Thanks for reminding! I will definitely add that 
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BrightnessTools.Brightness
Could you please give a working example to return the screen brightness to what it was
the block he showed returns the current brightness
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you might want to store the previous brightness in a variable to be able to set it back later
Taifun
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any way , how i can do it ?
how many times to tell see this block
You do not understand what I mean
I want when the user presses the 1 button it increases the brightness level to the maximum
When pressing the button 2, it returns the brightness level to what it was.
it looks like you have overseen this suggestion
Taifun
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It’s really an awesome extension!!
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Thanks @ShinchanNohara
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Nice extension!
There is no sense in setting the second block to set the brightness as the current brightness.
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@Taifun How i store the previous brightness in a variable ?
before adjusting the brightness:
set global previousBrightness to BrightnessTools.Brightness
A very good way to learn App Inventor or Kodular is to read the free Inventor’s Manual here in the AI2 free online eBook App Inventor 2 Book: Create Your Own Android Apps … the links are at the bottom of the Web page. The book ‘teaches’ users how to program with AI2 blocks.
There is a free programming course here Course In A Box and the aia files for the projects in the book are here: App Inventor 2 Book: Create Your Own Android Apps
How to do a lot of basic things with App Inventor are described here: How do you...? .
Also do the tutorials Our Tutorials! to learn the basics of App Inventor, then try something and follow the Top 5 Tips: How to learn App Inventor
Taifun
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I am trying your aia file. The phone does not allow permission to the application. I don’t know the reason
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i guess thats not a problem with aia file
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Thank you for your response. Currently, I am quite busy so I don’t have much time. I will try fixing it within 2 weeks.