我不得不采取了以后可以保存在SD卡上的截图。我已经通过在下面给出链接的code消失了。

I had to take a screenshot that can be later saved in SD card. I have gone through the code given at below this link.

通过code 的Andr​​oid抓图

Android take screenshot via code

的问题是，它会在我的SD卡零（0）kb的文件。可能是什么问题？什么是 id.layoutroot ？

problem is that it creates a zero(0) kb file in my Sd card. what could be the problem? and what is id.layoutroot?

推荐答案

layoutroot是最有可能给根布局的ID在

layoutroot is most likely the id given to the root layout as in

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/layoutroot"
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content">
... 
... (other ui items)

尝试用你想捕捉并检查绘图启用缓存视图的ID。

Try to use the id of the view you want to capture and check if the drawing cache is enabled.