zoomIn method

void zoomIn(
  1. double focalFraction, {
  2. double factor = 2.0,
})

Implementation

void zoomIn(double focalFraction, {double factor = 2.0}) {
  if (_disposed) return;
  if (!constraints.enablePinchZoom && !constraints.enableDoubleTapZoom) {
    return;
  }
  if (!factor.isFinite || factor <= 0 || !focalFraction.isFinite) return;
  value = value.zoomAroundFraction(focalFraction, factor);
  _applyConstraints();
}