extract the images from rss feed

extract the images from rss feed - java

I'm new to android development application and i suppose to parse rss url into a listview. the code is working but we want to extract the images from the rss feed and display it into the listview.
RssItem.java
public class RssItem {
// item title
private String title;
// item link
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;
}
#Override
public String toString() {
return title;
}
}
ListListener.java
public class ListListener implements OnItemClickListener {
// List item's reference
List<RssItem> listItems;
// Calling activity reference
Activity activity;
public ListListener(List<RssItem> aListItems, Activity anActivity) {
listItems = aListItems;
activity = anActivity;
}
/**
* Start a browser with url from the rss item.
*/
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);
}
}
RssParseHandler.java
public class RssParseHandler extends DefaultHandler {
private List<RssItem> rssItems;
// Used to reference item while parsing
private RssItem currentItem;
// Parsing title indicator
private boolean parsingTitle;
// Parsing link indicator
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 ("item".equals(qName)) {
currentItem = new RssItem();
} else if ("title".equals(qName)) {
parsingTitle = true;
} else if ("link".equals(qName)) {
parsingLink = true;
}
}
#Override
public void endElement(String uri, String localName, String qName) throws SAXException {
if ("item".equals(qName)) {
rssItems.add(currentItem);
currentItem = null;
} else if ("title".equals(qName)) {
parsingTitle = false;
} else if ("link".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
public class RssReader {
private String rssUrl;
/**
* Constructor
*
* #param rssUrl
*/
public RssReader(String rssUrl) {
this.rssUrl = rssUrl;
}
/**
* Get RSS items.
*
* #return
*/
public List<RssItem> getItems() throws Exception {
// SAX parse RSS data
SAXParserFactory factory = SAXParserFactory.newInstance();
SAXParser saxParser = factory.newSAXParser();
RssParseHandler handler = new RssParseHandler();
saxParser.parse(rssUrl, handler);
return handler.getItems();
}
}
ITCutiesReaderAppActivity.java
public class ITCutiesReaderAppActivity extends Activity {
// A reference to the local object
private ITCutiesReaderAppActivity local;
/**
* This method creates main application view
*/
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Set view
setContentView(R.layout.main);
// Set reference to this activity
local = this;
GetRSSDataTask task = new GetRSSDataTask();
// Start download RSS task
task.execute("http://www.itcuties.com/feed/#sthash.YI6YrEet.dpuf");
// Debug the thread name
Log.d("ITCRssReader", Thread.currentThread().getName());
}
public class GetRSSDataTask extends AsyncTask<String, Void, List<RssItem> > {
#Override
protected List<RssItem> doInBackground(String... urls) {
// Debug the task thread name
Log.d("ITCRssReader", Thread.currentThread().getName());
try {
// Create RSS reader
RssReader rssReader = new RssReader(urls[0]);
// Parse RSS, get items
return rssReader.getItems();
} catch (Exception e) {
Log.e("ITCRssReader", e.getMessage());
}
return null;
}
#Override
protected void onPostExecute(List<RssItem> result) {
// Get a ListView from main view
ListView itcItems = (ListView) findViewById(R.id.listMainView1);
// Create a list adapter
ArrayAdapter<RssItem> adapter = new ArrayAdapter<RssItem> (local,android.R.layout.simple_list_item_1, result);
// Set list adapter for the ListView
itcItems.setAdapter(adapter);
// Set list view item click listener
itcItems.setOnItemClickListener(new ListListener(result, local));
}
}
}

After reading online for a few hours I got this, originally the code didn't parse the image but after reading documentation on DOM elements (from the documentation that comes with Android Studio), I was able to create the following code snippet which actually works. I tested it in a console.
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
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 javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
/**
* Created by user on 7/1/2016.
*/
public class FeedParser {
// names of the XML tags
static final String PUB_DATE = "pubDate";
static final String LINK = "link";
static final String TITLE = "title";
static final String ITEM = "item";
static final String IMAGE = "media:thumbnail";
static final String AUTHOR = "author";
final URL feedUrl;
public FeedParser(String feedUrl){
try {
this.feedUrl = new URL(feedUrl);
} catch (MalformedURLException e) {
throw new RuntimeException(e);
}
}
public InputStream getInputStream() {
try {
return feedUrl.openConnection().getInputStream();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
public void parse() {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
try {
DocumentBuilder builder = factory.newDocumentBuilder();
Document dom = builder.parse(this.getInputStream());
Element root = dom.getDocumentElement();
NodeList items = root.getElementsByTagName(ITEM);
for (int i=0;i<items.getLength();i++){
Node item = items.item(i);
NodeList properties = item.getChildNodes();
for (int j=0;j<properties.getLength();j++){
Node property = properties.item(j);
String name = property.getNodeName();
if (name.equalsIgnoreCase(TITLE)){
System.out.println(property.getFirstChild().getNodeValue());
} else if (name.equalsIgnoreCase(LINK)){
System.out.println(property.getFirstChild().getNodeValue());
} else if (name.equalsIgnoreCase(AUTHOR)){
StringBuilder text = new StringBuilder();
NodeList chars = property.getChildNodes();
for (int k=0;k<chars.getLength();k++){
text.append(chars.item(k).getNodeValue());
}
System.out.println(text.toString());
} else if (name.equalsIgnoreCase(PUB_DATE)){
System.out.println(property.getFirstChild().getNodeValue());
}
else if (name.equalsIgnoreCase(IMAGE)){
System.out.println(property.getAttributes().getNamedItem("url").getNodeValue());
}
}
}
} catch (Exception e) {
throw new RuntimeException(e);
}
}
public static void main(String[] aeg){
new FeedParser("http://www.pcworld.com/index.rss").parse();
}
}
Though my answer is late i hope it helps someone else

You are reinventing the wheel. You can simplify everything by using the android-rss library with droidQuery (originally posted here):
final RSSHandler handler = new RSSHandler(new RSSConfig());
$.ajax(new AjaxOptions().url(options.url())
.type("GET")
.dataType("XML")
.context(this)
.SAXContentHandler(handler)
.success(new Function() {
#Override
public void invoke($ droidQuery, Object... params) {
RSSFeed feed = handler.feed();
List<RSSItem> = feed.getItems();
//use this list to update your list adapter, then call the method "getThumbnails()" to get the images associated with the feed item.
}
}));

Related

Mopub: integrating inmobi native ads with the adapter InMobiNative

It appears that the whole inmobi sdk has changed significantly from 4.4.1 to 5.2.3 which means that I cannot integrate the inmobi sdk successfully into mopub. This is adapter bundled within the mopub sdk:
https://github.com/motain/android-ads-MoPub/blob/master/extras/src/com/mopub/nativeads/InMobiNative.java
I have copied and pasted the code here for your convenience - you can see that the author has said that the adapter was tested on 4.4.1:
package com.mopub.nativeads;
import android.app.Activity;
import android.content.Context;
import android.view.View;
import android.view.ViewGroup;
import com.inmobi.commons.InMobi;
import com.inmobi.monetization.IMErrorCode;
import com.inmobi.monetization.IMNative;
import com.inmobi.monetization.IMNativeListener;
import com.mopub.common.util.MoPubLog;
import org.json.JSONException;
import org.json.JSONObject;
import org.json.JSONTokener;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import static com.mopub.common.util.Json.getJsonValue;
import static com.mopub.common.util.Numbers.parseDouble;
/*
* Tested with InMobi SDK 4.4.1
*/
class InMobiNative extends CustomEventNative implements IMNativeListener {
private static final String APP_ID_KEY = "app_id";
private Context mContext;
private CustomEventNativeListener mCustomEventNativeListener;
// CustomEventNative implementation
#Override
protected void loadNativeAd(final Context context,
final CustomEventNativeListener customEventNativeListener,
final Map<String, Object> localExtras,
final Map<String, String> serverExtras) {
mContext = context;
if (!(context instanceof Activity)) {
customEventNativeListener.onNativeAdFailed(NativeErrorCode.NATIVE_ADAPTER_CONFIGURATION_ERROR);
return;
}
final Activity activity = (Activity) context;
final String appId;
if (extrasAreValid(serverExtras)) {
appId = serverExtras.get(APP_ID_KEY);
} else {
customEventNativeListener.onNativeAdFailed(NativeErrorCode.NATIVE_ADAPTER_CONFIGURATION_ERROR);
return;
}
mCustomEventNativeListener = customEventNativeListener;
InMobi.initialize(activity, appId);
final IMNative imNative = new IMNative(this);
imNative.loadAd();
}
// IMNativeListener implementation
#Override
public void onNativeRequestSucceeded(final IMNative imNative) {
if (imNative == null) {
mCustomEventNativeListener.onNativeAdFailed(NativeErrorCode.NETWORK_INVALID_STATE);
return;
}
final InMobiForwardingNativeAd inMobiForwardingNativeAd;
try {
inMobiForwardingNativeAd = new InMobiForwardingNativeAd(imNative);
} catch (IllegalArgumentException e) {
mCustomEventNativeListener.onNativeAdFailed(NativeErrorCode.UNSPECIFIED);
return;
} catch (JSONException e) {
mCustomEventNativeListener.onNativeAdFailed(NativeErrorCode.INVALID_JSON);
return;
}
final List<String> imageUrls = new ArrayList<String>();
final String mainImageUrl = inMobiForwardingNativeAd.getMainImageUrl();
if (mainImageUrl != null) {
imageUrls.add(mainImageUrl);
}
final String iconUrl = inMobiForwardingNativeAd.getIconImageUrl();
if (iconUrl != null) {
imageUrls.add(iconUrl);
}
preCacheImages(mContext, imageUrls, new ImageListener() {
#Override
public void onImagesCached() {
mCustomEventNativeListener.onNativeAdLoaded(inMobiForwardingNativeAd);
}
#Override
public void onImagesFailedToCache(NativeErrorCode errorCode) {
mCustomEventNativeListener.onNativeAdFailed(errorCode);
}
});
}
#Override
public void onNativeRequestFailed(final IMErrorCode errorCode) {
if (errorCode == IMErrorCode.INVALID_REQUEST) {
mCustomEventNativeListener.onNativeAdFailed(NativeErrorCode.NETWORK_INVALID_REQUEST);
} else if (errorCode == IMErrorCode.INTERNAL_ERROR || errorCode == IMErrorCode.NETWORK_ERROR) {
mCustomEventNativeListener.onNativeAdFailed(NativeErrorCode.NETWORK_INVALID_STATE);
} else if (errorCode == IMErrorCode.NO_FILL) {
mCustomEventNativeListener.onNativeAdFailed(NativeErrorCode.NETWORK_NO_FILL);
} else {
mCustomEventNativeListener.onNativeAdFailed(NativeErrorCode.UNSPECIFIED);
}
}
private boolean extrasAreValid(final Map<String, String> serverExtras) {
final String placementId = serverExtras.get(APP_ID_KEY);
return (placementId != null && placementId.length() > 0);
}
static class InMobiForwardingNativeAd extends BaseForwardingNativeAd {
static final int IMPRESSION_MIN_TIME_VIEWED = 0;
// Modifiable keys
static final String TITLE = "title";
static final String DESCRIPTION = "description";
static final String SCREENSHOTS = "screenshots";
static final String ICON = "icon";
static final String LANDING_URL = "landing_url";
static final String CTA = "cta";
static final String RATING = "rating";
// Constant keys
static final String URL = "url";
private final IMNative mImNative;
InMobiForwardingNativeAd(final IMNative imNative) throws IllegalArgumentException, JSONException {
if (imNative == null) {
throw new IllegalArgumentException("InMobi Native Ad cannot be null");
}
mImNative = imNative;
final JSONTokener jsonTokener = new JSONTokener(mImNative.getContent());
final JSONObject jsonObject = new JSONObject(jsonTokener);
setTitle(getJsonValue(jsonObject, TITLE, String.class));
setText(getJsonValue(jsonObject, DESCRIPTION, String.class));
final JSONObject screenShotJsonObject = getJsonValue(jsonObject, SCREENSHOTS, JSONObject.class);
if (screenShotJsonObject != null) {
setMainImageUrl(getJsonValue(screenShotJsonObject, URL, String.class));
}
final JSONObject iconJsonObject = getJsonValue(jsonObject, ICON, JSONObject.class);
if (iconJsonObject != null) {
setIconImageUrl(getJsonValue(iconJsonObject, URL, String.class));
}
setClickDestinationUrl(getJsonValue(jsonObject, LANDING_URL, String.class));
setCallToAction(getJsonValue(jsonObject, CTA, String.class));
try {
setStarRating(parseDouble(jsonObject.opt(RATING)));
} catch (ClassCastException e) {
MoPubLog.d("Unable to set invalid star rating for InMobi Native.");
}
setImpressionMinTimeViewed(IMPRESSION_MIN_TIME_VIEWED);
}
#Override
public void prepareImpression(final View view) {
if (view != null && view instanceof ViewGroup) {
mImNative.attachToView((ViewGroup) view);
} else if (view != null && view.getParent() instanceof ViewGroup) {
mImNative.attachToView((ViewGroup) view.getParent());
} else {
MoPubLog.e("InMobi did not receive ViewGroup to attachToView, unable to record impressions");
}
}
#Override
public void handleClick(final View view) {
mImNative.handleClick(null);
}
#Override
public void destroy() {
mImNative.detachFromView();
}
}
}
Has anyone been successful in converting this adapter to work with the latest 5.2.3 inmobi sdk?
The 4.4.1 sdk is not even available to download anymore and if there is no adapter for 5.2.3, then I'm afraid inmobi integration with in mopub is not possible?

I waited a few days and did not get any response back from Inmobi so I decided to do some investigation myself on how to solve this issue. Eventually I can across this website which had a sample app with SDK 5.0.0 but the class seems to work with SDK 5.2.3 without any problems.
https://support.inmobi.com/monetize/integration/mediation-adapters/mopub-adaptor-android-sdk-integration-guide/#getting-started
I had to read the class and make my own adjustments to the adapter so that it will work - their adapter had issues as they were using deprecated classes. So here is the updated adapter:
package com.mopub.nativeads;
import android.app.Activity;
import android.content.Context;
import android.support.annotation.NonNull;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import com.inmobi.ads.InMobiAdRequestStatus;
import com.inmobi.sdk.InMobiSdk;
import com.mopub.common.MoPub;
import com.mopub.common.logging.MoPubLog;
import org.json.JSONException;
import org.json.JSONObject;
import org.json.JSONTokener;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import static com.mopub.common.util.Json.getJsonValue;
import static com.mopub.common.util.Numbers.parseDouble;
import static com.mopub.nativeads.NativeImageHelper.preCacheImages;
/*
* Tested with InMobi SDK 5.2.3
*/
public class InMobiNative extends CustomEventNative {
private static boolean isAppIntialize = false;
private JSONObject serverParams;
private String accountId="XXX";
private long placementId=123L;
#Override
protected void loadNativeAd(#NonNull Activity arg0,
#NonNull CustomEventNativeListener arg1,
#NonNull Map<String, Object> arg2,
#NonNull Map<String, String> arg3) {
// TODO Auto-generated method stub
Log.d("InMobiNativeCustomEvent", "Reached native adapter");
try {
serverParams = new JSONObject(arg3);
} catch (Exception e) {
Log.e("InMobi", "Could not parse server parameters");
e.printStackTrace();
}
Activity activity = null;
if (arg0 instanceof Activity) {
activity = arg0;
} else {
// You may also pass in an Activity Context in the localExtras map
// and retrieve it here.
}
if (activity == null) {
arg1.onNativeAdFailed(NativeErrorCode.NATIVE_ADAPTER_CONFIGURATION_ERROR);
return;
}
try {
accountId = serverParams.getString("accountid");
placementId = serverParams.getLong("placementId");
} catch (JSONException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
if (!isAppIntialize) {
try {
InMobiSdk.init(activity,"accountid");
} catch (Exception e) {
e.printStackTrace();
}
isAppIntialize = true;
}
InMobiSdk.setAreaCode("areacode");
InMobiSdk.setEducation(InMobiSdk.Education.HIGH_SCHOOL_OR_LESS);
InMobiSdk.setGender(InMobiSdk.Gender.MALE);
InMobiSdk.setIncome(1000);
InMobiSdk.setAge(23);
InMobiSdk.setPostalCode("postalcode");
InMobiSdk.setLogLevel(InMobiSdk.LogLevel.DEBUG);
InMobiSdk.setLocationWithCityStateCountry("blore", "kar", "india");
InMobiSdk.setLanguage("ENG");
InMobiSdk.setInterests("dance");
InMobiSdk.setEthnicity(InMobiSdk.Ethnicity.ASIAN);
InMobiSdk.setYearOfBirth(1980);
Map<String, String> map = new HashMap<String, String>();
map.put("tp", "c_mopub");
map.put("tp-ver", MoPub.SDK_VERSION);
final InMobiStaticNativeAd inMobiStaticNativeAd =
new InMobiStaticNativeAd(arg0,
new ImpressionTracker(arg0),
new NativeClickHandler(arg0),
arg1);
inMobiStaticNativeAd.setIMNative(new com.inmobi.ads.InMobiNative(placementId, inMobiStaticNativeAd));
inMobiStaticNativeAd.setExtras(map);
inMobiStaticNativeAd.loadAd();
}
static class InMobiStaticNativeAd extends StaticNativeAd implements com.inmobi.ads.InMobiNative.NativeAdListener {
static final int IMPRESSION_MIN_TIME_VIEWED = 1000;
// Modifiable keys
static final String TITLE = "title";
static final String DESCRIPTION = "description";
static final String SCREENSHOTS = "screenshots";
static final String ICON = "icon";
static final String LANDING_URL = "landingURL";
static final String CTA = "cta";
static final String RATING = "rating";
// Constant keys
static final String URL = "url";
private final Context mContext;
private final CustomEventNativeListener mCustomEventNativeListener;
private final ImpressionTracker mImpressionTracker;
private final NativeClickHandler mNativeClickHandler;
private com.inmobi.ads.InMobiNative mImNative;
InMobiStaticNativeAd(final Context context,
final ImpressionTracker impressionTracker,
final NativeClickHandler nativeClickHandler,
final CustomEventNativeListener customEventNativeListener) {
InMobiSdk.init(context,"9107a61fcda34c969d3f74934a352dcb");
mContext = context.getApplicationContext();
mImpressionTracker = impressionTracker;
mNativeClickHandler = nativeClickHandler;
mCustomEventNativeListener = customEventNativeListener;
}
void setIMNative(final com.inmobi.ads.InMobiNative imNative) {
mImNative = imNative;
}
void setExtras(Map<String,String> map){
mImNative.setExtras(map);
}
void loadAd() {
mImNative.load();
}
// Lifecycle Handlers
#Override
public void prepare(final View view) {
if (view != null && view instanceof ViewGroup) {
com.inmobi.ads.InMobiNative.bind((ViewGroup)view, mImNative);
} else if (view != null && view.getParent() instanceof ViewGroup) {
com.inmobi.ads.InMobiNative.bind((ViewGroup)(view.getParent()), mImNative);
} else {
Log.e("MoPub", "InMobi did not receive ViewGroup to attachToView, unable to record impressions");
}
mImpressionTracker.addView(view, this);
mNativeClickHandler.setOnClickListener(view, this);
}
#Override
public void clear(final View view) {
mImpressionTracker.removeView(view);
mNativeClickHandler.clearOnClickListener(view);
}
#Override
public void destroy() {
//InMobiNative.unbind(arg0);
mImpressionTracker.destroy();
}
// Event Handlers
#Override
public void recordImpression(final View view) {
notifyAdImpressed();
}
#Override
public void handleClick(final View view) {
notifyAdClicked();
mNativeClickHandler.openClickDestinationUrl(getClickDestinationUrl(), view);
mImNative.reportAdClick(null);
}
void parseJson(final com.inmobi.ads.InMobiNative inMobiNative) throws JSONException {
final JSONTokener jsonTokener = new JSONTokener((String) inMobiNative.getAdContent());
final JSONObject jsonObject = new JSONObject(jsonTokener);
setTitle(getJsonValue(jsonObject, TITLE, String.class));
String text = getJsonValue(jsonObject, DESCRIPTION, String.class);
if(text!=null)
setText(text);
final JSONObject screenShotJsonObject = getJsonValue(jsonObject, SCREENSHOTS, JSONObject.class);
if (screenShotJsonObject != null) {
setMainImageUrl(getJsonValue(screenShotJsonObject, URL, String.class));
}
final JSONObject iconJsonObject = getJsonValue(jsonObject, ICON, JSONObject.class);
if (iconJsonObject != null) {
setIconImageUrl(getJsonValue(iconJsonObject, URL, String.class));
}
final String clickDestinationUrl = getJsonValue(jsonObject, LANDING_URL, String.class);
if (clickDestinationUrl == null) {
final String errorMessage = "InMobi JSON response missing required key: "
+ LANDING_URL + ". Failing over.";
MoPubLog.d(errorMessage);
throw new JSONException(errorMessage);
}
setClickDestinationUrl(clickDestinationUrl);
String cta = getJsonValue(jsonObject, CTA, String.class);
if(cta!=null)
setCallToAction(cta);
try {
if(jsonObject.opt(RATING)!=null){
setStarRating(parseDouble(jsonObject.opt(RATING)));
}
} catch (ClassCastException e) {
Log.d("MoPub", "Unable to set invalid star rating for InMobi Native.");
} setImpressionMinTimeViewed(IMPRESSION_MIN_TIME_VIEWED);
}
#Override
public void onAdDismissed(com.inmobi.ads.InMobiNative inMobiNative) {
// TODO Auto-generated method stub
Log.d("InMobiNativeCustomEvent","Native Ad is dismissed");
}
#Override
public void onAdDisplayed(com.inmobi.ads.InMobiNative inMobiNative) {
// TODO Auto-generated method stub
Log.d("InMobiNativeCustomEvent","Native Ad is displayed");
}
#Override
public void onAdLoadFailed(com.inmobi.ads.InMobiNative arg0, InMobiAdRequestStatus arg1) {
// TODO Auto-generated method stub
Log.d("InMobiNativeCustomEvent","Native ad failed to load");
String errorMsg="";
switch (arg1.getStatusCode()) {
case INTERNAL_ERROR:
errorMsg="INTERNAL_ERROR";
break;
case REQUEST_INVALID:
errorMsg="INVALID_REQUEST";
break;
case NETWORK_UNREACHABLE:
errorMsg="NETWORK_UNREACHABLE";
break;
case NO_FILL:
errorMsg="NO_FILL";
break;
case REQUEST_PENDING:
errorMsg="REQUEST_PENDING";
break;
case REQUEST_TIMED_OUT:
errorMsg="REQUEST_TIMED_OUT";
break;
case SERVER_ERROR:
errorMsg="SERVER_ERROR";
break;
case AD_ACTIVE:
errorMsg="AD_ACTIVE";
break;
case EARLY_REFRESH_REQUEST:
errorMsg="EARLY_REFRESH_REQUEST";
break;
default:
errorMsg="NETWORK_ERROR";
break;
}
if (errorMsg == "INVALID_REQUEST") {
mCustomEventNativeListener.onNativeAdFailed(NativeErrorCode.NETWORK_INVALID_REQUEST);
} else if (errorMsg == "INTERNAL_ERROR" || errorMsg == "NETWORK_ERROR") {
mCustomEventNativeListener.onNativeAdFailed(NativeErrorCode.NETWORK_INVALID_STATE);
} else if (errorMsg == "NO_FILL") {
mCustomEventNativeListener.onNativeAdFailed(NativeErrorCode.NETWORK_NO_FILL);
} else if (errorMsg == "REQUEST_TIMED_OUT"){
mCustomEventNativeListener.onNativeAdFailed(NativeErrorCode.NETWORK_TIMEOUT);
}else if(errorMsg == "NETWORK_UNREACHABLE"){
mCustomEventNativeListener.onNativeAdFailed(NativeErrorCode.CONNECTION_ERROR);
}
else {
mCustomEventNativeListener.onNativeAdFailed(NativeErrorCode.UNSPECIFIED);
}
}
#Override
public void onUserLeftApplication(com.inmobi.ads.InMobiNative arg0) {
// TODO Auto-generated method stub
Log.d("InMobiNativeCustomEvent","User left application");
}
#Override
public void onAdLoadSucceeded(com.inmobi.ads.InMobiNative inMobiNative) {
// TODO Auto-generated method stub
Log.v("InMobiNativeCustomEvent", "Ad loaded:"+inMobiNative.getAdContent().toString());
try {
parseJson(inMobiNative);
} catch (JSONException e) {
mCustomEventNativeListener.onNativeAdFailed(NativeErrorCode.INVALID_RESPONSE);
return;
}
final List<String> imageUrls = new ArrayList<String>();
/*final String mainImageUrl = getMainImageUrl();
if (mainImageUrl != null) {
imageUrls.add(mainImageUrl);
}*/
final String iconUrl = getIconImageUrl();
if (iconUrl != null) {
imageUrls.add(iconUrl);
}
preCacheImages(mContext, imageUrls, new NativeImageHelper.ImageListener() {
#Override
public void onImagesCached() {
Log.v("InMobiNativeCustomEvent", "image cached");
mCustomEventNativeListener.onNativeAdLoaded(InMobiStaticNativeAd.this);
}
#Override
public void onImagesFailedToCache(NativeErrorCode errorCode) {
Log.v("InMobiNativeCustomEvent", "image failed to cache");
mCustomEventNativeListener.onNativeAdFailed(errorCode);
}
});
}
}
}
Then you need to read this website telling you more about how to integrate their SDK into your app. You need to copy and paste this into your manifest:
https://support.inmobi.com/android-sdk-integration-guide/#getting-started
<activity android:name="com.inmobi.rendering.InMobiAdActivity"
android:configChanges="keyboardHidden|orientation|keyboard|smallestScreenSize|screenSize"
android:theme="#android:style/Theme.Translucent.NoTitleBar"
android:hardwareAccelerated="true" />
<receiver
android:name="com.inmobi.commons.core.utilities.uid.ImIdShareBroadCastReceiver"
android:enabled="true"
android:exported="true" >
<intent-filter>
<action android:name="com.inmobi.share.id" />
</intent-filter>
</receiver>
Without these classes, the SDK will not initialize and you will get an error in the logs.
Please do read through both websites, I'm just dealing on a high level on how you can solve the integration but there are other stuff you should put into your app to make mopub work successfully with inmobi for Android.

Retrieve data using Gson

I have pasted my code below and would appreciate it if someone would help me work through it. When I run my activity a list should be getting updated inside of my app. I haven't been able to pull in any data though. When I log first I get [] and nothing else. If I check the size it comes back as 0.
*I am expecting to retrieve the id, name, and size and place them in textviews within a listview.
When I access my URL string from my browser I get this:
{ "begin":
[
{"id":1,"name":"1","size":2},
{"id":2,"name":"2","size":2}],
"end":
[
{"id":1,"name":"1","size":2},
{"id":2,"name":"2","size":2}
]
}
models/Main.java
import android.content.Context;
import ...Cement;
import ...utils.NetworkUtilities;
import ...utils.ServerErrorException;
import com.google.gson.Gson;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
import org.apache.http.NameValuePair;
import org.apache.http.message.BasicNameValuePair;
import org.json.JSONException;
import java.util.ArrayList;
import java.util.List;
public class Main {
private String id;
private String name;
private static List<Main> first;
public Main() {}
public String getId() {
return id;
}
public String getName() {
return name;
}
/**
* #return array of Main.
* #throws JSONException
*/
public static List<Main> updateMain(Context context) throws JSONException, ServerErrorException {
List<NameValuePair> params = new ArrayList<NameValuePair>();
if( Member.session(context) != null ) {
params(new BasicNameValuePair(Cement.ACCESS_CODE, Member.session(context).getAccessCode()));
} else {
return null;
}
String URL = Cement.BASE_URL + Cement.MAIN_URI;
String jsonString = NetworkUtilities.SendHttpGet(URL, params);
if (jsonString == null) return main(context);
JSONParse parser = new JsonParser();
JSONObject jsonObject = parser.parse(jsonString).getAsJsonObject();
if (jsonObject != null && jsonObject.get("begin") != null) {
Gson gson = new Gson();
for (JSONElement mainObject : jsonObject.get("begin").getAsJsonArray()) {
Main spot = gson.fromJson(mainObject.getAsJsonObject().get("begin"), Main.class);
Main.setSpot(context,spot);
}
} else {
// Server error exception...
}
return first(context);
}
public static List<Main> first(Context context) {
if (first == null) {
try {
first = new ArrayList<Main>();
} finally {
if (first == null) {
first = new ArrayList<Main>();
}
}
}
return first;
}
public static void setMain(Context context, Main second) {
Main previous = find(context, second.getId());
if (previous != null) {
first.set(first.indexOf(previous), second);
} else {
first = first(context);
first.add(second);
}
}
public static Main find(Context context, String id) {
for(Main first : first(context)) {
if(second.getId().equals(id)) {
return second;
}
}
return null;
}
}
activities/Home.java
public class Home extends Fragment {
private GetMainListTask mGetMainListTask = null;
private ListView mMainListView;
private MainListAdapter mMainListAdapter;
private List<Main> mFirst;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment, container, false);
mFirst = First.first(mContext);
mMainListView = (ListView) rootView.findViewById(R.id.ListView);
mMainListAdapter = new MainListAdapter();
mMainListView.setAdapter(mMainListAdapter);
getFirst(true);
return rootView;
}
public void getFirst(Boolean showProgressDialog){
if (showProgressDialog) {
mProgressDialog = ProgressDialog.show(mContext, "", "Loading...", true);
}
mGetMainListTask = new GetMainListTask();
mGetMainListTask.execute();
}
public class GetMainListTask extends AsyncTask<Void, Void, List<Main>> {
private List<Exception> exceptions = new ArrayList<Exception>();
#Override
protected List<Main> doInBackground(Void... params) {
try {
return Main.updateMain(Home.this.getApplicationContext());
} catch (ServerErrorException e) {
exceptions.add(e);
return null;
} catch (JSONException e) {
exceptions.add(e);
return null;
} catch (Exception e) {
return null;
}
}
#Override
protected void onPostExecute(final List<Main> first) {
for (Exception e : exceptions) {
// Error...
}
if(first == null && exceptions.isEmpty()) {
if (getApplicationContext() != null) {
// Error...
}
}
onGetMainResult(first);
}
}
public void onGetMainResult(List<Main> first) {
boolean worked = (first != null && first.size() != 0);
mGetMainListTask = null;
if (worked) {
mFirst = first;
if (mMainListAdapter != null) {
mMainListAdapter.notifyDataSetChanged();
}
}
}
public class MainListAdapter extends BaseAdapter {
#Override
public int getCount() {
return mFirst.size();
}
#Override
public Object getItem(int i) {
return mFirst.get(i);
}
#Override
public long getItemId(int i) {
return i;
}
#Override
public View getView(int i, View convertView, ViewGroup parent) {
View view = View.inflate(getApplicationContext(), R.layout.list, null);
final Main first = mFirst.get(i);
if (mContext != null && first != null) {
// Do stuff...
}
return view;
}
}

It looks to me like you are trying to use Gson in a way too complicated way.
(Also, what are JSONParse and JSONObject in your code? From org.json or Jackson apparently. Why on earth would you use several different JSON libraries in the same piece of code? Just stick to Gson!)
If we begin with your original JSON string:
{ "begin":
[
{"id":1,"name":"1","size":2},
{"id":2,"name":"2","size":2}],
"end":
[
{"id":1,"name":"1","size":2},
{"id":2,"name":"2","size":2}
]
}
A natural way to model that into Java objects would be something like this, using two classes:
public class TopLevel {
List<Main> begin;
List<Main> end;
}
public class Main {
String id;
String name;
}
(Feel free to rename "TopLevel" to something better, to whatever it represents in your application.)
Now, parsing the JSON into Java objects (one TopLevel object containing a total of 4 Main objects), is as simple as:
Gson gson = new GsonBuilder().create();
TopLevel topLevel = gson.fromJson(jsonString, TopLevel.class);

the application says not responding, even after i used AsyncTask to relieve the load on the main thread

this code parses a locally stored xml file and then creates a dynamic UI from the parsed data, though i haven't completed the UI part. It was working fine till yesterday and now suddenly it is not responding.
public class XML_PARSER extends Activity {
String TAG= "XML_PARSER";
List optionList = new ArrayList(); ;
Document dom;
Document doc;
Menu mymenu=null;
String msg=null;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.parser);
new ParseXML().execute();
}
private class ParseXML extends AsyncTask<Integer, Integer, Document>{
#Override
protected Document doInBackground(Integer... params) {
DocumentBuilderFactory dbf= DocumentBuilderFactory.newInstance();
Document dom1=null;
try {
//Uri uri = Uri.parse("android.resource://com.example.xml_parser/raw/options");
InputStream is=getResources().openRawResource(R.raw.options);
DocumentBuilder db = dbf.newDocumentBuilder();
dom1=db.parse(is);
Log.i(TAG,"parsing done");
}
catch(ParserConfigurationException pce){
pce.printStackTrace();
}
catch(SAXException se){
se.printStackTrace();
}
catch(IOException ioe){
ioe.printStackTrace();
}
return dom1;
}
#Override
public void onPostExecute(Document d) {
ParseDocument(d);
//onCreateOptionsMenu(mymenu);
text();
}
}
#SuppressWarnings("unchecked")
public void ParseDocument(Document dom){
Element docEle = dom.getDocumentElement();
Node node;
NodeList n1= docEle.getElementsByTagName("Option");
if(n1!=null && n1.getLength()>0){
for(int i=0;i<n1.getLength();i++){
node=n1.item(i);
Element e1=(Element)n1.item(i);
it is somehow getting stuck at this getOption() as the log is not getting printed if written below while it is getting printed if written above it.
Option e = getOption(e1,node);
Log.i(TAG,"Parse Document reached");
optionList.add(e);
}
}
}
private Option getOption(Element el,Node parent){
String name= getTextValue(el,"Name");
String type = el.getAttribute("type");
Option op = new Option(name,type);
fillSubOptions(op, el, parent);
return op;
}
private String getTextValue(Element ele, String tagName){
String textVal=null;
NodeList n1 = ele.getElementsByTagName(tagName);
if(n1!=null && n1.getLength()>0){
Element el= (Element)n1.item(0);
textVal =el.getFirstChild().getNodeValue();
}
return textVal;
}
private void fillSubOptions(Option op, Element el, Node parent){
Element ele;
Node node;
String name = null;
NodeList n1 = el.getElementsByTagName("Option");
int count =0;
if(n1!=null && n1.getLength()>0){
for(int i=0;i<n1.getLength();i++){
ele = (Element)n1.item(i);
node= n1.item(i);
if((node.getParentNode()).equals(parent)){
name= getTextValue(ele, "Name");
count= op.printSubOptions(count);
op.setSubOptions(name);
}
}
}
}
#SuppressWarnings("unchecked")
#Override
public boolean onCreateOptionsMenu(Menu menu) {
this.mymenu=menu;
Iterator<Option> it= optionList.iterator();
int count=0;
while(it.hasNext()){
Option e= (Option)it.next();
if(e.getType().equals("menu")){
count++;
menu.add(0,count,0,e.getName());
}
}
getMenuInflater().inflate(R.menu.parser, menu);
return true;
}
public class Option {
String name;
String type;
String parent;
int count;
ArrayList<String> subOptions;
Option(String name,String type)
{
setName(name);
setType(type);
subOptions = new ArrayList<String>();
parent = null;
}
public void setName(String name) {
this.name = name;
}
public void setType(String type) {
this.type = type;
}
public void setSubOptions(String subOption) {
(this.subOptions).add(subOption);
}
public String getName() {
return name;
}
public int printSubOptions(int count) {
Iterator<String> it = (this.subOptions).iterator();
if(it.hasNext()){
while(it.hasNext()){
count++;
}
}
return count;
}
public String getType() {
return type;
}
}

As the methods called in the onPostExecuted gets the control of the UI thread,I hope that may be the cause as the parsing that you are doing is still done on the UI thread and so your application stops responding as it would be parsing the data.
Use onPreExecute() to start the ProgressDialog like this way.Declare the ProgressDialog Globally at the Top.
ProgressDialog pd;
Start it in the onPreExecute Method.
#Override
public void onPreExecute() {
pd=ProgressDialog.show(myActivity.this,"","Please Wait");
}
Call these both methods in doInBackground Itself at the Bottom.Don't call it in the PostExecute Method so that it gets executed in the BackGround
ParseDocument(d);
text();
Now, in the PostExecute method,dismiss the progressDialog.
#Override
public void onPostExecute(Document d) {
pd.dismiss(); //Dismiss the Progress Dialog
}

Android SAXParser, parse into array and get child nodes

I'm working on a small app that uses and xml file to print an ArrayList of chapters which in turn points to a specific html file.
I used this tutorial to get me started: http://www.anddev.org/novice-tutorials-f8/parsing-xml-from-the-net-using-the-saxparser-t353.html
My xml file looks something like this:
<chapters>
<chapter title="Förutsättningar">
<page title="Sida 3" url="sida_3.html" />
<page title="Sida 4" url="sida_4.html" />
</chapter>
</chapters>
Using the tutorial above I've managed to output each chapter node into an ArrayList with a onListItemClick function on each item. So far so good.
The problem I'm having is that I can't figure out how to get a specific child node and load the html file when I click an item. I'm pretty new to Android.
Any ideas? I would really appreciate ANY help on the subject.
Here's my source:
ParsingXML.java
public class ParsingXML extends ListActivity {
private final String MY_DEBUG_TAG = "XmlParser";
public String lang = null;
#Override
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setTitle("Lastsäkring");
Bundle bundle = this.getIntent().getExtras();
lang = bundle.getString("lang");
Log.i("ParsingXML", "Chosen language: " + this.lang + ", Type: " + this.lang.getClass().getName());
TextView tv = new TextView(this);
try {
SAXParserFactory spf = SAXParserFactory.newInstance();
SAXParser sp = spf.newSAXParser();
XMLReader xr = sp.getXMLReader();
ExampleHandler myExampleHandler = new ExampleHandler();
xr.setContentHandler(myExampleHandler);
/*
* If XML-file is located online (needs internet permissions in the manifest):
* URL url = new URL("http://dev.houdini.se/android/demo.xml");
* xr.parse(new InputSource(url.openStream()));
*/
if(this.lang.equals("en"))
xr.parse(new InputSource(this.getResources().openRawResource(R.raw.en_content)));
else
xr.parse(new InputSource(this.getResources().openRawResource(R.raw.sv_content)));
ParsedExampleDataSet parsedExampleDataSet = myExampleHandler.getParsedData();
this.setListAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, parsedExampleDataSet.toArrayList()));
} catch(Exception e) {
tv.setText("Error: " + e.getMessage());
Log.e(MY_DEBUG_TAG, "XmlParseError", e);
this.setContentView(tv);
}
}
protected void onListItemClick(ListView l, View v, int position, long id) {
super.onListItemClick(l, v, position, id);
Context context = getApplicationContext();
int duration = Toast.LENGTH_SHORT;
CharSequence text = "Clicked position: " + position + ", id: " + id;
Toast toast = Toast.makeText(context, text, duration);
toast.show();
/*switch( position )
{
case 0:
Bundle bundle = new Bundle();
bundle.putString("WindowTitle", "TESTA");
Intent intent = new Intent(this, TextPage.class);
intent.putExtras(bundle);
startActivity(intent);
break;
case 1:
Intent video = new Intent(this, Video.class);
startActivity(video);
break;
case 2:
Intent swipe = new Intent(this, Swipe.class);
startActivity(swipe);
break;
}*/
}
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.options_menu, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle item selection
switch (item.getItemId()) {
case R.id.settings:
Intent prefsActivity = new Intent(getBaseContext(), Preferences.class);
startActivity(prefsActivity);
return true;
default:
return super.onOptionsItemSelected(item);
}
}
}
ExampleHandler.java
public class ExampleHandler extends DefaultHandler {
private boolean in_chapters = false;
private boolean in_chapter = false;
private boolean in_page = false;
private ParsedExampleDataSet myParsedExampleDataSet = new ParsedExampleDataSet();
public ParsedExampleDataSet getParsedData() {
return this.myParsedExampleDataSet;
}
#Override
public void startDocument() throws SAXException {
this.myParsedExampleDataSet = new ParsedExampleDataSet();
}
#Override
public void endDocument() throws SAXException {
// Nothing to do
}
#Override
public void startElement(String namespaceURI, String localName, String qName, Attributes atts) throws SAXException {
if(localName.equals("chapters")) {
this.in_chapters = true;
} else if(localName.equals("chapter")) {
this.in_chapter = true;
String attrValue = atts.getValue("title");
myParsedExampleDataSet.setExtractedString(attrValue);
} else if(localName.equals("page")) {
this.in_page = true;
}
}
#Override
public void endElement(String namespaceURI, String localName, String qName) throws SAXException {
if(localName.equals("chapters")) {
this.in_chapters = false;
} else if(localName.equals("chapter")) {
this.in_chapter = false;
} else if(localName.equals("page")) {
this.in_page = false;
}
}
#Override
public void characters(char ch[], int start, int length) {
if(this.in_page == true) {
myParsedExampleDataSet.setExtractedString(new String(ch, start, length));
}
}
}
ParsedExampleDataSet.java
public class ParsedExampleDataSet {
private String extractedString = "";
private ArrayList<String> myArr = new ArrayList<String>();
private int extractedInt = 0;
public ArrayList<String> getExtractedString() {
//return extractedString; Function Type = String
return myArr;
}
public void setExtractedString(String extractedString) {
//this.extractedString += extractedString + "\n";
myArr.add(extractedString);
}
public int getExtractedInt() {
return extractedInt;
}
public void setExtractedInt(int extractedInt) {
this.extractedInt = extractedInt;
}
public String toString() {
return "NODER\n" + this.extractedString;
}
public ArrayList<String> toArrayList() {
return this.myArr;
}
}

First create proper data structure:
public class PageNode {
public String title;
public String url;
/* Getters/setter/constructor etc. if you feel like*/
public String toString() {
return title;
}
}
public class ChapterNode {
public String title;
public ArrayList<PageNode> pages = new ArrayList<PageNode>();
/* Getters/setter/constructor etc. if you feel like*/
}
And parse the xml accordingly. Example:
ArrayList<ChapterNode> chapters = new ArrayList<ChapterNode>();
ChapterNode chapterNode = null;
public void startElement(String namespaceURI, String localName, String qName, Attributes atts) throws SAXException {
if(localName.equals("chapters")) {
} else if(localName.equals("chapter")) {
chapterNode = new ChapterNode();
chapterNode.title = atts.getValue("title");
} else if(localName.equals("page")) {
PageNode pageNode = new PageNode();
pageNode.title = atts.getValue("title");
pageNode.url = atts.getValue("url");
chapterNode.pages.add(pageNode);
}
}
#Override
public void endElement(String namespaceURI, String localName, String qName) throws SAXException {
if(localName.equals("chapters")) {
} else if(localName.equals("chapter")) {
chapters.add(chapterNode);
chapterNode = null;
} else if(localName.equals("page")) {
}
}
Then you can access the pageNode like this:
PageNode pageNode = chapterNode.pages.get(position);
And set adapter like this:
this.setListAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, chapterNode.pages));

You have to check for boolean variables while chapter tag is true you have to add pages in one arraylist and when chapter tag is false you have to add that arraylist in another gloabl arraylist

(Without having looked at the example tutorial...)
Have a look at the Attributes parameter of startElement in your example handler. It should contain a value for "url" (it looks like you're only getting the value for "title").

I'm used to using DocumentBuilderFactory, so my solution is:
firstly, you should create ArrayHelper class like this:
public class ArrayHelper {
public static ArrayList<HashMap<String, ?>> list = new ArrayList<HashMap<String, ?>>();
}
than:
public class CoversParseTask extends AsyncTask<Void, Void, Boolean> {
#Override
protected void onPreExecute() {
}
#Override
protected Boolean doInBackground(Void ... arg0) {
try {
DocumentBuilderFactory dFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder dBuilder = dFactory.newDocumentBuilder();
document = dBuilder.parse(new InputSource(this.getResources().openRawResource(R.raw.en_content)));
document.getDocumentElement().normalize();
NodeList nodeListIssue = document.getElementsByTagName("page");
for (int i = 0; i < nodeListIssue.getLength(); i++) {
HashMap<String, Object> temp = new HashMap<String, Object>();
Node node = nodeListIssue.item(i);
Element elementMain = (Element) node;
String pageID = elementMain.getAttribute("title");
String issueID = elementMain.getAttribute("url");
temp.put("title", pageID);
temp.put("url", issueID);
ArrayHelper.list.add(temp);
}
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (ParserConfigurationException e) {
e.printStackTrace();
} catch (SAXException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
};
return false;
}
#Override
protected void onPostExecute(Boolean result) {
//what happend if done.
}
}
and execute this class like this:
new CoversParseTask().execute();
now we must create simple adapter:
SimpleAdapter adapter = new MySimpleAdapter(this, selectLastSearch(), R.layout.custom_row_view, new String[] { "Title", "Url" }, new int[] { R.id.title, R.id.url});
and our MySimpleAdapter looks like this:
public class MySimpleAdapter extends SimpleAdapter {
Context localcontext = null;
public MySimpleAdapter(Context context,List<? extends Map<String, ?>> data, int resource, String[] from, int[] to) {
super(context, data, resource, from, to);
localcontext = context;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View view = super.getView(position, convertView, parent);
return view;
}
}
noe set adapter to listview:
listview.setAdapter(adapter);
if You want to get URL from list, you should add listner to listview like this:
listview.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> adapter, View view,
int position, long arg) {
Log.v("URL", ArrayHelper.list.get(position).get("url").toString());
}
});
and thats all, i hope that i help you :)

Isolating a link in RSS Feed

I am new to programming so please go easy on me, I have been messing around with a simple RSS Reader, trying to get the link to the artice to open in a webview when the user clicks on the article.
I have found the string that controls and stores the link but when I try to print the link in the toast the link appears but with the whole article publishing date ect... how can I get the link to print on it own and what commands do I need to use to pass the link to the webview once I have isolated it, here is some of the code I have
RSSActivity
public class RssActivity extends ListActivity {
private RssListAdapter adapter;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
List<JSONObject> jobs = new ArrayList<JSONObject>();
try {
jobs = RssReader.getLatestRssFeed();
} catch (Exception e) {
Log.e("RSS ERROR", "Error loading RSS Feed Stream >> " + e.getMessage() + " //" + e.toString());
}
adapter = new RssListAdapter(this,jobs);
setListAdapter(adapter);
}
protected void onListItemClick(ListView l, View v, int position, long id) {
super.onListItemClick(l, v, position, id);
// Get the item that was clicked
Object o = this.getListAdapter().getItem(position);
adapter.getItem(position).toString();
String link = o.toString();
Toast.makeText(this, "You selected: " + link, Toast.LENGTH_LONG)
.show();
}
}
Article.class
public class Article {
private long articleId;
private long feedId;
private String title;
private String description;
private String pubDate;
private URL url;
private String encodedContent;
private String link;
public void setArticleId(long articleId) {
this.articleId = articleId;
}
/**
* #return the feedId
*/
public long getFeedId() {
return feedId;
}
/**
* #param feedId the feedId to set
*/
public void setFeedId(long feedId) {
this.feedId = feedId;
}
public String getLink() {
return link;
}
/**
* #param title the title to set
*/
public void setLink(String link) {
this.link = link;
}
/**
* #return the title
*/
public String getTitle() {
return title;
}
/**
* #param title the title to set
*/
public void setTitle(String title) {
this.title = title;
}
/**
* #return the url
*/
public URL getUrl() {
return url;
}
/**
* #param url the url to set
*/
public void setUrl(URL url) {
this.url = url;
}
/**
* #param description the description to set
*/
public void setDescription(String description) {
this.description = description;
//parse description for any image or video links
if (description.contains("<img ")){
String img = description.substring(description.indexOf("<img "));
String cleanUp = img.substring(0, img.indexOf(">")+1);
int indexOf = img.indexOf("'");
if (indexOf==-1){
}
this.description = this.description.replace(cleanUp, "");
}
}
/**
* #return the description
*/
public String getDescription() {
return description;
}
/**
* #param pubDate the pubDate to set
*/
public void setPubDate(String pubDate) {
this.pubDate = pubDate;
}
/**
* #return the pubDate
*/
public String getPubDate() {
return pubDate;
}
/**
* #param encodedContent the encodedContent to set
*/
public void setEncodedContent(String encodedContent) {
this.encodedContent = encodedContent;
}
/**
* #return the encodedContent
*/
public String getEncodedContent() {
return encodedContent;
}
}
RSS Handler
public class RSSHandler extends DefaultHandler {
// Feed and Article objects to use for temporary storage
private Article currentArticle = new Article();
private List<Article> articleList = new ArrayList<Article>();
// Number of articles added so far
private int articlesAdded = 0;
// Number of articles to download
private static final int ARTICLES_LIMIT = 15;
//Current characters being accumulated
StringBuffer chars = new StringBuffer();
public void startElement(String uri, String localName, String qName, Attributes atts) {
chars = new StringBuffer();
}
public void endElement(String uri, String localName, String qName) throws SAXException {
if (localName.equalsIgnoreCase("title"))
{
Log.d("LOGGING RSS XML", "Setting article title: " + chars.toString());
currentArticle.setTitle(chars.toString());
}
else if (localName.equalsIgnoreCase("description"))
{
Log.d("LOGGING RSS XML", "Setting article description: " + chars.toString());
currentArticle.setDescription(chars.toString());
}
else if (localName.equalsIgnoreCase("pubDate"))
{
Log.d("LOGGING RSS XML", "Setting article published date: " + chars.toString());
currentArticle.setPubDate(chars.toString());
}
else if (localName.equalsIgnoreCase("encoded"))
{
Log.d("LOGGING RSS XML", "Setting article content: " + chars.toString());
currentArticle.setEncodedContent(chars.toString());
}
else if (localName.equalsIgnoreCase("item"))
{
}
else if (localName.equalsIgnoreCase("link"))
{
Log.d("LOGGING RSS XML", "Setting article link: " + chars.toString());
currentArticle.setLink(chars.toString());
try {
Log.d("LOGGING RSS XML", "Setting article link url: " + chars.toString());
currentArticle.setUrl(new URL(chars.toString()));
} catch (MalformedURLException e) {
Log.e("RSA Error", e.getMessage());
}
}
// Check if looking for article, and if article is complete
if (localName.equalsIgnoreCase("item")) {
articleList.add(currentArticle);
currentArticle = new Article();
// Lets check if we've hit our limit on number of articles
articlesAdded++;
if (articlesAdded >= ARTICLES_LIMIT)
{
throw new SAXException();
}
}
}
public void characters(char ch[], int start, int length) {
chars.append(new String(ch, start, length));
}
public List<Article> getLatestArticles(String feedUrl) {
URL url = null;
try {
SAXParserFactory spf = SAXParserFactory.newInstance();
SAXParser sp = spf.newSAXParser();
XMLReader xr = sp.getXMLReader();
url = new URL(feedUrl);
xr.setContentHandler(this);
xr.parse(new InputSource(url.openStream()));
} catch (IOException e) {
Log.e("RSS Handler IO", e.getMessage() + " >> " + e.toString());
} catch (SAXException e) {
Log.e("RSS Handler SAX", e.toString());
} catch (ParserConfigurationException e) {
Log.e("RSS Handler Parser Config", e.toString());
}
return articleList;
}
}
public class RssReader {
private final static String BOLD_OPEN = "<B>";
private final static String BOLD_CLOSE = "</B>";
private final static String BREAK = "<BR>";
private final static String ITALIC_OPEN = "<I>";
private final static String ITALIC_CLOSE = "</I>";
private final static String SMALL_OPEN = "<SMALL>";
private final static String SMALL_CLOSE = "</SMALL>";
private final static String WEB_LINK = "<A>";
private final static String WEB_CLOSE = "<A/";
public static List<JSONObject> getLatestRssFeed(){
String feed = "http://newsrss.bbc.co.uk/rss/sportonline_uk_edition/football/eng_prem/rss.xml";
RSSHandler rh = new RSSHandler();
List<Article> articles = rh.getLatestArticles(feed);
Log.e("RSS ERROR", "Number of articles " + articles.size());
return fillData(articles);
}
private static List<JSONObject> fillData(List<Article> articles) {
List<JSONObject> items = new ArrayList<JSONObject>();
for (Article article : articles) {
JSONObject current = new JSONObject();
try {
buildJsonObject(article, current);
} catch (JSONException e) {
Log.e("RSS ERROR", "Error creating JSON Object from RSS feed");
}
items.add(current);
}
return items;
}
private static void buildJsonObject(Article article, JSONObject current) throws JSONException {
String link = article.getLink();
String title = article.getTitle();
String description = article.getDescription();
String date = article.getPubDate();
StringBuffer sb = new StringBuffer();
sb.append(BOLD_OPEN).append(title).append(BOLD_CLOSE);
sb.append(BREAK);
sb.append(description);
sb.append(BREAK);
sb.append(SMALL_OPEN).append(ITALIC_OPEN).append(date).append(ITALIC_CLOSE).append(SMALL_CLOSE);
sb.append(BREAK);
sb.append(BREAK);
sb.append(BOLD_OPEN).append(WEB_LINK).append(link).append(BOLD_CLOSE).append(WEB_CLOSE);
current.put("link", link);
current.put("text", Html.fromHtml(sb.toString()));
}
}
RssListAdapter
import java.util.List;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.text.Spanned;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.TextView;
public class RssListAdapter extends ArrayAdapter<JSONObject> {
public RssListAdapter(Activity activity, List<JSONObject> imageAndTexts) {
super(activity, 0, imageAndTexts);
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
Activity activity = (Activity) getContext();
LayoutInflater inflater = activity.getLayoutInflater();
// Inflate the views from XML
View rowView = inflater.inflate(R.layout.image_text_layout, null);
JSONObject jsonImageText = getItem(position);
//////////////////////////////////////////////////////////////////////////////////////////////////////
//The next section we update at runtime the text - as provided by the JSON from our REST call
////////////////////////////////////////////////////////////////////////////////////////////////////
TextView textView = (TextView) rowView.findViewById(R.id.job_text);
try {
Spanned text = (Spanned)jsonImageText.get("text");
textView.setText(text);
} catch (JSONException e) {
textView.setText("JSON Exception");
}
return rowView;
}
}

Open URL in default browser
Open URL with Android
If you have the URL or URI object at one point, probably one of the explanations in the links above will get you on your way.
--
Edit:
protected void onListItemClick(ListView l, View v, int position, long id) {
super.onListItemClick(l, v, position, id);
// Get the item that was clicked
Object o = this.getListAdapter().getItem(position);
adapter.getItem(position).toString();
String link = o.toString();
Toast.makeText(this, "You selected: " + link, Toast.LENGTH_LONG)
.show();
}
Guessing this is the code to show the link but if you don't supply us what the getListAdapter() method etc do then I'm afraid it's hard to help you out.

Try this
protected void onListItemClick(ListView l, View v, int position, long id) {
super.onListItemClick(l, v, position, id);
// Get the item that was clicked
JSONObject o = (JSONObject) this.getListAdapter().getItem(position);
adapter.getItem(position).toString();
String link = o.getString("NameOfLinkInJsonObject");
Toast.makeText(this, "You selected: " + link, Toast.LENGTH_LONG)
.show();
mMyWebView.loadUrl(link);
}
Be aware that you need to fix "NameOfLinkInJsonObject".
In your activity add a field like so
private WebView mMyWebView;
In your onCreate method add a
mMyWebView = (WebView) findViewById(R.id.webViewId);
You will have to change the R.id.webViewId to the appropriate id for your web view.

Develop Reference

Java is a programming language and computing platform first released by Sun Microsystems in 1995.

extract the images from rss feed - java

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