用哈蒙舞动精彩新时代

2023-06-25 07:17:13

用哈蒙应用开发，踏上移动开发的新征程

踏入哈蒙应用开发的舞台，你将置身于一个活力四射、激情迸发的开发者社区。在这里，创意的浪潮席卷而来，开发者们用代码谱写出精彩纷呈的新时代乐章。而作为这舞台上耀眼的明珠，ArkUI以其声明式编程的魅力，为开发过程注入了前所未有的流畅与优雅。

声明式编程：让UI开发如诗般行云流水

与繁琐的命令式编程告别，声明式编程让你用语言UI页面，无需再与复杂的代码纠缠。想象一下，当你想创建一个卡片组件时，只需寥寥数行代码，就能轻松搞定：

Card {
  title: "标题"
  subtitle: "副标题"
  content: "卡片内容"
  actions: [
    {
      title: "确定",
      action: "确定了"
    },
    {
      title: "取消",
      action: "取消了"
    }
  ]
}

多么简洁，多么优雅！这就是声明式编程的魅力，它让你专注于业务逻辑，不再为UI布局而烦恼。

命令式编程：步步为营，匠心筑梦

再来看看命令式编程，它就像一位严谨的教官，要求你一步一步地进行布局，每一个细节都必须亲力亲为。想象一下，当你想要实现同一个卡片时，你可能需要写下数十行代码：

UIView *card = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 300, 200)];
card.backgroundColor = [UIColor whiteColor];

UILabel *titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 10, 280, 20)];
titleLabel.text = @"标题";
titleLabel.font = [UIFont systemFontOfSize:18];

UILabel *subtitleLabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 30, 280, 20)];
subtitleLabel.text = @"副标题";
subtitleLabel.font = [UIFont systemFontOfSize:16];

UITextView *contentView = [[UITextView alloc] initWithFrame:CGRectMake(10, 50, 280, 100)];
contentView.text = @"卡片内容";
contentView.font = [UIFont systemFontOfSize:14];

UIButton *confirmButton = [[UIButton alloc] initWithFrame:CGRectMake(10, 160, 130, 30)];
confirmButton.backgroundColor = [UIColor blueColor];
[confirmButton setTitle:@"确定" forState:UIControlStateNormal];
[confirmButton addTarget:self action:@selector(onConfirmButtonPressed) forControlEvents:UIControlEventTouchUpInside];

UIButton *cancelButton = [[UIButton alloc] initWithFrame:CGRectMake(160, 160, 130, 30)];
cancelButton.backgroundColor = [UIColor redColor];
[cancelButton setTitle:@"取消" forState:UIControlStateNormal];
[cancelButton addTarget:self action:@selector(onCancelButtonPressed) forControlEvents:UIControlEventTouchUpInside];

[card addSubview:titleLabel];
[card addSubview:subtitleLabel];
[card addSubview:contentView];
[card addSubview:confirmButton];
[card addSubview:cancelButton];

[self.view addSubview:card];