Android Question random image with no repeat in button

juniorteacher

Member
Licensed User
after fix my problems with random without repeat in button text, i want add image in button based on the button text, but get failed

B4X:
Sub Globals
'These global variables will be redeclared each time the activity is created.
'These variables can only be accessed from this module.
Dim btn(8) As Button
Dim i, k, x,j As Int
End Sub

Sub Activity_Create(FirstTime As Boolean)
'Do not forget to load the layout file created with the visual designer. For example:
'Activity.LoadLayout("Layout1")

For i = 0 To 7
btn(i).Initialize("btn")
Activity.AddView(btn(i),5%x,15dip + i*75,80%x,60dip)
btn(i).Text = i
Next
For j = 0 To 7
k = Rnd(j, 8) 'error in this section
x = btn(j).Text
btn(j).SetBackgroundImage(LoadBitmap(File.DirAssets,j & ".png"))
btn(j).Text = btn(k).Text
btn(k).SetBackgroundImage(LoadBitmap(File.DirAssets,k & ".png"))
btn(k).Text = x
Next

End Sub
 

asales

Well-Known Member
Licensed User
the number random, but the image can't random :)
i find code for the image can random.
thanks for trying help,.
Fixed. Try this code:
B4X:
For j = 0 To 7
        k = Rnd(0, 8)
        btn(j).TextColor = Colors.Blue
        btn(j).TextSize = 18
        btn(j).SetBackgroundImage(LoadBitmap(File.DirAssets,k & ".png"))
        btn(j).Text = k
    Next
 

RandomCoder

Well-Known Member
Licensed User
@juniorteacher if this is the same problem as you previously posted where you want unique and random values then I suggest that you add each image and text to a list and randomly remove from the list and assign to each button as previously suggested. Trust me, it will be far simpler. Have a go and if you encounter problems I'll help.
 
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