IOS项目-处女作

浏览数：23 / 时间：2015年06月11日

我最近一直都有在看关于IOS项目的知识，今天也总算是迎来了我的第一个IOS项目。不巧这个项目并不是从头开始开发，而是在基础上维护并添加一些模块。

技术分享

噗~不管怎么样，还是来分析分析一下源码吧~我这里首先看到的是AppDelegate_iPad.m下的didFinishLaunchingWithOptions方法，这个方法顾名思义应该是应用启动加载完成后所执行的一个方法。

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    //[NSUserDefaults standardUserDefaults] 获取用户的一些配置信息
    if([[[NSUserDefaults standardUserDefaults] stringForKey:@"AddresstheText"] length]==0){
        [[NSUserDefaults standardUserDefaults] setObject:@"http://xxxx.com" forKey:@"AddresstheText"];
        [[NSUserDefaults standardUserDefaults] synchronize];
    }
    [[NSUserDefaults standardUserDefaults] setObject:@"wangmin" forKey:@"userNameValue"];
    [[NSUserDefaults standardUserDefaults] setObject:@"1111" forKey:@"useridValue"];
    [[NSUserDefaults standardUserDefaults] synchronize];
    
    FFADSViewController * controller = [[[FFADSViewController alloc] init] autorelease];
    //initWithRootViewController的参数API是这样说的，大概就是什么controller都可以，但不能是tabbarcontroller
    //The root view controller that is pushed on the stack with no animation. It cannot be an instance of tab bar controller.
    UINavigationController * nav = [[UINavigationController alloc] initWithRootViewController:controller];
    //不要显示navigationcontroller的bar
    [nav setNavigationBarHidden:YES];
    //UIDevice可以获取当前设备信息
    if ( [[UIDevice currentDevice].systemVersion floatValue] < 6.0){
        [self.window addSubview:nav.view];
    }else{
        self.window.rootViewController = nav;
    }    
    [self.window makeKeyAndVisible];    
    return YES;
}

接下来稍微的扫一下盲，NSUserDefualts standardUserDefualts是什么呢？

NSUserDefaults standardUserDefaults用来记录一下永久保留的数据非常方便，不需要读写文件，而是保留到一个NSDictionary字典里，由系统保存到文件里，系统会保存到该应用下的/Library/Preferences/gongcheng.plist文件中。需要注意的是如果程序意外退出，NSUserDefaultsstandardUserDefaults数据不会被系统写入到该文件，不过可以使用［[NSUserDefaultsstandardUserDefaults] synchronize］命令直接同步到文件里，来避免数据的丢失。

接下来我们来看FFADSViewController~!往下走!GO!

#import "FFADSViewController.h"
#import "FFLrcController.h"

@implementation FFADSViewController

-(void)viewWillAppear:(BOOL)animated{
    [super viewWillAppear:YES];
    [self.navigationController setNavigationBarHidden:YES animated:NO];
}
//这个页就相当于app进入login页面之前，需要缓冲一些数据会在这个页面停留1-2秒种
- (void)loadView {
    [super loadView];
    CGRect frame = CGRectMake(0, 0, 768, 1024);
    UIImage * image = [UIImage imageNamed:@"ipadguodu"];
    UIImageView * imageView = [[UIImageView alloc] initWithImage:image];
    CGRect imageFrame = frame;
    imageView.frame = imageFrame;
    imageView.tag = 100;
    //addSubview 添加子视图
    [self.view addSubview:imageView];
    [imageView release];
    //延迟2秒钟后执行toController
    [self performSelector:@selector(toController) withObject:nil afterDelay:2];
}
-(void)toController{
    FFLrcController *publish = [[FFLrcController alloc]init];
    UINavigationController *nav = [[UINavigationController alloc]initWithRootViewController:publish];
    //presentModalViewController：弹出视图
    [self presentModalViewController:nav animated:NO];
    [publish release];
}
- (void)dealloc {
    [super dealloc];
}
@end

这个controller很简单，继续往下走FFLrcController估计就是登录页面了，真是不容易啊!走了好多路才到了登录界面。登录页面首先执行的是loadView事件

注：remember、login、personnumber、password、state等属性都已经在FFLrcController.h中定义

- (void)loadView {
    [super loadView];//隐藏导航bar
    [self.navigationController setNavigationBarHidden:YES animated:NO];
    //设置背景颜色
    self.view.backgroundColor=[UIColor colorWithRed:235/255.0 green:232/255.0 blue:222/255.0 alpha:1];
     //label，设置相应的字体颜色背景等等信息
    UILabel *remember=[[UILabel alloc]initWithFrame:CGRectMake(100, 733, 150, 30)];
    remember.textColor=[UIColor colorWithRed:189/255.0 green:183/255.0 blue:167/255.0 alpha:1];
    remember.text=@"记住登录状态";
    [self.view addSubview:remember];
    [remember release];

    //登陆
    login = [[UITextField alloc] initWithFrame:CGRectMake(345, 452, 300, 40)];
    login.backgroundColor = [UIColor clearColor];
    login.borderStyle = UITextBorderStyleRoundedRect;
    login.borderStyle=UITextBorderStyleNone;
    //“委托的意思不就是自己的任务交给其他人去做么”
    //对象.delegate=self的意思就是对象的任务交给self去做  对象！=self
    login.delegate = self;
    login.keyboardType = UIKeyboardTypeDefault;    // use the default type input method (entire keyboard)
    login.placeholder=@"姓名";
    login.returnKeyType = UIReturnKeyDone;
    [self.view addSubview:login];
    
    personnumber = [[UITextField alloc] initWithFrame:CGRectMake(345, 545, 300, 40)];
    personnumber.backgroundColor = [UIColor clearColor];
    personnumber.borderStyle = UITextBorderStyleRoundedRect;
    personnumber.borderStyle=UITextBorderStyleNone;
    personnumber.delegate = self;
    personnumber.keyboardType = UIKeyboardTypeDefault;    // use the default type input method (entire keyboard)
    personnumber.placeholder=@"身份证号码";
    personnumber.returnKeyType = UIReturnKeyDone;
    [self.view addSubview:personnumber];
    
    //密码
    password = [[UITextField alloc] initWithFrame:CGRectMake(345, 636, 300, 40)];
    password.secureTextEntry=YES;
    password.backgroundColor = [UIColor clearColor];
    password.borderStyle = UITextBorderStyleRoundedRect;
    password.delegate = self;
    password.borderStyle=UITextBorderStyleNone;
    password.keyboardType = UIKeyboardTypeDefault;    // use the default type input method (entire keyboard)
    password.placeholder=@"密码";
    password.returnKeyType = UIReturnKeyDone;
    [self.view addSubview:password];//记住状态
    state = [UIButton buttonWithType:UIButtonTypeCustom];
    state.frame =CGRectMake(50, 720, 52, 52);
    //UIControlEventTouchDown事件后会转跳到remember方法中做处理
    [state addTarget:self action:@selector(remember) forControlEvents:UIControlEventTouchDown];
    [state setBackgroundImage:[UIImage imageNamed:@"ipadcheckLogin"] forState:UIControlStateNormal];
    [self.view addSubview:state];
    
    //登陆按钮
    UIButton *check = [UIButton buttonWithType:UIButtonTypeCustom];
    check.frame =CGRectMake(350, 725, 319, 72);
    [check.titleLabel setFont:[UIFont boldSystemFontOfSize:18]];
    //UIControlEventTouchDown事件后会执行goHome
    [check addTarget:self action:@selector(goHome) forControlEvents:UIControlEventTouchDown];
    [check setBackgroundImage:[UIImage imageNamed:@"ipadlogin_btn"] forState:UIControlStateNormal];
    [self.view addSubview:check];
    //他这里condition方法编写的是假如有记住密码则将配置文件里的信息读取到UITextField当中
    [self condition];
}

FFLrcController.h ---> goHome事件

- (void)goHome {
    //交出第一响应的身份，可能是回收键盘操作
    [login resignFirstResponder];
    [personnumber resignFirstResponder];
    [password resignFirstResponder];

    //SVProgressHUD 是一个第三方的控件，是一个弹出提示层，用来提示网络加载或提示对错
    [SVProgressHUD showWithStatus:@"数据加载中..." maskType:SVProgressHUDMaskTypeClear];
    //不重复，只调用一次。timer运行一次就会自动停止运行
    timer = [NSTimer scheduledTimerWithTimeInterval:0.1 target:self selector:@selector(loginTO) userInfo:nil repeats:NO];
 
}

FFLrcController.h ---> loginTO事件

-(void)loginTO{
    //设置URL 这里相当于 http://xxxx.com/CheckLogin/index/type/name/001/IDcardNO/331004xxxxxxxx/password/001/uuid/e1e2ed3sgfw2/macaddress/192.168.1.1/checkword/?p=ui
　　//总之这个根据服务器具体所需要的url来配置
    NSString *urlString=[NSString stringWithFormat:@"%@/CheckLogin/index/type//name/%@/IDcardNO/%@/password/%@/uuid/%@/macaddress/%@/checkword/?p=ui"
　　　　　　,@"http://xxxx.com",login.text,personnumber.text,password.text,[self getUUID],[self getMacAddress]];
    //NSLog(@"urlString %@",urlString);
    NSURL *url=[NSURL URLWithString:urlString];
    //ASIHTTPRequest类库中的ASIFormDataRequest是实现HTTP协议中的处理POST表单的很好的类库。
    ASIFormDataRequest *request = [[ASIFormDataRequest alloc] initWithURL:url];
    [request setDelegate:self];
    //成功后调用dataFetchComplete
    [request setDidFinishSelector:@selector(dataFetchComplete:)];
    //失败后调用dataFail
    [request setDidFailSelector:@selector(dataFail:)];
    [request setTimeOutSeconds:60];
    [[SEAOperationQueue mainQueue] addOperation:request];
    [request release];
}

FFLrcController.h ---> dataFetchComplete事件

- (void)dataFetchComplete:(ASIHTTPRequest *)request
{
    //隐藏进度条框
    [SVProgressHUD dismiss];
    //从服务器中得到的数据是二进制的
    NSData * data = [request responseData];
    if (data) {//从服务器得到返回的数据转UTF-8，这里为什么不是json，竟然带有html的
        NSString *myString = [[NSString alloc] initWithBytes:[data bytes] length:[data length] encoding:NSUTF8StringEncoding];
        //这里过滤掉一些标签如：<script></script>等
        //使用NSString的stringByReplacingOccurrencesOfString:@"要过滤的" withString:@"替换成的"方法
        //以下省略9行过滤代码if ([myString isEqualToString:@"您的身份证号码有误！"]) {
            UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"提示" message:@"身份证号码输入错误" delegate:nil cancelButtonTitle:@"确认" otherButtonTitles:nil, nil];
            [alert show];
            [alert release];
            return;
        }else  if ([myString isEqualToString:@"用户名或密码输入错误！"]) {
            UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"提示" message:@"登陆信息输入错误" delegate:nil cancelButtonTitle:@"确认" otherButtonTitles:nil, nil];
            [alert show];
            [alert release];
            return;
        }else if ([myString hasPrefix:@"/userid"]) {
            myString=[myString stringByReplacingOccurrencesOfString:@"/userid/" withString:@""];
            if (flag) {
                [[NSUserDefaults standardUserDefaults] setObject:@"true" forKey:@"flag"];
                [self writeUser];
            }else{
                [[NSUserDefaults standardUserDefaults] setObject:@"false" forKey:@"flag"];
            }
            //记录登陆时间写入配置文件
            NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
            [formatter setDateFormat:@"YYYY-MM-dd"];
            NSString *timestamp = [formatter stringFromDate:[NSDate date]];
            NSString *countTime=@"上次登陆:";
            countTime=[countTime stringByAppendingString:timestamp];
            [[NSUserDefaults standardUserDefaults] setObject:countTime forKey:@"loginTime"];
            [formatter release];
            //这里登陆成功后，写入一些信息到配置文件。这里省去一些代码
            FFFFSwitchViewController *controller = [[FFFFSwitchViewController alloc]init];
            controller.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
            [self.navigationController pushViewController:controller animated:YES];
            [controller release];
        }        
    }
}