Android偏好特定权限请求

Question

只有当用户启用某个偏好时，才有办法请求特定权限吗？

在我的情况下，我可以选择与日历同步来添加日期和设置提醒（据我所知，您不能在具有意图的日历中设置提醒）。显然，我需要访问日历的权限，但只有在用户启用此选项时才有效。我希望在用户启用首选项时请求权限，然后在未授予权限的情况下禁用该选项。

Answer 1

不幸的是，没有办法做到这一点。

No checks with the user are done while an application is running: it either was granted a particular permission when installed, and can use that feature as desired, or the permission was not granted and any attempt to use the feature will fail without prompting the user.

http://developer.android.com/guide/topics/security/permissions.html