如何在Flutter中删除缓存和应用程序目录 [英] How to Delete cache and app dir in flutter

问题描述

在我的flutter应用程序中，我将一些图像存储在缓存目录中，并将一些文件存储在应用程序文档目录中，现在我想给用户增加删除缓存目录和应用程序目录的可能性，我怎样才能做到这一点?

解决方案

您需要 path_provider 包

然后尝试以下代码:

  Future< void>_deleteCacheDir()异步{最后的cacheDir =等待getTemporaryDirectory();如果(cacheDir.existsSync()){cacheDir.deleteSync(recursive:true);}}Future< void>_deleteAppDir()异步{最后的appDir =等待getApplicationSupportDirectory();if(appDir.existsSync()){appDir.deleteSync(recursive:true);}} 

In my flutter app, I store some images in cache directory and some files in application document directory, now I want to add possibility to my users to delete the cache dir and app dir, How can I achieve this?

解决方案

You need path_provider package

Then try this code:

  Future<void> _deleteCacheDir() async {
    final cacheDir = await getTemporaryDirectory();

    if (cacheDir.existsSync()) {
      cacheDir.deleteSync(recursive: true);
    }
  }

  Future<void> _deleteAppDir() async {
    final appDir = await getApplicationSupportDirectory();

    if(appDir.existsSync()){
      appDir.deleteSync(recursive: true);
    }
  }

这篇关于如何在Flutter中删除缓存和应用程序目录的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！