How to downloaded with retofit in android jvav

Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. How to download a file with Retrofit2?

Ask Question. Asked 5 years, 11 months ago. Active 4 years, 8 months ago. Viewed 18k times. Improve this question. Community Bot 1 1 1 silver badge. Try to find out the line call which produces the NetworkOnMainThreadException and call it from another thread. Or call the whole downloadFile Method Parameters : There are a wide variety of possible options of parameters to pass inside a method:.

Note : Field requires a mandatory parameter. In cases when Field is optional, we can use Query instead and pass a null value. The MainActivity. To map the Model class to the response we use:. Running the application would call each of the endpoints and display a Toast message for them accordingly. This brings an end to Retrofit android example tutorial. You can download the Android Retrofit example project from the link below. OkHttpClient; import okhttp3.

HttpLoggingInterceptor; import retrofit2. Retrofit; import retrofit2. BODY ; builder. AppCompatActivity; import android. Bundle; import android. Log; import android. TextView; import android. CreateUserResponse; import com. MultipleResource; import com. User; import com. Hi anupam, Thank u so much for this tutorial. I always use this for my retrofit related queries and recommend this to others also.

But i noticed a mistake in the code u have given to write in build. But last time when i used it i got error in syncing. Only last day i found the reason. Hi, I have one query? So my problem is , that will not working properly. You can use a Debouncer method. Refer RxJava. Hii , is there any way to check the parameters passed to the api? Prev Android ListView using Kotlin. Next Android Auto-sizing TextView. Shoot him queries. Follow Author. Comments Pankaj Sharma says:.

June 4, at pm. May 29, at am. How to Upload Files to Server. How to Upload Multiple Files to Server. Upload Files with Progress. How to Download Files from Server. Download Files with Progress Updates. Basic Authentication on Android. Token Authentication on Android. Hawk Authentication on Android. How to Refresh an Access Token. Basics of Mocking Server Responses. Fluent Interface with Builders. Java projects come in all shapes and forms, thus adding Retrofit as a dependency might be not as straightforward as on Android.

However, if your Java project also uses gradle, you can simply add a line:. If your project doesn't use Gradle, you can download the. Keep in mind that Retrofit requires at least Java 7. Retrofit offers automatic conversion of payload formats e. These converters are not bundled with Retrofit. Instead, they're separate dependencies, which you'll also need to add to your project.

You can find an overview over the important converters and how to add them to your project in our introduction to converters tutorial.

The way how you add Retrofit to your project is the only difference to Android projects. The way you use Retrofit is the same on either platform. Fluent Interface with Builders. If you're reading this and you haven't written code for any Retrofit requests yet, please check our previous blog posts to get started. For all you Retrofit experts: the request declaration for downloading files looks almost like any other request:. If the file you want to download is a static resource always at the same spot on the server and on the server your base URL refers to, you can use option 1.

As you can see, it looks like a regular Retrofit 2 request declaration. Please note, that we're specifying ResponseBody as return type. You should not use anything else here, otherwise Retrofit will try to parse and convert it, which doesn't make sense when you're downloading a file. The second option is new to Retrofit 2. You can now easily pass a dynamic value as full URL to the request call. This can be especially helpful when downloading files, which are dependent of a parameter, user or time.

You can build the URL during runtime and request the exact file without any hacks. If you haven't worked with dynamic URLs yet, feel free to head over to our blog post for that topic: dynamic urls in Retrofit 2.

If you're confused by the ServiceGenerator. Once we've created the service, we'll make the request just like any other Retrofit call! There is just one thing left, which currently hides behind the function writeResponseBodyToDisk : writing the file to the disk!

The writeResponseBodyToDisk method takes the ResponseBody object and reads and writes the byte values of it to the disk. The code looks much more difficult than it actually is:.

You might need to adjust the first line on where and with what name your file is being saved. When you have done that, you're ready to download files with Retrofit! But we're not completely ready for all files yet.