Android Tutorial ListView tutorial

wmardian

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• Sep 15, 2014

• #201

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

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• Sep 15, 2014

• #202

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

 

wmardian

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• Sep 15, 2014

• #203

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

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• Nov 7, 2014

• #204

Hello,
is it possible to enlarge the bitmap?

 

DonManfred

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• Nov 7, 2014

• #205

B4X:

    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

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• Dec 4, 2014

• #206

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

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• Dec 4, 2014

• #207

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

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• Dec 4, 2014

• #208

DonManfred said:

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

Click to expand...

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

Thanks!

 

Tayfur

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• Jun 27, 2015

• #209

Hello;

I add some codes for my app.

B4X:

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

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• Jun 27, 2015

• #210

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

CustomListView and CheckList are better.

 

Tayfur

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• Jun 27, 2015

• #211

LucaMs said:

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

CustomListView and CheckList are better.

Click to expand...

thanks Luca for your infomations

 

MaFu

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• Jun 28, 2015

• #212

And instead of

B4X:

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

you better use

B4X:

If z Mod 2 = 0 Then

 

P

pcbtmr

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• Feb 17, 2016

• #213

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

 

Erel

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• Feb 18, 2016

• #214

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

 

P

pcbtmr

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• Feb 19, 2016

• #215

Excellent.
Thank you.

 

carlos7000

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• Feb 22, 2016

• #216

Hi.

You can change the font with a monospace?

 

DonManfred

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• Feb 22, 2016

• #217

carlos7000 said:

You can change the font with a monospace?

Click to expand...

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

B4X:

lv.SingleLineLayout.Label.Typeface = Typeface.MONOSPACE

 

Last edited: Feb 22, 2016

M

marylandd

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• Mar 27, 2016

• #218

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

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• Mar 27, 2016

• #219

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

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• Jun 8, 2016

• #220

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)

B4X:

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)