iOS --- 回收键盘

//1.这个方法可以让整个view取消第一响应者，从而让所有控件的键盘隐藏。

-(void)touchesBegan:(NSSet*)touches withEvent:(UIEvent*)event{ 

 [self.view endEditing:YES];

}

//2.创建点击方法,从而实现键盘回收

-(void)TapAction:(UITapGestureRecognizer*)sender{ 

 [userNameTextField resignFirstResponder]; 

 [passWordTextField resignFirstResponder];

}