この質問を投稿して多くの調査を行った後。これらの画像のURLを含むjsonデータから画像をリストビューに追加します。次のコードを含めましたが、画像を読み込むために実装するコードが正確にわかりません。
public class MainActivity extends ListActivity {
// url to make request
private static String url = "http://website/?json=get_recent_posts";
// JSON Node names
private static final String TAG_POSTS = "posts";
private static final String TAG_ID = "id";
private static final String TAG_TITLE = "title";
private static final String TAG_DATE = "date";
private static final String TAG_CONTENT = "content";
private static final String TAG_AUTHOR = "author";
private static final String TAG_NAME = "name";
private static final String TAG_IMAGES = "images";
private static final String TAG_THUMBNAIL = "thumbnail";
// contacts JSONArray
JSONArray posts = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Hashmap for ListView
ArrayList<HashMap<String, String>> contactList = new ArrayList<HashMap<String, String>>();
// Creating JSON Parser instance
JSONParser jParser = new JSONParser();
// getting JSON string from URL
JSONObject json = jParser.getJSONFromUrl(url);
try {
// Getting Array of Contacts
posts = json.getJSONArray(TAG_POSTS);
// looping through All Contacts
for(int i = 0; i < posts.length(); i++){
JSONObject c = posts.getJSONObject(i);
// Storing each json item in variable
String id = c.getString(TAG_ID);
String title = c.getString(TAG_TITLE);
String date = c.getString(TAG_DATE);
String content = c.getString(TAG_CONTENT);
// to remove all <P> </p> and <br /> and replace with ""
content = content.replace("<br />", "");
content = content.replace("<p>", "");
content = content.replace("</p>", "");
// Author is agin JSON Object
JSONObject author = c.getJSONObject(TAG_AUTHOR);
String name = author.getString(TAG_NAME);
JSONObject images = c.getJSONObject(TAG_IMAGES);
String thumbnail = images.getString(TAG_THUMBNAIL);
// creating new HashMap
HashMap<String, String> map = new HashMap<String, String>();
// adding each child node to HashMap key => value
map.put(TAG_ID, id);
map.put(TAG_TITLE, title);
map.put( TAG_DATE, date);
map.put( TAG_NAME, name);
map.put( TAG_CONTENT, content);
// adding HashList to ArrayList
contactList.add(map);
}
} catch (JSONException e) {
e.printStackTrace();
}
/**
* Updating parsed JSON data into ListView
* */
ListAdapter adapter = new SimpleAdapter(this, contactList,
R.layout.list_row,
new String[] { TAG_TITLE, TAG_DATE, TAG_NAME, TAG_CONTENT }, new int[] {
R.id.name, R.id.email,R.id.mobile, R.id.content });
setListAdapter(adapter);
// selecting single ListView item
ListView lv = getListView();
// Launching new screen on Selecting Single ListItem
lv.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// getting values from selected ListItem
String title = ((TextView) view.findViewById(R.id.name)).getText().toString();
String date = ((TextView) view.findViewById(R.id.email)).getText().toString();
String name = ((TextView) view.findViewById(R.id.mobile)).getText().toString();
String content = ((TextView) view.findViewById(R.id.content)).getText().toString();
// Starting new intent
Intent in = new Intent(getApplicationContext(), SampleDesp.class);
in.putExtra(TAG_TITLE, title);
in.putExtra(TAG_DATE, date);
in.putExtra(TAG_NAME, name);
in.putExtra(TAG_CONTENT, content);
startActivity(in);
}
});
}
JSONデータ形式
{ "status": "ok","count": 10,"count_total": 429,"pages": 43,"posts": [ { "id": 2512,"title": "Sansui Eq Sound Processor 2 Mic option in a single unit.","content": "<p>Sansui Eq Sound Processor 2 Mic option in a single unit For sale .<br />\nFor more details contact<br />\n9886673699</p>\n", "date": "2012-12-24 09:39:53",
"author": {"name": "sales" }, "attachments": [{ "images": {"thumbnail": {
"url": "http://site/wp-content/uploads/2012/12/372967-50x37.jpg"
} } }}],.......