[英]get data from Json array in Json array Android Java
您好如何从另一个Json数组中的Json数组中获取数据我有直到附件的数据但附件不起作用,所有代码都起作用,直到附件如何从附件中获取数据我需要从中获取“ photo_75”
JSON
"response":{
"count":3,
"items":[
{
"id":3,
"from_id":205110032,
"owner_id":-81865402,
"date":1417672154,
"post_type":"post",
"text":"jjjjASDFGHJKYTRDXCVB",
"attachments":[
{
"type":"photo",
"photo":{
"id":330414711,
"album_id":-7,
"owner_id":205110032,
"photo_75":"http:\/\/cs605116.vk.me\/v605116032\/6325\/3SwTo8j4lJ0.jpg",
"photo_130":"http:\/\/cs605116.vk.me\/v605116032\/6326\/_OZA86FO3Nw.jpg",
"photo_604":"http:\/\/cs605116.vk.me\/v605116032\/6327\/AUtB59708Nw.jpg",
"photo_807":"http:\/\/cs605116.vk.me\/v605116032\/6328\/59oAdfz9jgI.jpg",
"width":538,
"height":807,
"text":"",
"date":1399134687,
"access_key":"7297eb663de2e4e6b2"
}
}
],
"comments":{
"count":0
},
"likes":{
"count":0
},
"reposts":{
"count":0
}
},
Java的
private void parseJsonFeed(JSONObject response) {
try {
JSONObject parent = response.getJSONObject("response");
JSONArray feedArray = parent.getJSONArray("items");
for (int i = 0; i < feedArray.length(); i++) {
JSONObject feedObj = (JSONObject) feedArray.get(i);
FeedItem item = new FeedItem();
item.setId(feedObj.getInt("id"));
item.setName(feedObj.getString("post_type"));
item.setTimeStamp(feedObj.getString("date"));
// Image might be null sometimes
String image = feedObj.isNull("photo") ? null : feedObj
.getString("photo");
item.setImge(image);
item.setStatus(feedObj.getString("text"));
All code work till there how to get data from attachments
***JSONObject response1 = response.getJSONObject("response");
feedArray = parent.getJSONArray("items");***
JSONArray feedArray1 = response1.getJSONArray("attachments");
for (int i1 = 0; i1 < feedArray1.length(); i1++) {
JSONObject feedObj1 = (JSONObject) feedArray1.get(i1);
FeedItem item1 = new FeedItem();
item.setProfilePic(feedObj1.getString("photo_75"));
}
// url might be null sometimes
String feedUrl = feedObj.isNull("url") ? null : feedObj
.getString("url");
item.setUrl(feedUrl);
feedItems.add(item);
}
} catch (JSONException e) {
e.printStackTrace();
}
}
提前致谢
您正在寻找错误对象中的附件。 “附件”是项目的属性。 代替
JSONArray feedArray1 = response1.getJSONArray("attachments");
采用
JSONArray feedArray1 = feedObj.getJSONArray("attachments");
在您的情况下, feedObj包含item对象。
拍照:删除线条:
String image = feedObj.isNull("photo") ? null : feedObj
.getString("photo");
item.setImge(image);
并将其更改为:
for (int i1 = 0; i1 < feedArray1.length(); i1++) {
JSONObject attachment = (JSONObject) feedArray1.get(i1);
JSONObject photo = (JSONObject) attachment.getJSONObject("photo");
item.setImge(photo);
item.setProfilePic(photo.getString("photo_75"));
item.setStatus(photo.getString("text"));
}
您可以尝试GSON,它将直接从json中为您提供一个Java对象,而您无需手动解析它。
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