turn the view to bitmap

gistfile1.txt

    linear.setDrawingCacheEnabled(true);
    //you could not use this.
    //linear.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED),
    //    MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED));
    //linear.layout(0, 0, linear.getMeasuredWidth(), linear.getMeasuredHeight());
    linear.buildDrawingCache();
    //获取显示的内容当成图片来显示。
    iv.setImageBitmap(linear.getDrawingCache());