當我通過Gmail Api for Android插入郵件時,試圖獲取有關我的asyncTask進度的信息時,我感到沮喪。檢查上傳的進度(Google GMail API for Android)
我正在嘗試使用MediaHttpUploaderProgressListener,但問題是我只是從插入的getMediaHttpUploader()方法中取出null。
我覺得我失去了一些東西中間大走出getMediaHttpUploader的預期反應...
這是我的代碼:
private class TareaGestionEnvioMails extends AsyncTask<Void, Void, Message> {
@Override
protected Message doInBackground(Void... params) {
try {
if (mensaje != null) {
String user = "me";
Gmail.Users.Messages.Insert insert = servicioGmail.users().messages().insert(user, mensaje);
MediaHttpUploader uploader = insert.getMediaHttpUploader();
//getMediaHttpUploader returns me null value :(
uploader.setDirectUploadEnabled(false);
uploader.setChunkSize(1024*256);
uploader.setProgressListener(new FileUploadProgressListener());
mensaje = insert.execute();
}
return mensaje;
} catch (Exception e) {
mLastError = e;
cancel(true);
return null;
}
}
...
private class FileUploadProgressListener implements MediaHttpUploaderProgressListener {
public FileUploadProgressListener() {
}
@Override
public void progressChanged(MediaHttpUploader mediaHttpUploader) throws IOException {
if (mediaHttpUploader == null) return;
switch (mediaHttpUploader.getUploadState()) {
case INITIATION_STARTED:
pantallaPrincipal.onProgresoEnviarMail(0.0, "INITIATION_STARTED");
break;
case INITIATION_COMPLETE:
pantallaPrincipal.onProgresoEnviarMail(0.0, "INITIATION_COMPLETE");
break;
case MEDIA_IN_PROGRESS:
double percent = mediaHttpUploader.getProgress() * 100;
pantallaPrincipal.onProgresoEnviarMail(percent, "MEDIA_IN_PROGRESS");
break;
case MEDIA_COMPLETE:
pantallaPrincipal.onProgresoEnviarMail(100.0, "MEDIA_COMPLETE");
}
}
}
謝謝大家!這是我第一次發佈在Stackoverflow上!