viewToBitmap.java

    public Bitmap createBitmapFromView(View v) {
        v.setLayoutParams(new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT,
                RelativeLayout.LayoutParams.WRAP_CONTENT));
        v.measure(View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED),
                View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
        v.layout(0, 0, v.getMeasuredWidth(), v.getMeasuredHeight());
        Bitmap bitmap = Bitmap.createBitmap(v.getMeasuredWidth(),
                v.getMeasuredHeight(),
                Bitmap.Config.ARGB_8888);

        Canvas c = new Canvas(bitmap);
        v.layout(v.getLeft(), v.getTop(), v.getRight(), v.getBottom());
        v.draw(c);
        return bitmap;
    }