Android Question [SOLVED]StateManager Example

[Jorge M A]

Hi. I'm studying the "SateManager" module with the original "StateManagerExample" code.
All libraries are referenced. When I test the application and rotate the device, I receive the error:

Error occurred on line: 170 (StateManager)
java.lang.NumberFormatException: Invalid double: "true"
at java.lang.StringToReal.invalidReal(StringToReal.java:63)
at java.lang.StringToReal.initialParse(StringToReal.java:94)
...

It seems to me that the value of SeekBar is not being saved. The module version is 1.20.
My questions are
a) am I testing it properly?
b) Is there any update after 1.2?
c) how can it be solved ?, to integrate it with confidence in my project.
Thank you.

 

[Jorge M A]

I applied @Erel's tip described here. All is working now! Thanks!