Android的保存画布屏幕位图 [英] Android save canvas screen as bitmap

问题描述

有没有办法做到这一点？我倒要画布画面保存为位图对象，然后再绘制，到屏幕上。

Is there a way to do it? I d like to save the canvas screen as a Bitmap object, and then draw it again, to the screen.

推荐答案

您可以构建一个帆布传递一个位图上在画布将绘制。见<一href=\"http://developer.android.com/reference/android/graphics/Canvas.html#Canvas(android.graphics.Bitmap\" rel=\"nofollow\">http://developer.android.com/reference/android/graphics/Canvas.html#Canvas(android.graphics.Bitmap)

You can construct a Canvas passing in a Bitmap onto which the canvas will draw. See http://developer.android.com/reference/android/graphics/Canvas.html#Canvas(android.graphics.Bitmap)

您需要构造一个位图适当大小要在其中要绘制的看法。

You need to construct a Bitmap appropriately sized to the view into which you want to draw.

只是猜测这里，但如果你这样做是因为要抽出屏幕，然后绘制位图上一下子还可以看看SurfaceHolder / SurfaceView。

Just guessing here, but if you are doing this because you want to draw off screen then draw the bitmap on all at once you might also look at SurfaceHolder/SurfaceView.

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