Android Question rdc bitmap

[buras3]

Hello

I am new to images manipulation
My question is how to download bitmap from the sql server
I can upload the bitmap as buffer()

i use service and get the result in "Sub JobDone(Job As HttpJob)"
but when i download to
"Table As DBResult" the buffer is too short
i tried job.getbitmap but i get an error
how can i get the bitmap ?

tank you
Michael

 

[Erel]

You must call reqManager.HandleJob to get the response data.

You can use reqManager.BytesToImage to convert the blob data to image.

 

[buras3]

i did but i get part of the value
[B@43e0cbf8

Dim result As DBResult = reqManager.HandleJob(Job)
     CallSub2(Mana, "Save_Manot", result )

Sub Save_Manot(Table As DBResult)
Dim ArryRow(4) As String
Dim i As Int
   For Each row() As Object In Table.Rows
     i=0
     For Each record As Object In row
       If i=0 Then ' first col

           Log(record)

 

[buras3]

ok i checked again and the record is full but still no image showing

  For Each row() As Object In Table.Rows
     i=0
     For Each record As Object In row
       If i=2 Then
         Dim ins As InputStream
        Dim bmp As Bitmap
         
           Dim jpeg() As Byte
        jpeg=record
         
         ins.InitializeFromBytesArray(jpeg, 0, jpeg.Length)
        bmp.Initialize2(ins)
         
         ImgMana.Color=Colors.Black
         ImgMana.Bitmap=bmp

what am i doing wrong?

 

[Erel]

Why don't you use ImgMana.Bitmap = reqManager.BytesToImage(record)?
Are you sure that there is a valid image in that blob?

 

[buras3]

I did tried this also
the byte array is full
the bmp has size

 

[Erel]

What is the output of Log(bmp)?

 

[buras3]

the log(bmp)
(Bitmap): 1840 x 3264

i also checked the sql server with sql image viewer and the images are valid there

the mWidth of the bmp is -1 (0xFFFFFFFF)
is it a problem ?

 

[Erel]

Maybe you are adding it to the wrong ImageView?

Try: Activity.SetBackgroundImage(bmp)

Another possible issue is that the image is too large. You can save it to a file and then load it with LoadBitmapSample.

 

[buras3]

i have tried SetBackgroundImage
and saving the file (not saving - no error)

bmp=DB_Service.reqManager.BytesToImage(record)
ons= File.OpenOutput(File.DirRootExternal & "/DiningRoom","test.jpg", False)
bmp.WriteToStream(ons,100,"JPEG" )
ons.Close

 

[buras3]

Ok i don't know why but i changed the package name from b4a.example to a new name
and every thing is working fine
now i will remember for sure to change it first thing for my next projects
tank you for the help