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Canvas.MeasureStringHeight is based on a lower level API that doesn't behave in the same way that a Label or EditText will behave. StringUtils uses the same measurement process as the views.
link: Thanks for the explanation and the link (I've not read this before as I mistakenly thought it related only to the designer). But for me @Erel the real
link: But how should it be done as it's not always possible to use the designer to create views. For instance I'm designing a class that could be used full

Note that it is not possible to accurately draw a border around text, like done in this example, with the standard Canvas.MeasureStringHeight method as it only returns the total height and lacks the height above baseline. This is a good point. In B4J and B4i you can call this method without initia
link: Since two years I'm good with using the known methods. What makes wonder is the object's/method's name "B4XCanvas.MeasureText". Here a canvas is use
link: (It took me 7 years to get this one right.) 67684 https://www.b4x.com/basic4android/images/SS-2018-05-09_13.04.52.png https://www.b4x.com/basic4an

So I create a background of every label as much as its text is. That works perfectly. If beforebtnslength > Activity.Width Then ycounter = ycounter + 1 beforebtnslength = 0 Else If beforebtnslength + SQLReader.GetString("name").Length*3%x > Activity.Width Then ycounter = ycounter + 1
link: 1. The layout anchors are wrong. 2. You are not using B4XPages which is a programming mistake. 3. Other than that I don't understand anything from thi
link: Thanks for the answer Erel! My whole code is about 1000 lines. I tried to write only the part I create the labels. What do you mean the layout anchor

To set the label height I use this code Dim cn As Canvas cn.Initialize(Activity) lbl.Height=cn.MeasureStringHeight("T", Typeface.DEFAULT,14) To display correctly, the height of the label must be doubled. Does it depend on the screen settings? How to do it right?
link: This is because this function is only for single-line text. Use this code snipped: https://www.b4x.com/android/forum/threads/b4x-measuremultilinetext
link: The width also needs to be increased. Attached an example.

Unfortunately your code will not work in all cases because Canvas1.MeasureStringHeight returns different values depending on the text. Example: Canvas1.MeasureStringHeight("a", Typeface.DEFAULT, 16) Canvas1.MeasureStringHeight("A", Typeface.DEFAULT, 16) Canvas1.MeasureStringHeight("Aj", Typeface.DEF
link: Just to round out the thread, below is the final code. It adjusts text size with out java. I found that using stringutils gave me a smaller than requ

2dip) Private cvs As Canvas cvs.Initialize2(bmp) Return cvs.MeasureStringHeight(Text, Font1.ToNativeFont, Font1.Size) #Else If B4i Return Text.MeasureHeight(Font1.ToNativeFont) #Else If B4J Dim jo As JavaObject jo.InitializeNewInstance("javafx.scene.text.Text", Array(Text))
link: No, ya calculo el tamaño del texto así Dim TamanoAncho As Int = MeasureTextWidth("W",FuenteEstilo) Dim TamanoAlto As Int = MeasureTextHeight

Hi @klaus there are no layout parameters. The point I was trying to make was that I was creating the views in code not the designer (see post #1). If the view is wider than it is tall then all works correctly using Canvas.MeasureStringWidth but if the view is taller than it is wide then the text is
link: I've placed several more log statements in the code and I believe that this line is the root cause of my problem... c.MeasureStringHeight(str, Typefac
link: I've thrown together a small sample (attached), and the code I'm using is shown below. Private Sub maxTextSize(v As View, str As String) As Float
link: Try changing the starting value from 70 to a value closer to what you expect to need, then it won't loop as many times to find the largest text size.

Now seeing the code I found the problem. In the Ideal_Text_Size method a Canvas is assigned to the Button, and this new assignment overrides the StateListDrawable definition. If you modify the Ideal_Text_Size method like below, commenting all lines concerned by the Canvas the Buttons behave as expec

Canvas.MeasureStringHeight("M", Typeface.DEFAULT_BOLD, PD.LegendTextSize) For i = 0 To PD.Items.Size - 1 Dim it As PieItem it = PD.Items.Get(i) textWidth = Max(textWidth, PD.Canvas.MeasureStringWidth(it.Name, Typeface.DEFAULT_BOLD, PD.LegendTextSize)) Next bmp.Ini

why are you using MeasureStringHeight if you want to set label based on its length? try changing your code to this itmheight = Canvas1.MeasureStringWidth(msggtext, Typeface.DEFAULT, globalfontsize)
link: i have tried the following globalfontsize = "12" itmheight = Canvas1.MeasureStringHeight(msggtext, Typeface.DEFAULT, globalfontsize) Label1.TextSize

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