When I type http://myserver.com:8080/owncloud/remote.php/webdav/ in the browser on my IPhone, it returns This is the WebDAV interface. It can only be accessed by WebDAV clients such as the ownCloud desktop sync client.
So, is that the iOS App had a bug of connecting to Server? If not, how can I resolve it ?
Correct. This file must exist and must be accessable for the app to work. This will always be the case for a default setup, maybe you didn't configure it that way due to the special port you are using ...
ok, I know how to do with it. Different from other webdav apps, the official app just need to type http://myserver.com:8080/owncloud/ to access the own Server. Because the status.php was locate at the root of the website.