Android中检查permission

在代码中动态的检测应用程序有没有某个permission权限：

private static void verifyPermission(Context c, String permission) {

        int p = c.getPackageManager().checkPermission(permission, c.getPackageName());
        if (p == PackageManager.PERMISSION_DENIED) {
            throw new RuntimeException("ImageLoader : please add the permission " + permission + " to the manifest");

        }

    }