fetch 方法

Future<BackgroundFetchRegistration> fetch(
  1. String id,
  2. Object requests,
  3. [Map? options]
)

实现

Future<BackgroundFetchRegistration> fetch(String id, Object requests,
    [Map? options]) {
  var options_dict = null;
  if (options != null) {
    options_dict = convertDartToNative_Dictionary(options);
  }
  return promiseToFuture<BackgroundFetchRegistration>(JS(
      "creates:BackgroundFetchRegistration;",
      "#.fetch(#, #, #)",
      this,
      id,
      requests,
      options_dict));
}