Erel, I couldn't send images within 300 milliseconds using the previous method, so I changed the server to WebSocket. I managed to connect to it using the following approach. However, now my problem is that I don't know how to send an image through WebSocket.
www.b4x.com
www.b4x.com
thanks broUse OkHttpUtils2
[B4X] OkHttpUtils2 with Wait For
Downloading resources is simpler with the new Resumable Subs feature. Using Wait For we can wait for the JobDone event in the same sub that started the download. No longer is it needed to have a single sub that handles all requests results. Simplest example: Dim j As HttpJob j.Initialize(""...
www.b4x.com
www.b4x.com
www.b4x.com
I have written the following code to send an image, and the code successfully returns "upload ok". However, on the server side, I'm not receiving anything. Can you help me troubleshoot the issue?One way is to use WebView
Upload files with WebView
Code requires Android 5+ 1. Set a custom WebViewChromeClient. It is implemented with inline Java code. 2. The ShowFile_Chooser event is raised when the user clicks on a "browse" button. 3. You need to get the file URI with FileProvider and call SendResult. Example based on ContentChooser...
There was a discussion about this.
Tips for uploading images to web hosting.
Hello, an application that I have been asked, the user can upload images to a web hosting. I have seen several threads on the subject, but I would like advice on the most comfortable and functional way to do it. Among my doubts, I seem to understand that it is necessary a php program in the...
Sub DownloadAndUploadImage(DownloadLink As String,Uploadlink As String, iv As ImageView)
Dim j As HttpJob
j.Initialize("", Me)
j.Download(DownloadLink)
Wait For (j) JobDone(j As HttpJob)
If j.Success Then
UploadImage(j.GetBitmap,Uploadlink)
iv.Bitmap = j.GetBitmap
End If
j.Release
End Sub
Sub UploadImage(Bitmap As Bitmap, UploadUrl As String)
Dim jj As HttpJob
jj.Initialize("", Me)
Dim OutputStream As OutputStream
OutputStream.InitializeToBytesArray(100)
Bitmap.WriteToStream(OutputStream, 100, "JPEG")
Dim ByteArray() As Byte = OutputStream.ToBytesArray
jj.PostBytes(UploadUrl, ByteArray)
Wait For (jj) JobDone(jj As HttpJob)
If jj.Success Then
Log("upload ok" )
Else
Log("upload error: " & jj.ErrorMessage)
End If
jj.Release
End Sub
www.b4x.com
I have seen this method before, but I don't know what values I should put in my code.for the upload you can use a postmultipart to your php file.
HttpJob Postmultipart with JSON and Image files
Hi I want to upload data to the server using HttpJob Postmultipart method. My data include JSON string and Two image files. Could you help me how to send these items in single post request? When i use JSON string instead of Map data , the IDE showing the warning Type mismatch.. Dim...
fd1.KeyName = "File"
fd1.Dir = File.DirRootExternal
fd1.FileName = file_upload
fd1.ContentType = "text/plain"
Erel, I couldn't send images within 300 milliseconds using the previous method, so I changed the server to WebSocket. I managed to connect to it using the following approach. However, now my problem is that I don't know how to send an image through WebSocket.
www.b4x.com
Thank you, erel, for the time you have spent. I managed to solve this issue with the same websocket. It's possible that in my initial approach, I had a problem that prevented me from realizing it could be related to my B4A code or server-side settings and code. Nevertheless, my problem was resolved using the new approach. However, if it's possible to extend the first library and add image transmission to it, I think it could potentially solve the issues for other people as well.
You can send strings or bytes. Converting the image to bytes is simple and isn't something that should be implemented in the WebSocket library.
"I had also tried the same approach initially, but I couldn't achieve a transmission speed of less than 300 milliseconds."
