pinch static method

Future pinch(
  1. Offset focalPoint1,
  2. Offset focalPoint2
)

Simulates a pinch gesture.

Example:

await EaseSimulator.pinch(Offset(100, 200), Offset(200, 300));

Implementation

static Future pinch(Offset focalPoint1, Offset focalPoint2) async {
  final initialDistance = (focalPoint2 - focalPoint1).distance;
  final delta = Offset(0, initialDistance * 0.1);

  await _handlePointerEvent(PointerAddedEvent(
    pointer: 11,
    position: focalPoint1,
    kind: PointerDeviceKind.touch,
  ));
  await _handlePointerEvent(PointerAddedEvent(
    pointer: 12,
    position: focalPoint2 - delta,
    kind: PointerDeviceKind.touch,
  ));

  await Future.delayed(const Duration(milliseconds: 500));

  await _handlePointerEvent(PointerMoveEvent(
    pointer: 11,
    position: focalPoint1,
    kind: PointerDeviceKind.touch,
    synthesized: true,
  ));
  await _handlePointerEvent(PointerMoveEvent(
    pointer: 12,
    position: focalPoint2,
    kind: PointerDeviceKind.touch,
    synthesized: true,
  ));

  await Future.delayed(const Duration(milliseconds: 500));

  await _handlePointerEvent(PointerRemovedEvent(
    pointer: 11,
    kind: PointerDeviceKind.touch,
  ));
  await _handlePointerEvent(PointerRemovedEvent(
    pointer: 12,
    kind: PointerDeviceKind.touch,
  ));
}