Android Question Using variable as image name

Discussion in 'Android Questions' started by Reproretro, Jul 2, 2015.

  1. Reproretro

    Reproretro Member Licensed User

    Apologies if this has been asked before.

    I have about 100 images: icon_000, icon_001 to icon_100

    A number will be entered and the appropriate icon displayed. Is there any way to Dim, Initialize and use them as a variable, rather than repeating everything 100 times?
     
  2. sorex

    sorex Expert Licensed User

    you can build your name with

    name="icon_"&x

    where x can be edtNumer.text or a loop counter
     
  3. sorex

    sorex Expert Licensed User

    maybe it was wrong advice as I thought icon_000 was the filename of the icon.

    It all depends on how the app will work, it if just shows 1 icon after a number is entered than the hint is valid
    and you can use loadbitmap with 1 imageview and the variable filename instead of 100 imageviews that you hide and just show 1.
     
  4. Reproretro

    Reproretro Member Licensed User

    Sorry, my bad
    They are icon_000.gif, icon_002.gif ... icon_100.gif

    And I want to avoid

    Dim icon000, icon001, ... icon100 as bitmap

    icon_000.Initialize(File.DirAssets,"icon_000.gif")
    icon_000.Initialize(File.DirAssets,"icon_001.gif")
    ...
    icon_000.Initialize(File.DirAssets,"icon_100.gif")


    Select x
    case x = 0
    imgIcon.bitmap = icon_000
    case x = 1
    imgIcon.bitmap = icon_001
    ...
    case x = 100
    imgIcon.bitmap = icon_100
    end select
     
  5. sorex

    sorex Expert Licensed User

    Code:
    Dim icon as imageview
    dim nt as string
    icon.initialize(
    "")

    nt=
    1
    nt=
    "00"&nt
    nt=nt.SubString(nt.Length-
    3)
    icon.bitmap=
    loadbitmap(file.dirassets,"icon_"&nt&".gif")
    changing nt to 1, 64 or 397 will always remain in the 3 digit format.
     
    Reproretro and JordiCP like this.
  6. Reproretro

    Reproretro Member Licensed User

    I tried that but it produces a compile error - src\b4a\example\main.java:956: error: incompatible types: String cannot be converted to Bitmap
     
  7. sorex

    sorex Expert Licensed User

    just tried it and it works fine here.
     
  8. Reproretro

    Reproretro Member Licensed User

    Thank you for that. I will work on it tomorrow, it's past my bedtime.
    But thanks for confirming it works, so I know I have to look elsewhere my code for the problem
     
  9. Reproretro

    Reproretro Member Licensed User

    It's working now.
    Thank you :)
     
    DonManfred likes this.
  10. sorex

    sorex Expert Licensed User

    you're welcome
     
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