摘要： http://blog.csdn.ofcdn.net/ch_soft/article/details/6948119-(void)registerForKeyboardNotifications{//添加自己做为观察者，以获取键盘显示时的通知[[NSNotificationCenterdefaultCenter]addObserver:selfselector:@selector(keyboardWasShown:)name:UIKeyboardDidShowNotificationobject:nil];//添加自己做为观察者，以获取键盘隐藏时的通知[[NSNotificationCente 阅读全文