如何从JSONArray中删除特定元素?
我正在构建一个应用程序,其中我从服务器请求一个PHP文件。此PHP文件返回一个以JSONObjects为元素的JSONArray,例如,
[ {
"uniqid":"h5Wtd",
"name":"Test_1",
"address":"tst",
"email":"ru_tst@tst.cc",
"mobile":"12345",
"city":"ind"
},
{...},
{...},
...
]
我的代码:
/* jArrayFavFans is the JSONArray i build from string i get from response. its giving me correct JSONArray */
JSONArray jArrayFavFans=new JSONArray(serverRespons);
for (int j = 0; j < jArrayFavFans.length(); j++) {
try {
if (jArrayFavFans.getJSONObject(j).getString("uniqid").equals(id_fav_remov)) {
//jArrayFavFans.getJSONObject(j).remove(j); //$ I try this to remove element at the current index... But remove doesn't work here ???? $
//int index=jArrayFavFans.getInt(j);
Toast.makeText(getParent(), "Object to remove...!" + id_fav_remov, Toast.LENGTH_SHORT).show();
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
如何从此JSONArray删除特定元素?
回答:
试试这个代码
ArrayList<String> list = new ArrayList<String>(); JSONArray jsonArray = (JSONArray)jsonObject;
int len = jsonArray.length();
if (jsonArray != null) {
for (int i=0;i<len;i++){
list.add(jsonArray.get(i).toString());
}
}
//Remove the element from arraylist
list.remove(position);
//Recreate JSON Array
JSONArray jsArray = new JSONArray(list);
使用ArrayList
将添加"\"
到键和值。所以,用JSONArray
自己
JSONArray list = new JSONArray(); JSONArray jsonArray = new JSONArray(jsonstring);
int len = jsonArray.length();
if (jsonArray != null) {
for (int i=0;i<len;i++)
{
//Excluding the item at position
if (i != position)
{
list.put(jsonArray.get(i));
}
}
}
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