（5.17）QQ登入视图

//  ViewController.h
//  qq登入器
//
// 
Created by pg on 14-5-17.
// 
Copyright (c) 2014年 mqd. All rights reserved.
#import
<UIKit/UIKit.h>

@interface
ViewController : UIViewController <UITextFieldDelegate>

//定义输入账号
@property
(weak, nonatomic) IBOutlet UITextField *inNum;
//定义输入密码
@property (weak, nonatomic) IBOutlet UITextField
*inCode;
//定义按钮
-
(IBAction)button:(UIButton *)sender;
//定义消息输出框
@property (weak, nonatomic) IBOutlet UILabel
*outmessage;
@end

//  ViewController.m
//  qq登入器
//
// 
Created by pg on 14-5-17.
// 
Copyright (c) 2014年 mqd. All rights reserved.

#import
"ViewController.h"

@interface
ViewController ()

@end

@implementation ViewController

#pragma mark - button方法
-
(IBAction)button:(UIButton *)sender {
    //创建输入账号对象
   
NSString *num = [_inNum text];
    //创建输入密码对象
   
NSString *code = [_inCode text];
    //创建并格式化消息对象
   
NSString *messages = [NSString
stringWithFormat:@"消息：\n账号：%@\n密码：%@",num,code];
   
//调用uitextField的text方法实现数据传输
    [_outmessage
setText:messages];
  
 
   
//自动隐藏键盘
    [self.view
endEditing:YES];
  
 
}

//设置textField的回传代理
#pragma mark - 代理方法
-(BOOL)textFieldShouldReturn:(UITextField
*)textField{

   
//用户光标在上一输入框内，接受到enter则调用次方法传递响应者令牌
    if (textField == _inNum)
{
        [_inCode
becomeFirstResponder];
    }else if(textField ==
_inCode){
       
//调用button方法实现数据处理，nil无需返回值
        [self
button:nil];
      }
   
return YES;

}

@end

（5.17）QQ登入视图,布布扣,bubuko.com