int? device,
- int buttons = kPrimaryButton,
Create a TestGesture without dispatching any events from it. The TestGesture can then be manipulated to perform future actions.
By default, the pointer identifier used is 1. This can be overridden by
providing the pointer
argument.
A function to use for hit testing must be provided via the hitTester
argument, and a function to use for dispatching events must be provided
via the dispatcher
argument.
The device kind
defaults to PointerDeviceKind.touch, but move events
when the pointer is "up" require a kind other than
PointerDeviceKind.touch, like PointerDeviceKind.mouse, for example,
because touch devices can't produce movement events when they are "up".
None of the arguments may be null. The dispatcher
and hitTester
arguments are required.
Implementation
TestGesture({
required EventDispatcher dispatcher,
int pointer = 1,
PointerDeviceKind kind = PointerDeviceKind.touch,
int? device,
int buttons = kPrimaryButton,
}) : _dispatcher = dispatcher,
_pointer = TestPointer(pointer, kind, device, buttons);