问题
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'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?
回答1:
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
来源：https://stackoverflow.com/questions/6630672/gles20canvas-ndrawdisplaylist-is-slow