Putting images in buttons

[FFMan]

how do i load an image to a button. I've added the image to the activity in the designer but I can't see where to specify the image against the button.

thanks

 

[susu]

You can add image button directly in Designer. Just like this

 

[Stan]

i don't have a field for image file

i don't have a field for image file (Button), why is my designer different??

Stan

 

[klaus]

Under Button properties you have by default:
- Drawable : DefaultDrawable

You should click on DefaultDrawable and then select StatelistDrawable in the list.
Then you get three different states:
- Enabled Drawable
- Disabled Drawable
- Pressed Drawable

For each of these you have by default ColorDrawable.
Clicking on ColorDrawable gives you the choice between:
- ColorDrawable
- GradientDrawable
- BitmapDrawable

Select BitmapDrawable in the list and you'll get the Image file field.

Best regards.

 

[Smee]

Is there a way to programmatically change the button picture? so that after the button is pressed the picture is toggled to a new one?

For example a picture of stop being changed to go?

 

[Erel]

Search the site for StateListDrawable. It allows you to programmatically change the drawables.

 

[Smee]

Thank you

That did it

 

[Smee]

Erel,

I was able to achieve my aim with a single button but whe i tried an array it does not work
can you see where i have gone wrong

      Dim bdwOn As BitmapDrawable
      bdwOn.Initialize(LoadBitmap(File.DirAssets, "Base ButtonP3.png"))
      bdwOff.Initialize(LoadBitmap(File.DirAssets, "bevel1.jpg"))
      Dim sld As StateListDrawable
      sld.Initialize
      sld.AddState(sld.State_Pressed, bdwOn)

   Dim Top As Int
   Top=20
   For x= 0 To 11
      Dim btnMaint As Button
      btnMaint.Initialize("btnMaintenance")
      btnMaint.Background=sld
      btnMaint.TextSize=36
      btnMaint.TextColor=Colors.Yellow
      btnMaint.Tag=x
      Activity.AddView(btnMaint,20,Top,200,80)
      Top=Top+82
   Next

 

[Erel]

You will need to create a StateListDrawable for each button. You can (and should) reuse the BitmapDrawables.

 

[Smee]

Ok I have the following code but it still does not work

   Dim bdwOn As BitmapDrawable
   bdwOn.Initialize(LoadBitmap(File.DirAssets, "Base ButtonP3.png"))
   Dim Top As Int
   Top=20
   For x= 0 To 11
      Dim sld As StateListDrawable
      sld.Initialize
      sld.AddState(sld.State_Pressed, bdwOn)

      Dim btnMaint As Button
      btnMaint.Initialize("btnMaintenance")
      btnMaint.Background=sld
      btnMaint.TextSize=36
      btnMaint.TextColor=Colors.Yellow
      btnMaint.Tag=x
      Activity.AddView(btnMaint,20,Top,200,80)
      Top=Top+82
   Next

What am i still missing?

 

[Erel]

In which way doesn't it work?

You should add at least the catch all state.

 

[Smee]

Erel,

If i dim the button as a toggle button it works. Is there a way to do an ordinary button?

 

[Erel]

Yes. Please start a new thread for this question and I'll write an example.

 

[drfjm]

Thanks, this was very helpful, indeed!

 

[Marquin]

I'm doing buttons in code, and don't know how to make a button have an image. I have done it with the designer but don't want to have to draw 36 buttons on designer and change each of their images when I have created code that makes all 36 buttons for me.

Would love to hear ideas and such.

Marquin

 

[Erel]

This is an old thread. You should have started a new thread instead. Search the site for StateListDrawable.

 

[Marquin]

Alright, Thank you