Android Question Get text height of RichString

[edgeryder1000]

I have a label which displays a RichString using agraham's library. StrUtil.MeasureMultilineTextHeight is not giving the correct height. Is there a solution using reflection or some other method?

 

[thedesolatesoul]

Can you post some code/screenshot? Are you using a different font?
I use RichString + SU to get the correct text height.

 

[edgeryder1000]

        rs.Initialize(File.ReadString(File.DirAssets, CurrentBook & i    & ".txt")) 
        rs = rsf.Format(rs)

        Label1.Text = rs
 
        Panel1.AddView(Text, 20dip, 10dip, 100%x - 40dip, 10000)
        ScrollView1.Panel.Height = SU.MeasureMultilineTextHeight(Text, rs) + 20dip
        Text.RemoveView
        ScrollView1.Panel.AddView(Text, 20dip, 10dip, 100%x - 40dip, Panel1.Panel.Height)

If I remove rs = rsf.Format(rs) then it gives the correct height

 

[Erel]

MeasureMultilineTextHeight treats the text as a standard text without formatting.

You will need to multiply the height with a factor.

 

[edgeryder1000]

Darn. So there is no easy way to do this, even in java?

 

[Erel]

It might be possible to accomplish this with a library. However with reflection it will be too complicated.

 

[edgeryder1000]

Ok, thanks Erel

 

[AscySoft]

It might be possible to accomplish this with a library. However with reflection it will be too complicated.

After so long, is it possible to get a lable heigh who is RichString formatted?

 

[Erel]

Try this inline Java code:

#if JAVA

import android.text.StaticLayout;
import android.text.Layout.Alignment;
import android.widget.TextView;
public int MeasureMultilineTextHeight(TextView Label) {
    StaticLayout sl = new StaticLayout(Label.getText(), Label.getPaint(),
          Label.getLayoutParams().width - Label.getPaddingLeft() - Label.getPaddingRight(),
    Alignment.ALIGN_NORMAL, 1, 0 , true);
    return sl.getLineTop(sl.getLineCount());
    }
#end if

 

[AscySoft]

Try this inline Java code:

#if JAVA

import android.text.StaticLayout;
import android.text.Layout.Alignment;
import android.widget.TextView;
public int MeasureMultilineTextHeight(TextView Label) {
    StaticLayout sl = new StaticLayout(Label.getText(), Label.getPaint(),
          Label.getLayoutParams().width - Label.getPaddingLeft() - Label.getPaddingRight(),
    Alignment.ALIGN_NORMAL, 1, 0 , true);
    return sl.getLineTop(sl.getLineCount());
    }
#end if

Yes, it does seems to propperly work.
I tested it on my 4.2.2 device it does calculate a heigher value than stringutils method.
I further need to test it on 2.3 devices for propper feedback.
May I suggest you one thing?
Why don't you update the stringutils method with above code?
Second: If i place this code inside a module how shoud I make a call from an activity (I don't know if this is possible)?

Forgot: a big thanks 2 you Erel!

 

[Erel]

See the example here about the static code module: https://www.b4x.com/android/forum/threads/inline-java-code.50141/#content

 

[AscySoft]

That simple? In my case i needed to change the

public int MeasureMultilineTextHeight(TextView Label) {

with

 public static int MeasureMultilineTextHeight(TextView Label) {

and then create propper call with array parameter. I'm new to java I know