Question

Xcode中怎么做登陆界面

最低Xcode 5.0开发环境，storyboard，界面设计，做登陆界面，求大神指教。。。

Answer 1

现在xcode新建的项目都是自带故事板的，操作不是很方便，来把它改成说写代码

打开AppDelegate.h文件，添加以下代码
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { self.window=[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; self.window.rootViewController=[[ViewController alloc] init]; [self.window makeKeyAndVisible]; return YES; }

到此就完成了手写代码的第一步。

添加输入框和按钮

在ViewController.h中添加以下代码

#import "ViewController.h"
@interface ViewController ()
@property (nonatomic,strong) UITextField *account;
@property (nonatomic,strong) UITextField *password;
@property (nonatomic,strong) UIButton *loginButton;
@end
@implementation ViewController
- (void)viewDidLoad {
   [super viewDidLoad];
   [self.view setBackgroundColor:[UIColor colorWithRed:51/255.0 green:204/255.0 blue:255/255.0 alpha:1]];
   _account=[[UITextField alloc] initWithFrame:CGRectMake(20, 200, self.view.frame.size.width-40, 50)];
   _account.backgroundColor=[UIColor whiteColor];
   _account.placeholder=[NSString stringWithFormat:@"Email"];
   [self.view addSubview:_account];
   _password=[[UITextField alloc] initWithFrame:CGRectMake(20, 260, self.view.frame.size.width-40, 50)];
   _password.backgroundColor=[UIColor whiteColor];
   _password.placeholder=[NSString stringWithFormat:@"Password"];
   [self.view addSubview:_password];
   _loginButton=[UIButton buttonWithType:UIButtonTypeRoundedRect];
   [_loginButton setFrame:CGRectMake(20, 320, self.view.frame.size.width-40, 50)];
   [_loginButton setTitle:@"Login" forState:UIControlStateNormal];
   [_loginButton setBackgroundColor:[UIColor colorWithRed:51/255.0 green:102/255.0 blue:255/255.0 alpha:1]];
   [_loginButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
   [self.view addSubview:_loginButton];
}
@end

运行一下看看效果

Answer 2

把控件一一排列整齐，点击按钮触发一个事件，用于连接服务器或数据库判断用户名和密码就好了。