主程序底部TabBar功能跟登录页面布局

1:主程序底部TabBar的功能实现

效果图：

 

主要代码如下：

- (UITabBarController*)setRootVC:(BOOL)bShowCart

{

    //创建一个子控制器 用于显示当前的tab

    TabHomeVC *homeVC = [[TabHomeVC alloc] init];

    //每个tab都是一个nav的内容，这样每个都是自个的nav，进行跳转

    UINavigationController *homeNav = [[UINavigationController alloc] initWithRootViewController:homeVC];

    UIImage *unselectedImage = [UIImage imageNamed:@"tab-home"];

    UIImage *selectedImage = [UIImage imageNamed:@"tab-home-s"];

    

    homeVC.tabBarItem = [[UITabBarItem alloc] initWithTitle:@"首页"

                                                      image:[unselectedImage imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]

                                              selectedImage:[selectedImage imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];

    homeVC.tabBarItem.tag = 0;

    

    TabProductVC *proVC = [[TabProductVC alloc] init];

    UINavigationController *proNav = [[UINavigationController alloc] initWithRootViewController:proVC];

    unselectedImage = [UIImage imageNamed:@"tab-pro"];

    selectedImage = [UIImage imageNamed:@"tab-pro-s"];

    

    proNav.tabBarItem = [[UITabBarItem alloc] initWithTitle:@"所有商品"

                                                      image:[unselectedImage imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]

                                              selectedImage:[selectedImage imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];

    proNav.tabBarItem.tag = 1;

    

    TabNewestVC * newVc = [[TabNewestVC alloc] init];

    UINavigationController * newNav = [[UINavigationController alloc] initWithRootViewController:newVc];

    unselectedImage = [UIImage imageNamed:@"tab-new"];

    selectedImage = [UIImage imageNamed:@"tab-new-s"];

    

    newNav.tabBarItem = [[UITabBarItem alloc] initWithTitle:@"最新揭晓"

                                                       image:[unselectedImage imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]

                                               selectedImage:[selectedImage imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];

    newNav.tabBarItem.tag = 2;

    

    TabShopCartVC * cartVc = [[TabShopCartVC alloc] init];

    UINavigationController * cartNav = [[UINavigationController alloc] initWithRootViewController:cartVc];

    unselectedImage = [UIImage imageNamed:@"tab-cart"];

    selectedImage = [UIImage imageNamed:@"tab-cart-s"];

    

    cartNav.tabBarItem = [[UITabBarItem alloc] initWithTitle:@"购物车"

                                                      image:[unselectedImage imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]

                                              selectedImage:[selectedImage imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];

    cartNav.tabBarItem.tag = 3;

    

    TabMineVC * mineVc = [[TabMineVC alloc] init];

    UINavigationController * mineNav = [[UINavigationController alloc] initWithRootViewController:mineVc];

    unselectedImage = [UIImage imageNamed:@"tab-mine"];

    selectedImage = [UIImage imageNamed:@"tab-mine-s"];

    

    mineNav.tabBarItem = [[UITabBarItem alloc] initWithTitle:@"我的云购"

                                                       image:[unselectedImage imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]

                                               selectedImage:[selectedImage imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];

    mineNav.tabBarItem.tag = 4;

    

    

    //把上面的控制器增加到uitabbarcontroller的数组里

    UITabBarController *tabBarController = [[UITabBarController alloc] init];

    if(bShowCart)

        tabBarController.viewControllers = @[homeNav,proNav,newNav,cartNav,mineNav];

    else

        tabBarController.viewControllers = @[homeNav,proNav,newNav,mineNav];

    tabBarController.delegate = self;

    

    

    //设置一些样式内容

    // customise TabBar UI Effect

    [UITabBar appearance].tintColor = BG_COLOR;

    

    [[UITabBarItem appearance] setTitleTextAttributes:@{NSForegroundColorAttributeName:TABBAR_TEXT_NOR_COLOR} forState:UIControlStateNormal];

    [[UITabBarItem appearance] setTitleTextAttributes:@{NSForegroundColorAttributeName:TABBAR_TEXT_HLT_COLOR} forState:UIControlStateSelected];

    

    // customise NavigationBar UI Effect

    [[UINavigationBar appearance] setBackgroundImage:[UIImage imageWithRenderColor:NAVBAR_COLOR renderSize:CGSizeMake(10., 10.)] forBarMetrics:UIBarMetricsDefault];

    [[UINavigationBar appearance] setTitleTextAttributes:@{NSFontAttributeName:[UIFont boldSystemFontOfSize:16.],NSForegroundColorAttributeName:[UIColor blackColor]}];

    

    

    UITabBar *tabBar = tabBarController.tabBar;

    tabBar.backgroundColor = BG_COLOR;

    

    return tabBarController;

}



- (void)setCartNum

{

    //获得UITabBarController

    UITabBarController* tabVC = (UITabBarController*)self.window.rootViewController;

    //获得其中第四个 也就是购物车那个tabbar

    UINavigationController* navVC = [tabVC.viewControllers objectAtIndex:3];

    __weak typeof (navVC) wNav = navVC;

    //给它增加一个数字标识

    [CartModel quertCart:nil value:nil block:^(NSArray* result){

        if(result.count > 0)

            wNav.tabBarItem.badgeValue  = [NSString stringWithFormat:@"%d",(int)result.count];

        else

            wNav.tabBarItem.badgeValue  = nil;

    }];

}



- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

    [self setWindow:[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]];

    //加载初始化的那个tab

    UIViewController *rootViewController = [self setRootVC:YES];

    [[self window] setRootViewController:rootViewController];

    //显示是否有数字标识

    [self setCartNum];

    // set  backgroundColor

    [[self window] setBackgroundColor:[UIColor whiteColor]];

    // set  makeKeyAndVisible

    [[self window] makeKeyAndVisible];



    return YES;

}

注意：这边为每个tabBarController的子控件都增加一个nav，这样就可以在每个选项卡里都实现nav的跳转，把这个tabBarController作为整个的rootViewController;其中在其它控制器调用AppDelegate的方法setCarNum，可以[(AppDelegate*)[[UIApplication sharedApplication] delegate] setCartNum];

 

2：登录页面两输入框效果的实现

效果图：

 

主要代码：

- (void)viewDidLoad {

    [super viewDidLoad];

    

    self.title = @"登录";

    self.view.backgroundColor = [UIColor hexFloatColor:@"f8f8f8"];

    __weak typeof (self) wSelf = self;

    [self actionCustomLeftBtnWithNrlImage:@"btnback" htlImage:@"btnback" title:@"" action:^{

        [wSelf btnBackAction];

    }];

    

    UIImageView* line1 = [[UIImageView alloc] initWithFrame:CGRectMake(16, 20, mainWidth - 32, 0.5)];

    line1.backgroundColor = [UIColor hexFloatColor:@"dedede"];

    [self.view addSubview:line1];

    

    UIImageView* line3 = [[UIImageView alloc] initWithFrame:CGRectMake(16, 108, mainWidth - 32, 0.5)];

    line3.backgroundColor = [UIColor hexFloatColor:@"dedede"];

    [self.view addSubview:line3];

    

    UIImageView* line4 = [[UIImageView alloc] initWithFrame:CGRectMake(16, 20, 0.5, 88)];

    line4.backgroundColor = [UIColor hexFloatColor:@"dedede"];

    [self.view addSubview:line4];

    

    UIImageView* line5 = [[UIImageView alloc] initWithFrame:CGRectMake(mainWidth - 16, 20, 0.5, 88)];

    line5.backgroundColor = [UIColor hexFloatColor:@"dedede"];

    [self.view addSubview:line5];

    

    UIView* vUser = [[UIView alloc] initWithFrame:CGRectMake(16.5, 20.5, mainWidth - 33, 87)];

    vUser.backgroundColor = [UIColor whiteColor];

    [self.view addSubview:vUser];

    

    UIImageView* line2 = [[UIImageView alloc] initWithFrame:CGRectMake(16, 64, mainWidth - 32, 0.5)];

    line2.backgroundColor = [UIColor hexFloatColor:@"dedede"];

    [self.view addSubview:line2];



    UIImageView* imgUser = [[UIImageView alloc] initWithFrame:CGRectMake(10, 12, 20, 20)];

    imgUser.image = [UIImage imageNamed:@"login_name"];

    [vUser addSubview:imgUser];

    

    txtUser = [[UITextField alloc] initWithFrame:CGRectMake(35, 0, vUser.frame.size.width - 35, 44)];

    txtUser.placeholder = @"请输入您的手机号/邮箱号";

    txtUser.clearButtonMode = UITextFieldViewModeWhileEditing;

    txtUser.font = [UIFont systemFontOfSize:14];

    txtUser.text = [[NSUserDefaults standardUserDefaults] objectForKey:kLoginUsername];

    [vUser addSubview:txtUser];

    

    UIImageView* imgPwd = [[UIImageView alloc] initWithFrame:CGRectMake(10, 56, 20, 20)];

    imgPwd.image = [UIImage imageNamed:@"login_password"];

    [vUser addSubview:imgPwd];

    

    txtPwd = [[UITextField alloc] initWithFrame:CGRectMake(35, 44, vUser.frame.size.width - 35, 44)];

    txtPwd.placeholder = @"请输入您的密码";

    txtPwd.clearButtonMode = UITextFieldViewModeWhileEditing;

    txtPwd.font = [UIFont systemFontOfSize:14];

    txtPwd.secureTextEntry = YES;

    [vUser addSubview:txtPwd];

    

    UIButton* btnLogin = [[UIButton alloc] initWithFrame:CGRectMake(16, 120, mainWidth - 32, 44)];

    btnLogin.layer.cornerRadius = 5;

    btnLogin.backgroundColor = mainColor;

    [btnLogin setTitle:@"登录" forState:UIControlStateNormal];

    [btnLogin addTarget:self action:@selector(btnLoginAction) forControlEvents:UIControlEventTouchUpInside];

    [self.view addSubview:btnLogin];



    

    UIButton* btnReg = [[UIButton alloc] initWithFrame:CGRectMake(mainWidth - 120, 170, 100, 44)];

    [btnReg setTitle:@"新用户注册" forState:UIControlStateNormal];

    btnReg.titleLabel.font = [UIFont systemFontOfSize:13];

    [btnReg setTitleColor:[UIColor grayColor] forState:UIControlStateNormal];

    [btnReg addTarget:self action:@selector(btnRegAction) forControlEvents:UIControlEventTouchUpInside];

    [self.view addSubview:btnReg];

}

注意：它是通过几条背景线跟图片和输入框进行一个组合