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POAndroid ListView with Simple Adapter
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  1. POAndroid ListView with Simple Adapter
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    copied!<p>I created <code>ListView</code> activity to list some data retrieved from server. </p> <p>Here is that <strong>ListAtmActivity</strong>.</p> <pre><code>public class ListAtmActivity extends ListActivity{ private static String url ="http://10.0.2.2:8080/hello/AvailabilityResponse"; private static final String ATM_NO = "atmbrno"; private static final String ATM_PLACE = "atmbrname"; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.list_item); String brName=getIntent().getExtras().getString("key"); // Hashmap for ListView ArrayList&lt;HashMap&lt;String, String&gt;&gt; contactList = new ArrayList&lt;HashMap&lt;String, String&gt;&gt;(); // Creating JSON Parser instance JSONParser jParser = new JSONParser(); // getting JSON string from URL JSONArray contacts = jParser.getJSONFromUrl(url,brName); try{ for(int i = 0; i &lt; contacts.length(); i++){ JSONObject json_data = contacts.getJSONObject(i); // Storing each json item in variable String atm_id = json_data.getString(ATM_NO); String atm_name = json_data.getString(ATM_PLACE); HashMap&lt;String, String&gt; map = new HashMap&lt;String, String&gt;(); map.put(ATM_NO, atm_id); map.put(ATM_PLACE, atm_name); contactList.add(map); } } catch(JSONException e) { e.printStackTrace(); } /** * Updating parsed JSON data into ListView * */ ListAdapter adapter = new SimpleAdapter(this, contactList, R.layout.list_main, new String[] { ATM_NO, ATM_PLACE }, new int[] { R.id.name , R.id.email }); setListAdapter(adapter); //setContentView(R.layout.list_main); }} </code></pre> <p>My contact array is like this.</p> <pre><code>{"atmbrname":"ANURADAPURA [ATM 2]","atmbrno":"ATM084"}, {"atmbrname":"MANNAR BRANCH ","atmbrno":"ATM344"} </code></pre> <p>Here my two xml file also.</p> <p><strong>list_item.xml</strong></p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" &gt; &lt;ListView android:id="@android:id/list" android:layout_width="fill_parent" android:layout_height="wrap_content" /&gt; &lt;/LinearLayout&gt; </code></pre> <p><strong>list_main.xml</strong></p> <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt; &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="vertical" &gt; &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="vertical"&gt; &lt;!-- Name Label --&gt; &lt;TextView android:id="@+id/name" android:layout_width="fill_parent" android:layout_height="wrap_content" android:textColor="#43bd00" android:textSize="16sp" android:textStyle="bold" android:paddingTop="6dip" android:paddingBottom="2dip" /&gt; &lt;!-- Description label --&gt; &lt;TextView android:id="@+id/email" android:layout_width="fill_parent" android:layout_height="wrap_content" android:textColor="#acacac" android:paddingBottom="2dip"&gt; &lt;/TextView&gt; &lt;/LinearLayout&gt; </code></pre> <p></p> <p>But I can't get list view. No errors came. I think problem with my xml files. can anyone help me to solve this problem..</p>
 

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