Download file retrofit

Context; import android. Intent; import android. Environment; import android. NotificationCompat; import android. LocalBroadcastManager; import android. Toast; import com. Download; import java. BufferedInputStream; import java. File; import java. FileOutputStream; import java. IOException; import java. InputStream; import java. OutputStream; import okhttp3. Builder this. Manifest; import android. BroadcastReceiver; import android. IntentFilter; import android.

PackageManager; import android. Snackbar; import android. ActivityCompat; import android. Your email address will not be published. Github Project Link. 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. 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. There is one major issue: by default, Retrofit puts the entire server response into memory before processing the result. If your app needs to download even slightly larger files, we strongly recommend reading the next section.

In order to avoid that, we've to add a special annotation to the request declaration:. The Streaming declaration doesn't mean you're watching a Netflix file. It means that instead of moving the entire file into memory, it'll pass along the bytes right away. But be careful, if you're adding the Streaming declaration and continue to use the code above, Android will trigger a android.

Thus, the final step is to wrap the call into a separate thread, for example with a lovely ASyncTask:. You can still use the same writeResponseBodyToDisk method. If you remember the Streaming declaration and this snippet, you can download even large files with Retrofit efficiently. If you download files in the foreground and they are not small, you might want to inform the user on your actions. Ideally, you would display progress updates how much you've downloaded already.

We've another tutorial on how to download files with progress updates. In this tutorial you've seen how to download files with Retrofit efficiently. This is everything you need to know to download files with Retrofit. If you've any questions, let us know in the comments or on twitter. Still Have Questions? Get Our Retrofit Book! All modern Android apps need to do network requests. Retrofit offers you an extremely convenient way of creating and managing network requests. From asynchronous execution on a background thread, to automatic conversion of server responses to Java objects, Retrofit does almost everything for you.

Once you've a deep understanding of Retrofit, writing complex requests e. Invest time to fully understand Retrofit's principles. Bao Spark. Bao 4, 2 2 gold badges 29 29 silver badges 34 34 bronze badges. I used the following code for downloading the any type of file using retrofit Ameen Maheen Ameen Maheen 2, 1 1 gold badge 25 25 silver badges 28 28 bronze badges. I have tested it in android 6 and doesn't work 0 — Rodrigo. Include following function in MainActivity. Navneet Goel Navneet Goel 6 6 bronze badges.

Prashant Sharma Prashant Sharma 1, 1 1 gold badge 20 20 silver badges 28 28 bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Podcast what if you could invest in your favorite developer? Who owns this outage? Building intelligent escalation chains for modern SRE.