handleBack method

LmBackResult handleBack({
  1. LmNavigationSource source = LmNavigationSource.systemBack,
})

Implementation

LmBackResult handleBack({
  LmNavigationSource source = LmNavigationSource.systemBack,
}) {
  assert(
    source == LmNavigationSource.systemBack ||
        source == LmNavigationSource.gestureBack ||
        source == LmNavigationSource.programmaticPop,
    'Back handling should use a back-like navigation source.',
  );
  return pop() ? LmBackResult.handled : LmBackResult.allowSystem;
}