1 //
2 // LWTViewController.m
3 // 纯代码-QQ登陆
4 //
5 // Created by apple on 14-5-21.
6 // Copyright (c) 2014年 lwt. All rights reserved.
7 //
8
9 #import "LWTViewController.h"
10
11 #define KLabelX 40
12 #define KTextFieldX 100
13
14 #define KLabelWidth 40
15 #define KTextFieldWidth 150
16 #define kButtonWidth 60
17
18 #define KHeight 25
19
20
21 @interface LWTViewController ()
22
23 // qq号码和密码属性
24 @property (nonatomic, strong) UITextField *QQNumber;
25 @property (nonatomic, strong) UITextField *QQPassword;
26
27
28 @end
29
30 @implementation LWTViewController
31
32 - (void)viewDidLoad
33 {
34 [super viewDidLoad];
35 // Do any additional setup after loading the view, typically from a nib.
36
37 // 用户名
38 [self createLable:40.0 andText:@"QQ"];
39 // 输入框
40 self.QQNumber = [self createTextField:40.0 andText:@"请输入QQ"];
41 // 数字键盘
42 self.QQNumber.keyboardType = UIKeyboardTypeNumberPad;
43
44 // 密码
45 [self createLable:80.0 andText:@"密码"];
46 // 输入框
47 self.QQPassword = [self createTextField:80.0 andText:@"请输入密码"];
48 // 密码隐文
49 self.QQPassword.secureTextEntry = YES;
50
51 // 创建登陆按钮
52 CGFloat btnX = (self.view.frame.size.width - kButtonWidth) / 2;
53 UIButton *btn = [[UIButton alloc] initWithFrame:CGRectMake(btnX, 120, kButtonWidth, KHeight)];
54 // 设置文本
55 [btn setTitle:@"登陆" forState:UIControlStateNormal];
56 [btn setTitleColor:[UIColor blueColor] forState:UIControlStateNormal];
57
58 // 设置背景颜色
59 [btn setBackgroundColor:[UIColor whiteColor]];
60
61 // 设置点击按钮事件
62 [btn addTarget:self action:@selector(btnClick) forControlEvents:UIControlEventTouchUpInside];
63
64 [self.view addSubview:btn];
65
66 }
67
68 /** 创建UILabel */
69 - (void)createLable:(CGFloat)y andText:(NSString *)text
70 {
71 // 创建UILabel
72 UILabel *label = [[UILabel alloc] init];
73 // 位置
74 label.frame = CGRectMake( KLabelX, y, KLabelWidth, KHeight);
75 // 文本
76 label.text = text;
77 // 设置居中
78 label.textAlignment = NSTextAlignmentCenter;
79
80 [self.view addSubview:label];
81 }
82
83 /** 创建UITextField */
84 - (UITextField *)createTextField : (CGFloat)y andText:(NSString *)placeholder
85 {
86 // 创建UITextField
87 UITextField *textField = [[UITextField alloc] init];
88 // 位置
89 textField.frame = CGRectMake(KTextFieldX, y, KTextFieldWidth, KHeight);
90 // 边框
91 textField.borderStyle = UITextBorderStyleRoundedRect;
92 // 默认文本
93 textField.placeholder = placeholder;
94
95 [self.view addSubview:textField];
96
97 return textField;
98 }
99
100 - (void)btnClick
101 {
102 NSLog(@"QQ ：%@,密码 ：%@", self.QQNumber.text, self.QQPassword.text);
103 [self.view endEditing:YES];
104 }
105
106 - (void)didReceiveMemoryWarning
107 {
108 [super didReceiveMemoryWarning];
109 // Dispose of any resources that can be recreated.
110 }
111
112 @end
纯代码-QQ登陆练习
时间： 2024-10-11 18:20:49