decodeBytes method

MMBuffer? decodeBytes(String key)

Decoding bytes.

You can decode bytes from MMKV, then deserialize an object from the bytes.

// assume using protobuf https://developers.google.com/protocol-buffers/docs/darttutorial
final bytes = mmkv.decodeBytes('bytes');
if (bytes != null) {
  final list = bytes.asList();
  final object = MyClass.fromBuffer(list);

  // Must [destroy()] after no longer use.
  bytes.destroy();
}

Implementation

MMBuffer? decodeBytes(String key) {
  final keyPtr = key.toNativeUtf8();
  final lengthPtr = calloc<Uint64>();

  final ret = _decodeBytes(_handle, keyPtr, lengthPtr);
  calloc.free(keyPtr);

  if (/*ret != null && */ ret != nullptr) {
    final length = lengthPtr.value;
    calloc.free(lengthPtr);
    if (Platform.isIOS || length == 0) {
      return MMBuffer._copyFromPointer(ret, length);
    } else {
      return MMBuffer._fromPointer(ret, length);
    }
  }
  calloc.free(lengthPtr);
  return null;
}