双缓冲中的Java在Android上用帆布和surfaceview [英] Double buffering in Java on Android with canvas and surfaceview
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问题描述
一个人如何去这样做?可能有人给我一个轮廓?
How does one go about doing this? Could somebody give me an outline?
据我在网上找到的,好像在我的run()函数:
From what I've found online, it seems like in my run() function:
- 创建位图
- 创建一个画布,并将其连接到该位图
- lockCanvas()
- 在通话平局(画布),并绘制位图到后台缓冲区(如何?)
- unlockCanvasAndPost()
这是正确的?如果是这样,我能得到一点的说明;做这些步骤的意思,我如何实施呢?我从来没有编为Android之前,所以我是一个真正的小白。而如果它是不正确的,我该怎么办呢?
Is this correct? If so, could I get a bit of an explanation; what do these steps mean and how do I implement them? I've never programmed for Android before so I'm a real noob. And if it isn't correct, how DO I do this?
推荐答案
它已经是双缓冲的,这正是unlockCanvasAndPost()调用一样。没有必要建立一个位图。
It's already double buffered, that's what the unlockCanvasAndPost() call does. There is no need to create a bitmap.
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