如何解決參數類型'Future<file> 功能（地圖<string, dynamic> )' 不能分配給參數類型'FutureOr<file> 在 Flutter</file></string,></file>

Question

我是飛鏢/顫振的新手，幾周以來一直遇到問題

參數類型“Future Function(Map<String, dynamic>)”不能分配給參數類型“FutureOr Function(Map<String, dynamic>,

如何解決？ 我的代碼是

File _file =
              await Executor().execute(fun1: _writeFileToDiskIsolated, arg1: data);
    
          _gotImage = _file;
        }
    
        return _gotImage;
      }
    
      static Future<File> _writeFileToDiskIsolated(
          Map<String, dynamic> data) async {
        File _theFile = File(data['path'] + 'imagetest');
        _theFile.writeAsBytes(data['response']);
        return _theFile;
      }

這是帶有紅線的編輯器問題的快照

Answer 1

只需將Future替換為FutureOr

static FutureOr<File> _writeFileToDiskIsolated(
          Map<String, dynamic> data) async {
        File _theFile = File(data['path'] + 'imagetest');
        _theFile.writeAsBytes(data['response']);
        return _theFile;
      }