1 @interface ViewController ()

 2 @property (weak, nonatomic) IBOutlet UITextField *qqField;

 3 @property (weak, nonatomic) IBOutlet UITextField *pwdField;

 4

 5 - (IBAction)login;

 6

 7 @end

 8

 9 @implementation ViewController

10

11 - (void)viewDidLoad {

12     [super viewDidLoad];

13     // Do any additional setup after loading the view, typically from a nib.

14 }

15

16 - (void)didReceiveMemoryWarning {

17     [super didReceiveMemoryWarning];

18     // Dispose of any resources that can be recreated.

19 }

20

21 - (IBAction)login {

22     NSLog(@"%@ - %@", self.qqField.text, self.pwdField.text);

23 }

24 @end

 1 @interface ViewController ()

 2

 3 - (void) addLabel;

 4 - (void) addTextField;

 5 - (void) addLoginButton;

 6 - (void) login;

 7

 8 @end

 9

10 @implementation ViewController

11

12 - (void)viewDidLoad {

13     [super viewDidLoad];

14     // Do any additional setup after loading the view, typically from a nib.

15

16     [self addLabel];

17     [self addTextField];

18     [self addLoginButton];

19 }

20

21 - (void)didReceiveMemoryWarning {

22     [super didReceiveMemoryWarning];

23     // Dispose of any resources that can be recreated.

24 }

25

26 - (void) addLabel {

27     UILabel *titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 45, self.view.frame.size.width, 21)];

28     [titleLabel setTextAlignment:NSTextAlignmentCenter];

29     titleLabel.text = @"QQ登陆界面2";

30     [self.view addSubview:titleLabel];

31

32     UILabel *qqLabel = [[UILabel alloc] initWithFrame:CGRectMake(60, 91, 26, 21)];

33     qqLabel.text = @"QQ";

34     [self.view addSubview:qqLabel];

35

36     UILabel *pwdLabel = [[UILabel alloc] initWithFrame:CGRectMake(60, 131, 34, 21)];

37     pwdLabel.text = @"密码";

38     [self.view addSubview:pwdLabel];

39 }

40

41 - (void) addTextField {

42     UITextField *qqField = [[UITextField alloc] initWithFrame:CGRectMake(109, 87, 151, 30)];

43     qqField.placeholder = @"请输入QQ账号";

44     [qqField setClearButtonMode:UITextFieldViewModeWhileEditing];

45     [qqField setKeyboardType:UIKeyboardTypeNumberPad];

46     [qqField setBorderStyle:UITextBorderStyleRoundedRect];

47     [qqField setTag:1];

48     [self.view addSubview:qqField];

49

50     UITextField *pwdField = [[UITextField alloc] initWithFrame:CGRectMake(109, 127, 151, 30)];

51     pwdField.placeholder = @"请输入QQ密码";

52     [pwdField setSecureTextEntry:YES];

53     [pwdField setKeyboardType:UIKeyboardTypeNumbersAndPunctuation];

54     [pwdField setClearButtonMode:UITextFieldViewModeWhileEditing];

55     [pwdField setBorderStyle:UITextBorderStyleRoundedRect];

56     [pwdField setTag:2];

57     [self.view addSubview:pwdField];

58 }

59

60 - (void) addLoginButton {

61     // 注意如果使用UIButtonTypeCustom，默认背景色和titleColor都是是白色，显示不出来

62     UIButton *loginButton = [UIButton buttonWithType:UIButtonTypeSystem];

63

64     CGRect loginRect = CGRectMake(145, 177, 30, 30);

65     loginButton.frame = loginRect;

66     [loginButton setTitle:@"登陆" forState:UIControlStateNormal];

67     [loginButton addTarget:self action:@selector(login) forControlEvents:UIControlEventTouchUpInside];

68

69     [self.view addSubview:loginButton];

70 }

71

72 #pragma mark - action

73 - (void) login {

74     UITextField *qqField = [self.view viewWithTag:1];

75     UITextField *pwdField = [self.view viewWithTag:2];

76

77     NSLog(@"登陆---->%@ - %@", qqField.text, pwdField.text);

78 }

79 @end