我正在构建一个Android应用程序并从我的远程API收集数据(使用Volley) 我需要解析响应。我知道如何获得“项目”数组,但我如何获得每个项目的标题(请注意每个项目的项目密钥)。
{
"code": 200,
"total": 4,
"projects": [
{
"project": {
"id": 1,
"title": "A nice long title",
"latitude": 56.0293783,
"longitude": 12.7256732,
"created_at": "2013-10-20T20:57:00+02:00",
"created_at_human": "5 months",
"total_tasks": 7,
"description": "This is a description.",
"address": "simple highway 22",
"zipcode": "25656",
"city": "florida"
}
},
{
"project": {
"id": 2,
"title": "A nice long title",
"latitude": 56.0293783,
"longitude": 12.7256732,
"created_at": "2013-10-20T20:57:00+02:00",
"created_at_human": "5 months",
"total_tasks": 7,
"description": "This is a description.",
"address": "simple highway 22",
"zipcode": "25656",
"city": "florida"
}
}
]
}
这是我现在使用的代码,需要修改:
JSONArray jsonPosts = mData.getJSONArray("projects");
ArrayList<HashMap<String, String>> blogPosts = new ArrayList<HashMap<String, String>>();
for (int i = 0; i < jsonPosts.length(); i++) {
JSONObject post = jsonPosts.getJSONObject(i);
Log.e("OUTPUT", "THE POST: " + post);
}
输出:
E/OUTPUT﹕ THE POST: {"project":{"id":1,"title":"A nice long title","total_tasks":7,"address":"simple highway 22","description":"This is a description.","zipcode":"25656","created_at":"2013-10-20T20:57:00+02:00","longitude":12.7256732,"created_at_human":"5 MåNADER","latitude":56.0293783,"city":"florida"}}
如何访问每个标题?
答案 0 :(得分:1)
这是JSONArray
而不是JSONObject
- 从中JSONObject
,使用
JSONObject jsonObject = jsonArray.getJSONObject(0);
这将从此JSONArray中获取第一个JSONObject。
如果您有多个JSONObjects,请使用:
JSONObject jsonObject;
for(int n = 0; n < jsonArray.length(); n++)
{
jsonObject = jsonArray.getJSONObject(n);
}
获取值:
jsonObject.getString("name");
答案 1 :(得分:1)
每个jSONObject
项都包含一个键和jSONObject
。我认为您需要从Array中的item获取jSONObject然后获取title和city。
我希望它对你有帮助........
JSONArray jsonPosts = mData.getJSONArray("projects");
ArrayList<HashMap<String, String>> blogPosts = new ArrayList<HashMap<String, String>>();
for (int i = 0; i < jsonPosts.length(); i++) {
JSONObject post = jsonPosts.getJSONObject(i);
JSONObject innerjson = post.getJSONObject("project");
String title = innerjson.getString(KEY_TITLE);
title = Html.fromHtml(title).toString();
String city = innerjson.getString(KEY_CITY);
city = Html.fromHtml(city).toString();
HashMap<String, String> blogPost = new HashMap<String, String>();
blogPost.put(KEY_TITLE, title);
blogPost.put(KEY_CITY, city);
blogPosts.add(blogPost);
}
String[] keys = {KEY_TITLE, KEY_CITY};
int[] ids = { R.id.top_label, R.id.bottom_label};
SimpleAdapter adapter = new SimpleAdapter(this, blogPosts, R.layout.list_item, keys, ids);
setListAdapter(adapter);