Trying out this class:
https://www.b4x.com/android/forum/threads/b4x-xui-b4xprogressbar.90826/
I am using the unaltered class and use it like this from Main:
All is fine up to the ProgressBar1.Progress = i (the progressbar shows in the panel) and then gives me the mentioned error in this code in the class:
The posted example (in the above URL) works fine.
Any idea what could be the problem here?
RBS
https://www.b4x.com/android/forum/threads/b4x-xui-b4xprogressbar.90826/
I am using the unaltered class and use it like this from Main:
B4X:
Sub TestProgressBar
Dim i As Int
pnlFindPat.LoadLayout("progressbar")
ProgressBar1.Initialize("Main", "B4XProgressBar1")
For i = 0 To 100
ProgressBar1.Progress = i
Sleep(100)
Next
End SubAll is fine up to the ProgressBar1.Progress = i (the progressbar shows in the panel) and then gives me the mentioned error in this code in the class:
B4X:
Private Sub DrawValue(Value As Float)
Log("DrawValue, cvs.TargetView.Tag: " & cvs.TargetView.Tag) 'this is fine
Log("DrawValue, cvs.TargetRect.Width: " & cvs.TargetRect.Width) 'this is fine
cvs.ClearRect(cvs.TargetRect) '<<<<<< error here: java.lang.NullPointerException: null receiver
If vertical Then
cvs.DrawLine(cvs.TargetRect.CenterX, 0, cvs.TargetRect.CenterX, cvs.TargetRect.Bottom, bcolor, thickness)
cvs.DrawLine(cvs.TargetRect.CenterX, 0, cvs.TargetRect.CenterX, Value / 100 * cvs.TargetRect.Bottom, pcolor, thickness)
Else
cvs.DrawLine(0, cvs.TargetRect.CenterY, cvs.TargetRect.Right, cvs.TargetRect.CenterY, bcolor, thickness)
cvs.DrawLine(0, cvs.TargetRect.CenterY, Value / 100 * cvs.TargetRect.Right, cvs.TargetRect.CenterY, pcolor, thickness)
End If
cvs.Invalidate
End SubThe posted example (in the above URL) works fine.
Any idea what could be the problem here?
RBS