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GLES20Canvas.nDrawDisplayList is slow

开发者 https://www.devze.com 2023-03-19 11:00 出处：网络

I have a custom view that I am trying to display, however I am seeing a bunch of jitter on it. Everything scrolls slow and it isn开发者_如何学JAVA\'t as responsive as it should be.

相关专题：android graphics render

I have a custom view that I am trying to display, however I am seeing a bunch of jitter on it. Everything scrolls slow and it isn开发者_如何学JAVA't as responsive as it should be.

I used traceview and saw that

GLES20Canvas.nDrawDisplayList

seems responsible for taking a lot of time to execute.

Any help please?

GLES20Canvas.nDrawDisplayList is expected to have a large portion of the time if you are drawing a lot, especially very big views. If you are seeing this all over your traceview the answer is "DRAW LESS"

In my specific issue I was drawing a large alpha layer over large views. I would recommend reading the Do's and Dont's from Android 3.0 Hardware Acceleration by Romain Guy