platform<T> function Null safety

Future<T> platform<T>(
  1. {_FutureCallback<T>? android,
  2. _FutureCallback<T>? ios}
)

Implementation

Future<T> platform<T>({
  _FutureCallback<T>? android,
  _FutureCallback<T>? ios,
}) async {
  // 方法单位的释放池, 如果需要的时候可以在这里直接释放, 不使用这个释放池的话可以使用[ScopedReleasePool]
  final releasePool = <Ref?>{};
  try {
    if (android != null && Platform.isAndroid) {
      return await android(releasePool);
    } else if (ios != null && Platform.isIOS) {
      return await ios(releasePool);
    } else {
      return Future.value();
    }
  } catch (e) {
    return Future.error(e);
  } finally {
    if (releasePool.isNotEmpty) {
      await releasePool.whereType<Ref>().release_batch();
      releasePool.clear();
      // remove all local object from global object pool
      gGlobalReleasePool.removeAll(releasePool);
    }
  }
}