IOS:UI系列之UINAVIGATIONCONTROLLER

IOS:UI系列之UINAVIGATIONCONTROLLER
　又到了總結的時間了,突然間感覺時間過得好快啊, 總覺的時間不夠用,但是這也沒辦法啊, 只有自己擠時間了,雖然是零基礎,但是這並不能代表什麼啦,只要努力,收穫總還是有的, 同時我也相信廣大的博友肯定也有同樣的感觸吧! 　　接下來就讓我來為大家解讀我們今天所學習的內容吧,嘿嘿. 首先在上課剛開始時間,我們做了短短的練習, 對以往的知識有了進一步的瞭解, 也提高了熟練度, 但是時間總是很快的, 馬上我們就迎來了我們今天學習的新內容UINavigationControl! 　　首先讓我來介紹下UINavigationControl的建立方法吧: 　　1.建立導航控制器, 並指定導航控制器的RootViewController 　　2.設定導航控制器為rootViewController 具體建立過程我就用代碼來告訴大家吧,如下:  FirstViewController *firstVC = [[FirstViewController alloc] init];    NSLog(@"第一個頁面初始化完成");    UINavigationController *navC = [[UINavigationController alloc] initWithRootViewController:firstVC];    [firstVC release];    NSLog(@"設定第一個頁面為導航控制器的rootViewController");    //步驟2.設定導航控制器為window的rootViewController    self.window.rootViewController = navC;     NSLog(@"設定導航控制器為window的RootViewController");    [navC release]; UINavigationControl,當行控制器, 繼承於UIViewController, 視圖控制器的視圖控制器, 用於管理伊利咧視圖控制器,被管理的視圖控制器以棧(先進後出, 後進先出)的形式儲存 每一個導航控制器都內建一個navigationBar(導航條), UINavigationBar繼承於UIView, navigationBar是用於管理導航條的展現(iOS7之前是不透明的,之後就變為透明的啦) 同時我們也可以對導航條以及上面的東西進行設定, 具體方法如下:  //設定導航條是否半透明, 設定背景色,半透明失效    naviVC.navigationBar.translucent = YES;    //設定導航條上item的顏色    naviVC.navigationBar.tintColor = [UIColor purpleColor];        //設定導航條樣式    naviVC.navigationBar.barStyle = UIBarStyleBlack; 在之後我們便進入了本節課最為重要的了 那就是傳值問題, 在今天我們學習的方法中由屬性傳值和單例傳值. 單例傳值的建立方法為: 1.類方法 2.傳回值類型是當前類 3.方法名:default + 類名 下面為大家帶上今天的例子: 下面圖示為1 2 3步  - (void)viewDidLoad{    [super viewDidLoad];    self.view.backgroundColor = [UIColor purpleColor];    // Do any additional setup after loading the view.    self.navigationItem.title = @"首頁";    UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(20, 100, 60, 30)];    label.text = @"使用者名稱";    label.textAlignment = NSTextAlignmentRight;    [self.view addSubview:label];    [label release];        UILabel *label1 = [[UILabel alloc] initWithFrame:CGRectMake(20, 150, 60, 30)];    label1.text = @"性別";    label1.textAlignment = NSTextAlignmentRight;    [self.view addSubview:label1];    [label1 release];        field = [[UITextField alloc] initWithFrame:CGRectMake(100, 100, 200, 30)];    field.borderStyle = UITextBorderStyleRoundedRect;    field.placeholder = @"請輸入使用者名稱";    field.autocorrectionType = UITextAutocorrectionTypeNo;    field.spellCheckingType = UITextSpellCheckingTypeNo;    [self.view addSubview:field];    [field release];        field1 = [[UITextField alloc] initWithFrame:CGRectMake(100, 150, 200, 30)];    field1.borderStyle = UITextBorderStyleRoundedRect;    field1.placeholder = @"請輸入性別";    [self.view addSubview:field1];    [field1 release];        UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];    button.frame = CGRectMake(70, 200, 70, 30);    [button addTarget:self action:@selector(changPage:) forControlEvents:UIControlEventTouchUpInside];    [button setTitle:@"登陸" forState:UIControlStateNormal];    [self.view addSubview:button];        UIButton *button1 = [UIButton buttonWithType:UIButtonTypeSystem];    button1.frame = CGRectMake(180, 200, 70, 30);    [button1 addTarget:self action:@selector(changPage:) forControlEvents:UIControlEventTouchUpInside];    [button1 setTitle:@"取消" forState:UIControlStateNormal];    [self.view addSubview:button1];        UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(returnThekeyBorld:)];    [self.view addGestureRecognizer:tap];    [tap release];        //建立單例//    Single *single = [Single defaultSingle];//    NSLog(@"%@", single);//    Single *single1 = [Single defaultSingle];//    NSLog(@"%@", single1);//    Single *single2 = [Single defaultSingle];//    NSLog(@"%@", single2);} - (void)returnThekeyBorld:(UITapGestureRecognizer *)tap{    for (UIView *view in self.view.subviews) {        if ([view class] == [UITextField class]) {            [view resignFirstResponder];        }    }} - (void)didReceiveMemoryWarning{    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.} - (void)changPage:(UIButton *)button{    Single *single = [Single defaultSingle];    single.nameString = field.text;    NSLog(@"%@", single.nameString);    HomeDetailViewController *detail = [[HomeDetailViewController alloc] init];    detail.nameString = [NSString stringWithFormat:@"歡迎%@ 性別%@登陸成功", field.text, field1.text];    [self.navigationController pushViewController:detail animated:YES];    [detail release]; } - (void)viewDidLoad{    self.view.backgroundColor = [UIColor redColor];    [super viewDidLoad];    // Do any additional setup after loading the view.    self.navigationItem.title = @"詳情頁";        UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(20, 0, 200, 100)];    label.numberOfLines = 0;    label.center = self.view.center;//    label.text = _nameString;    Single *single = [Single defaultSingle];    label.text = single.nameString;    label.textAlignment = NSTextAlignmentCenter;    [self.view addSubview:label];    [label release];} #import <Foundation/Foundation.h> @interface Single : NSObject @property (nonatomic, retain) NSString *nameString, *genderString;  //單例的建立方法//1.類方法//2.傳回值類型是當前類//3.方法名字:default + 類名+ (Single *)defaultSingle; #import "Single.h" @implementation Single + (Single *)defaultSingle{    static Single *single = nil;    if (single == nil) {        single = [[Single alloc] init];    }    return single;} - (void)dealloc{    self.nameString = nil;    self.genderString = nil;    [super dealloc];}