B4A Library [B4X][XUI] ExpandView - source code

Attached the version 2.0 (not compatible with the 1.0) - b4a code module and library (see post #6). This version allows to also collapse a B4XView.


Premise: I wanted to create an animation; it did not work the first time and then, from the wrong code, I wrote these few lines, nothing special (for this reason I do not charge € 100 ).

Very minimal code module / library.

This code uses my other code module / library, ViewPos; you could mix the two modules or replace the two methods used here in ExpandView:

ViewPos.GetBottom(Vw)
to
Vw.Top + Vw.Height - 1

and

ViewPos.GetRight(Vw)
to
Vw.Left + Vw.Width - 1


Note that jxExpandView and xExpandView libraries already "contains" ViewPos, you don't need to add it to your projects.

Example:
ExpandView.Expand(400, ImageView1, ExpandView.EXPVW_LEFT_TO_RIGHT)

applied to a xCustomListView:

 

[LucaMs]

Perfect; I just realized that the "same code" in b4j does not shows the same animation (animations start from the corners of the view).



Works SetLayoutAnimated differently in the two platforms?

 

[LucaMs]

Perfect; I just realized that the "same code" in b4j does not shows the same animation (animations start from the corners of the view).



Works SetLayoutAnimated differently in the two platforms?

No, SetLayoutAnimated works in the same way on all platforms (b4a, b4j and, I guess, also b4i).
Erel pointed out to me the problem that is only in the sample project:

The problem with the animation happens because the PreserveRatio property of the ImageView is set to True. So the image is scaled automatically. Set it to False and it should work.

Then the module will work well with b4j too.

 

[Alexander Stolte]

Ahh now i can unfold my color palette panel, thanks!
....

 

[LucaMs]

It would be more useful if you could also collapse a b4xView... but:

1) I had no intention of developing stuff like this
2) the best thing here is that you do not have to deal with the size of the view; if instead you want also to collapse it, you must store its size.

Well, if someone wants also the possibility to collapse the view and they will ask for this, maybe I will add this feature.

 

[LucaMs]

New version, with collapse; currently it is imperfect because of a small bug in SetLayoutAnimated (soon fixed by Aniwhere Software, I am sure ).

The minimum width of the first panel is set to 10dip, so you can touch it to open.

Very simple code:

Sub Activity_Create(FirstTime As Boolean)
'...
    ExpandView.Init
    ExpandView.AddView(Panel1, 2dip, 0, -1, ExpandView.EXPVW_DIR_BOTTOM_TO_TOP)
    ExpandView.AddView(Panel2, 2dip, 10dip, -1, ExpandView.EXPVW_DIR_LEFT_TO_RIGHT)
End Sub


Sub chkEpanded_CheckedChange(Checked As Boolean)
   ExpandView.Animate(Panel1, -1)
End Sub

Sub Panel2_Click
   ExpandView.Animate(Panel2, -1)
End Sub

 

[Alexander Stolte]

Ahh now i can unfold my color palette panel, thanks!
....

I correct myself, now I can unfold my palette. Thanks!

 

[LucaMs]

I correct myself, now I can unfold my palette. Thanks!

I fear that you have to correct yourself again , since I have not yet posted the new module/library at the moment.
This because it is not perfect; but probably I should not wait the next version of B4A !?

 

[LucaMs]

I have not yet posted the new module/library at the moment

probably I should not wait the next version of B4A !?

Attached to the first post (B4A version only).

 

[LucaMs]

currently it is imperfect because of

Now I could develop the module/library (including "collapsibility" ) without imperfections:
https://www.b4x.com/android/forum/threads/setlayoutanimated.93192/#post-589839

but is it worth it?

 

[LucaMs]

Ok, now I have a CLASS which works very well but it uses the @Informatix' library NineOldAndroids, then it will work only with b4a.

What should I do? I think a new thread!

 

[LucaMs]

What should I do? I think a new thread!

https://www.b4x.com/android/forum/threads/class-expandviews.93236/