Objective-c纯代码实现签到界面
时间: 2023-12-24 17:04:58 浏览: 26
Objective-C 纯代码实现签到界面的步骤如下:
1. 创建一个 UIViewController。
```
#import <UIKit/UIKit.h>
@interface SignInViewController : UIViewController
@end
```
2. 在 UIViewController 中添加需要的 UI 元素。
```
@interface SignInViewController ()
@property (nonatomic, strong) UILabel *titleLabel;
@property (nonatomic, strong) UILabel *descriptionLabel;
@property (nonatomic, strong) UILabel *dateLabel;
@property (nonatomic, strong) UIButton *signInButton;
@end
@implementation SignInViewController
- (void)viewDidLoad {
[super viewDidLoad];
self.view.backgroundColor = [UIColor whiteColor];
self.titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 100, self.view.frame.size.width, 30)];
self.titleLabel.textAlignment = NSTextAlignmentCenter;
self.titleLabel.text = @"签到";
[self.view addSubview:self.titleLabel];
self.descriptionLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 150, self.view.frame.size.width, 30)];
self.descriptionLabel.textAlignment = NSTextAlignmentCenter;
self.descriptionLabel.text = @"签到可以获得积分哦";
[self.view addSubview:self.descriptionLabel];
self.dateLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 200, self.view.frame.size.width, 30)];
self.dateLabel.textAlignment = NSTextAlignmentCenter;
self.dateLabel.text = [self getCurrentDate];
[self.view addSubview:self.dateLabel];
self.signInButton = [[UIButton alloc] initWithFrame:CGRectMake((self.view.frame.size.width - 100) / 2, 250, 100, 50)];
[self.signInButton setTitle:@"签到" forState:UIControlStateNormal];
[self.signInButton setTitleColor:[UIColor blueColor] forState:UIControlStateNormal];
[self.signInButton addTarget:self action:@selector(signInButtonAction) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:self.signInButton];
}
- (NSString *)getCurrentDate {
NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
[formatter setDateFormat:@"yyyy-MM-dd"];
NSString *currentDate = [formatter stringFromDate:[NSDate date]];
return currentDate;
}
- (void)signInButtonAction {
// 处理签到逻辑
}
@end
```
3. 在需要的地方创建 SignInViewController 并展示。
```
SignInViewController *signInViewController = [[SignInViewController alloc] init];
[self.navigationController pushViewController:signInViewController animated:YES];
```
以上就是 Objective-C 纯代码实现签到界面的步骤。