UITextFiled 文本居中显示的问题

http://www.360doc.com/content/15/0202/17/20917840_445752308.shtml

iOS 7 自动居中问题

 if([selfrespondsToSelector:@selector(setAutomaticallyAdjustsScrollViewInsets:)]) {

       self.automaticallyAdjustsScrollViewInsets=NO;

    }