Android Question Scale TextSize

[angel_]

I have a label that changes dimension in realtime, like this:

factor = 1.1
label1.Height = Round(factor * label1.Height)
label1.Width = Round(factor * label1.Width)
label1.TextSize = ??

How can I scale TextSize?

 

[Brian Dean]

How about using StringUtils.MeasureTextHeight? In reverse? The following works after a fashion, but needs some polishing.

Sub label1_Click
    label1.Height = Round(factor * label1.Height)
    label1.Width = Round(factor * label1.Width)
    Dim h As Int = label1.Height
    Do While (su.MeasureMultilineTextHeight(label1, label1.Text) < h)
        label1.TextSize = label1.TextSize + 1
    Loop   
End Sub

 

[Mahares]

How can I scale TextSize?

Here is a link to a code snippet that auto sizes the text based on the view. It can be applied to your situation and may be what you want. I tested it. I can post my code.

Automatically set the text size

This is based on a nice new feature in Android Support library. It automatically adjusts the view's text size to make it fit. You can call it with any of the following views: Label, Button, CheckBox, RadioButton, ToggleButton Note that the size will change whenever you set the text...

www.b4x.com

 

[angel_]

Both solutions work fine. I like the first one but is there a more direct way and avoid the loop?

 

[Brian Dean]

is there a more direct way and avoid the loop?

No, I don't think so. But why are you worried? I think that it will be responsive enough.

 

[angel_]

I think that it will be responsive enough.

You may be right, but there are many views and I would like it to work as quickly as possible

 

[LucaMs]

I like the first one but is there a more direct way and avoid the loop?

You may be right, but there are many views and I would like it to work as quickly as possible

So why not use Erel's solution, which simply performs an API call? ?

The only reason may be that it will only work with Android apps.

 

[angel_]

So why not use Erel's solution, which simply performs an API call? ?

I use B4XPages and with that solution I can't use it with B4i

 

[LucaMs]

Yes, I thought about it later and had already added the second line to the post

 

[Erel]

I use B4XPages and with that solution I can't use it with B4i

B4i labels has an option to adjust the font size automatically (Adjust Font Size To Fit).