Android Code Snippet Button Text Autosizer

Greetings,

about time I gave back to the community a little. Below is a snippet I use as a helper to size the text on my buttons, when they need to be dynamically sized. It supports a very wide range of device layouts. Let me now if you ever find it showing up strangely and we can find and tweak the problem.

Regards,
Martin

Public Sub btnTestSizer(mBtn As Button, multipleLines As Boolean, maxSize As Int) As Int
    Dim sl As Object
    sl = mBtn.Background
 
    Dim size As Float
 
    For size = 2 To maxSize
        If btnCheckSize(mBtn, size, multipleLines) Then Exit
    Next
    size = size - 0.5
    If btnCheckSize(mBtn, size, multipleLines) Then size = size - 0.5
 
    mBtn.Background = sl
    Return size
End Sub

Private Sub btnCheckSize(mBtn As Button, size As Float, MultipleLines As Boolean) As Boolean
    Private cvs As Canvas
    Private su As StringUtils
    cvs.Initialize(mBtn)
 
    mBtn.TextSize = size
    If MultipleLines Then
        Return su.MeasureMultilineTextHeight(mBtn, mBtn.Text) > mBtn.Height*0.75
    Else
        If (cvs.MeasureStringWidth(mBtn.Text, mBtn.Typeface, size) > mBtn.Width) = True Or _
           (su.MeasureMultilineTextHeight(mBtn, mBtn.Text) > mBtn.Height*0.6) = True Then
            Return True
        Else
            Return False
        End If
    End If
End Sub

Implementation example:

b2.Text = "Blah Blah Blah"
b2.Textsize = Utils.btnTestSizer(b2,False,30dip)