无法从 Retrofit API 接收数据。

huangapple go评论76阅读模式
英文:

cant recieve data from the api retrofit

问题

作为一名志向成为Android开发者的人,我成功地创建了一个简单的MVVM字典应用,充分利用了诸如Retrofit用于API调用、Dagger Hilt用于依赖注入以及Jetpack Compose用于打造直观的用户界面等流行工具的强大功能。此外,我还集成了一个外部库来简化网络响应处理,我很高兴地说我的代码没有错误。然而,在测试阶段,我遇到了一个持续存在的问题,即尽管在应用的清单文件中授予了必要的互联网权限,但网络响应始终显示“无互联网连接”。

由于我在Android开发方面相对新手,我正在寻求有经验的开发者的专业知识,帮助我确定这个问题的根本原因并找到有效的解决方案。来自社区的任何帮助、反馈或建议都将不胜感激,因为我的目标是创建一个功能完善且可靠的字典应用。

对于那些有兴趣审查代码并提供指导的人,可以通过以下GitHub链接访问该项目:DictionaryAPP GitHub仓库

提前感谢所有有经验的Android开发者,他们可以伸出援手,解决这个问题,使这个项目取得成功。你们的支持对我来说将是无价的,因为我在Android开发的世界中不断成长和学习。

英文:

As an aspiring Android developer, I successfully created a simple MVVM dictionary app, leveraging the power of popular tools such as Retrofit for API calls, Dagger Hilt for dependency injection, and Jetpack Compose for crafting an intuitive UI. Additionally, I integrated an external library to facilitate network response handling, and I'm pleased to say that my code is free of errors. However, during the testing phase, I encountered a persistent issue where the network response consistently indicated "no internet connection," despite granting the necessary internet permissions in the app's manifest file.

Since I am relatively new to Android development, I am seeking the expertise of experienced developers to assist me in identifying the root cause of this problem and finding an effective solution. Any assistance, feedback, or suggestions from the community would be immensely appreciated, as my goal is to create a fully functional and reliable dictionary app.

For those interested in reviewing the code and providing guidance, the project can be accessed via the following GitHub link: [DictionaryAPP GitHub Repository]

(https://github.com/CUBE2003/DictionaryAPP).

Thank you in advance to all experienced Android developers who can lend a helping hand in resolving this issue and making this project a success. Your support will be invaluable to me as I continue to grow and learn in the world of Android development.

答案1

得分: 1

我使用Postman检查了你的API服务器的基本URL。你提供的URL是https://api.dectionaryapi.dev/,这是不正确的,正确的URL应该是https://api.dictionaryapi.dev/。请在Hilt模块中更改代码如下:

@Provides
@Singleton
fun provideRetrofitInstance(): Retrofit {
    return Retrofit.Builder()
        .baseUrl("https://api.dictionaryapi.dev/")
        .addCallAdapterFactory(NetworkResponseAdapterFactory())
        .addConverterFactory(GsonConverterFactory.create())
        .client(logingInterceptror())
        .build()
}

在处理与服务器的网络请求时,我建议始终使用Postman在项目中使用之前测试API,因为它可能会出现无法处理的内部错误。这样,你可以确保你的端点是正确的,并且服务器的响应符合预期。另外,重要的是要处理所有可能的HTTP响应,而不仅仅是成功的情况。Retrofit提供了处理这些情况的机制,比如处理网络错误或不成功的HTTP响应的IOException。错误消息"检查你的互联网连接"通常是由于网络错误(如IOException)引起的,因此在你的代码中处理这一点非常重要。

请确保重新构建你的项目以重新生成Hilt的依赖项。

希望这能帮助你调试和解决问题!记住,在处理网络操作时,适当的错误处理至关重要。

英文:

i checked your base URL of your API server using Postman. You provided the URL https://api.dectionaryapi.dev/ which is incorrect, the correct URL is https://api.dictionaryapi.dev/, change the code in hilt module to :

@Provides
@Singleton
fun provideRetrofitInstance(): Retrofit {
    return Retrofit.Builder()
        .baseUrl("https://api.dictionaryapi.dev/")
        .addCallAdapterFactory(NetworkResponseAdapterFactory())
        .addConverterFactory(GsonConverterFactory.create())
        .client(logingInterceptror())
        .build()
}

when dealing with network requests with a server i recommended to always use Postman and test the API before using it in your project because it might have internal errors that you cant handle. This way, you can ensure your endpoints are correct and that the server is responding as expected. also it's critical to handle all possible HTTP responses and not just success cases. Retrofit provides mechanisms for this, such as handling IOException for network errors or not successful HTTP responses. The error message "check your internet connection" usually arises due to a network error (like IOException), so it's important to handle this in your code.

make sure to rebuild your project to regenerate hilt dependencies.

I hope this helps you debug and solve your issue! Remember, when dealing with network operations, proper error handling is key.

huangapple
  • 本文由 发表于 2023年7月20日 19:08:16
  • 转载请务必保留本文链接:https://go.coder-hub.com/76729239.html
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