简体   繁体   English

在android中复制数据库文件

[英]Copy a database file in android

I am developing an android application that copies a database file from /data/data/com.example/database.db 我正在开发一个从/data/data/com.example/database.db复制数据库文件的android应用程序

But it give me an access denied file 但这给了我一个拒绝访问的文件

EACCES permission denied EACCES权限被拒绝

Could anybody help me how to permit the access? 有人可以帮助我如何允许访问吗?

If you are copying you probably need the android.permission.WRITE_EXTERNAL_STORAGE permission in your manifest. 如果要复制,则清单中可能需要android.permission.WRITE_EXTERNAL_STORAGE权限。

Add this to your manifest: 将此添加到您的清单:

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

(see https://developer.android.com/guide/topics/manifest/uses-permission-element.html for how to use the uses-permission tag in the manifest) (有关如何在清单中使用uses-permission标签,请参见https://developer.android.com/guide/topics/manifest/uses-permission-element.html

Add it and let us know if you still get the error. 添加它,让我们知道您是否仍然收到错误。

声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.

 
粤ICP备18138465号  © 2020-2024 STACKOOM.COM