如何处理这组Json
============问题描述============
[{"id":2,"grade":"2016级","class:"1班"},{"id":3,"grade":"2016级","class":"2班"}，{"id":,4,"grade":"2016级","class":"3班"}，{"id":5,"grade":"2015级","class":"1班"}]
已经成功解析，但里面的grade键值对很多值是大量重复的。用listview或Expandablelistview 会出项group项重复；本意效果是
但实际效果是
============解决方案1============
可以重新设计json格式为：
[
{
"grade": "2015级",
"classes": [
{"id": 5, "class": "1班"}
]
},
{
"grade": "2016级",
"classes": [
{"id": 2, "class": "1班"},
{"id": 3, "class": "2班"},
{"id": 4, "class": "3班"}
]
}
]
或者把数据对象组织为:
class Class {
int id;
String name;
}
class Grade {
String name;
ArrayList<Class> classes;
}
ArrayList<Grade> grades = new ArrayList<Grade>();
