android - Set File Permissions on aosp

Question

I need to set new permissions on some files in aosp. I am using FileUtils.setPermissions(). But when I make a check using FileUtils.getPermissions I get the same permissions always as "33188" and I want it to be 0777.

How can I do it. BTW I am doin this operation in PacakageManagerService.java.

Answer 1

您应该首先构建应该传递给的所需值FileUtils.setPermission。例如，在您的情况下，代码可能如下：

int perm = FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IRWXO;
FileUtils.setPermissions(fileName, perm, ...);