I\'m currently using Retrofit by Square for Android network communications. Is there a way to get its progress during a task to create a progress notification, something sim
If you want to get the max value in order to show it on a ProgressDialog, Notification, etc.
ProgressListener
public interface ProgressListener {
void transferred(long num, long max);
}
CountingTypedFile
public class CountingTypedFile extends TypedFile {
private static final int BUFFER_SIZE = 4096;
private final ProgressListener listener;
public CountingTypedFile(String mimeType, File file, ProgressListener listener) {
super(mimeType, file);
this.listener = listener;
}
@Override
public void writeTo(OutputStream out) throws IOException {
byte[] buffer = new byte[BUFFER_SIZE];
FileInputStream in = new FileInputStream(super.file());
long total = 0;
try {
int read;
while ((read = in.read(buffer)) != -1) {
total += read;
this.listener.transferred(total, super.file().length());
out.write(buffer, 0, read);
}
} finally {
in.close();
}
}
}
This answer is for Retrofit 1. For solution compatible with Retrofit 2 see this answer.
I had the same problem and finally managed to do it. I was using spring lib before and what I show below kind worked for Spring but was inconsistent since I made a mistake on using it for the InputStream. I moved all my API's to use retrofit and upload was the last one on the list, I just override TypedFile writeTo() to update me on the bytes read to the OutputStream. Maybe this can be improved but as I said I made it when I was using Spring so I just reused it. This is the code for upload and it's working for me on my app, if you want download feedback then you can use @Streaming and read the inputStream.
ProgressListener
public interface ProgressListener {
void transferred(long num);
}
CountingTypedFile
public class CountingTypedFile extends TypedFile {
private static final int BUFFER_SIZE = 4096;
private final ProgressListener listener;
public CountingTypedFile(String mimeType, File file, ProgressListener listener) {
super(mimeType, file);
this.listener = listener;
}
@Override public void writeTo(OutputStream out) throws IOException {
byte[] buffer = new byte[BUFFER_SIZE];
FileInputStream in = new FileInputStream(super.file());
long total = 0;
try {
int read;
while ((read = in.read(buffer)) != -1) {
total += read;
this.listener.transferred(total);
out.write(buffer, 0, read);
}
} finally {
in.close();
}
}
}
MyApiService
public interface MyApiService {
@Multipart
@POST("/files")
ApiResult uploadFile(@Part("file") TypedFile resource, @Query("path") String path);
}
SendFileTask
private class SendFileTask extends AsyncTask<String, Integer, ApiResult> {
private ProgressListener listener;
private String filePath;
private FileType fileType;
public SendFileTask(String filePath, FileType fileType) {
this.filePath = filePath;
this.fileType = fileType;
}
@Override
protected ApiResult doInBackground(String... params) {
File file = new File(filePath);
totalSize = file.length();
Logger.d("Upload FileSize[%d]", totalSize);
listener = new ProgressListener() {
@Override
public void transferred(long num) {
publishProgress((int) ((num / (float) totalSize) * 100));
}
};
String _fileType = FileType.VIDEO.equals(fileType) ? "video/mp4" : (FileType.IMAGE.equals(fileType) ? "image/jpeg" : "*/*");
return MyRestAdapter.getService().uploadFile(new CountingTypedFile(_fileType, file, listener), "/Mobile Uploads");
}
@Override
protected void onProgressUpdate(Integer... values) {
Logger.d(String.format("progress[%d]", values[0]));
//do something with values[0], its the percentage so you can easily do
//progressBar.setProgress(values[0]);
}
}
The CountingTypedFile is just a copy of TypedFile but including the ProgressListener.