I want to make a painter APP with layers like PhotoShop, and I choose Flutter as the language.
The problem is that I don't know how to make the layers with high performance, because I have tried CustomPainter following online tutorials and open source codes, but the speed of painting is slow if I draw many strokes.
After further study, I find that the difference between Flutter and other platforms is that the canvas offered by CustomPainter always needs to be repainted even if I just draw a new stroke.
Please help me.
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Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. – Community Sep 25 '21 at 19:13