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tus-android-client

tus is a protocol based on HTTP for resumable file uploads. Resumable means that an upload can be interrupted at any moment and can be resumed without re-uploading the previous data again. An interruption may happen willingly, if the user wants to pause, or by accident in case of an network issue or server outage.

tus-android-client is a library meant to be used in addition to tus-java-client for uploading files using the tus protocol to any remote server supporting it. This package provides additional classes which makes interacting with the Java library easier on Android.

Usage

// This example consumes the tus-java-client and tus-android-client libraries
import io.tus.android.client.TusPreferencesURLStore;
import io.tus.java.client.TusClient;
import io.tus.java.client.TusUpload;
import io.tus.java.client.TusUploader;

// Create a new TusClient instance
TusClient client = new TusClient();

// Configure tus HTTP endpoint. This URL will be used for creating new uploads
// using the Creation extension
client.setUploadCreationURL(new URL("http://master.tus.io/files"));

// Enable resumable uploads by storing the upload URL in the preferences
// and preserve them after app restarts
SharedPreferences pref = getSharedPreferences("tus", 0);
client.enableResuming(new TusPreferencesURLStore(pref));

// Open a file using which we will then create a TusUpload. If you do not have
// a File object, you can manually construct a TusUpload using an InputStream.
// See the documentation for more information.
File file = new File("./cute_kitten.png");
TusUpload upload = new TusUpload(file);

// First try to resume an upload. If that's not possible we will create a new
// upload and get a TusUploader in return. This class is responsible for opening
// a connection to the remote server and doing the uploading.
TusUploader uploader = client.resumeOrCreateUpload(upload);

// Upload the file in chunks of 1KB as long as data is available. Once the
// file has been fully uploaded the method will return -1
while(uploader.uploadChunk(1024 * 1024) > -1) {
  // Calculate the progress using the total size of the uploading file and
  // the current offset.
  long totalBytes = upload.getSize();
  long bytesUploaded = uploader.getOffset();
  double progress = (double) bytesUploaded / totalBytes * 100;
}

// Allow the HTTP connection to be closed and cleaned up
uploader.finish();

The example application provides a more complete example in terms of interacting with the Android platform.

Installation

The JARs can be downloaded manually from our Bintray project. tus-java-client is also available in JCenter (Maven Central is coming soon).

Gradle:

compile 'io.tus.android.client:tus-android-client:0.1.0'

Maven:

<dependency>
  <groupId>io.tus.android.client</groupId>
  <artifactId>tus-android-client</artifactId>
  <version>0.1.0</version>
</dependency>

Documentation

The documentation of the latest version (master branch of git repository) can be found online at tus.github.io/tus-android-client/javadoc/.

License

MIT

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The tus client for Android.

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