Android Question how to get listview1 itemcolor?

[xiaoyao]

can't run

Sub GetSystemTextColor As Int
    Dim co As Int

    Dim typedValue As JavaObject
    typedValue.InitializeNewInstance("android.util.TypedValue", Null)
    
    Dim theme As JavaObject = Activity
    theme = theme.RunMethod("getTheme", Null)
    Dim value As Boolean = theme.RunMethod("resolveAttribute", Array As Object(android.R.attr.textColorPrimary, typedValue, True))
    
    If value Then
        Return typedValue.GetField("data")
    Else
        Return Colors.Black '
    End If
    
End Sub

 

[teddybear]

1. As Erel suggested, why don't you use customlistview instead of listview?
2. The code looks like it was generated by AI. it seems to only retrieve the theme's textColorPrimary, and has nothing to do with the listview.
3. If you would like to get the textColorPrimary, you need to initialize the object android.R.attr instead of passing a literal "android.R.attr.textColorPrimary" as a parameter.
4. You'd better post full error log. I guess it's not "can't run" but "can't compile"

 

[Sagenut]

can't run

Sub GetSystemTextColor As Int
    Dim co As Int

    Dim typedValue As JavaObject
    typedValue.InitializeNewInstance("android.util.TypedValue", Null)
 
    Dim theme As JavaObject = Activity
    theme = theme.RunMethod("getTheme", Null)
    Dim value As Boolean = theme.RunMethod("resolveAttribute", Array As Object(android.R.attr.textColorPrimary, typedValue, True))
 
    If value Then
        Return typedValue.GetField("data")
    Else
        Return Colors.Black '
    End If
 
End Sub

Without knowing what you are exactly doing it's not easy to answer.
If you are adding simple items like

ListView1.AddSingleLine("HELLO")

then you can do this to get the text color

Dim Label1 As B4XView = ListView1.SingleLineLayout.Label
Log(Label1.TextColor)    'Color of the Text
Log(Label.Color)        'Color of the Item

supposing that ALL the items have the same color.

 

[LucaMs]

supposing that ALL the items have the same color.

I haven't used ListView since 1492, CustomListView is vastly better, but I think that's ONE of the MANY limitations of ListView, that you can't have items with different "styles".

 

[xiaoyao]

ListView1.AddSingleLine("abc")
'ListView1.a
Dim Label1 As B4XView = ListView1.SingleLineLayout.Label

Log(Label1.TextColor) 'Color of the Text
xui.MsgboxAsync(Label1.Color & "," & Label1.TextSize,"")
more times,textcolor=0(white)
i only want set listview1 bgcolor to yellow or black

hot to get not same color?textcolor=black, than bgcolor=white

Without knowing what you are exactly doing it's not easy to answer.
If you are adding simple items like

ListView1.AddSingleLine("HELLO")

then you can do this to get the text color

Dim Label1 As B4XView = ListView1.SingleLineLayout.Label
Log(Label1.TextColor)    'Color of the Text
Log(Label.Color)        'Color of the Item

supposing that ALL the items have the same color.