Databases
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PO
 

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    <p>instead of giving inputstream directly to the GSON constructor, download the JSON string first from the URL and then pass it to the constructor for parsing as below:</p> <pre><code>String source = read(url); Feed feeds=new Gson().fromJson(source ,Feed.class); ArrayList&lt;FeedResult&gt;feed=new ArrayList&lt;FeedResult&gt;(); feed=feeds.getFeed(); for(FeedResult feedResult:feedResults) System.out.println(feedResult); </code></pre> <p>the read function:</p> <pre><code>public static String read(String url){ System.out.println("Connecting to service URL : "+url); InputStream is = null; String result = ""; // http post try { HttpClient httpclient = new DefaultHttpClient(); HttpPost httppost = new HttpPost(url); HttpResponse response = httpclient.execute(httppost); HttpEntity entity = response.getEntity(); is = entity.getContent(); } catch (Exception e) { e.printStackTrace(); } // convert response to string try { BufferedReader reader = new BufferedReader(new InputStreamReader( is, "iso-8859-1"), 8); StringBuilder sb = new StringBuilder(); String line = null; while ((line = reader.readLine()) != null) { sb.append(line + "\n"); } is.close(); result = sb.toString(); } catch (Exception e) { e.printStackTrace(); } return result; } </code></pre> <p>add toString() function in your FeedResult class, so that it will get printed to console in readable manner:</p> <pre><code>/* (non-Javadoc) * @see java.lang.Object#toString() */ @Override public String toString() { return "FeedResult [id=" + id + ", created_time=" + created_time + ", message=" + message + ", thumbnail=" + thumbnail + ", comment_count=" + comment_count + "]"; } </code></pre>
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    1. POWhy null value returns in json parsing in android?
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    1. USsunil
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    1. COI tried it and get this error --> com.google.gson.JsonParseException: Expecting object found: "<!DOCTYPE"
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    2. CO@S.Kartoğlu this happens because your service returns non-JSON response. so i would suggest you to check whether the service is working properly or not. or may be you pass incorrect parameters to the service
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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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