哪位大神知道用自定义SurfaceView做的画图板，怎样把画下来的转换成图片保存

哪位大神知道用自定义SurfaceView做的画图板，怎样把画下来的转换成图片保存，不用截屏的那种方式

public Bitmap convertViewToBitmap(View view){

// Bitmap bitmap1 = Bitmap.createBitmap()

    Bitmap bitmap = Bitmap.createBitmap((int) (view.getHeight() * 1.43f), view.getHeight(),
            Bitmap.Config.ARGB_8888);

    Log.i("blb", "-------convert view's height, :" + view.getMeasuredHeight() + ", width: " + view.getMeasuredWidth() + ", getHeight:" + view.getHeight());
    //利用bitmap生成画布
    Canvas canvas = new Canvas(bitmap);

// Paint paint = new Paint();
// paint.setColor(Color.BLACK);
// paint.setTextSize(20.0f);
// canvas.drawText("测量时间：", 50, 50, paint);

    //把view中的内容绘制在画布上
    view.draw(canvas);

    return bitmap;
}


    自己改吧，把整个view转化成bitmap再转化成picture就行了。