Whenever I tap the search bar in the inventory, it blinks

Dear Mojang, 

                   I have a bug that should be fixed. Whenever I tap a search bar in my inventory, for some reason the screen blinks. I encountered this for the first time. Additionally, when I open and close my status bar, it would do as same. Hopefully you can fix it as soon as possible. Thank you! 

 

P.S. I don't have a blinking screen in my phone. My phone has no problem. 🙂