Android Tutorial ListView tutorial

Don't use ListView.
Use xCustomListView - it is more powerful, easier to work with and cross platform.

 

[wmardian]

Dear Manfred,
Many thanks.. i did write above code and the result is as expected .
So there must be something wrong with my code in other project files..


Let me re-check it again
Thanks and Regards

 

[DonManfred]

Better Start a new thread if you encounter problems and post your project (Export as zip)

 

[wmardian]

Thanks Don..
I will do it next time..
Anyway, finally i found the root cause.. i use "layout with bitmap" but i change the color on TwoLinesLayout.

Sorry to bother you..

Rgds

 

[imgsimonebiliato]

Hello,
is it possible to enlarge the bitmap?

 

[DonManfred]

    LV.TwoLinesAndBitmap.ItemHeight = 150dip
    LV.TwoLinesAndBitmap.ImageView.Height = 140dip
    LV.TwoLinesAndBitmap.ImageView.Width = 140dip
    LV.TwoLinesAndBitmap.Label.Left = 150dip
    LV.TwoLinesAndBitmap.SecondLabel.Left = 150dip
   
    Dim cover As Bitmap
    cover.Initialize(File.DirAssets,"clipboard.png")
   
    For i = 1 To 10
    LV.AddSingleLine("Category #" & i)
        For a = 1 To 20
       
            LV.AddTwoLinesAndBitmap("Item #" & i&"."&a, "This is the second line.", cover)
        'LV.AddTwoLinesAndBitmap("Item #" & i, "This is the second line.", Bitmap1)    
      Next
  Next

 

[Martin Larsen]

How can I disable a listview item so it is not clickable?

In classic Androd it can be done like described here: http://stackoverflow.com/questions/5126581/can-i-make-a-listview-item-not-selectable

 

[DonManfred]

You can not disable a item. You can store a special info inside the return-value (when using addsingleline2) and the just ignore a click on such a item.
You can consider using a customlistview instead. Here you have all possibilities...

 

[Martin Larsen]

You can consider using a customlistview instead. Here you have all possibilities...

You are right. I just took a look a it, that is much better suited for my app.

Thanks!

 

[Tayfur]

Hello;

I add some codes for my app.

For z=0 To kull_liste.Size-1
    'veri=kull_liste.Get(z)
    If Floor(z/2)*2=(z/2)*2 Then
        ListView1.SingleLineLayout.Label.TextColor = Colors.Yellow
        Else
        ListView1.SingleLineLayout.Label.TextColor = Colors.White
    End If
    ListView1.AddSingleLine(kull_liste.Get(z))
    DoEvents
Next

result is not good. Because; I am waiting lines colors are 1.yellow, 2 white, 3 y, 4 w, 5 y, 6w, ..... I expect that sequence,

Now; I see 1.Y 2w,3w,4y,5w,6y,7y,8y,9w,10w,...
or 1.Y,2y,3w,4w,5w,6y,7w,,8y,9y,10w......

result is every time randomly... I cant understand it.
I checked my code on debuger mode. Iit is works.
Why nort line colors sequence?

 

[LucaMs]

You can not set different colors for items, in ListView.

CustomListView and CheckList are better.

 

[Tayfur]

You can not set different colors for items, in ListView.

CustomListView and CheckList are better.

thanks Luca for your infomations

 

[MaFu]

And instead of

If Floor(z/2)*2=(z/2)*2 Then

you better use

If z Mod 2 = 0 Then

 

[pcbtmr]

What is the way to set the scrolling background color to the designer-set background color?

 

[Erel]

You can always set it to Colors.Transparent and it should match the actual background.

 

[pcbtmr]

Excellent.
Thank you.

 

[carlos7000]

Hi.

You can change the font with a monospace?

 

[DonManfred]

You can change the font with a monospace?

Yes. Change the layout´s Label (or secondlabel) Typeface...

lv.SingleLineLayout.Label.Typeface = Typeface.MONOSPACE

 

[marylandd]

helllo friends, i am new to b4a , i have some images in my sqlite, how i can create a listview with text and different image? tnx in advance

 

[Erel]

See the SQLite tutorial. It shows you how to read blob images from a database.

https://www.b4x.com/android/forum/threads/6736/#content

 

[Alberto Iglesias]

The ListView Control with a large number of itens WITH bitmaps from photos, got OUT OF MEMORY error.

What´s the best (or correct) way to show a image list from a folder (I got this error after some photos loaded)

lstFiles.AddTwoLinesAndBitmap2( "text1","text2",  LoadBitmapSample(imageDir,imageFile,512,512),strFilePath)

Error in this line after some photos:

Downsampling image due to lack of memory: 4
Downsampling image due to lack of memory: 8
Downsampling image due to lack of memory: 16
Downsampling image due to lack of memory: 32
Downsampling image due to lack of memory: 64
java.lang.RuntimeException: Error loading bitmap (OutOfMemoryError)