B4J Question [SOLVED] Decrease the line Spacing with a TextFlow?

[MrKim]

In Java I guess it is possible to decrease line spacing

textFlow.setLineSpacing(-2.0);

Is it Possible in B4J?

Thanks for any help.

 

[stevel05]

Try

TextFlow.As(JavaObject).RunMethod("setLineSpacing",Array(-2.0))

If you are using Erel's Class, you will have to do it on the returned object after you've called CreateTextFlow.

    Dim pane As Pane = tf.CreateTextFlow
    MainForm.RootPane.AddNode(pane, 10, 10, 200, 100)
  
    pane.As(JavaObject).RunMethod("setLineSpacing",Array(-2.0))

 

[TILogistic]

In Java I guess it is possible to decrease line spacing

textFlow.setLineSpacing(-2.0);

Is it Possible in B4J?

Thanks for any help.

You can add more methods to the class.

TextFlow (JavaFX 8)

[class] TextFlow - Similar to B4A / B4i RichString

This class uses JavaObject to create a TextFlow node. With a TextFlow you can display rich text with different colors, fonts and other attributes. Usage: - Add the TextFlow class module to your project (Tools - Add Existing Module). - Create a TextFlow object. - Call AddText to add a text...

www.b4x.com

Example:

Public Sub SetLineSpacing(Spacing As Double) As TextFlow
    lastItem.RunMethod("setLineSpacing", Array(Spacing))
    Return Me
End Sub

Note:
It was also added to the library XUI Views (B4JTextFlow)

 

[stevel05]

If you want total control, you can use the new library I posted a few days ago https://www.b4x.com/android/forum/threads/b4j-textflow-and-text-class.143689/#content. It would be straightforward to add it to a custom view.

 

[MrKim]

Try

TextFlow.As(JavaObject).RunMethod("setLineSpacing",Array(-2.0))

If you are using Erel's Class, you will have to do it after you've called CreateTextFlow on the returned object.

    Dim pane As Pane = tf.CreateTextFlow
    MainForm.RootPane.AddNode(pane, 10, 10, 200, 100)
  
    pane.As(JavaObject).RunMethod("setLineSpacing",Array(-2.0))

Worked like a charm in terms of reducing the space between the text, Unfortunately, the purpose of this exercise is to reduce the height of the pane and as near as I can tell the pane created cannot be resized. Changing prefheight seems to have no effect even after adding it to my listview.
prefheight always shows as -1.

 

[stevel05]

The pane does resize when the line spacing changes. How that corresponds to it's size in a list view is another matter.

With just two or three lines you wouldn't see much of a reduction.

I don't think it's possible to change the size of a Textflow directly as it resizes to fit it's content.

Probably the best way would be to reduce the font size.

 

[MrKim]

The pane does resize when the line spacing changes. How that corresponds to it's size in a list view is another matter.

With just two or three lines you wouldn't see much of a reduction.

View attachment 135441

I don't think it's possible to change the size of a Textflow directly as it resizes to fit it's content.

Probably the best way would be to reduce the font size.

With what I am doing it probably doesn't resize enough to see the bottom of the pane. Thanks for your help. I will fiddle some more.