Retrofit+Hilt后端请求小项目1--项目介绍

简介

本项目根据 youtube 对应教程实现而来

将会对对应代码以及依赖（如 Hilt、retrofit、coil）进行详细的分析与解读，同时缕清项目结构安排

如文章有叙述不清晰的，请直接查看原教程：https://www.youtube.com/watch?v=bLIWWOMVxts

使用技术

Retrofit 基于 OkHttp 的网络请求库
Coil 图像处理库
Hilt 依赖注入库

Moshi 基于 retrofit 的对象类型转换库

项目结构

项目完整结构图：

com└─example│  CharacterApplication.kt│└─character│  MainActivity.kt│├─data│  ├─api│  │  │  ApiConstants.kt│  │  │  CharacterApi.kt│  │  ││  │  └─model│  │          Character.kt│  │          Wand.kt│  ││  └─repository│          CharacterRepo.kt│├─di│      CharacterApiModule.kt│└─ui├─home│      Home.kt│      HomeViewModel.kt│└─themeColor.ktShape.ktTheme.ktType.kt

完整代码调整

作者提供的 github 项目：https://github.com/Hoodlab/retrofit-mvvm-

请注意！由于接口地址变更，而作者目前没有对仓库进行更新，我们在导入项目后需要执行以下修改操作：

找到 ApiConstants.kt，修改 BASE_URL 的值为最新接口地址

object ApiConstants {const val BASE_URL = "https://hp-api.onrender.com/api/"const val END_POINTS = "characters"
}

找到 module/Wand.kt ，删除 length 一项

找到 module/Character.kt ，删除 dateOfBirth、yearOfBirth 两项

此时两个文件内容如下（可以直接复制粘贴）：

// Wand.kt
@JsonClass(generateAdapter = true)
data class Wand(@Json(name = "core")val core: String,@Json(name = "wood")val wood: String
)// Character.kt
@JsonClass(generateAdapter = true)
data class Character(@Json(name = "actor")val actor: String,@Json(name = "alive")val alive: Boolean,@Json(name = "alternate_actors")val alternateActors: List<String>,@Json(name = "alternate_names")val alternateNames: List<String>,@Json(name = "ancestry")val ancestry: String,@Json(name = "eyeColour")val eyeColour: String,@Json(name = "gender")val gender: String,@Json(name = "hairColour")val hairColour: String,@Json(name = "hogwartsStaff")val hogwartsStaff: Boolean,@Json(name = "hogwartsStudent")val hogwartsStudent: Boolean,@Json(name = "house")val house: String,@Json(name = "id")val id: String,@Json(name = "image")val image: String,@Json(name = "name")val name: String,@Json(name = "patronus")val patronus: String,@Json(name = "species")val species: String,@Json(name = "wand")val wand: Wand,@Json(name = "wizard")val wizard: Boolean,
)

此时就可以直接构建了（不需要搭梯子即可访问后端接口）