如何在Flutter中删除缓存和应用程序目录

本文介绍了如何在Flutter中删除缓存和应用程序目录的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 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); } }