将android画布保存为位图

Question

我想将画布对象保存为onDraw（）方法以保存为位图。请不要建议喜欢回答“view.getDrawingCache（真）”。我想直接保存画布位图

Answer 1

// first create a mutable bitmap - you determine the size 
bkg = Bitmap.createBitmap(width, width, Bitmap.Config.ARGB_8888); 

// create a canvas with that empty bitmap 
Canvas c = new Canvas(bkg); 

// do whatever drawing methoods you need....I did a circle 
c.drawColor(mContext.getResources().getColor(R.color.off_white)); 
p.setColor(pixel); 
c.drawCircle(width/2, width/2, width/2, p); 

// then pull off the entire canvas as a bitmapdrawable (or bitmap, if you perfer) 
return new BitmapDrawable(mContext.getResources(), bkg);