huixiang_app/lib/utils/ImgCachePath.dart

import 'dart:io';

import 'package:path_provider/path_provider.dart';

class ImgCachePath{
  factory ImgCachePath() => _getInstance();

  static ImgCachePath get instance => _getInstance();

  static ImgCachePath? _instance;

  String? _path;

  String get path => _path ?? "";

  ImgCachePath._internal(){
    fileFromDocsDir();
  }

  fileFromDocsDir()  async {
    Directory tempDir = await getTemporaryDirectory();
    Directory directory = new Directory('${tempDir.path}/ImgCache');
    if (!directory.existsSync()) {
      directory.createSync();
    }
    _path = directory.path;
  }

  static ImgCachePath _getInstance(){
    if (_instance == null) {
      _instance = ImgCachePath._internal();
    }
    return _instance!;
  }
}