Android Question write.Object problem i for Bitmap (return null)

[Tayfur]

I cheked my list on write in file.
T_bitmap is Full/ok

Read my list in file.

Return is Null

I cant understand it. I read mylist. After check values. Bitmap filed is Null!!!!
where is the problem.

Sub sample()
 
 
'    Type T_MYTypes( _
'    URL As String, _
'    T_Bitmap As Bitmap, _
'    State As Boolean)
' 
 
    Dim  mylist As List 
    Dim a1, a2 As T_MYTypes
 
    a1.Initialize
    a1.State=True
    a1.URL="image 1"
    a1.T_Bitmap.Initialize(File.DirAssets,"red.jpg")
 
    a2.Initialize
    a2.State=False
    a2.URL="image 2"
    a2.T_Bitmap.Initialize(File.DirAssets,"green.jpg")
    mylist.Initialize
    mylist.Add(a1)
    mylist.Add(a2)
    Dim raf As RandomAccessFile
 
 
 
    raf.Initialize(File.DirDefaultExternal,"xxx.dat",False)
    raf.WriteObject(mylist,False,raf.CurrentPosition)
    raf.Close
 
    DoEvents
 
    Dim raf1 As RandomAccessFile
    Dim newlist As List
    newlist.Initialize
    raf1.Initialize(File.DirDefaultExternal,"xxx.dat",False)
    newlist=raf1.ReadObject(raf1.CurrentPosition)
    raf1.Close
 
 
End Sub

 

[DonManfred]

The following types of objects are supported: lists, maps, arrays, strings, primitive types (numeric types) and user defined types.
Combinations of these types are also supported.

I think bitmap is not supported

 

[Tayfur]

do you have any way / idea?
I solved separet with bitmap and other values.
it is not usefull. records has alot of files.

 

[fixit30]

You should convert the bitmap to a byte array

 

[Tayfur]

I used your way. it is worked . So file capacity big.
Thanks for helps. @fixit30 @DonManfred

I will separeted.

 

[DonManfred]

So file capacity big

What did you expect when you put all imagebytearrays to the list to store them in a file?

 

[Tayfur]

@DonManfred , I hope see same file size.
I try 4 diffrent way
and result is in pictures.

files size (My database with in pictures) x 5 = file size (may databese without pic + 8 picture files)

8 pic+db= 1mb
80pic+db=10mb
400pic+db=50mb

50mb files problem for sharing

this database for backup. small size is better for sharing.
I will use @Informatix 's Archiver for ZIP files.

thanks for helps.

 

[DonManfred]

I hope see same file size.

Then DONT Store imagebytearrays in it.
Most pobably it is better to store just the filename and path instead of the hole bitmap

 

[Tayfur]

Then DONT Store imagebytearrays in it.
Most pobably it is better to store just the filename and path instead of the hole bitmap

thanks @DonManfred