(Today, we need to implement a two-level tree. Unfortunately, the group of this two-level tree has an ImageView on the first level. I followed the SimpleAdapter's routine to upgrade the image ID and found that life and death are throwing mistakes
ExpandableListDemo\bin\com\iiapk\atomic\Main$1.class
ExpandableListDemo\bin\com\iiapk\atomic\Main$2.class
ExpandableListDemo\bin\com\iiapk\atomic\Main.class
ExpandableListDemo\bin\com\iiapk\atomic\MyExpandableListAdapter$ViewBinder.class
ExpandableListDemo\bin\com\iiapk\atomic\MyExpandableListAdapter.class
ExpandableListDemo\bin\com\iiapk\atomic\R$attr.class
ExpandableListDemo\bin\com\iiapk\atomic\R$drawable.class
ExpandableListDemo\bin\com\iiapk\atomic\R$id.class
ExpandableListDemo\bin\com\iiapk\atomic\R$layout.class
ExpandableListDemo\bin\com\iiapk\atomic\R$string.class
ExpandableListDemo\bin\com\iiapk\atomic\R$style.class
ExpandableListDemo\bin\com\iiapk\atomic\R.class
ExpandableListDemo\bin\classes.dex
ExpandableListDemo\bin\ExpandableListDemo.apk
ExpandableListDemo\bin\resources.ap_
ExpandableListDemo\gen\com\iiapk\atomic\R.java
ExpandableListDemo\res\drawable-hdpi\calendar.png
ExpandableListDemo\res\drawable-hdpi\icon.png
ExpandableListDemo\res\drawable-hdpi\img_ child_ dot.png
ExpandableListDemo\res\drawable-hdpi\img_ group_ arrow.png
ExpandableListDemo\res\drawable-hdpi\Thumbs.db
ExpandableListDemo\res\drawable-ldpi\icon.png
ExpandableListDemo\res\drawable-mdpi\icon.png
ExpandableListDemo\res\layout\child_ row.xml
ExpandableListDemo\res\layout\group_ row.xml
ExpandableListDemo\res\layout\main.xml
ExpandableListDemo\res\values\strings.xml
ExpandableListDemo\res\values\styles.xml
ExpandableListDemo\src\com\iiapk\atomic\Main.java
ExpandableListDemo\src\com\iiapk\atomic\MyExpandableListAdapter.java)