问题描述
我发现这段代码会导致surfaceCreated和surfaceDestroyed被多次调用:
i found that this codes will cause surfaceCreated and surfaceDestroyed to be called several times:
mSurfaceView.setVisibility(View.GONE);
mSurfaceView.setVisibility(View.VISIBLE);
谁能告诉我为什么surfaceCreated和surfaceDestroyed不能只被调用一次?
could anybody tell me why surfaceCreated and surfaceDestroyed doesn't to be called only once ?
推荐答案
如果你实现了 SurfaceHolder.Callback 并在 surfaceDestroyed、surfaceCreated 的每一个里面放了一个记录器, surfaceChanged 方法，您将看到这两行将生成以下输出:
If you implement SurfaceHolder.Callback and put a logger inside each of surfaceDestroyed, surfaceCreated, surfaceChanged methods, you will see that those two lines will generate the following output:
04-01 12:50:54.688: INFO/app(4842): SurfaceView destroyed!
04-01 12:50:54.688: INFO/app(4842): SurfaceView created!
04-01 12:50:54.718: INFO/app(4842): SurfaceView changed!
在调用 setVisibility 之前和之后使用两个断点，只需确保不计算其他日志.
Using two breakpoints before and after the calls to setVisibility, just make sure you don't count other logs.
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