Android Question b4xCanvas MeasureText (Multiline)

[fbritop]

Is it posible to calculate the height of a label and text, but with multiple lines? The way that b4i SizeToFit works I think.

Thanks
FBP

 

[roumei]

Have you tried StringUtils.MeasureMultilineTextHeight?
Drawing Multiline Text | B4X Programming Forum

This is my code to fit the textsize of a label:

Private Sub FontToFitMultiLine(lbl As Label, MaxSize As Float)
    lbl.TextSize = MaxSize
    Do While su.MeasureMultilineTextHeight(lbl, lbl.Text) > lbl.Height
        lbl.TextSize = lbl.TextSize * 0.9
    Loop
End Sub

 

[TILogistic]

this is what you want.

 

[Alexander Stolte]

B4X XUI Add MeasureTextWidth and MeasureTextHeight to B4XCanvas

Hi Erel, The title says the wish. Currently, there are three different routines in the class with different results. Example: MeasureTextHeight("Mg") and MeasureTextHeight("M") give different results in B4A because the real height is different, but give the same result in B4J. I have not checked...

www.b4x.com

I use this in my projects.

 

[Erel]

You can also do it with BBCodeView or BBLabel.

 

[klaus]

The link in post #4 is for single line texts not for multiline.

 

[Alexander Stolte]

The link in post #4 is for single line texts not for multiline.

Youre right. I dont tested it on B4J.
B4A:

su.MeasureMultilineTextHeight

B4I:

Text.MeasureHeight(Font1.ToNativeFont)

 

[TILogistic]

this is what you want.

View attachment 107000

Attached a demo. (tested on B4A and B4J)
The rest is up to your imagination.

 

[fbritop]

Have you tried StringUtils.MeasureMultilineTextHeight?
Drawing Multiline Text | B4X Programming Forum

This is my code to fit the textsize of a label:

Private Sub FontToFitMultiLine(lbl As Label, MaxSize As Float)
    lbl.TextSize = MaxSize
    Do While su.MeasureMultilineTextHeight(lbl, lbl.Text) > lbl.Height
        lbl.TextSize = lbl.TextSize * 0.9
    Loop
End Sub

Yes but what I need is to adjust the label size to fit the font, not to change the font to fit the label size... is all the way arround

 

[TILogistic]

SizeToFit routines (MeasureStringWidth, MeasureStringHeight, MeasureMultilineStringHeight)

Routines to adjust a label to fit its text/adjust text size to fit a label: * SizeToFitWidth - given a width (and using the label's font), adjust the label's height * SizeToFitHeight - given a height (and using the label's font), adjust the label's width * SizeFontToFit - given some text for the...

www.b4x.com

[custom view] AutoTextSizeLabel

When you set the text of this custom label the text size is automatically modified to the largest possible size so that all the text is visible. To use this view in your project, you should take the AutoTextSizeLabel class from the attached example and add it to your project. You should then...

www.b4x.com

[B4X] [XUI] AutoTextSizeLabel

It is not recommented to use this class in B4J, the textsize is resetting without reasons... this class is based on the Original Class from @Erel. It works on B4A, B4I and B4J. I tested it with B4A and B4I. Notes: -XUI is needed Change log: - V1.0 Release - V1.1 Add RefreshView Add...

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