Android Question Scrollview panel height question

[Gerardo52]

Hi to everyone.

I have this code inside firstime of an activity:

ScrollView1.Left = 0
        ScrollView1.Width = Activity.Width
 
        ScrollView1.Panel.AddView(ImageView1,0dip,0dip,Activity.Width,160dip)
        ScrollView1.Panel.AddView(ImageView2,0,1*170dip,Activity.Width,160dip)
        ScrollView1.Panel.AddView(ImageView3,0,2*170dip,Activity.Width,160dip)
        ScrollView1.Panel.AddView(ImageView4,0,3*170dip,Activity.Width,160dip)
        ScrollView1.Panel.AddView(ImageView5,0,4*170dip,Activity.Width,160dip)
        ScrollView1.Panel.AddView(ImageView6,0,5*170dip,Activity.Width,160dip)
        ScrollView1.Panel.AddView(ImageView7,0,6*170dip,Activity.Width,160dip)
        ScrollView1.Panel.AddView(ImageView8,0,7*170dip,Activity.Width,160dip)
        ScrollView1.Panel.AddView(ImageView9,0,8*170dip,Activity.Width,160dip)
        ScrollView1.Panel.AddView(ImageView10,0,9*170dip,Activity.Width,160dip)
        ScrollView1.Panel.AddView(ImageView11,0,10*170dip,Activity.Width,160dip)
        ScrollView1.Panel.AddView(ImageView12,0,11*170dip,Activity.Width,160dip)
        ScrollView1.Panel.AddView(ImageView13,0,12*170dip,Activity.Width,160dip)
        ScrollView1.Panel.AddView(ImageView14,0,13*170dip,Activity.Width,160dip)
        ScrollView1.Panel.AddView(ImageView15,0,14*170dip,Activity.Width,160dip)
        ScrollView1.Panel.AddView(ImageView16,0,15*170dip,Activity.Width,160dip)
        ScrollView1.Panel.AddView(ImageView17,0,16*170dip,Activity.Width,160dip)
        ScrollView1.Panel.AddView(ImageView18,0,17*170dip,Activity.Width,160dip)
        ScrollView1.Panel.AddView(ImageView19,0,18*170dip,Activity.Width,160dip)
        ScrollView1.Panel.AddView(ImageView20,0,19*170dip,Activity.Width,160dip)
        ScrollView1.Panel.AddView(ImageView21,0,20*170dip,Activity.Width,160dip)
        ScrollView1.Panel.AddView(ImageView22,0,21*170dip,Activity.Width,160dip)
        ScrollView1.Panel.AddView(ImageView23,0,22*170dip,Activity.Width,160dip)
        ScrollView1.Panel.AddView(ImageView24,0,23*170dip,Activity.Width,160dip)
        ScrollView1.Panel.AddView(ImageView25,0,24*170dip,Activity.Width,160dip)
 
        ScrollView1.Panel.Height = 25*170dip

The result is not how I expect, because the ScrollView1.Panel.Height never result exactely the sum of all the imageview Height. Alway more or less (in this case very less).

What is my mistake? Someone know what is the correct way todo?

Thank you

 

[Erel]

Why not use xCLV for this? It will be simple and it will give you more features that you will probably need in the future.

you can set the divider height to 0 if you like.

 

[Gerardo52]

Hi Erel
I never used this solution.
Have you some good example with images involved?
My app is quite finished, this issue is the last I have.
From your reply I presume is not easy to do with scrollview, right?

Thank you indeed

 

[Erel]

There are many examples with images. Including examples with hundreds of images: https://www.b4x.com/android/forum/t...-imageviews-and-many-rows.101431/#post-636920
However your case is simpler. You just need to add a few items with ImageViews.

Start here: [B4X] [XUI] xCustomListView - cross platform CustomListView

Creating such a layout with ScrollView directly shouldn't be difficult. I don't see a problem in your code. Probably somewhere else.

 

[Gerardo52]

Thank you so much Erel.
I go to look at what you suggest.
I will let you know

Thanks

 

[Gerardo52]

Hi to all

Just fixed the scrollview issue:
In my designer layout the scrollview had an height greater than the activity height.
Just when set an height (Distance from bottom border) minor (positive value, not negative) than that all works fine.

And this is the code that set the parameter in the runtime:

ScrollView1.Panel.Height = DipToCurrent(25*170)

Thank you so much Erel for support.