createFloating method

FloatingOverlay createFloating(
  1. Object key,
  2. FloatingOverlay floating
)

创建一个可全局管理的 FloatingOverlay

Implementation

FloatingOverlay createFloating(Object key, FloatingOverlay floating) {
  bool contains = _floatingCache.containsKey(key);
  if (!contains) {
    _floatingCache[key] = floating;
  }
  return _floatingCache[key]!;
}