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Lars Jansøn Engvik committed
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@@ -0,0 +1,29 @@
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package com.studentersamfundet.app;
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public class DataHandler {
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Event events;
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void insert(String id, String title, String description, String date, String location, String category) {
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int intId = Integer.parseInt(id);
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if (get(intId) != null)
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return;
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Event e = new Event(intId, title, description, date, location, category);
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if (events == null)
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events = e;
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else {
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Event tmp = events;
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while (tmp.next != null)
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tmp = tmp.next;
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tmp.next = e;
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}
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}
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Event get(int id) {
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Event e = events;
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while (e != null && e.id != id)
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e = e.next;
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return e;
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}
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}
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@@ -0,0 +1,103 @@
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package com.studentersamfundet.app;
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import org.w3c.dom.NodeList;
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import android.app.Activity;
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import android.content.Context;
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import android.content.Intent;
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import android.content.SharedPreferences;
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import android.net.ConnectivityManager;
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import android.net.NetworkInfo;
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import android.os.Bundle;
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import android.view.View;
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import android.widget.ImageView;
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import android.widget.Toast;
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public class DnsActivity extends Activity {
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public static final String PREFS_NAME = "DnsPrefs";
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public static final String feedURL = "http://folk.uio.no/larsjeng/test.xml";
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public static final String localURL = "/data/com.studentersamfundet.app/files/dns_events";
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public static FeedFetcher feed = new FeedFetcher();
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public static XmlParser parser = new XmlParser();
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public DataHandler dh;
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Context context = null;
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/** Called when the activity is first created. */
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.main);
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View tmp = this.findViewById(R.id.join_us_textview);
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tmp.setVisibility(View.INVISIBLE);
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context = getApplicationContext();
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SharedPreferences prefs = getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
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boolean firstStart = prefs.getBoolean("firstStart", false);
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// Is it the first time the app is started?
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if (!firstStart) {
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// Do we have intarwebs?
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// YAY = Fetch the feed.
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// NAY = Inform about no connection.
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if (checkConnection()) {
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NodeList itemNodes = feed.fetch(feedURL, this, true);
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dh = parser.parse(itemNodes);
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} else {
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Toast toast = Toast.makeText(context, R.string.error_noconnection_firstart, Toast.LENGTH_LONG);
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toast.show();
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}
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} else {
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if (checkConnection()) {
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NodeList itemNodes = feed.fetch(feedURL, this, true);
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dh = parser.parse(itemNodes);
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} else {
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NodeList itemNodes = feed.fetch(localURL, this, false);
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dh = parser.parse(itemNodes);
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Toast toast = Toast.makeText(context, R.string.error_noconnection_noupdate, Toast.LENGTH_LONG);
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toast.show();
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}
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}
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}
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public void clickHandler(View v) {
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if (v.getId() == R.id.program_button) {
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startActivity(new Intent(context, ProgramList.class));
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} else if (v.getId() == R.id.bli_med_button) {
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View j = this.findViewById(R.id.bli_med_button);
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ImageView p = (ImageView)this.findViewById(R.id.paragraph);
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View t = this.findViewById(R.id.join_us_textview);
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j.setClickable(false);
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p.setVisibility(View.INVISIBLE);
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t.setVisibility(View.VISIBLE);
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// FIX ON BACK PRESSED!
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}
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}
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@Override
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public void onBackPressed () {
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View t = this.findViewById(R.id.join_us_textview);
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if (t.getVisibility() == View.VISIBLE) {
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View j = this.findViewById(R.id.bli_med_button);
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ImageView p = (ImageView)this.findViewById(R.id.paragraph);
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j.setClickable(true);
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t.setVisibility(View.INVISIBLE);
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p.setVisibility(View.VISIBLE);
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} else {
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finish();
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}
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}
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/* Check for Internet connection. */
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boolean checkConnection() {
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ConnectivityManager conMan
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= (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
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NetworkInfo netInfo = conMan.getActiveNetworkInfo();
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return netInfo != null;
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}
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}
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@@ -0,0 +1,20 @@
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package com.studentersamfundet.app;
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public class Event {
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int id;
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String title;
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String description;
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String date;
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String location;
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String category;
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Event next;
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Event(int id, String title, String description, String date, String location, String category) {
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this.id = id;
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this.title = title;
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this.description = description;
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this.date = date;
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this.location = location;
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this.category = category;
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}
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}
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@@ -0,0 +1,109 @@
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package com.studentersamfundet.app;
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import java.io.FileInputStream;
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import java.io.FileNotFoundException;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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import java.net.HttpURLConnection;
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import java.net.URL;
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import java.net.URLConnection;
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import javax.xml.parsers.DocumentBuilder;
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import javax.xml.parsers.DocumentBuilderFactory;
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import javax.xml.parsers.ParserConfigurationException;
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import org.w3c.dom.Document;
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import org.w3c.dom.NodeList;
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import org.xml.sax.SAXException;
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import android.content.Context;
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public class FeedFetcher {
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String curLastBuild = "";
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private InputStream OpenHttpConnection(String URL) throws IOException {
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InputStream in = null;
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int response = -1;
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URL url = new URL(URL);
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URLConnection con = url.openConnection();
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if (!(con instanceof HttpURLConnection))
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throw new IOException("Not an HTTP connection!");
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try {
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HttpURLConnection httpCon = (HttpURLConnection) con;
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httpCon.setAllowUserInteraction(false);
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httpCon.setInstanceFollowRedirects(true);
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httpCon.setRequestMethod("GET");
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httpCon.connect();
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response = httpCon.getResponseCode();
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if (response == HttpURLConnection.HTTP_OK)
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in = httpCon.getInputStream();
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} catch (Exception e) {
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throw new IOException("Error connecting.");
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}
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return in;
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}
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public NodeList fetch(String URL, Context c, boolean con) {
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InputStream in = null;
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NodeList itemNodes = null;
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try {
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if (con) {
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in = OpenHttpConnection(URL);
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saveFile(in, c);
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in = OpenHttpConnection(URL);
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} else
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in = new FileInputStream(URL);
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Document doc = null;
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DocumentBuilderFactory dbf =
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DocumentBuilderFactory.newInstance();
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DocumentBuilder db;
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try {
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db = dbf.newDocumentBuilder();
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doc = db.parse(in);
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} catch (ParserConfigurationException e) {
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} catch (SAXException e) {}
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doc.getDocumentElement().normalize();
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// Retrieve all the <item> nodes.
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itemNodes = doc.getElementsByTagName("item");
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in.close();
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} catch (IOException e) {}
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return itemNodes;
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}
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void saveFile(InputStream in, Context c) {
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InputStreamReader isr = new InputStreamReader(in);
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int charRead;
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int BUFFER_SIZE = 2000;
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String FILENAME = "dns_events";
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String str = "";
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char[] inputBuffer = new char[BUFFER_SIZE];
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try {
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while ((charRead = isr.read(inputBuffer))>0) {
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String readString = String.copyValueOf(inputBuffer, 0, charRead);
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str += readString;
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inputBuffer = new char[BUFFER_SIZE];
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}
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in.close();
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} catch (IOException e) {}
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try {
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FileOutputStream fos = c.openFileOutput(FILENAME, Context.MODE_PRIVATE);
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fos.write(str.getBytes());
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fos.close();
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} catch (FileNotFoundException e) {
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} catch (IOException e){}
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}
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}
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@@ -0,0 +1,51 @@
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package com.studentersamfundet.app;
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import android.app.ListActivity;
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import android.os.Bundle;
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import android.view.View;
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import android.widget.ArrayAdapter;
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import android.widget.ListAdapter;
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import android.widget.ListView;
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public class ProgramList extends ListActivity {
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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// setContentView(R.layout.event_list);
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// View v = this.findViewById(R.id.program_button);
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// v.setClickable(false);
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View header = getLayoutInflater().inflate(R.layout.header, null);
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View footer = getLayoutInflater().inflate(R.layout.footer, null);
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ListView listView = getListView();
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listView.addHeaderView(header);
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listView.addFooterView(footer);
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ListAdapter adapter = createAdapter();
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setListAdapter(adapter);
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}
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protected ListAdapter createAdapter() {
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String[] vals = populateList();
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ListAdapter adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, vals);
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return adapter;
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}
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public String[] populateList() {
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String[] val = new String[10];
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val[0] = "test!";
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val[1] = "test2";
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val[2] = "test3";
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val[3] = "test3";
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val[4] = "test3";
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val[5] = "test3";
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val[6] = "test3";
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val[7] = "test3";
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val[8] = "test3";
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val[9] = "test3";
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return val;
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}
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}
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@@ -0,0 +1,66 @@
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package com.studentersamfundet.app;
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import org.w3c.dom.Element;
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import org.w3c.dom.Node;
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import org.w3c.dom.NodeList;
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public class XmlParser {
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public static DataHandler dh;
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public XmlParser() {
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dh = new DataHandler();
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}
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DataHandler parse(NodeList itemNodes) {
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String id = "";
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String title = "";
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String description = "";
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String date = "";
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String location = "";
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String category = "";
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// String pictureUrl = ""; Necessary?
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for (int i = 0; i < itemNodes.getLength(); i++) {
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Node itemNode = itemNodes.item(i);
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if (itemNode.getNodeType() == Node.ELEMENT_NODE) {
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// Convert the Node into an Element.
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Element itemElement = (Element) itemNode;
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// Get all elements under the <item> element.
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NodeList idNodes = (itemElement).getElementsByTagName("id");
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NodeList titleNodes = (itemElement).getElementsByTagName("title");
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NodeList descriptionNodes = (itemElement).getElementsByTagName("description");
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NodeList dateNodes = (itemElement).getElementsByTagName("date");
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NodeList locationNodes = (itemElement).getElementsByTagName("location");
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NodeList categoryNodes = (itemElement).getElementsByTagName("category");
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// Convert a Node into an Element.
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Element idElement = (Element) idNodes.item(0);
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Element titleElement = (Element) titleNodes.item(0);
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Element descriptionElement = (Element) descriptionNodes.item(0);
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Element dateElement = (Element) dateNodes.item(0);
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Element locationElement = (Element) locationNodes.item(0);
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Element categoryElement = (Element) categoryNodes.item(0);
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// Get all the child nodes.
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NodeList idTextNodes = ((Node) idElement).getChildNodes();
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NodeList titleTextNodes = ((Node) titleElement).getChildNodes();
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NodeList descriptionTextNodes = ((Node) descriptionElement).getChildNodes();
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NodeList dateTextNodes = ((Node) dateElement).getChildNodes();
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NodeList locationTextNodes = ((Node) locationElement).getChildNodes();
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NodeList categoryTextNodes = ((Node) categoryElement).getChildNodes();
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// Retrieve the text.
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id = ((Node) idTextNodes.item(0)).getNodeValue();
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title = ((Node) titleTextNodes.item(0)).getNodeValue();
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description = ((Node) descriptionTextNodes.item(0)).getNodeValue();
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date = ((Node) dateTextNodes.item(0)).getNodeValue();
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location = ((Node) locationTextNodes.item(0)).getNodeValue();
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category = ((Node) categoryTextNodes.item(0)).getNodeValue();
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dh.insert(id, title, description, date, location, category);
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}
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}
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return dh;
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}
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}
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Block a user