registerOnTouchPinch method

void registerOnTouchPinch(
  1. TouchPinchCallback? touchPinchCallback
)

Two pointers touch pinch event.

Two fingers touch mode is enabled by performing a single pointer touch immediately followed by two pointers down, with one of the pointers close to the previous touch.

Parameters

  • IN start1 is the start position for first pointer
  • IN start2 is the start position for second pointer
  • IN end1 is the end position for first pointer
  • IN end2 is the end position for second pointer
  • IN center is the rotation center

Implementation

void registerOnTouchPinch(final TouchPinchCallback? touchPinchCallback) {
  _touchPinchCallback = touchPinchCallback;

  GemKitPlatform.instance.filterEvent(
    pointerId,
    'onTouchPinch',
    touchPinchCallback == null,
  );
}