Android Question Canvas.DrawBitMap works diffrent under Android 5.0 and 4.4 and below

[Bill Kantz]

The below snipet of code stacks gif file to create a final BMP for display. Run on 4.4 or below it works fine. When the code is run on 5.0 only the last gif is shown as if all the other prior gif are being overwritten instead of merged.

    Dim d As Bitmap
    d.Initialize(File.DirInternal, Station & "_County_Short.gif")
    C.DrawBitmap(d,Null,dr)

    Dim d As Bitmap
    d.Initialize(File.DirInternal, Station & "_Highways_Short.gif")
    C.DrawBitmap(d,Null,dr)


    Dim d As Bitmap
    d.Initialize(File.DirInternal, Station & "_City_Short.gif")
    C.DrawBitmap(d,Null,dr)

    Dim d As Bitmap
    d.Initialize(File.DirInternal, Station & "_N0R_Legend_0.gif")
    C.DrawBitmap(d,Null,dr)

    File.Delete(File.DirInternal,"b.bmp")
    File.Delete(File.DirInternalCache, "b.bmp")
   
    Dim b As Bitmap
   
    bout = File.OpenOutput(File.DirInternal, "b.bmp", False)
    b.WriteToStream(bout,100,"JPEG")
    bout.close
   
    Dim tmp As Bitmap
    tmp.Initialize(File.DirInternal,"b.bmp")

 

[Erel]

Can you upload a small project that demonstrates this issue?

 

[Bill Kantz]

Here is a small Project to demonstrate.

 

[Bill Kantz]

Closer investigation with Genny Motion the error occurs at Android 4.4.4 and works 4.4.2

 

[Bill Kantz]

Could if have something to do with:

HAS_ALPHA_LAYER_SAVE_FLAG