flutter最简单的天气预报

flutter最简单的天气预报

项目结构

介绍

预览图

1. 首页

2. 左右滑动的导航条

3. 下拉刷新

5. 未来七天的天气

6. 未来七天天气的刷新

代码

代码链接：flutter最简单的天气预报

逻辑

1. 封装天气

  static const forecast = {
    
    
    0: Icons.wb_sunny_outlined,
    1: Icons.cloud_queue,
    2: Icons.ac_unit,
    3: Icons.flash_on,
    4: Icons.waves,
  };

2. 封装日期

class listview extends State {
    
    
  SecondScreen sec = new SecondScreen();
  static const date = {
    
    
    0: "今天",
    1: "星期二",
    2: "星期三",
    3: "星期四",
    4: "星期五",
    5: "星期六",
    6: "星期日",
  };

3. 封装随机温度

randomBit(int len) {
    
    
    String scopeF = '1'; //首位
    String scopeC = '0123456789'; //中间
    String scopeD = '01234';
    String result = '';
    if (len == 2) {
    
    
      for (int i = 0; i < len; i++) {
    
    
        if (i == 0) {
    
    
          result = scopeF[Random().nextInt(scopeF.length)];
        } else {
    
    
          result = result + scopeC[Random().nextInt(scopeC.length)];
        }
      }
      return result;
    } else {
    
    
      for (int i = 0; i < len; i++)
        result = result + scopeD[Random().nextInt(scopeD.length)];
      return result;
    }
  }