Reflector and TypeFace...

[fiaful]

Hi there!

I'm writing a class to write text on canvas using layout ... but when I try to set the Typeface by reflector I get an error:

java.lang.NoSuchMethodException: setTypeface [class java.lang.String]

(of course! This is because setTypeface takes a parameter of type Typeface ... but I give it the Typeface of B4A!)

Public Sub SetTypeface(Font As Typeface)
   Dim R As Reflector
   R.Target = TP ' TP is class private variable of type Object instanced with R.CreateObject("android.text.TextPaint")
   R.RunMethod2("setTypeface", Font, "android.graphics.Typeface")

End Sub

(all other methods I invoke on TP works correctly with int, float and string parameters... but not setTypeface!)

I also tried to take the object inside of the Typeface of B4A ... calling getObject or getObjectOrNull with:

Public Sub SetTypeface(Font As Typeface)
   Dim R As Reflector
   R.Target = Font
   Dim RealTypeface As Object = R.RunMethod("getObject")
   R.Target = TP ' TP is class private variable of type Object instanced with R.CreateObject("android.text.TextPaint")
   R.RunMethod2("setTypeface", RealTypeface, "android.graphics.Typeface")
End Sub

and this is the returned error:

java.lang.NoSuchMethodException: getObject []

so... there is someone who knows how to properly pass the Typeface via reflector?

thanks in advance

 

[Erel]

Why do you need reflection here? Are you using Canvas.DrawText?

 

[fiaful]

Hi Erel... no... I'm not using Canvas.DrawText... I use StaticLayout (draw on canvas) because i need word wrap...

 

[agraham]

Typeface is in fact an android.graphics.Typeface, the problem is with using RunMethod2 which expects String parameters. Try RunMethod4.

Public Sub SetTypeface(Font As Typeface)
    Dim R As Reflector
    'R.Target = TP ' TP is class private variable of type Object instanced with R.CreateObject("android.text.TextPaint")
    R.Target = R.CreateObject("android.text.TextPaint")
    R.RunMethod4("setTypeface", Array As Object(Font), Array As String("android.graphics.Typeface"))
End Sub

 

[fiaful]

with RunMethod4... it works! thank you!