Scrollview 生成长截图

/*** 截屏scrollview成bitmap* @param scrollView* @return*/public static Bitmap shotScrollView(ScrollView scrollView,String picpath) {int h = 0;Bitmap bitmap = null;for (int i = 0; i < scrollView.getChildCount(); i++) {h += scrollView.getChildAt(i).getHeight();}bitmap = Bitmap.createBitmap(scrollView.getWidth(), h, Bitmap.Config.RGB_565);final Canvas canvas = new Canvas(bitmap);scrollView.draw(canvas);// 测试输出FileOutputStream out = null;try {out = new FileOutputStream(picpath);} catch (FileNotFoundException e) {e.printStackTrace();}try {if (null != out) {bitmap.compress(Bitmap.CompressFormat.PNG, 100, out);out.flush();out.close();}} catch (IOException e) {}return bitmap;}

1.该方法对于普通的scrollview生成bitmap长截图可用，对于recycleview，listview 存在复用的view需要模拟滚动截图

2.关于控件宽高获取，不能再oncreat（）方法直接执行，因为这个时候图形还没有绘制出来，会直接报空。