# flutter_application_1

**Repository Path**: demrin/flutter_application_1

## Basic Information

- **Project Name**: flutter_application_1
- **Description**: 首个flutter app，flutter入门案例
- **Primary Language**: Dart
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 1
- **Forks**: 0
- **Created**: 2021-08-05
- **Last Updated**: 2022-10-13

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# flutter_application_1
新手入门，尝试一步一步搭建一个完整的app，以及碰到的一些问题会做一个统计归纳，或者在代码中给到较为详细的注释，也能避免Baidu不到的窘迫

## Getting Started

This project is a starting point for a Flutter application.

A few resources to get you started if this is your first Flutter project:

- [Lab: Write your first Flutter app](https://flutter.dev/docs/get-started/codelab)
- [Cookbook: Useful Flutter samples](https://flutter.dev/docs/cookbook)

For help getting started with Flutter, view our
[online documentation](https://flutter.dev/docs), which offers tutorials,
samples, guidance on mobile development, and a full API reference.

## 新手备忘录
  - 数据类型
  ```
  Number 数字类型，包括 int整型和double浮点型；
  int 整型，取值范围为-2^53到2^53，int类型不能包含小数点；
  double 浮点型，64位（双精度）浮点数；
  num 数字类型，int和double都是num类型的子类，num类型包括的运算操作有：+、-、*、/、以及移位操作>>，num类型包括的常用方法有：abs、ceil和floor；

  String 字符串
  Boolean 布尔值
  List 数组
  Map 集合 对应 js的Object
  symbol 符号
  ```
  - http 请求时，必须将参数转为字符串类型
  ```
  var url = new Uri.https('192.168.50.19', '/oceanAPI/v1/filters/tables', {
    'key': '',
    'type': '',
    'page': 1,
    'len': 10,
    'timeRange': '2018-07-11',
    'privkey': 1,
    'public': ''
  });
  ```
  ```
  var url = new Uri.https('192.168.50.19', '/oceanAPI/v1/filters/tables/', {
    'key': '',
    'type': '',
    'page': '1',
    'len': '10', // 
    'timeRange': '2018-07-11',
    'privkey': '1',
    'public': ''
  });
  ```