在Android中从RelativeLayout创建位图

我有一个RelativeLayout，想从中创建一个位图，并以字节的形式发送到蓝牙打印机。 根据设备分辨率，当我的位图生成更改textviews fontsize时-分辨率越高，fontsize越高。 如何在不考虑设备分辨率的情况下仅生成一个尺寸

我的代码：

layout.setDrawingCacheEnabled(true);
layout.measure(View.MeasureSpec.makeMeasureSpec(580, View.MeasureSpec.EXACTLY), View.MeasureSpec.makeMeasureSpec(layout.getMeasuredHeight(), View.MeasureSpec.UNSPECIFIED));
layout.layout(0, 0, layout.getMeasuredWidth(), layout.getMeasuredHeight());
layout.buildDrawingCache(false);
Bitmap sImagem = Bitmap.createBitmap(layout.getDrawingCache(false));
layout.setDrawingCacheEnabled(false);

580是我的纸张大小，在打印机上也可以

试试这个

      private void takeScreenShot(){
         int totalHeight = mScreenshotLayout.getHeight();
         int totalWidth  = mScreenshotLayout.getWidth();

         Bitmap b = getBitmapFromView(mScreenshotLayout,totalHeight,totalWidth);
         SendingMail(b);

      }

      public Bitmap getBitmapFromView(View view, int totalHeight, int totalWidth) {
      Bitmap returnedBitmap = Bitmap.createBitmap(totalWidth,totalHeight ,Bitmap.Config.ARGB_8888);
      Canvas canvas = new Canvas(returnedBitmap);
      Drawable bgDrawable = view.getBackground();
      if (bgDrawable != null)
        bgDrawable.draw(canvas);
     else
        canvas.drawColor(Color.WHITE);
     view.draw(canvas);
     return returnedBitmap;
}

试试这个

      private void takeScreenShot(){
         int totalHeight = mScreenshotLayout.getHeight();
         int totalWidth  = mScreenshotLayout.getWidth();

         Bitmap b = getBitmapFromView(mScreenshotLayout,totalHeight,totalWidth);
         SendingMail(b);

      }

      public Bitmap getBitmapFromView(View view, int totalHeight, int totalWidth) {
      Bitmap returnedBitmap = Bitmap.createBitmap(totalWidth,totalHeight ,Bitmap.Config.ARGB_8888);
      Canvas canvas = new Canvas(returnedBitmap);
      Drawable bgDrawable = view.getBackground();
      if (bgDrawable != null)
        bgDrawable.draw(canvas);
     else
        canvas.drawColor(Color.WHITE);
     view.draw(canvas);
     return returnedBitmap;
}