Permission can only be set at AndroidManifest.xml.

This statement is incorrect. Permissions can also be set programmatically in the code of an Android application using the Android Permissions API. This allows developers to request permission from the user at runtime, rather than at installation time, which can improve the user experience and increase the likelihood of the user granting the permission. Additionally, some permissions may be granted automatically to an application based on certain conditions, such as being pre-approved by the device manufacturer or being part of a privileged app category.

相关问题

whether Permission can only be set at AndroidManifest.xml.

No, permissions can also be requested and set dynamically at runtime using the ActivityCompat.requestPermissions() method in code. However, certain permissions, such as dangerous permissions, still require explicit user approval even if requested at runtime. Additionally, some permissions can only be set in the AndroidManifest.xml file, such as signature permissions and permissions required for certain features like camera or location services.

SystemClock: java.lang.SecurityException: setTime: Neither user 10061 nor current process has android.permission.SET_TIME.

这是一个安全异常，意味着你的应用程序没有获得设置系统时间的权限。要解决这个问题，你需要在你的AndroidManifest.xml文件中声明android.permission.SET_TIME权限。你可以在<manifest>标签中添加以下权限声明：

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

这将允许你的应用程序设置系统时间。请注意，这是一个危险权限，需要在运行时请求用户授权。因此，在使用此权限之前，你需要确保你的应用程序已经获得了这个权限。