Android Question CircularProgressBar align center problem

[Brandsum]

There is a problem in this XUI custom view. When I set HorizontalAnchor and VerticalAnchor to both sides to place it in the center in designer window, I'm getting this error while loading the layout file.

*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
Panel size is unknown. Layout may not be loaded correctly.
Error occurred on line: 39 (CircularProgressBar)
java.lang.IllegalArgumentException: width and height must be > 0
    at android.graphics.Bitmap.createBitmap(Bitmap.java:1033)
    at android.graphics.Bitmap.createBitmap(Bitmap.java:1000)
    at android.graphics.Bitmap.createBitmap(Bitmap.java:950)
    at android.graphics.Bitmap.createBitmap(Bitmap.java:911)
    .....

 

[Erel]

When I set HorizontalAnchor and VerticalAnchor to both sides to place it in the center in designer window

Sounds like you are not using anchors correctly. The result is that the control size is negative.

You should never use anchors set to BOTH on small controls in the center. Watch this video tutorial: https://www.b4x.com/etp.html?vimeography_gallery=1&vimeography_video=254439386

 

[Brandsum]

Sounds like you are not using anchors correctly. The result is that the control size is negative.

You should never use anchors set to BOTH on small controls in the center. Watch this video tutorial: https://www.b4x.com/etp.html?vimeography_gallery=1&vimeography_video=254439386

So, how can I place the circular bar in the center of a panel inside viewpager.
Could you check this dummy project and correct that?

 

[Erel]

Watch this video tutorial: https://www.b4x.com/etp.html?vimeography_gallery=1&vimeography_video=254439386