Android Question How to get the new width of a label...

[LucaMs]

... after you set it to -2 (autoresize width) ?

The view is correctly resized but if you try Log(Label1.Width) you get always -2.

 

[stevel05]

Try this:

Sub Process_Globals
    'These global variables will be declared once when the application starts.
    'These variables can be accessed from all modules.

   
End Sub

Sub Globals
    'These global variables will be redeclared each time the activity is created.
    'These variables can only be accessed from this module.
    Dim L As Label
End Sub

Sub Activity_Create(FirstTime As Boolean)
    'Do not forget to load the layout file created with the visual designer. For example:
   
   
    L.Initialize("L")
   
    Activity.AddView(L,10,10,-2,-2)
   
    L.Text = "Test"
   
    Log(L.Width)

    CallSubDelayed(Me,"Measure")

End Sub


Sub Activity_Resume

End Sub

Sub Activity_Pause (UserClosed As Boolean)

End Sub

Public Sub Measure
    Dim Layout As JavaObject = AsJO(L).RunMethod("getLayout",Null)
    Log(Layout.RunMethod("getWidth",Null))
End Sub

Sub AsJO(JO As JavaObject) As JavaObject
    Return JO
End Sub

 

[LucaMs]

 

[LucaMs]

Unfortunately there is a pretty good problem: if the Activity is not in foreground the app crashes.

P.S. ergo, mi sa che si torna al canvas e si crea una nuova classe (o perlomeno si modifica quella appena creata, ma è poco codice).

Comunque, ogni cosa che vuoi fare, soprattutto se TI CHIAMANO LucaMs, ti fa perdere un'intera giornata, per cui per una buona app servono dai 7 ai 10 anni

(questo chiaramente perché non hai già pronta una funzione / libreria che faccia ciò che serve in questo caso; ma ci sono sempre... CASI . Domani avrò questa libreria ed un nuovo progetto potrà usufruirne per cui lo sviluppo sarà più veloce... ma quante di queste mancanze troviamo ogni giorno? VADO A PESCAAAREEEE - nemmeno questo, non me piace!).

 

[stevel05]

Why would the activity not be in the foreground when you are accessing a view that is on it?

 

[LucaMs]

Why would the activity not be in the foreground when you are accessing a view that is on it?

Well, I discovered the problem casually, running the app (compilation & installation) when the device was in stand-by.

BTW: what is the technical name of the "pre-home screen"? Also in this state, of course, your Activity is in background.

 

[stevel05]

Well, the layout will need to be calculated and drawn before the getLayout call returns meaningful values. You could check if the returned Layout is Null (or similar) and not read the value. Or put it in a try block.

 

[LucaMs]

Well, the layout will need to be calculated and drawn before the getLayout call returns meaningful values. You could check if the returned Layout is Null (or similar) and not read the value. Or put it in a try block.

The problem is ALSO that I'm trying to put your example code in a class (and then in a library) and I set the label width (and text) there, so if...

Well, I will think about this tomorrow, thank you, Steve.

 

[LucaMs]

There is another problem, not related to your great solution, Steve:

It seems to me that if you use a custom font, Width = - 2 does not work

 

[stevel05]

Interesting, do you load and assign the font before you set the labels size?

 

[LucaMs]

Interesting, do you load and assign the font before you set the labels size?

Of course

 

[stevel05]

It appears to work as expected with a truetype font I have. What font are you loading?

 

[LucaMs]

http://fonts.goldenweb.it/pan_file/l/it/d2/d/font2/D3_Biscuitism_Bold.ttf/id/13566/default.html

 

[stevel05]

Seems to work OK on Bluestacks and my Nexus 7 :

Sub Process_Globals
    'These global variables will be declared once when the application starts.
    'These variables can be accessed from all modules.

End Sub

Sub Globals
    'These global variables will be redeclared each time the activity is created.
    'These variables can only be accessed from this module.
    Dim CustomFont As Typeface
    Dim L As Label
End Sub

Sub Activity_Create(FirstTime As Boolean)
    'Do not forget to load the layout file created with the visual designer. For example:
    'Activity.LoadLayout("Layout1")

    CustomFont = Typeface.LoadFromAssets("D3_Biscuitism_Bold.ttf")
    L.Initialize("L")
    L.Color = Colors.Yellow
    Activity.AddView(L,10Dip,10Dip,-2,-2)
    L.Typeface = CustomFont
   
   
   
    L.Text = "Test"
   
   
    CallSubDelayed(Me,"Measure")
End Sub

Public Sub Measure
    Dim Layout As JavaObject = AsJO(L).RunMethod("getLayout",Null)
    Log(Layout.RunMethod("getWidth",Null))
End Sub

Sub AsJO(JO As JavaObject) As JavaObject
    Return JO
End Sub

Sub Activity_Resume

End Sub

Sub Activity_Pause (UserClosed As Boolean)

End Sub

 

[LucaMs]

Seems to work OK on Bluestacks and my Nexus 7 :

Yes, your code works also on my tablet.

This is even more serious: it means something is wrong with my code!

Thank you again for your time, Steve.