1 #import "AppDelegate.h"
2 #import "ViewController.h"
3
4 @interface AppDelegate ()
5
6 @end
7
8 @implementation AppDelegate
9
10 //程序启动完成调用
11 - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
12 //系统创建window
13 self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
14 //在window上创建视图控制器
15 self.window.rootViewController = [[ViewController alloc] init];
16 //系统设置创建window的背景颜色
17 self.window.backgroundColor = [UIColor blackColor];
18 //设置为主窗口并显示出来
19 [self.window makeKeyAndVisible];
20
21 return YES;
22 }
23
24
25
26 #ifndef GlobalDefine_h
27 #define GlobalDefine_h
28
29 #define SCREENWIDTH [[UIScreen mainScreen] bounds].size.width
30 #define SCREENHEIGHT [[UIScreen mainScreen] bounds].size.height
31
32 #endif /* GlobalDefine_h */
33
34
35
36 #import <UIKit/UIKit.h>
37
38 @interface ViewController : UIViewController <UITextFieldDelegate>
39
40 @property (nonatomic, strong) UIImageView *imgViewHomePage;
41 @property (nonatomic, strong) UIImageView *imgViewLine1;
42 @property (nonatomic, strong) UIImageView *imgViewLine2;
43 @property (nonatomic, strong) UIImageView *imgViewLogin;
44 @property (nonatomic, strong) UIImageView *imgViewCancel;
45
46 @property (nonatomic, strong) UITextField *textFieldUserName;
47 @property (nonatomic, strong) UITextField *textFieldPassword;
48
49 @property (nonatomic, strong) UIButton *buttonLogin;
50 @property (nonatomic, strong) UIButton *buttonEmpty;
51
52 @end
53
54
55
56 #import "ViewController.h"
57 #import "SecondViewController.h"
58
59 @interface ViewController ()
60
61 @end
62
63 @implementation ViewController
64
65 - (void)viewDidLoad {
66 [super viewDidLoad];
67 //设置主页面
68 _imgViewHomePage = [[UIImageView alloc] initWithFrame:CGRectMake(89, 92, 143, 48)];
69 _imgViewHomePage.image = [UIImage imageNamed:@"img_首页Logo"];
70 [self.view addSubview:_imgViewHomePage];
71
72 //设置用户名线
73 _imgViewLine1 = [[UIImageView alloc] initWithFrame:CGRectMake(45, 262, 230, 1)];
74 _imgViewLine1.image = [UIImage imageNamed:@"img_首页输入框底线"];
75 [self.view addSubview:_imgViewLine1];
76
77 //设置密码线
78 _imgViewLine2 = [[UIImageView alloc] initWithFrame:CGRectMake(45, 311, 230, 1)];
79 _imgViewLine2.image = [UIImage imageNamed:@"img_首页输入框底线"];
80 [self.view addSubview:_imgViewLine2];
81
82 //设置登录imageView
83 _imgViewLogin = [[UIImageView alloc] initWithFrame:CGRectMake(45, 323, 230, 47)];
84 _imgViewLogin.image = [UIImage imageNamed:@"btn_登录_n"];
85 [self.view addSubview:_imgViewLogin];
86
87 //设置取消imageView
88 _imgViewCancel = [[UIImageView alloc] initWithFrame:CGRectMake(252, 240, 22, 22)];
89 _imgViewCancel.image = [UIImage imageNamed:@"btn_首页用户名取消"];
90 [self.view addSubview:_imgViewCancel];
91
92 //设置用户名TextField
93 _textFieldUserName = [[UITextField alloc] initWithFrame:CGRectMake(45, 232, 230, 30)];
94 //占位符
95 // _textFieldUserName.placeholder = @"用户名";
96 //设置占位符上字体的颜色！！！
97 _textFieldUserName.attributedPlaceholder = [[NSAttributedString alloc] initWithString:@"用户名" attributes:[NSDictionary dictionaryWithObjectsAndKeys:[UIColor grayColor], NSForegroundColorAttributeName,nil]];//设置占位符上字体的颜色
98 _textFieldUserName.textColor = [UIColor whiteColor];
99 _textFieldUserName.delegate = self;//调用协议
100 [self.view addSubview:_textFieldUserName];
101
102 //设置密码TextField
103 _textFieldPassword = [[UITextField alloc] initWithFrame:CGRectMake(45, 281, 230, 30)];
104 NSDictionary *dic = [NSDictionary dictionaryWithObjectsAndKeys:[UIColor grayColor], NSForegroundColorAttributeName,nil];
105 _textFieldPassword.attributedPlaceholder = [[NSAttributedString alloc] initWithString:@"密码" attributes:dic];
106 _textFieldPassword.textColor = [UIColor whiteColor];
107 //使用密文
108 _textFieldPassword.secureTextEntry = YES;
109 _textFieldPassword.delegate = self;
110 [self.view addSubview:_textFieldPassword];
111
112 //设置登录按钮
113 _buttonLogin = [UIButton buttonWithType:UIButtonTypeCustom];
114 _buttonLogin.frame = CGRectMake(45, 323, 230, 47);
115 [self.view addSubview:_buttonLogin];
116 //登录跳转
117 [_buttonLogin addTarget:self action:@selector(next:) forControlEvents:UIControlEventTouchUpInside];
118
119 //设置清空按钮
120 _buttonEmpty = [UIButton buttonWithType:UIButtonTypeCustom];
121 _buttonEmpty.frame = CGRectMake(252, 240, 22, 22);
122 [self.view addSubview:_buttonEmpty];
123 //清空用户名和密码：跳转
124 [_buttonEmpty addTarget:self action:@selector(empty:) forControlEvents:UIControlEventTouchUpInside];
125
126 }
127
128 //清空用户名的方法
129 -(void)empty:(id)sender
130 {
131 [_textFieldUserName setText:@""];
132 [_textFieldPassword setText:@""];
133 [_textFieldUserName isFirstResponder];
134 }
135
136 //登录跳转方法
137 - (void)next:(id)sender
138 {
139 NSString *strUserName = @"Huashan";
140 NSString *strPassWord = @"123456";
141 if ([_textFieldUserName.text isEqualToString:strUserName] && [_textFieldPassword.text isEqualToString:strPassWord])
142 {
143 //跳到下一个界面
144 SecondViewController *tempVC = [[SecondViewController alloc] init];
145 [self presentViewController:tempVC animated:YES completion:nil];
146 }
147 else
148 {
149 //跳出输入错误提示框
150 UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"警告" message:@"用户名或密码错误，请重新输入" preferredStyle:UIAlertControllerStyleAlert];
151 UIAlertAction *okAction = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:nil];
152 [alertController addAction:okAction];
153 [self presentViewController:alertController animated:YES completion:nil];
154 }
155 }
156
157 - (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
158 {
159 [_textFieldUserName resignFirstResponder];
160 [_textFieldPassword resignFirstResponder];
161 }
162
163 //点击文本框，界面随键盘出现，整体往上移动(关键词：UIView animate)
164 - (BOOL)textFieldShouldBeginEditing:(UITextField *)textField
165 {
166 if (self.view.frame.origin.y == 0)
167 {
168 [UIView animateWithDuration:0.3 animations:^{
169 self.view.frame = CGRectMake(self.view.frame.origin.x, self.view.frame.origin.y - 100, self.view.frame.size.width, self.view.frame.size.height);
170 }];
171 }
172 return YES;
173 }
174 //随着键盘收缩，界面随着往下移动
175 - (BOOL)textFieldShouldEndEditing:(UITextField *)textField
176 {
177
178 if (self.view.frame.origin.y == -100)
179 {
180 [UIView animateWithDuration:0.3 animations:^{
181 self.view.frame = CGRectMake(self.view.frame.origin.x, self.view.frame.origin.y + 100, self.view.frame.size.width, self.view.frame.size.height);
182 }];
183 }
184 return YES;
185 }
186
187
188 - (BOOL)textFieldShouldReturn:(UITextField *)textField//按下return键盘收缩
189 {
190 [textField resignFirstResponder];
191 return YES;
192 }
193
194 - (void)didReceiveMemoryWarning {
195 [super didReceiveMemoryWarning];
196 // Dispose of any resources that can be recreated.
197 }
198
199 @end
200
201
202
203 #import <UIKit/UIKit.h>
204
205 @interface SecondViewController : UIViewController
206
207 @property (nonatomic, strong) UIScrollView *scrollView;
208 @property (nonatomic, strong) UIImageView *imgView;
209 @property (nonatomic, strong) UILabel *sortLabel;
210 @property (nonatomic, strong) UIButton *backButton;
211
212 @end
213
214
215
216 #import "SecondViewController.h"
217 #import "GlobalDefine.h"
218
219 @interface SecondViewController ()
220
221 @end
222
223 @implementation SecondViewController
224
225 - (void)viewDidLoad
226 {
227 [super viewDidLoad];
228 //设置滚动视图
229 _scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, SCREENWIDTH, SCREENHEIGHT)];
230 //滚动视图内容的宽高
231 _scrollView.contentSize = CGSizeMake(SCREENWIDTH, SCREENHEIGHT * 4);
232 //启用分页
233 _scrollView.pagingEnabled = YES;
234 //禁止弹动
235 _scrollView.bounces = NO;
236 [self.view addSubview:_scrollView];
237
238 //添加4张图片,顺序上下
239 for (int i = 1; i < 5; ++i)
240 {
241 _sortLabel = [[UILabel alloc] initWithFrame:CGRectMake(SCREENWIDTH / 2 - 100, SCREENHEIGHT - 50, 200, 30)];
242 _sortLabel.textAlignment = NSTextAlignmentCenter;
243 _sortLabel.textColor = [UIColor whiteColor];
244 _sortLabel.font = [UIFont systemFontOfSize:15];
245
246 _imgView = [[UIImageView alloc] initWithFrame:CGRectMake(0, SCREENHEIGHT * (i - 1), SCREENWIDTH, SCREENHEIGHT)];
247 _imgView.image = [UIImage imageNamed:[NSString stringWithFormat:@"%d.jpg", i]];
248 _sortLabel.text = [NSString stringWithFormat:@"这是第%d张图片", i];
249 [_imgView addSubview:_sortLabel];
250 [_scrollView addSubview:_imgView];
251 }
252
253 //退出（返回）
254 _backButton = [UIButton buttonWithType:UIButtonTypeCustom];
255 _backButton.frame = CGRectMake(30, 50, 60, 60);
256 [_backButton setTitle:@"退出" forState:UIControlStateNormal];
257 [_backButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
258 // _backButton.tintColor = [UIColor whiteColor];
259 _backButton.titleLabel.font = [UIFont systemFontOfSize:14];
260 [self.view addSubview:_backButton];
261
262 //退出跳转
263 [_backButton addTarget:self action:@selector(back:) forControlEvents:UIControlEventTouchUpInside];
264
265 }
266
267 - (void)back:(id)sender
268 {
269 [self dismissViewControllerAnimated:YES completion:nil];
270 }
271
272 - (void)didReceiveMemoryWarning {
273 [super didReceiveMemoryWarning];
274 // Dispose of any resources that can be recreated.
275 }
276
277 /*
278 #pragma mark - Navigation
279
280 // In a storyboard-based application, you will often want to do a little preparation before navigation
281 - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
282 // Get the new view controller using [segue destinationViewController].
283 // Pass the selected object to the new view controller.
284 }
285 */
286
287 @end
时间： 2024-09-29 11:23:55