问题
Is there a detailed explanation of Surface, SurfaceHolder, EGLSurface, SurfaceView, GLSurfaceView, SurfaceTexture, and TextureView? In particular:
- What’s the difference between SurfaceView and TextureView?
- Do I need to use GLSurfaceView to use OpenGL ES?
- How do Surface and EGLSurface interact?
- What does SurfaceTexture do?
- Why does the stuff I draw on a SurfaceView have to go above or below everything else?
- What is SurfaceFlinger?
- How does composition of the status and navigation bars work?
- While we’re at it, what’s the right way to structure a game loop on Android?
回答1:
The answers to these and many other questions can now be found on the Android Open Source Project web site:
Android System-Level Graphics
The document begins with an explanation of the low-level infrastructure, and then explains how the higher-level features are built from them. The goal is not to provide direct answers to common questions, but rather to describe the system at a level of detail that makes the answers apparent without being overwhelming.
The choice of material and level of detail were heavy influenced by Q&A on stackoverflow.
(Technically this is a link-only answer, but writing 10,000 words here seemed like a bad idea.)
来源：https://stackoverflow.com/questions/23414776/how-do-i-use-android-s-surface-classes