在Lollipop及更高版本上仅获得一次sdcard窗口的权限 [英] Getting only once permission for sdcard window on Lollipop and above version

问题描述

您好，我正在从SD卡中删除某些项目.在棒棒糖中，我第一次请求许可和用户授予许可，但是现在我不想每次都请求许可.这非常令人恼火，许多人对此行为感到恐惧.我该如何保存我的许可，即下次我不需要一次又一次地传递该意图

Hello I am deleting some items from SD card. And in lollipop first time i ask for permission and user grant permission, but now i don't want to ask every time for permission. Its very irritating and many of guys they afraid from this behavior. How can i save my permission i.e. next time i don't need to pass that Intent again and again

Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT_TREE);

谢谢

推荐答案

您可以使用以下代码来保留权限

You can use the following code to persist permission

 getContentResolver().takePersistableUriPermission(treeUri,
            Intent.FLAG_GRANT_READ_URI_PERMISSION |
            Intent.FLAG_GRANT_WRITE_URI_PERMISSION);

此外，一旦您保留权限，就将uri保存在sharedPreference中，以便以后无需确认即可删除文件.

Also once you persist permission save the uri in a sharedPreference so that you can delete files later without confirmation.

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