【非凡程序员】qq登陆
一.ViewController.h中代码
// // ViewController.h // QQRegLogin // // Created by jabez.huang on 15/6/15. // Copyright (c) 2015年 jabez.huang. All rights reserved. // #import <UIKit/UIKit.h> @interface ViewController : UIViewController @property (weak, nonatomic) IBOutlet UITextField *QQNumber; @property (weak, nonatomic) IBOutlet UITextField *QQPassword; @property (weak, nonatomic) IBOutlet UILabel *ResultMessage; - (IBAction)Login:(id)sender; @end
二.ViewController.m中代码
//
// ViewController.m
// QQRegLogin
//
// Created by jabez.huang on 15/6/15.
// Copyright (c) 2015年 jabez.huang. All rights reserved.
//
#import "ViewController.h"
#define PATH @"/Users/feifanchengxuyuan/Desktop/QQNumberFile.plist"
@interface ViewController ()
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
//设置QQ密码文本框为密码框
_QQPassword.secureTextEntry = YES;
// Do any additional setup after loading the view, typically from a nib.
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (IBAction)Login:(id)sender {
//注意：当文件里多次使用对象方法时，建议使用间接。
NSString *qqNumber = _QQNumber.text;
NSString *qqPassword = _QQPassword.text;
//判断QQ号码最小的位数为5位 ， QQ密码最小的位数为6位
if( ([qqNumber length] > 4 ) && ([qqPassword length] > 5)){
//创建一个NSFileManager对象
NSFileManager *fileManager = [NSFileManager defaultManager];
//创建一个文件流对象
NSData *data = [fileManager contentsAtPath: PATH];
//创建一个解档 并连接文件流
NSKeyedUnarchiver *unArchiver = [[NSKeyedUnarchiver alloc]initForReadingWithData: data];
//通过相关的key解档相关的QQ字典
NSDictionary *dict = [unArchiver decodeObjectForKey: @"QQ"];
//如果登录输入的qqNumber在字典里找到了qqPassword也就是说，qqNumber 和 qqPassword输入正确，也就是登录成功
if ( [dict[qqNumber] isEqualToString: qqPassword] ){
_ResultMessage.text = @"登录成功！";
}else{
_ResultMessage.text = @"QQ号码或QQ密码错误！";
}
}else{
_ResultMessage.text = @"QQ号码或QQ密码错误！";
}
}
@end
三.RegViewController.h
// // RegViewController.h // QQRegLogin // // Created by jabez.huang on 15/6/15. // Copyright (c) 2015年 jabez.huang. All rights reserved. // #import <UIKit/UIKit.h> @interface RegViewController : UIViewController @property (weak, nonatomic) IBOutlet UITextField *QQRegNumber; @property (weak, nonatomic) IBOutlet UITextField *QQRegPassword; @property (weak, nonatomic) IBOutlet UITextField *QQSureRegPassword; @property (weak, nonatomic) IBOutlet UILabel *ResultMessage; - (IBAction)QQRegButton:(id)sender; @end
四.RegViewController.m
//
// RegViewController.m
// QQRegLogin
//
// Created by jabez.huang on 15/6/15.
// Copyright (c) 2015年 jabez.huang. All rights reserved.
//
#import "RegViewController.h"
#define PATH @"/Users/feifanchengxuyuan/Desktop/QQNumberFile.plist"
@interface RegViewController ()
@end
@implementation RegViewController
- (void)viewDidLoad {
[super viewDidLoad];
//设置QQ号码文本框不可用，因为是自动生成的
_QQRegNumber.enabled = NO;
//设置QQ密码文本框为密码框
_QQRegPassword.secureTextEntry = YES;
//设置QQ确认密码文本框为密码框
_QQSureRegPassword.secureTextEntry = YES;
// Do any additional setup after loading the view.
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
/*
#pragma mark - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
// Get the new view controller using [segue destinationViewController].
// Pass the selected object to the new view controller.
}
*/
- (IBAction)QQRegButton:(id)sender {
//QQ密码和QQ确认密码不能小于6位
if( [_QQRegPassword.text length] < 6 || [_QQSureRegPassword.text length] < 6){
_ResultMessage.text = @"密码或确认密码小于6位";
}else if( ![_QQRegPassword.text isEqualToString: _QQSureRegPassword.text ]){ //两次输入密码不相等
_ResultMessage.text = @"两次输入密码不相等!";
}else{
//根据当前时间戳得到相关的QQ号
//注意：当申请人多的时候，建议使用毫秒来标识QQ号码唯一性
NSDate *date = [NSDate date];
NSInteger QQNumber = (long)[date timeIntervalSince1970];
//把当前生成的QQ号码写入QQ号码控件里
_QQRegNumber.text = [NSString stringWithFormat: @"%li", QQNumber];
//提取相关的已有的账号信息，防止新数据覆盖老数据，把新数据和老数据合并组合加入字典里
//创建一个NSFileManager对象
NSFileManager *fileManager = [NSFileManager defaultManager];
//创建一个NSData文件流对象
NSData *data = [fileManager contentsAtPath: PATH];
//创建一个解档对象
NSKeyedUnarchiver *unArchiver = [[NSKeyedUnarchiver alloc]initForReadingWithData: data];
//定义一个可变的字典，给予一个初始的空间
NSMutableDictionary *mudict = [NSMutableDictionary dictionaryWithCapacity:10];
//把原始老的相关账号数据放入字典临时存储
[mudict addEntriesFromDictionary: [unArchiver decodeObjectForKey: @"QQ"]]; //可变字典加入老数据
//以下为新数据，注意：写文件的时候的字典数据为新数据+老数据
NSMutableData *mudata = [[NSMutableData alloc]init];
NSKeyedArchiver *archiver = [[NSKeyedArchiver alloc]initForWritingWithMutableData: mudata];
//归档写入文件之前，先把新数据也加入可变字典，这样字典里目前就有了新数据 + 老数据
[mudict addEntriesFromDictionary:@{_QQRegNumber.text:_QQRegPassword.text} ];
//把组合好的(新数据+老数据) 归档
[archiver encodeObject: mudict forKey:@"QQ"];
//注意：必须写finishEncoding，否则可能为空
[archiver finishEncoding];
//归档以后写入文件
[mudata writeToFile:PATH atomically:YES];
//显示提示信息
_ResultMessage.text = @"注册成功!";
// NSLog( @"%@", [unArchiver decodeObjectForKey: @"QQ"] );
}
}
@end
五.跳转下一页面
添加页面View Controller,然后用Button按钮选择show,同样返回也用Button按钮选择show
六.跳转页面设置
选择右侧Custon Class中Class中的ViewController
或者新建一个,iOS->Source->Cocoa Touch Class选择UIViewController