问题
I was looking for a way to split my background in my flutter application using a wave, and I found this piece of code: Design a background from 2 images in flutter
It works perfectly, and I could adapt it to my needs. The only thing I don't understand is that every time I open my keyboard and type something into an input field, the wave is recalculated. I thought if I used a StatelessWidget, that wouldn't happen. Does anyone have an idea how I can fix this problem?
Thank you very much.
来源：https://stackoverflow.com/questions/61551166/how-to-tell-flutter-widget-that-keyboard-doesnt-change-screen-size