How to Download a File from URL Link in Android Java Tutorial

This tutorial will guide you to learn how to download a file from web in android java, we will first get a link to an image for downloading it, add required permissions and then pass the download link to the download manager for downloading, we will also set a path for saving the file to a location in the android device. If you can’t do it, you can contact me, i will fix or add it for you (see below for contact details)

First, Create a new android project in Android Studio or use an existing project.

Add these permissions in AndroidManifest.xml

 
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

 

Next, we need an image to test our download code, let’s try this cat’s image that is hosted in this website.

This is the direct link of the cat’s image

https://www.zidsworld.com/wp-content/uploads/2018/06/cat_1530281469.jpg

 

 

Open the MainActivity.java, Then add this code, this code should be placed below OnCreate method.

try {
File imageStorageDir = new File(Environment.getExternalStoragePublicDirectory(DIRECTORY_PICTURES), "myfolder");


if (!imageStorageDir.exists()) {
//noinspection ResultOfMethodCallIgnored
imageStorageDir.mkdirs();
}

// default image extension
String imgExtension = ".jpg";

if (image_uri.toString().contains(".gif"))
imgExtension = ".gif";
else if (image_uri.toString().contains(".png"))
imgExtension = ".png";
else if (image_uri.toString().contains(".3gp"))
imgExtension = ".3gp";

String date = DateFormat.getDateTimeInstance().format(new Date());
String file = getString(R.string.app_name) + "-image-" + date.replace(" ", "").replace(":", "").replace(".", "") + imgExtension;




DownloadManager dm = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
              Uri downloadUri = Uri.parse("https://www.zidsworld.com/wp-content/uploads/2018/06/cat_1530281469.jpg");
              DownloadManager.Request request = new DownloadManager.Request(downloadUri);

              request.setAllowedNetworkTypes(DownloadManager.Request.NETWORK_WIFI | DownloadManager.Request.NETWORK_MOBILE)
                      .setDestinationInExternalPublicDir(DIRECTORY_PICTURES + File.separator, file)
                      .setTitle(file).setDescription(getString(R.string.save_img))
                      .setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);

              dm.enqueue(request);

              Toast.makeText(getApplicationContext(), getString(R.string.downloading_img), Toast.LENGTH_LONG).show();


          } catch (IllegalStateException ex) {
              Toast.makeText(getApplicationContext(),"Storage Error", Toast.LENGTH_LONG).show();
              ex.printStackTrace();
          } catch (Exception ex) {
              // just in case, it should never be called anyway
              Toast.makeText(getApplicationContext(),"Unable to save image", Toast.LENGTH_LONG).show();
              ex.printStackTrace();


          }}

 

 

So this is the code for downloading image from a Web link URL to your android device’s pictures directory, the code will be executed as soon as you start the app or the MainActivity.

Conclusion

• This code will not cause exceptions because exceptions are caught, so your app will not crash when executing this code
• If your android device runs on marshmallow, you will need request permission before executing this code.
• This code is just for test, you can assign this code to a button or to your desired activity.
• You can try other direct download links to test this code

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Update: If you are new to android development, or just want fix this error, i can fix it for you for a small fee of US $5. Just send me your project or that java/kotlin file (The Activity where you wish to add this code) through email or google drive,  i can also do it online through TeamViewer, AnyDesk etc. I will fix your project or file and send it back to you. You can pay me through Paypal, PayTM, GooglePay, PhonePe, UPI etc. For more details, contact me below

Contact Now

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