Simple xml SAX parser error while retrieve from HTTP

Simple xml SAX parser error while retrieve from HTTP - android

Actually i try to do parse simple XML containing some details using SAX parser and display the result in Spinner. But i con't identify the what is the problem in my problem i mean may be it will be syntax error or my program was not correct. can anyone help me to fix this issues.
activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="#dimen/activity_vertical_margin"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<Spinner
android:id="#+id/spinner1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginTop="178dp" />
<Button
android:id="#+id/button1"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/spinner1"
android:layout_alignParentTop="true"
android:layout_alignRight="#+id/spinner1"
android:layout_marginTop="17dp"
android:text="Parse XML using SAX" />
</RelativeLayout>
list_item.xml
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/title"
style="#style/spinner" />
styles.xml
<resources xmlns:android="http://schemas.android.com/apk/res/android">
<style name="AppTheme" parent="#android:style/android:Theme" />
<style name="spinner">
<item name="android:layout_width">fill_parent</item>
<item name="android:layout_height">fill_parent</item>
<item name="android:textColor">#0000CD</item>
<item name="android:text">15dp</item>
<item name="android:typeface">monospace</item>
<item name="android:maxHeight">35dp</item>
<item name="android:paddingTop">5dp</item>
<item name="android:paddingBottom">8dp</item>
</style>
</resources>
Mainactivity.class
public abstract class MainActivity extends Activity implements OnClickListener,OnItemSelectedListener {
Button button;
Spinner spinner;
List<Item> item = null;
static final String URL = "http://www.androidituts.com/source/tutorials.xml";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
findViewById();
button.setOnClickListener(this);
}
private void findViewById() {
// TODO Auto-generated method stub
button = (Button) findViewById(R.id.button1);
spinner = (Spinner) findViewById(R.id.spinner1);
}
public void onClick(View v) {
item = SAXXMLParser.parse(URL);
ArrayAdapter<Item> adapter = new ArrayAdapter<Item>(this,
R.layout.list_item, item);
spinner.setAdapter(adapter);
spinner.setOnItemSelectedListener(this);
}
#Override
public void onItemSelected(AdapterView<?> parent, View view, int pos,
long id) {
Item item = (Item) parent.getItemAtPosition(pos);
Toast.makeText(parent.getContext(), item.getDetails(),
Toast.LENGTH_LONG).show();
}
#Override
public void onNothingSelected(AdapterView<?> arg0) {
}
}
Item.java
public class Item {
private String name;
private int id;
private String category;
private String published;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public void setcategory(String category) {
this.category = category;
}
public String getcategory() {
return category;
}
public void setpublished(String published) {
this.published = published;
}
public String getpublished() {
return published;
}
public String getDetails() {
// TODO Auto-generated method stub
String result = id + ": " + name + "\n" + category + "-" + published;
return result;
}
}
SAXXMLParser.java
public class SAXXMLParser {
public static List<Item> parse(String URL) {
List<Item> menu=null;
try {
// create a XMLReader from SAXParser
XMLReader xmlReader = SAXParserFactory.newInstance().newSAXParser()
.getXMLReader();
// create a SAXXMLHandler
SAXXMLHandler saxHandler = new SAXXMLHandler();
// store handler in XMLReader
xmlReader.setContentHandler(saxHandler);
// the process starts
xmlReader.parse(URL);
// get the `Employee list`
menu = saxHandler.getmenu();
} catch (Exception ex) {
Log.d("XML", "SAXXMLParser: parse() failed");
}
// return Employee list
return menu;
}
}
SAXXMLHandler.java
public class SAXXMLHandler extends DefaultHandler {
private List<Item> menu;
private String tempVal;
private Item tempEmp;
public SAXXMLHandler() {
menu = new ArrayList<Item>();
}
public List<Item> getmenu() {
return menu;
}
// Event Handlers
public void startElement(String uri, String localName, String qName,
Attributes attributes) throws SAXException {
// reset
tempVal = "";
if (qName.equalsIgnoreCase("item")) {
// create a new instance of employee
tempEmp = new Item();
}
}
public void characters(char[] ch, int start, int length)
throws SAXException {
tempVal = new String(ch, start, length);
}
public void endElement(String uri, String localName, String qName)
throws SAXException {
if (qName.equalsIgnoreCase("item")) {
// add it to the list
menu.add(tempEmp);
} else if (qName.equalsIgnoreCase("id")) {
tempEmp.setId(Integer.parseInt(tempVal));
} else if (qName.equalsIgnoreCase("name")) {
tempEmp.setName(tempVal);
} else if (qName.equalsIgnoreCase("category")) {
tempEmp.setcategory(tempVal);
} else if (qName.equalsIgnoreCase("published")) {
tempEmp.setpublished(tempVal);
}
}
}
Android manifesto.
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.xmlspinner"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="8"
android:targetSdkVersion="8" />
<uses-permission android:name="android.permission.INTERNET"/>
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.example.xmlspinner.MainActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
logcat detail
http://i.stack.imgur.com/BpNKV.jpg

I have done changes in codes try below codes...
import java.net.URL;
import java.util.ArrayList;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.app.Activity;
import android.os.Build;
import android.os.Bundle;
import android.os.StrictMode;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.Spinner;
import android.widget.Toast;
#TargetApi(Build.VERSION_CODES.GINGERBREAD)
#SuppressLint("NewApi")
public class XMLParsingDOMExample extends Activity implements AdapterView.OnItemSelectedListener {
ArrayList<String> title;
Button button;
Spinner spinner;
ArrayAdapter<String> from_adapter;
#TargetApi(Build.VERSION_CODES.GINGERBREAD)
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
title = new ArrayList<String>();
button = (Button) findViewById(R.id.button1);
spinner = (Spinner) findViewById(R.id.spinner1);
spinner.setOnItemSelectedListener(this);
if (android.os.Build.VERSION.SDK_INT > 9) {
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);
}
button.setOnClickListener(new OnClickListener()
{
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
parse();
from_adapter=new ArrayAdapter<String>(getBaseContext(),android.R.layout.simple_spinner_item, title);
from_adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinner.setAdapter(from_adapter);
}
});
}
public void onItemSelected(AdapterView<?> parent, View view, int pos,
long id) {
Toast.makeText(parent.getContext(), ""+spinner.getSelectedItem().toString().trim(),
Toast.LENGTH_LONG).show();
}
public void onNothingSelected(AdapterView<?> arg0) {
}
protected void parse() {
// TODO Auto-generated method stub
try {
URL url = new URL(
"http://www.androidituts.com/source/tutorials.xml");
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document doc = db.parse(new InputSource(url.openStream()));
doc.getDocumentElement().normalize();
NodeList nodeList = doc.getElementsByTagName("item");
for (int i = 0; i < nodeList.getLength(); i++) {
Node node = nodeList.item(i);
Element fstElmnt = (Element) node;
NodeList nameList = fstElmnt.getElementsByTagName("id");
Element nameElement = (Element) nameList.item(0);
nameList = nameElement.getChildNodes();
NodeList websiteList = fstElmnt.getElementsByTagName("name");
Element websiteElement = (Element) websiteList.item(0);
websiteList = websiteElement.getChildNodes();
NodeList websiteList1 = fstElmnt.getElementsByTagName("category");
Element websiteElement1 = (Element) websiteList1.item(0);
websiteList1 = websiteElement1.getChildNodes();
NodeList websiteList2 = fstElmnt.getElementsByTagName("published");
Element websiteElement2 = (Element) websiteList2.item(0);
websiteList2 = websiteElement2.getChildNodes();
title.add(((Node) nameList.item(0)).getNodeValue()+":"+((Node) websiteList.item(0)).getNodeValue() +"\n"+((Node) websiteList1.item(0)).getNodeValue()+"-"+((Node) websiteList2.item(0)).getNodeValue());
}
} catch (Exception e) {
System.out.println("XML Pasing Excpetion = " + e);
}
}
}
Now you can get all the details in that spinner...

You can't Performing Network Operations ON GUI thread so you have to create a thread to fitch and parse data from URL.
public void onClick(View v) {
new Thread(new Runnable() {
#Override
public void run() {
item = SAXXMLParser.parse(URL);
spinhandler.sendEmptyMessage(0);
}
}).start();
}
Create Handler
private Handler spinhandler = new Handler() {
#Override
public void handleMessage(Message msg) {
if(msg.what == 0) {
ArrayAdapter<Item> adapter = new ArrayAdapter<Item>(MainActivity.this, R.layout.list_item, item);
spinner.setAdapter(adapter);
spinner.setOnItemSelectedListener(MainActivity.this);
}
}
};
When try to put data in Item Object the Item object equal null so you have to intialize the object before start access it
if (qName.equalsIgnoreCase("id")) {
tempEmp = new Item();
tempEmp.setId(Integer.parseInt(tempVal));
}

Related

To Implement these ListActivity to display videos in url

I need to implement these ListActivity.java
ListActivity.java:
package com.sit.fth.activity;
public class ListActivity extends Activity {
private ListView lv;
private String[] groupArray = {"Category1", "Category2", "Category3"};
private String[][] childArray = {{"Test Greater glory Part-3","Greater glory Part-1"},
{"What does","SundayService ( 19_01_14 )"}, {"Greater glory Part-3", "SundayService ( 19_01_14 )Tamil"}};
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.list1);
lv = (ListView) findViewById(R.id.listview);
String[] data = getIntent().getStringArrayExtra("strArray");
AdapterView.OnItemClickListener clickListener = null;
// If no data received means this is the first activity
if (data == null) {
data = groupArray;
clickListener = new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
Intent intent = new Intent(ListActivity.this, ListActivity.class);
intent.putExtra("strArray", childArray[position]);
startActivity(intent);
}
};
}
ArrayAdapter adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, data);
lv.setAdapter(adapter);
lv.setTextFilterEnabled(true);
lv.setOnItemClickListener(clickListener);
}
}
list1.java:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/LinearLayout01"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<ListView
android:id="#+id/listview"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
If I click the Category1 in that ListView.Another ListView shown.
My problem is,If I click the TestGreater Glory Part-3, the video have to display from URL.I doesn't know how to implement that ListActivity Class to the below codings.
strings.xml:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="str_video">VIDEO</string>
<string name="api_host">URL Here</string>
</resources>
YouTubePlayActivity.java:
package com.sit.fth.activity;
public class YoutubePlayActivity extends YouTubeFailureRecoveryActivity {
public static final String DEVELOPER_KEY = "DEVELOPER_KEY_HERE";
private String videoId;
private YouTubePlayerView youTubeView;
private ActionBar actionabar;
private int position;
#Override
protected void onCreate(Bundle arg0) {
super.onCreate(arg0);
setContentView(R.layout.youtube_play);
position = getIntent().getExtras().getInt("position");
Bundle bundle = getIntent().getExtras();
videoId = bundle.getString("videoid");
FrameLayout frameLayout = (FrameLayout) findViewById(R.id.youtube_view);
youTubeView = new YouTubePlayerView(this);
frameLayout.addView(youTubeView);
youTubeView.initialize(DEVELOPER_KEY, this);
((TextView) findViewById(R.id.header_title)).setText(bundle
.getString("title"));
actionabar = getActionBar();
//actionabar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
actionabar.setDisplayHomeAsUpEnabled(true);
}
#Override
public void onInitializationSuccess(YouTubePlayer.Provider provider,
YouTubePlayer player, boolean wasRestored) {
if (!wasRestored) {
try {
if (videoId != null) {
// 2GPfZYwYZoQ
player.cueVideo(videoId);
} else {
Toast.makeText(getApplicationContext(),
"Not a Valid Youtube Video", Toast.LENGTH_SHORT)
.show();
}
} catch (Exception e) {
Toast.makeText(getApplicationContext(),
"Not a Valid Youtube Video", Toast.LENGTH_SHORT).show();
}
}
}
#Override
protected YouTubePlayer.Provider getYouTubePlayerProvider() {
return youTubeView;
}
}
I need to implement that ListActivity.java Class to get the videos shown in the url.

Here's an app that lists categories (that you provide). After clicking some category, it's videos will be loaded from the JSON file and displayed as another ListView.
When you click on a video, it's url and title is sent to the YoutubeActivity. YoutubeActivity then starts a player with that video.
I believe you wanted something more complex but you can add the other functionality (such as getting additional fields from the json) quite easily. If you would want to import categories also, then you'd need another json structure such as array of categories->array of videos.
ListActivity:
package com.example.youtubecatplayer;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.app.Activity;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
import java.util.List;
/**
* Created by Simon on 2014 Jul 08.
*/
public class ListActivity extends Activity {
// Categories must be pre-set
private String[] data = {"Category1", "Category2", "Category3"};
private final String JSONUrl = "http://tfhapp.fathershouse.in/api/video.php";
private final String TAG_VIDEOS = "videos";
private final String TAG_CAT = "video_category";
private final String TAG_URL = "video_url";
private final String TAG_TITLE = "video_title";
private List<String> videoTitles = new ArrayList<String>();
private List<String> videoURLs = new ArrayList<String>();
private ArrayAdapter adapter;
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.list1);
ListView listView = (ListView) findViewById(R.id.listview);
Bundle extras = getIntent().getExtras();
AdapterView.OnItemClickListener clickListener = null;
// Category view:
if (extras == null) {
clickListener = new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
Intent intent = new Intent(ListActivity.this, ListActivity.class);
intent.putExtra("categoryName", data[position]);
startActivity(intent);
}
};
adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, data);
}
else { // Child view
// Get the category of this child
String categoryName = extras.getString("categoryName");
if (categoryName == null)
finish();
// Populate list with videos of "categoryName", by looping JSON data
new JSONParse(categoryName).execute();
clickListener = new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
Intent intent = new Intent(ListActivity.this, YoutubeActivity.class);
// Send video url and title to YoutubeActivity
intent.putExtra("videoUrl", videoURLs.get(position));
intent.putExtra("videoTitle", videoTitles.get(position));
startActivity(intent);
}
};
adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, videoTitles);
}
listView.setAdapter(adapter);
listView.setTextFilterEnabled(true);
listView.setOnItemClickListener(clickListener);
}
private class JSONParse extends AsyncTask<String, String, JSONObject> {
private ProgressDialog pDialog;
private String categoryName;
// Constructor // Get the categoryName of which videos will be found
public JSONParse(String category) {
this.categoryName = category;
}
#Override
protected void onPreExecute() {
super.onPreExecute();
// Create a loading dialog when getting the videos
pDialog = new ProgressDialog(ListActivity.this);
pDialog.setMessage("Getting Videos...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
}
#Override
protected JSONObject doInBackground(String... args) {
JSONParser jParser = new JSONParser();
// Get JSON from URL
JSONObject json = jParser.getJSONFromUrl(JSONUrl);
if (json == null)
return null;
try {
// Get video array
JSONArray videos = json.getJSONArray(TAG_VIDEOS);
// Loop all videos
for (int i=0; i<videos.length(); i++) {
JSONObject video = videos.getJSONObject(i);
Log.e("JSON:", "cat: "+video.getString(TAG_CAT)+",title: "+video.getString(TAG_TITLE)+", url: "+video.getString(TAG_URL));
// Check if video belongs to "categoryName"
if (video.getString(TAG_CAT).equals(categoryName)) {
addVideo(video);
}
}
} catch (JSONException e) {
e.printStackTrace();
}
return json;
}
private void addVideo(JSONObject video) {
try {
// Add title and URL to their respective arrays
videoTitles.add(video.getString(TAG_TITLE));
videoURLs.add(video.getString(TAG_URL));
} catch (JSONException e) {
e.printStackTrace();
}
}
#Override
protected void onPostExecute(JSONObject json) {
// Close the "loading" dialog
pDialog.dismiss();
if (json == null) {
// Do something when there's no internet connection
// Or there are no videos to be displayed
}
else // Let the adapter notify ListView that it has new items
adapter.notifyDataSetChanged();
}
}
}
// Example JSON video item
// {"videoid":"59","video_type":"Youtube","language":"english","date":"08 Jul 2014",
// "video_title":"What does","video_category":"Category2","video_url":"P84FGn49b4A"},
YoutubeActivity:
package com.example.youtubecatplayer;
import android.app.ActionBar;
import android.os.Bundle;
import android.widget.Toast;
import com.google.android.youtube.player.YouTubeBaseActivity;
import com.google.android.youtube.player.YouTubeInitializationResult;
import com.google.android.youtube.player.YouTubePlayer;
import com.google.android.youtube.player.YouTubePlayerView;
/**
* Created by Simon on 2014 Jul 08.
*/
public class YoutubeActivity extends YouTubeBaseActivity implements YouTubePlayer.OnInitializedListener{
public static final String DEVELOPER_KEY = "DEV_KEY";
private String videoId;
private ActionBar actionabar;
#Override
protected void onCreate(Bundle arg0) {
super.onCreate(arg0);
setContentView(R.layout.youtube_activity);
Bundle bundle = getIntent().getExtras();
videoId = bundle.getString("videoUrl");
this.setTitle(bundle.getString("videoTitle"));
//((TextView) findViewById(R.id.videoTitle)).setText(bundle.getString("videoTitle"));
YouTubePlayerView playerView = (YouTubePlayerView)findViewById(R.id.youtubeplayerview);
playerView.initialize(DEVELOPER_KEY, this);
actionabar = getActionBar();
//actionabar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
actionabar.setDisplayHomeAsUpEnabled(true);
}
#Override
public void onInitializationSuccess(YouTubePlayer.Provider provider, YouTubePlayer player,
boolean wasRestored) {
if (!wasRestored) {
try {
if (videoId != null) {
// 2GPfZYwYZoQ
player.cueVideo(videoId);
} else {
Toast.makeText(getApplicationContext(),
"Not a Valid Youtube Video", Toast.LENGTH_SHORT)
.show();
}
} catch (Exception e) {
Toast.makeText(getApplicationContext(),
"Not a Valid Youtube Video", Toast.LENGTH_SHORT).show();
}
}
}
#Override
public void onInitializationFailure(YouTubePlayer.Provider provider,
YouTubeInitializationResult youTubeInitializationResult) {
}
}
JSONParser:
package com.example.youtubecatplayer;
/**
* Created by Simon on 2014 Jul 08.
*/
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.nio.charset.Charset;
import org.json.JSONException;
import org.json.JSONObject;
import android.util.Log;
public class JSONParser {
public JSONParser() {
}
public JSONObject getJSONFromUrl(String url) {
InputStream input = null;
String jsonStr = null;
JSONObject jsonObj = null;
try {
// Make the request
input = new URL(url).openStream();
} catch (IOException e) {
e.printStackTrace();
}
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(input,
Charset.forName("UTF-8")));
StringBuilder strBuilder = new StringBuilder();
int ch;
while ((ch = reader.read()) != -1)
strBuilder.append((char) ch);
input.close();
jsonStr = strBuilder.toString();
} catch (Exception e) {
Log.e("Buffer Error", "Error converting result " + e.toString());
}
// try parse the string to a JSON object
try {
jsonObj = new JSONObject(jsonStr);
} catch (JSONException e) {
Log.e("JSON Parser", "Error parsing data " + e.toString());
}
// return JSON String
return jsonObj;
}
}
NOTE: you need internet permission in your AndroidManifest.xml:
<uses-permission android:name="android.permission.INTERNET" />
And you need to implement the YoutubeAPI into your project.
Download YouTube API
build.gradle compile files('libs/YouTubeAndroidPlayerApi.jar')
EDIT:
I just tried to re-create this project and it worked perfectly. Here's my layout and manifest files, maybe they're causing you trouble.
Android Manifest:
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.simas.myapplication" >
<uses-permission android:name="android.permission.INTERNET" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name=".ListActivity"
android:label="#string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".YoutubeActivity"
android:label="#string/app_name" >
</activity>
</application>
</manifest>
youtube_activity.xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.google.android.youtube.player.YouTubePlayerView
android:id="#+id/youtubeplayerview"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
list1.xml:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin"
tools:context=".ListActivity">
<ListView
android:id="#+id/listview"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</RelativeLayout>
Don't forget to change the developer key, or you will see a player initialization problem.

Android RSS Reader (Ninja Error)

I followed a simple tutorial (http://www.cse.nd.edu/courses/cse40814/www/RSS_Android.pdf) to read RSS feed from a given URL into a listView. I have added the INTERNET permission and the code is error free in Eclipse but it will not show any RSS feed when launched on a device or emulator. I can't make the code anymore simpler, and the feed I am using is stable feed from www.nba.com : http://www.nba.com/rss/nba_rss.xml though i have tested it on several RSS feeds and with still no feed showing.
Any ideas guys?
Main.java
package com.android.simplerssreader;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import com.android.simplerssreader.data.RssItem;
import com.android.simplerssreader.util.RssReader;
public class Main extends Activity {
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
try {
RssReader rssReader = new RssReader(
"http://www.nba.com/rss/nba_rss.xml");
ListView Items = (ListView) findViewById(R.id.listView1);
ArrayAdapter<RssItem> adapter = new ArrayAdapter<RssItem>(this,
android.R.layout.simple_list_item_1, rssReader.getItems());
Items.setAdapter(adapter);
Items.setOnItemClickListener(new ListListener(rssReader.getItems(),
this));
} catch (Exception e) {
Log.e("SimpleRssReader", e.getMessage());
}
}
}
ListListener.java
package com.android.simplerssreader;
import java.util.List;
import com.android.simplerssreader.data.RssItem;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
public class ListListener implements OnItemClickListener {
List<RssItem> listItems;
Activity activity;
public ListListener(List<RssItem> listItems, Activity activity) {
this.listItems = listItems;
this.activity = activity;
}
public void onItemClick(AdapterView<?> parent, View view, int pos, long id) {
Intent i = new Intent(Intent.ACTION_VIEW);
i.setData(Uri.parse(listItems.get(pos).getLink()));
activity.startActivity(i);
}
}
RssItem.java
package com.android.simplerssreader.data;
public class RssItem {
private String title;
private String link;
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getLink() {
return link;
}
public void setLink(String link) {
this.link = link;
}
}
RssParseHandler.java
package com.android.simplerssreader.util;
import java.util.ArrayList;
import java.util.List;
import org.xml.sax.Attributes;
import org.xml.sax.SAXException;
import org.xml.sax.helpers.DefaultHandler;
import com.android.simplerssreader.data.RssItem;
public class RssParseHandler extends DefaultHandler {
private List<RssItem> rssItems;
private RssItem currentItem;
private boolean parsingTitle;
private boolean parsingLink;
public RssParseHandler() {
rssItems = new ArrayList<RssItem>();
}
public List<RssItem> getItems() {
return rssItems;
}
#Override
public void startElement(String uri, String localName, String qName,
Attributes attributes) throws SAXException {
if ("content-item".equals(qName)) {
currentItem = new RssItem();
} else if ("title".equals(qName)) {
parsingTitle = true;
} else if ("url".equals(qName)) {
parsingLink = true;
}
}
#Override
public void endElement(String uri, String localName, String qName)
throws SAXException {
if ("content-item".equals(qName)) {
rssItems.add(currentItem);
currentItem = null;
} else if ("title".equals(qName)) {
parsingTitle = false;
} else if ("url".equals(qName)) {
parsingLink = false;
}
}
#Override
public void characters(char[] ch, int start, int length)
throws SAXException {
if (parsingTitle) {
if (currentItem != null)
currentItem.setTitle(new String(ch, start, length));
} else if (parsingLink) {
if (currentItem != null) {
currentItem.setLink(new String(ch, start, length));
parsingLink = false;
}
}
}
}
RssReader.java
package com.android.simplerssreader.util;
import java.util.List;
import javax.xml.parsers.SAXParser;
import javax.xml.parsers.SAXParserFactory;
import com.android.simplerssreader.data.RssItem;
public class RssReader {
private String rssUrl;
public RssReader(String rssUrl) {
this.rssUrl = rssUrl;
}
public List<RssItem> getItems() throws Exception {
SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser saxParser = factory.newSAXParser();
RssParseHandler handler = new RssParseHandler();
saxParser.parse(rssUrl, handler);
return handler.getItems();
}
}
main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#000000"
android:orientation="vertical" >
<ListView
android:id="#+id/listView1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#000000"
android:cacheColorHint="#FFA500"
android:scrollingCache="false"
android:textColor="#ADD8E6" >
</ListView>
</LinearLayout>
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.android.simplerssreader"
android:versionCode="1"
android:versionName="1.0" >
<uses-permission android:name="android.permission.INTERNET" />
<uses-sdk
android:minSdkVersion="7"
android:targetSdkVersion="16" />
<application
android:allowBackup="true"
android:icon="#drawable/ic_launcher"
android:label="#string/app_name"
android:theme="#style/AppTheme" >
<activity
android:name="com.android.simplerssreader.Main"
android:label="#string/title_activity_main" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
LogCat
01-04 16:22:16.171: E/SimpleRssReader(8685): Couldn't open http://www.nba.com/rss/nba_rss.xml

replace
Log.e("SimpleRssReader", e.getMessage());
with
Log.e("SimpleRssReader", e.getMessage(), e);
you lose the stack trace information.
BTW, your error is that you can't access the network in Android when you are inside the UI Thread (after HoneyComb) : How to fix android.os.NetworkOnMainThreadException?

Android: How to parse RSS Feed for different button for different URL

I am pasring RSS Feed in my app when i parse only one then it run properly but i have 8 different URL address which want to set on buttons and i want to parse RSS Fedd for every button click.I am using SAX Parser. MY code is below
BaseFeedParser.java
package com.example.shareslab;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import com.example.shareslab.Message;
import android.sax.Element;
import android.sax.EndElementListener;
import android.sax.EndTextElementListener;
import android.sax.RootElement;
import android.util.Xml;
public class BaseFeedParser {
static String feedUrlString = "http://www.xxxx.com/rss.xml";
// names of the XML tags
static final String RSS = "rss";
static final String CHANNEL = "channel";
static final String ITEM = "item";
static final String PUB_DATE = "pubDate";
static final String DESCRIPTION = "description";
static final String LINK = "link";
static final String TITLE = "title";
private final URL feedUrl;
protected BaseFeedParser(){
try {
this.feedUrl = new URL(feedUrlString);
} catch (MalformedURLException e) {
throw new RuntimeException(e);
}
}
protected InputStream getInputStream() {
try {
return feedUrl.openConnection().getInputStream();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
public List<Message> parse() {
final Message currentMessage = new Message();
RootElement root = new RootElement(RSS);
final List<Message> messages = new ArrayList<Message>();
Element itemlist = root.getChild(CHANNEL);
Element item = itemlist.getChild(ITEM);
item.setEndElementListener(new EndElementListener(){
#Override
public void end() {
messages.add(currentMessage.copy());
}
});
item.getChild(TITLE).setEndTextElementListener(new EndTextElementListener(){
#Override
public void end(String body) {
currentMessage.setTitle(body);
}
});
item.getChild(LINK).setEndTextElementListener(new EndTextElementListener(){
#Override
public void end(String body) {
currentMessage.setLink(body);
}
});
item.getChild(DESCRIPTION).setEndTextElementListener(new EndTextElementListener(){
#Override
public void end(String body) {
currentMessage.setDescription(body);
}
});
item.getChild(PUB_DATE).setEndTextElementListener(new EndTextElementListener(){
#Override
public void end(String body) {
currentMessage.setDate(body);
}
});
try {
Xml.parse(this.getInputStream(), Xml.Encoding.UTF_8, root.getContentHandler());
} catch (Exception e) {
throw new RuntimeException(e);
}
return messages;
}
}
I have 8 button and 8 URL address of RSS Feed and i want to parse for every it for every button
MessageList.java
package com.example.shareslab;
import java.util.ArrayList;
import java.util.Arrays;
import com.example.shareslab.R;
import android.app.ListActivity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
public class MessageList extends ListActivity implements OnClickListener {
Button home,socialmedia,tech,usworld,business,fashion,people,political;
public static String singleDescription;
public static String title,URLToPost,imageURL;
public static ArrayList<String> galleryImages;
private static class EfficientAdapter extends BaseAdapter
{
private LayoutInflater mInflater;
public EfficientAdapter(Context context)
{
mInflater = LayoutInflater.from(context);
}
#Override
public int getCount() {
System.out.println("description COUNT : "+SplashActivity.description.size());
return SplashActivity.description.size();
}
#Override
public Object getItem(int position) {
return position;
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(final int position, View convertView, ViewGroup parent)
{
ViewHolder holder;
if (convertView == null)
{
convertView = mInflater.inflate(R.layout.inflate_list_item, null);
holder = new ViewHolder();
holder.title = (TextView) convertView.findViewById(R.id.inflate_title);
holder.des = (TextView) convertView.findViewById(R.id.inflate_description);
holder.im= (ImageView) convertView.findViewById(R.id.inflate_image);
convertView.setTag(holder);
}
else
{
holder = (ViewHolder) convertView.getTag();
}
UrlImageViewHelper.setUrlDrawable(holder.im, SplashActivity.imageURLAmit.get(position),null);
holder.title.setText(SplashActivity.titles.get(position));
holder.des.setText(SplashActivity.description.get(position));
return convertView;
}
public static class ViewHolder {
TextView title,des;
ImageView im;
}
} // close class Efficent adapter
#Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.main);
home=(Button)findViewById(R.id.buttonhome);
socialmedia=(Button)findViewById(R.id.buttonsocial);
tech=(Button)findViewById(R.id.buttontech);
usworld=(Button)findViewById(R.id.buttonusworld);
business=(Button)findViewById(R.id.buttonbusiness);
fashion=(Button)findViewById(R.id.buttonfashion);
people=(Button)findViewById(R.id.buttonpeople);
political=(Button)findViewById(R.id.buttonpolitical);
home.setOnClickListener(this);
socialmedia.setOnClickListener(this);
tech.setOnClickListener(this);
usworld.setOnClickListener(this);
business.setOnClickListener(this);
fashion.setOnClickListener(this);
people.setOnClickListener(this);
political.setOnClickListener(this);
ListView listView = getListView();
listView.setTextFilterEnabled(true);
this.setListAdapter(new EfficientAdapter(this));
listView.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// When clicked, show a toast with the TextView text
galleryImages=new ArrayList<String>();
singleDescription=SplashActivity.description.get(position);
title=SplashActivity.titles.get(position);
URLToPost=SplashActivity.link.get(position);
imageURL=SplashActivity.imageURLAmit.get(position);
System.out.println("ON CLICK URL: "+URLToPost);
galleryImages.addAll(Arrays.asList(SplashActivity.arrays[position]));
startActivity(new Intent(MessageList.this,MessageListDetail.class));
}
});
}
#Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
}
}

You could store the URL of each field as the tag of the corresponding button.
// ...
home.setOnClickListener(this);
home.setTag(new URL("http://example.com/feed1.xml"));
socialmedia.setOnClickListener(this);
socialmedia.setTag(new URL("http://example.com/feed2.xml"));
tech.setOnClickListener(this);
tech.setTag(new URL("http://example.com/feed3.xml"));
}
#Override
public void onClick(View v) {
URL feedUrl = (URL) v.getTag();
// Then do your thing
new FeedParser(feedUrl);
}
And make a public constructor for the parser:
public BaseFeedParser(URL feedUrl){
this.feedUrl = feedUrl;
}

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#drawable/background"
android:orientation="vertical" >
<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="20dp"
android:text="SPORTS LIVE"
android:textColor="#000000"
android:textSize="25dp" />
<Button
android:id="#+id/button1"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_gravity="center"
android:layout_marginTop="48dp"
android:background="#drawable/nfl"/>
<Button
android:id="#+id/button2"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/button1"
android:layout_below="#+id/button1"
android:layout_gravity="center"
android:layout_marginTop="50dp"
android:background="#drawable/nba" />
<Button
android:id="#+id/button3"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/button2"
android:layout_below="#+id/button2"
android:layout_gravity="center"
android:layout_marginTop="50dp"
android:background="#drawable/mlb" />
<Button
android:id="#+id/button4"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/button3"
android:layout_below="#+id/button3"
android:layout_gravity="center"
android:layout_marginTop="50dp"
android:background="#drawable/ncaa" />
</LinearLayout>
public class MainActivity extends Activity {
Button NFL,NBA,MLB,NCAA;
Intent i;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
NFL= (Button) findViewById(R.id.button1);
NBA= (Button) findViewById(R.id.button2);
MLB= (Button) findViewById(R.id.button3);
NCAA= (Button) findViewById(R.id.button4);
i= new Intent("idss.sportslive.All");
// NFL
NFL.setOnTouchListener( new OnTouchListener()
{
#Override
public boolean onTouch(View arg0, MotionEvent event) {
// TODO Auto-generated method stub
switch(event.getAction())
{
case MotionEvent.ACTION_DOWN:
NFL.setBackgroundResource(R.drawable.nflhigh);
break;
case MotionEvent.ACTION_UP:
NFL.setBackgroundResource(R.drawable.nfl);
// i= new Intent("idss.sportslive.All");
i.putExtra("url", 0);
startActivity(i);
break;
}
return false;
}
});
// NBA
NBA.setOnTouchListener( new OnTouchListener()
{
#Override
public boolean onTouch(View arg0, MotionEvent event) {
// TODO Auto-generated method stub
switch(event.getAction())
{
case MotionEvent.ACTION_DOWN:
NBA.setBackgroundResource(R.drawable.nbahigh);
break;
case MotionEvent.ACTION_UP:
NBA.setBackgroundResource(R.drawable.nba);
//i= new Intent("idss.sportslive.ALL");
i.putExtra("url", 1);
startActivity(i);
break;
}
return false;
}
});
//MLB
MLB.setOnTouchListener( new OnTouchListener()
{
#Override
public boolean onTouch(View arg0, MotionEvent event) {
// TODO Auto-generated method stub
switch(event.getAction())
{
case MotionEvent.ACTION_DOWN:
MLB.setBackgroundResource(R.drawable.mlbhigh);
break;
case MotionEvent.ACTION_UP:
MLB.setBackgroundResource(R.drawable.mlb);
//i= new Intent("idss.sportslive.ALL");
i.putExtra("url", 2);
startActivity(i);
break;
}
return false;
}
});
//NCAA
NCAA.setOnTouchListener( new OnTouchListener()
{
#Override
public boolean onTouch(View arg0, MotionEvent event) {
// TODO Auto-generated method stub
switch(event.getAction())
{
case MotionEvent.ACTION_DOWN:
NCAA.setBackgroundResource(R.drawable.ncaahigh);
break;
case MotionEvent.ACTION_UP:
NCAA.setBackgroundResource(R.drawable.ncaa);
//i= new Intent("idss.sportslive.ALL");
i.putExtra("url", 3);
startActivity(i);
break;
}
return false;
}
});
}
}
Parser
public class All extends Activity {
List headlines;
List links;
static Context c;
ProgressDialog pd;
List team1l,score1l,team2l,score2l,matchtype;
String url1[]={ "http://www.mpiii.com/scores/nfl.php/",
"http://www.mpiii.com/scores/nba.php/",
"http://www.mpiii.com/scores/mlb.php/",
"http://www.mpiii.com/scores/ncaa.php/"};
;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//setContentView(R.layout.listview_main);
pd= new ProgressDialog(this);
pd.setMessage("Loading....");
headlines = new ArrayList();
links = new ArrayList();
team1l= new ArrayList();
score1l= new ArrayList();
team2l= new ArrayList();
score2l= new ArrayList();
matchtype= new ArrayList();
c= this;
new TheTask().execute();
//System.out.println("URL iSSSSSSSSSSS"+d.get("url"));
}
class TheTask extends AsyncTask<Void, Void, Void>{
Bundle d;
URL url ;
#Override
protected void onPreExecute() {
//Intent intent= new Intent();
d= ((Activity) c).getIntent().getExtras();
pd.show();
}
#Override
protected Void doInBackground(Void... params) {
try {
if(d.get("url").toString().equals("0"))
{
url = new URL(url1[0]);
}
if(d.get("url").toString().equals("1"))
{
url = new URL(url1[1]);
}
if(d.get("url").toString().equals("2"))
{
url = new URL(url1[2]);
}
if(d.get("url").toString().equals("3"))
{
url = new URL(url1[3]);
}
XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
factory.setNamespaceAware(false);
XmlPullParser xpp = factory.newPullParser();
xpp.setInput(url.openConnection().getInputStream(), "UTF_8");
//xpp.setInput(getInputStream(url), "UTF-8");
boolean insideItem = false;
// Returns the type of current event: START_TAG, END_TAG, etc..
int eventType = xpp.getEventType();
while (eventType != XmlPullParser.END_DOCUMENT) {
if (eventType == XmlPullParser.START_TAG) {
if (xpp.getName().equalsIgnoreCase("item")) {
insideItem = true;
} else if (xpp.getName().equalsIgnoreCase("title")) {
if (insideItem)
headlines.add(xpp.nextText()); //extract the headline
} else if (xpp.getName().equalsIgnoreCase("link")) {
if (insideItem)
links.add(xpp.nextText()); //extract the link of article
}
}else if(eventType==XmlPullParser.END_TAG && xpp.getName().equalsIgnoreCase("item")){
insideItem=false;
}
eventType = xpp.next(); //move to next element
}
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (XmlPullParserException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
for(int i=0;i<headlines.size();i++)
{
String s=headlines.get(i).toString();
Pattern pc = Pattern.compile("([a-zA-Z ]+)\\s+(\\d+)\\s+([a-zA-Z ]+)\\s+(\\d+)\\s+\\((\\w+)\\)");
Matcher matcher = pc.matcher(s);
while (matcher.find( ))
{
String team1 = matcher.group(1);
String score1 = matcher.group(2);
String team2 = matcher.group(3);
String score2 = matcher.group(4);
String result = matcher.group(5);
team1l.add(team1);
score1l.add(score1);
team2l.add(team2);
score2l.add(score2);
matchtype.add(result);
System.out.println( team1 + " scored " + score1 + ", " + team2 + " scored " + score2 + ", which was " + result);
}
}
return null;
}
#Override
protected void onPostExecute(Void result) {
setContentView(R.layout.listview_main);
if(CheckNetwork.isInternetAvailable(c))
{
if(team1l.isEmpty())
{
Toast.makeText(c, "No data Available now. Try again Later", 1000).show();
finish();
}
{
ListView lv= (ListView) findViewById(R.id.list1);
lv.setAdapter(new CustomAdapter(getApplicationContext(),team1l,score1l,team2l,score2l,matchtype,links));
//setContentView(R.layout.contentcatalog);
// setUI();
pd.dismiss();
}
}
else
{
Toast.makeText(c, "Check Network Connection!. Try again Later", 1000).show();
finish();
}
}
}
}
I am not sure if its the right approach.. I had a similar requirement to parse rss feed based on button click.Hope this helps

Turn AutoCompleteTextView into a SearchView in ActionBar instead

I have a AutoCompleteTextView which gives user auto-completion search result from Google Places API. Once I was done I discovered SearchView and how it can be placed in the ActionBar. I checked out the SearchView example provided by google and added it to my application as a starting point (it lists the installed applications) but I don´t know how to proceed from here. I want to have the same functionality as AutoCompleteTextView but use the SearchView instead.
Any suggestion?
The whole class is provided below.
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.List;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.app.SearchManager;
import android.app.SearchableInfo;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
import android.preference.PreferenceManager;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.Window;
import android.view.animation.Animation;
import android.view.animation.AnimationUtils;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.SearchView;
import android.widget.TextView;
import android.widget.Toast;
/**
*
* #author
*
*/
public class PlacesListSearchActivity extends Activity implements SearchView.OnQueryTextListener{
private static final String TAG = "PlacesListActivity";
private ResultReceiver mReceiver;
private OnSharedPreferenceChangeListener sharedPreferencesListener;
private SharedPreferences sharedPreferences;
/** Called when the activity is first created. */
public ArrayAdapter<String> adapter;
public AutoCompleteTextView textView;
private SearchView mSearchView;
private TextView mStatusView;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().requestFeature(Window.FEATURE_ACTION_BAR);
setContentView(R.layout.places_search);
mStatusView = (TextView) findViewById(R.id.status_text);
final ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,R.layout.item_list);
textView = (AutoCompleteTextView)findViewById(R.id.autoCompleteTextView1);
adapter.setNotifyOnChange(true);
textView.setHint("type store name");
textView.setAdapter(adapter);
textView.addTextChangedListener(new TextWatcher() {
public void onTextChanged(CharSequence s, int start, int before, int count) {
if (count%3 == 1) {
adapter.clear();
GetPlaces task = new GetPlaces();
//now pass the argument in the textview to the task
task.execute(textView.getText().toString());
}
}
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
// TODO Auto-generated method stub
}
public void afterTextChanged(Editable s) {
}
});
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.searchview_in_menu, menu);
MenuItem searchItem = menu.findItem(R.id.action_search);
mSearchView = (SearchView) searchItem.getActionView();
setupSearchView(searchItem);
return true;
}
private void setupSearchView(MenuItem searchItem) {
if (isAlwaysExpanded()) {
mSearchView.setIconifiedByDefault(false);
} else {
searchItem.setShowAsActionFlags(MenuItem.SHOW_AS_ACTION_IF_ROOM
| MenuItem.SHOW_AS_ACTION_COLLAPSE_ACTION_VIEW);
}
SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
if (searchManager != null) {
List<SearchableInfo> searchables = searchManager.getSearchablesInGlobalSearch();
// Try to use the "applications" global search provider
SearchableInfo info = searchManager.getSearchableInfo(getComponentName());
for (SearchableInfo inf : searchables) {
if (inf.getSuggestAuthority() != null
&& inf.getSuggestAuthority().startsWith("applications")) {
info = inf;
}
}
mSearchView.setSearchableInfo(info);
}
mSearchView.setOnQueryTextListener(this);
}
public boolean onQueryTextChange(String newText) {
mStatusView.setText("Query = " + newText);
return false;
}
public boolean onQueryTextSubmit(String query) {
mStatusView.setText("Query = " + query + " : submitted");
return false;
}
public boolean onClose() {
mStatusView.setText("Closed!");
return false;
}
protected boolean isAlwaysExpanded() {
return false;
}
class GetPlaces extends AsyncTask<String, Void, ArrayList<String>> {
#Override
// three dots is java for an array of strings
protected ArrayList<String> doInBackground(String... args)
{
Log.d("PlacesListActivity", "doInBackground");
ArrayList<String> predictionsArr = new ArrayList<String>();
try
{
URL googlePlaces = new URL(
"https://maps.googleapis.com/maps/api/place/autocomplete/json?input=" +
URLEncoder.encode(args[0], "UTF-8") +
// "&types=geocode&language=en&sensor=true&key=" + SEARCHES FOR GEO CODES
"&types=establishment&language=en&sensor=true&key=" +
getResources().getString(R.string.googleAPIKey));
Log.d("PlacesListActivity", googlePlaces.toString());
URLConnection tc = googlePlaces.openConnection();
BufferedReader in = new BufferedReader(new InputStreamReader(
tc.getInputStream()));
String line;
StringBuffer sb = new StringBuffer();
//take Google's legible JSON and turn it into one big string.
while ((line = in.readLine()) != null) {
sb.append(line);
}
//turn that string into a JSON object
JSONObject predictions = new JSONObject(sb.toString());
//now get the JSON array that's inside that object
JSONArray ja = new JSONArray(predictions.getString("predictions"));
for (int i = 0; i < ja.length(); i++) {
JSONObject jo = (JSONObject) ja.get(i);
//add each entry to our array
predictionsArr.add(jo.getString("description"));
}
} catch (IOException e)
{
Log.e("PlacesListActivity", "GetPlaces : doInBackground", e);
} catch (JSONException e)
{
Log.e("PlacesListActivity", "GetPlaces : doInBackground", e);
}
return predictionsArr;
}
#Override
protected void onPostExecute(ArrayList<String> result){
Log.d("PlacesListActivity", "onPostExecute : " + result.size());
//update the adapter
adapter = new ArrayAdapter<String>(getBaseContext(), R.layout.item_list);
adapter.setNotifyOnChange(true);
//attach the adapter to textview
textView.setAdapter(adapter);
for (String string : result) {
Log.d("PlacesListActivity", "onPostExecute : result = " + string);
adapter.add(string);
adapter.notifyDataSetChanged();
}
Log.d("PlacesListActivity", "onPostExecute : autoCompleteAdapter" + adapter.getCount());
}
}
}
After updating the code suggested by saxman, I can see that the query method in the provider is never called:
My manifest file looks like this:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.rathinavelu.rea"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="7"
android:targetSdkVersion="15" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name" >
<activity
android:name=".MainActivity"
android:label="#string/app_name"
android:screenOrientation="portrait" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity android:name=".PlacesListActivity" >
</activity>
<activity android:name=".PlacesListSearchActivity" >
<action android:name="android.intent.action.SEARCH" />
<meta-data
android:name="android.app.searchable"
android:resource="#xml/searchable" />
</activity>
<activity android:name=".TestMapActivity" >
</activity>
<activity android:name=".SettingsPreferencesActivity" >
</activity>
<activity android:name="com.rathinavelu.util.ConnectionChecker" >
</activity>
<uses-library android:name="com.google.android.maps" />
<service
android:name=".places.PlacesRESTService"
android:enabled="true"
android:exported="false" >
<intent-filter>
<action android:name="android.intent.action.ACTION_SYNC" />
</intent-filter>
</service>
<provider
android:name=".places.PlacesSuggestionProvider"
android:authorities="com.rathinavelu.rea.places.search_suggestion_provider"
android:syncable="false" />
</application>
</manifest>
I use the same authority in the manifest, content provider and manifest file. I see the searchView in the menu and I have not modified the query method so It should just return the one line cursor. but the query method is never called. please help.
Another issue I just spotted is that the searchView does not show the specified search_hint!
Providing more code
*PlacesListSearchActivity.java*
public class PlacesListSearchActivity extends Activity {
private static final String TAG = "PlacesListSearchActivity";
private ResultReceiver mReceiver;
private OnSharedPreferenceChangeListener sharedPreferencesListener;
private SharedPreferences sharedPreferences;
/** Called when the activity is first created. */
public ArrayAdapter<String> adapter;
public AutoCompleteTextView textView;
private SearchView mSearchView;
private TextView mStatusView;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getWindow().requestFeature(Window.FEATURE_ACTION_BAR);
setContentView(R.layout.places_search);
mStatusView = (TextView) findViewById(R.id.status_text);
final ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,R.layout.item_list);
textView = (AutoCompleteTextView)findViewById(R.id.autoCompleteTextView1);
adapter.setNotifyOnChange(true);
textView.setHint("type store name");
textView.setAdapter(adapter);
textView.addTextChangedListener(new TextWatcher() {
public void onTextChanged(CharSequence s, int start, int before, int count) {
if (count%3 == 1) {
adapter.clear();
GetPlaces task = new GetPlaces();
//now pass the argument in the textview to the task
task.execute(textView.getText().toString());
}
}
public void beforeTextChanged(CharSequence s, int start, int count,
int after) {
// TODO Auto-generated method stub
}
public void afterTextChanged(Editable s) {
}
});
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// super.onCreateOptionsMenu(menu);
// Inflate the options menu from XML
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.places_list_search_options_menu, menu);
SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
SearchView searchView = (SearchView) menu.findItem(R.id.menu_search).getActionView();
// Tells your app's SearchView to use this activity's searchable configuration
searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
searchView.setIconifiedByDefault(false); // Do not iconify the widget; expand it by default
// setupSearchView(searchItem);
return true;
}
places_search.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#dddddd">
<AutoCompleteTextView android:id="#+id/autoCompleteTextView1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginTop="10dp" >
<requestFocus></requestFocus>
</AutoCompleteTextView>
<TextView
android:id="#+id/status_text"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"/>
</RelativeLayout>
places_list_search_options_menu.xml
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:id="#+id/menu_search"
android:title="#string/menu_search"
android:icon="#android:drawable/ic_menu_search"
android:showAsAction="collapseActionView|ifRoom"
android:actionViewClass="android.widget.SearchView" />
</menu>
searchable.xml
<?xml version="1.0" encoding="utf-8"?>
<searchable xmlns:android="http://schemas.android.com/apk/res/android"
android:label="#string/app_name"
android:hint="#string/search_hint"
android:searchSuggestAuthority="com.rathinavelu.rea.places.search_suggestion_provider">
</searchable>
PlacesSuggestionProvider.java
public class PlacesSuggestionProvider extends ContentProvider {
private static final String LOG_TAG = "PlacesSuggestionProvider";
public static final String AUTHORITY = "com.rathinavelu.rea.places.search_suggestion_provider";
public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/search");
// UriMatcher constant for search suggestions
private static final int SEARCH_SUGGEST = 1;
private static final UriMatcher uriMatcher;
private static final String[] SEARCH_SUGGEST_COLUMNS = {
BaseColumns._ID,
SearchManager.SUGGEST_COLUMN_TEXT_1,
SearchManager.SUGGEST_COLUMN_TEXT_2,
SearchManager.SUGGEST_COLUMN_INTENT_DATA_ID
};
static {
uriMatcher = new UriMatcher(UriMatcher.NO_MATCH);
uriMatcher.addURI(AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY, SEARCH_SUGGEST);
uriMatcher.addURI(AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY + "/*", SEARCH_SUGGEST);
}
#Override
public int delete(Uri uri, String arg1, String[] arg2) {
throw new UnsupportedOperationException();
}
#Override
public String getType(Uri uri) {
switch (uriMatcher.match(uri)) {
case SEARCH_SUGGEST:
return SearchManager.SUGGEST_MIME_TYPE;
default:
throw new IllegalArgumentException("Unknown URL " + uri);
}
}
#Override
public Uri insert(Uri uri, ContentValues arg1) {
throw new UnsupportedOperationException();
}
#Override
public boolean onCreate() {
return true;
}
#Override
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
String sortOrder) {
Log.d(LOG_TAG, "query = " + uri);
// Use the UriMatcher to see what kind of query we have
switch (uriMatcher.match(uri)) {
case SEARCH_SUGGEST:
Log.d(LOG_TAG, "Search suggestions requested.");
MatrixCursor cursor = new MatrixCursor(SEARCH_SUGGEST_COLUMNS, 1);
cursor.addRow(new String[] {
"1", "Search Result", "Search Result Description", "content_id"
});
return cursor;
default:
throw new IllegalArgumentException("Unknown Uri: " + uri);
}
}
#Override
public int update(Uri uri, ContentValues arg1, String arg2, String[] arg3) {
throw new UnsupportedOperationException();
}
}

To get Places Autocomplete API results in a SearchView, you'll first need a ContentProvider for the API.
import android.app.SearchManager;
import android.content.ContentProvider;
import android.content.ContentValues;
import android.content.UriMatcher;
import android.database.Cursor;
import android.database.MatrixCursor;
import android.net.Uri;
import android.provider.BaseColumns;
import android.util.Log;
public class PlacesSuggestionProvider extends ContentProvider {
private static final String LOG_TAG = "ExampleApp";
public static final String AUTHORITY = "com.example.google.places.search_suggestion_provider";
public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/search");
// UriMatcher constant for search suggestions
private static final int SEARCH_SUGGEST = 1;
private static final UriMatcher uriMatcher;
private static final String[] SEARCH_SUGGEST_COLUMNS = {
BaseColumns._ID,
SearchManager.SUGGEST_COLUMN_TEXT_1,
SearchManager.SUGGEST_COLUMN_TEXT_2,
SearchManager.SUGGEST_COLUMN_INTENT_DATA_ID
};
static {
uriMatcher = new UriMatcher(UriMatcher.NO_MATCH);
uriMatcher.addURI(AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY, SEARCH_SUGGEST);
uriMatcher.addURI(AUTHORITY, SearchManager.SUGGEST_URI_PATH_QUERY + "/*", SEARCH_SUGGEST);
}
#Override
public int delete(Uri uri, String arg1, String[] arg2) {
throw new UnsupportedOperationException();
}
#Override
public String getType(Uri uri) {
switch (uriMatcher.match(uri)) {
case SEARCH_SUGGEST:
return SearchManager.SUGGEST_MIME_TYPE;
default:
throw new IllegalArgumentException("Unknown URL " + uri);
}
}
#Override
public Uri insert(Uri uri, ContentValues arg1) {
throw new UnsupportedOperationException();
}
#Override
public boolean onCreate() {
return true;
}
#Override
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
String sortOrder) {
Log.d(LOG_TAG, "query = " + uri);
// Use the UriMatcher to see what kind of query we have
switch (uriMatcher.match(uri)) {
case SEARCH_SUGGEST:
Log.d(LOG_TAG, "Search suggestions requested.");
MatrixCursor cursor = new MatrixCursor(SEARCH_SUGGEST_COLUMNS, 1);
cursor.addRow(new String[] {
"1", "Search Result", "Search Result Description", "content_id"
});
return cursor;
default:
throw new IllegalArgumentException("Unknown Uri: " + uri);
}
}
#Override
public int update(Uri uri, ContentValues arg1, String arg2, String[] arg3) {
throw new UnsupportedOperationException();
}
}
Then add your Places Autocomplete API client code into the query method on the content provider. You extract the user input as follows:
String query = uri.getLastPathSegment().toLowerCase();
Add the PlacesSuggestionProvider to your AndroidManifest, and make sure your activity has a searchable configuration.
<application
android:icon="#drawable/ic_launcher"
android:label="#string/app_name" >
<activity android:name=".PlacesSearchViewActivity" >
<intent-filter>
<action android:name="android.intent.action.SEARCH" />
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<meta-data
android:name="android.app.searchable"
android:resource="#xml/searchable" />
</activity>
<provider
android:name="com.example.google.places.PlacesSuggestionProvider"
android:authorities="com.example.google.places.search_suggestion_provider"
android:syncable="false" />
</application>
</manifest>
And make sure your searchable configuration (res/xml/searchable.xml) has a search suggest authority.
<?xml version="1.0" encoding="utf-8"?>
<searchable xmlns:android="http://schemas.android.com/apk/res/android"
android:label="#string/app_name"
android:hint="#string/search_hint"
android:searchSuggestAuthority="com.example.google.places.search_suggestion_provider">
</searchable>
The authority should be the same in AndroidManifest.xml, searchable.xml, and your content provider.
Create a options menu for your ActionBar that includes a SearchView (/res/menu/options_menu.xml).
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="#+id/menu_search"
android:title="#string/menu_search"
android:icon="#drawable/ic_menu_search"
android:showAsAction="collapseActionView|ifRoom"
android:actionViewClass="android.widget.SearchView" />
</menu>
Configure your Activity with a SearchView that's associated with your searchable configuration/
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the options menu from XML
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.options_menu, menu);
SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
SearchView searchView = (SearchView) menu.findItem(R.id.menu_search).getActionView();
// Tells your app's SearchView to use this activity's searchable configuration
searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));
searchView.setIconifiedByDefault(false); // Do not iconify the widget; expand it by default
return true;
}
A few key docs are:
Adding Custom Suggestions:
http://developer.android.com/guide/topics/search/adding-custom-suggestions.html
Creating a Content Provider:
http://developer.android.com/guide/topics/providers/content-provider-creating.html
Using a Search Widget:
http://developer.android.com/guide/topics/search/search-dialog.html#UsingSearchWidget

AutoCompleteTextView with google search Api
your xml
<AutoCompleteTextView
android:id="#+id/main_omnibox_input"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:background="#null"
android:hint="Search"
android:focusable="true"
android:focusableInTouchMode="true"
android:selectAllOnFocus="true"
android:singleLine="true"
android:textSize="#dimen/_14sdp" />
your java code
this.inputBox = (AutoCompleteTextView) findViewById(R.id.main_omnibox_input);
inputBox.setAdapter(new SearchAutocompleteAdapter(SearchActivity.this, new SearchAutocompleteAdapter.OnSearchCommitListener() {
#Override
public void onSearchCommit(String text) {
inputBox.setText(text);
inputBox.setSelection(text.length());
}
}));
this.inputBox.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> adapterView, View view, int i, long j) {
String charSequence = ((TextView) view.findViewById(android.R.id.text1)).getText().toString();
inputBox.setText(Html.fromHtml(BrowserUnit.urlWrapper(charSequence)), BufferType.SPANNABLE);
inputBox.setSelection(charSequence.length());
// your code
// updateAlbum(charSequence);
// hideSoftInput(SearchActivity.this.inputBox);
}
});
SearchAutocompleteAdapter
public class SearchAutocompleteAdapter extends BaseAdapter implements Filterable {
interface OnSearchCommitListener {
void onSearchCommit(String text);
}
private final Context mContext;
private final OnSearchCommitListener commitListener;
private List<String> completions = new ArrayList<>();
static final String searchCompleteUrl = "https://www.google.com/complete/search?client=firefox&q=%s";
SearchAutocompleteAdapter(Context context, OnSearchCommitListener commitListener) {
mContext = context;
this.commitListener = commitListener;
}
#Override
public int getCount() {
return completions.size();
}
#Override
public Object getItem(int position) {
return completions.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#SuppressLint("ClickableViewAccessibility")
#Override
#SuppressWarnings("ConstantConditions")
public View getView(final int position, View convertView, ViewGroup parent) {
if (convertView == null) {
LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(android.R.layout.simple_dropdown_item_1line, parent, false);
}
TextView textview = convertView.findViewById(android.R.id.text1);
textview.setText(completions.get(position));
Drawable d = ContextCompat.getDrawable(mContext, R.drawable.icon_goarrowsmall);
final int size = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 32, mContext.getResources().getDisplayMetrics());
d.setBounds(0, 0, size, size);
textview.setCompoundDrawables(null, null, d, null);
textview.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View view, MotionEvent event) {
if (event.getAction() != MotionEvent.ACTION_DOWN) {
return false;
}
TextView t = (TextView) view;
if (event.getX() > t.getWidth() - t.getCompoundPaddingRight()) {
commitListener.onSearchCommit(getItem(position).toString());
return true;
}
return false;
}
});
parent.setOnTouchListener(new View.OnTouchListener() {
#Override
public boolean onTouch(View view, MotionEvent event) {
if (event.getX() > view.getWidth() - size * 2) {
return true;
}
return false;
}
});
return convertView;
}
#Override
public Filter getFilter() {
return new Filter() {
#Override
protected FilterResults performFiltering(CharSequence constraint) {
// Invoked on a worker thread
FilterResults filterResults = new FilterResults();
if (constraint != null) {
List<String> results = getCompletions(constraint.toString());
filterResults.values = results;
filterResults.count = results.size();
}
return filterResults;
}
#Override
#SuppressWarnings("unchecked")
protected void publishResults(CharSequence constraint, FilterResults results) {
if (results != null && results.count > 0) {
completions = (List<String>) results.values;
notifyDataSetChanged();
} else {
notifyDataSetInvalidated();
}
}
};
}
private List<String> getCompletions(String text) {
int total = 0;
byte[] data = new byte[16384];
try {
URL url = new URL(URLUtil.composeSearchUrl(text, searchCompleteUrl, "%s"));
HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
try {
InputStream in = new BufferedInputStream(urlConnection.getInputStream());
while (total <= data.length) {
int count = in.read(data, total, data.length - total);
if (count == -1) {
break;
}
total += count;
}
if (total == data.length) {
// overflow
return new ArrayList<>();
}
} finally {
urlConnection.disconnect();
}
} catch (IOException e) {
return new ArrayList<>();
}
JSONArray jsonArray;
try {
jsonArray = new JSONArray(new String(data, StandardCharsets.UTF_8));
} catch (JSONException e) {
return new ArrayList<>();
}
jsonArray = jsonArray.optJSONArray(1);
if (jsonArray == null) {
return new ArrayList<>();
}
final int MAX_RESULTS = 10;
List<String> result = new ArrayList<>(Math.min(jsonArray.length(), MAX_RESULTS));
for (int i = 0; i < jsonArray.length() && result.size() < MAX_RESULTS; i++) {
String s = jsonArray.optString(i);
if (s != null && !s.isEmpty()) {
result.add(s);
}
}
return result;
}
}

how to use Layout to display the result get from XML

I am A new guy in Android. I try to develop a list that can show the song name and author at the same line. The source data is from a online XML file
The following is the code I try to use in my program.
However, I only be able to display the author name in the list.
I would to ask how I should modify the code so that I can show the song name and author at the same line in the list?
The Format of online XML file I try to read
<recipes>
<song>
<id>1</id>
<title>Sing A Song</title>
<songs_author>ACM</songs_author>
</song>
<song>
<id>2</id>
<title>DO Re Me</title>
<songs_author>BBC/songs_author>
</song>
</recepies>
src/com.mobile/SongsActivity
package com.mobile;
import java.io.IOException;
import java.net.URL;
import java.util.ArrayList;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import org.xmlpull.v1.XmlPullParserFactory;
import android.app.Activity;
import android.content.Intent;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
import android.widget.SimpleAdapter;
public class SongsActivity extends Activity implements OnItemClickListener {
protected static final int DIALOG_KEY = 0;
ListView mListView;
Button mClear;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_INDETERMINATE_PROGRESS);
this.setProgressBarIndeterminateVisibility(false);
setContentView(R.layout.Songs);
mListView = (ListView) findViewById(R.id.listView1);
mListView.setTextFilterEnabled(true);
mListView.setOnItemClickListener(this);
LoadRecipesTask1 mLoadRecipesTask = new LoadRecipesTask1();
mLoadRecipesTask.execute("http://123.com/mobile/Songs_list.php");
mClear = (Button) findViewById(R.id.button3);
mClear.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
mListView.setAdapter(null);
}
});
}
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Datum datum = (Datum) mListView.getItemAtPosition(position);
Uri uri = Uri.parse("http://123.com/mobile/Songs.php?Songsid=" + datum.getId());
Intent intent = new Intent(Intent.ACTION_VIEW, uri);
this.startActivity(intent);
}
public static ArrayList<Datum> parse(String url) throws IOException, XmlPullParserException {
final ArrayList<Datum> results = new ArrayList<Datum>();
URL input = new URL(url);
XmlPullParserFactory factory = XmlPullParserFactory.newInstance();
factory.setNamespaceAware(true);
XmlPullParser xpp = factory.newPullParser();
xpp.setInput(input.openStream(), null);
int eventType = xpp.getEventType();
String currentTag = null;
Integer id = null;
String title = null;
String Songs_author = null;
while (eventType != XmlPullParser.END_DOCUMENT) {
if (eventType == XmlPullParser.START_TAG) {
currentTag = xpp.getName();
} else if (eventType == XmlPullParser.TEXT) {
if ("id".equals(currentTag)) {
id = Integer.valueOf(xpp.getText());
}
if ("title".equals(currentTag)) {
title = xpp.getText();
}
if ("Songs_author".equals(currentTag)) {
Songs_author = xpp.getText();
}
} else if (eventType == XmlPullParser.END_TAG) {
if ("song".equals(xpp.getName())) {
results.add(new Datum(id, title, Songs_author));
}
}
eventType = xpp.next();
}
return results;
}
protected class LoadRecipesTask1 extends AsyncTask<String, Void, ArrayList<Datum>> {
#Override
protected void onPreExecute() {
SongsActivity.this.setProgressBarIndeterminateVisibility(true);
}
#Override
protected ArrayList<Datum> doInBackground(String... urls) {
ArrayList<Datum> datumList = new ArrayList<Datum>();
try {
datumList = parse(urls[0]);
} catch (IOException e) {
e.printStackTrace();
} catch (XmlPullParserException e) {
e.printStackTrace();
}
return datumList;
}
#Override
protected void onPostExecute(ArrayList<Datum> result) {
mListView.setAdapter(new ArrayAdapter<Datum>(SongsActivity.this, R.layout.list_item, result));
//SongsActivity.this.setProgressBarIndeterminateVisibility(false);
}
}
}
src/com.mobile/Datum
package com.mobile;
public class Datum {
int id;
String title;
String songs_author;
public Datum(int id, String title, String songs_author) {
this.id = id;
this.title = title;
this.songs_author= songs_author;
}
public String toString() {
return songs_author;
}
public int getId() {
return id;
}
public String getTitle() {
return title;
}
public String get Songs_author() {
return Songs_author;
}
}
res/layout/songs.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent">
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal" android:layout_width="fill_parent"
android:layout_height="wrap_content">
<Button android:text="Refresh 1" android:id="#+id/button1"
android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="1"></Button>
<Button android:text="Clear" android:id="#+id/button3"
android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="1"></Button>
</LinearLayout>
<ListView android:id="#+id/listView1" android:layout_height="fill_parent"
android:layout_width="fill_parent"></ListView>
</LinearLayout>
res/layout/list_item.xml
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="10dp"
android:textSize="16sp" >
</TextView>

Just make Custom List View using array adapter.
refer this example..
http://www.softwarepassion.com/android-series-custom-listview-items-and-adapters/

The web is full of tutorial and example of ListView using Custom Adapter. You will have to spend some time trying to learn them. No shortcuts. You can one of them here or you can select one of the books from Amazon.

Develop Reference

The Android operating system is a mobile operating system that was developed by Google (GOOGL?) to be primarily used for touchscreen devices, cell phones, and tablets.

Simple xml SAX parser error while retrieve from HTTP - android

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