Develop Reference

Downloading images from a link displaying them in a listview

I have a list where for each item i need to display a image. I am downloading the image from a link and displaying it but with i am facing problems to display them as the list gets populated by text first and then downloads the images later.Also another problem is whenever i go up or down in the list image disappears and download again so the images are gone when i come to to the top the list items
EventTask
public RecieveEventsTask(EventListActivity c, String critiria) {
appContext = c;
session = new SessionManager(appContext);
HashMap<String, String> user = session.getUserDetails();
String id = user.get(SessionManager.KEY_ID);
url = "http://bioscopebd.com/mobileappand/geteventlist?user_id=" + id;
}
public RecieveEventsTask(MyEventList c, String critiria) {
my_appContext = c;
session = new SessionManager(my_appContext);
HashMap<String, String> user = session.getUserDetails();
// id
String id = user.get(SessionManager.KEY_ID);
url = "http://bioscopebd.com/mobileappand/getmyeventlist?user_id=" + id;
}
protected void onPreExecute() {
dialog = new ProgressDialog(appContext == null ? my_appContext
: appContext);
dialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
dialog.setMessage("Loading Events...");
dialog.show();
super.onPreExecute();
}
String filterResponseString(String r) {
return r.replace("\r\n", "");
}
#Override
protected String doInBackground(String... uri) {
HttpClient httpclient = new DefaultHttpClient();
HttpResponse response;
try {
response = httpclient.execute(new HttpGet(url));
StatusLine statusLine = response.getStatusLine();
if (statusLine.getStatusCode() == HttpStatus.SC_OK) {
ByteArrayOutputStream out = new ByteArrayOutputStream();
response.getEntity().writeTo(out);
out.close();
responseString = out.toString();
responseString = filterResponseString(responseString);
} else {
// Closes the connection.
response.getEntity().getContent().close();
Utility.showMessage(appContext, "Cannot Connect To Internet");
}
} catch (Exception e) {
// TODO Handle problems..
}
return responseString;
}
#Override
protected void onPostExecute(String result) {
dialog.dismiss();
if (responseString != null) {
ArrayList<EventModel> eventsList = new ArrayList<EventModel>();
;
JSONArray jsonArr;
try {
// Log.v("json", responseString);
jsonArr = new JSONArray(responseString);
// jsonArr = events.getJSONArray("events");
for (int i = 0; i < jsonArr.length(); i++) {
JSONObject jsonObj = jsonArr.getJSONObject(i);
EventModel event = new EventModel();
event.setTitle(jsonObj.getString("event_info_title"));
event.setDescription(jsonObj.getString("event_info_desc"));
// Log.v("logo data "+i, jsonObj.getString("image_logo"));
event.setBanner(jsonObj.getString("image_banner"));
event.setLogo(jsonObj.getString("image_logo"));
// event.setDescription(jsonObj.getString("event_info_desc"));
event.setCategory(jsonObj.getString("event_cat_title"));
event.setStartDate(jsonObj
.getString("event_info_start_date"));
event.setEndDate(jsonObj.getString("event_info_end_date"));
event.setStartTime(jsonObj
.getString("event_info_start_time"));
event.setEndTime(jsonObj.getString("event_info_end_time"));
event.setEventId(jsonObj.getString("event_info_id"));
event.setPhone(jsonObj.getString("event_info_mobile"));
event.setEmail(jsonObj.getString("event_info_email"));
event.setWeblink(jsonObj.getString("event_info_web"));
//
// logoDownloader = new ImageDownloader(event.getLogoBitmap());
// logoDownloader.execute(event.getLogo());
//
// bannerDownloader = new ImageDownloader(event.getBannerBitmap());
// bannerDownloader.execute(event.getBanner());
//
eventsList.add(event);
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
if (appContext != null) {
appContext.showEventsDataLoaded(eventsList);
}
if (my_appContext != null) {
my_appContext.showEventsDataLoaded(eventsList);
}
// else
// {
// Log.v("check:","null");
//
// }
//
} else {
if(appContext!=null)
{
Utility.showMessage(appContext, "Cannot Connect To Internet");
}
else {
Utility.showMessage(my_appContext, "Cannot Connect To Internet");
}
//
}
super.onPostExecute(result);
// Do anything with response..
}
i get the image link in my setlogo and setbanner method
Adapter class
private final Activity context;
private final ArrayList<EventModel> events;
ImageDownloader imgDownloader;
Bitmap bitmap;
ImageView icon;
public EventsListAdapter(Activity context, ArrayList<EventModel> events) {
super(context, com.bioscope.R.layout.event_listitem, events);
this.context = context;
this.events = events;
}
#Override
public View getView(int position, View view, ViewGroup parent) {
LayoutInflater inflater = context.getLayoutInflater();
View rowView = inflater.inflate(com.bioscope.R.layout.event_listitem,
null, true);
TextView title = (TextView) rowView
.findViewById(com.bioscope.R.id.title);
title.setText(events.get(position).getTitle());
TextView description = (TextView) rowView
.findViewById(com.bioscope.R.id.description);
description.setText(events.get(position).getDescription());
TextView category = (TextView) rowView
.findViewById(com.bioscope.R.id.category);
category.setText(events.get(position).getCategory());
Log.v("logo", events.get(position).getLogo());
icon = (ImageView) rowView
.findViewById(com.bioscope.R.id.event_icon);
//imgDownloader = new ImageDownloader(icon);
new LoadImage().execute(events.get(position).getLogo());
//ImageLoader.displayImage(events.get(position).getLogo().toString(), icon);
return rowView;
}
private class LoadImage extends AsyncTask<String, String, Bitmap> {
#Override
protected void onPreExecute() {
super.onPreExecute();
// pDialog = new ProgressDialog(MainActivity.this);
// pDialog.setMessage("Loading Image ....");
// pDialog.show();
}
protected Bitmap doInBackground(String... args) {
try {
bitmap = BitmapFactory.decodeStream((InputStream)new URL(args[0]).getContent());
} catch (Exception e) {
e.printStackTrace();
}
return bitmap;
}
protected void onPostExecute(Bitmap image) {
if(image != null){
icon.setImageBitmap(image);
//pDialog.dismiss();
}else{
//pDialog.dismiss();
// Toast.makeText(EventListActivity.this, "Image Does Not exist or Network Error", Toast.LENGTH_SHORT).show();
// icon.set
}
}
}
}
i am setting the image in my icon of list items
Activity class
private ListView list;
private MenuItem myActionMenuItem;
private EditText myActionEditText;
private TextView myActionTextView;
private AutoCompleteTextView actv;
// private Spinner spinner;
private Button liveEvent;
private ArrayList<EventModel> eventsList;
private static final String[] paths = { "All", "Favourites" };
private ArrayList<String> array_sort;
int textlength = 0;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(com.bioscope.R.layout.eventlist);
RecieveEventsTask task = new RecieveEventsTask(this, "all");
task.execute();
}
public void showEventsDataLoaded(ArrayList<EventModel> eventsList) {
this.eventsList = eventsList;
// for(EventModel e:eventsList )
// {
// Log.v("title", e.getTitle());
// }
EventsListAdapter adapter = new EventsListAdapter(
EventListActivity.this, eventsList);
list = (ListView) findViewById(com.bioscope.R.id.listView1);
list.setAdapter(adapter);
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
// TODO Auto-generated method stub
// Toast.makeText(EventList.this, "You Clicked an item ",
// Toast.LENGTH_SHORT).show();
showEventInformaion(position);
}
});
// RecieveCategoriesTask task = new RecieveCategoriesTask(this, "all");
// task.execute();
liveEvent = (Button) findViewById(R.id.liveEvent);
liveEvent.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
Intent i = new Intent(EventListActivity.this,
LiveEventActivity.class);
startActivity(i);
}
});
}
public void showCategoryListDataLoaded(String response) {
Utility.showMessage(this, response);
}
Then in my activity i called the async reciver task to load all the data along with link and gave set them in my model class.

You haveto set ResponseCache in your Main class while downloading bitmap:
Like this:
try {
File httpCacheDir = new File(getApplicationContext().getCacheDir(), "http");
long httpCacheSize = 10 * 1024 * 1024; // 10 MiB
HttpResponseCache.install(httpCacheDir, httpCacheSize);
} catch (IOException e) { }
and
connection.setUseCaches(true);
http://practicaldroid.blogspot.com/2013/01/utilizing-http-response-cache.html

Friends profile picture is not matching with the profile name for facebook in android

i am getting friends names,birthdays and profile pictures from Facebook.and I am displaying in listview but profile pictures is not matching with there names.
I tried below code:
public void onComplete(String response, Object state) {
Log.v("", "FriendListRequestONComplete");
friendData = response;
Log.v("friendData--", ""+friendData);
//Create method to run on UI thread
MainActivity.this.runOnUiThread(new Runnable() {
#SuppressLint("NewApi")
public void run() {
try {
//Parse JSON Data
// pick(userID);
JSONObject json;
//json = Util.parseJson(friendData);
json = new JSONObject(friendData);
//Get the JSONArry from our response JSONObject
friendArray = json.getJSONArray("data");
Log.v("friendArray--", ""+friendArray);
for(i = 0; i< friendArray.length(); i++)
{
frnd_obj = friendArray.getJSONObject(i);
try{
friends.add("Name:"+frnd_obj.getString("name")+"\n"+"DOB:"+frnd_obj.getString("birthday"));
String userProfileID=frnd_obj.getString("id");
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
new DownloadImageTask(img).executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, "https://graph.facebook.com/"+userProfileID+"/picture?type=small");
} else{
new DownloadImageTask(img).execute("https://graph.facebook.com/"+userProfileID+"/picture?type=small");
}
}
catch(Exception e){
//friends.add("Name:"+frnd_obj.getString("name"));
}
}list1.setAdapter(new lsAdapter(MainActivity.this));
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (FacebookError e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
For load profile Pictures Asyntask:
private class DownloadImageTask extends AsyncTask<String, Void, Bitmap> {
private ProgressDialog mDialog;
private ImageView bmImage;
// Bitmap mIcon11 = null;
public DownloadImageTask(ImageView bmImage) {
this.bmImage = bmImage;
}
protected void onPreExecute() {
mDialog = ProgressDialog.show(MainActivity.this,"Please wait...", "Retrieving data ...", true);
mDialog.show();
}
protected Bitmap doInBackground(String... urls) {
Log.d("image", "do in");
String urldisplay = urls[0];
try {
Log.d("image", "do 1");
InputStream in = new java.net.URL(urldisplay).openStream();
mIcon11 = BitmapFactory.decodeStream(in);
Log.d("image", "do 2");
} catch (Exception e) {
Log.e("Error", "image download error");
Log.e("Error", e.getMessage());
// mIcon11=BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher);
e.printStackTrace();
Log.d("image", "do catch");
}
Log.d("image", "do out");
return mIcon11;
}
protected void onPostExecute(Bitmap result) {
//set image of your imageview
Log.d("image", "post");
// bmImage.setImageResource(R.drawable.ic_launcher);
bmImage.setImageBitmap(null);
bmImage.setVisibility(View.INVISIBLE);
bmImage.setImageBitmap(result);
if(result!=null){
//Toast.makeText(getApplicationContext(), "success", 5000).show();
mIcon11=result;
}else {
//Toast.makeText(getApplicationContext(), "Not success", 5000).show();
mIcon11=BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher);
}
// bmImage.setImageBitmap(mIcon11);
bitmapArray.add(mIcon11);
mDialog.dismiss();
//close
//mDialog.dismiss();
}
}
This is BaseAdapter class:
class lsAdapter extends BaseAdapter{
Context context;
public lsAdapter(Context c){
context=c;
}
#Override
public int getCount() {
// TODO Auto-generated method stub
//return friends.size();
return bitmapArray.size();
}
#Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return position;
}
#Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
#Override
public View getView(int position, View v, ViewGroup group) {
// TODO Auto-generated method stub
LayoutInflater inflater=(LayoutInflater)getSystemService(LAYOUT_INFLATER_SERVICE);
View vi=inflater.inflate(R.layout.customlist, null);
ImageView iv=(ImageView)vi.findViewById(R.id.iv);
ImageView next=(ImageView)vi.findViewById(R.id.nextimg);
TextView tv=(TextView)vi.findViewById(R.id.tv);
//iv.setImageURI(friendArray.getJSONObject(i).getString("id"));
tv.setText(friends.get(position));
iv.setImageBitmap(bitmapArray.get(position));
return vi;
}
}
Please help me.to get friends profile picture with there correct names.

It seems that you're just adding to the bitmapArray in onPostExecute. But since the ImageDownloadTasks are executed asynchronously, there's no guaranteed order to when onPostExecute will run (an image added later could finish loading earlier). This is probably why you're seeing the random ordering.
Instead of just a bitmapArray, try using a HashMap, with the key being the "id", and the value being the bitmap. Then you can do a lookup in your adapter based on the user id. Alternatively, when you create the ImageDownloadTask, assign it a position, and set the bitmap in the correct position in the array.

Android :showing progress dialog

I am making an android application that gets updated. For this I need a simple function that can download a file and show the current progress in a ProgressDialog. I know how to do the download the file, but I'm not sure how to display the current progress.I am using the following method for downloading images.
public Bitmap DownloadFile(String url){
URL myFileUrl;
Bitmap bitmap=null;
try {
myFileUrl = new URL(imageUrl);
HttpURLConnection conn= (HttpURLConnection)myFileUrl.openConnection();
conn.setDoInput(true);
conn.setConnectTimeout(10000);
conn.setReadTimeout(10000);
conn.connect();
InputStream is = conn.getInputStream();
bmImg = BitmapFactory.decodeStream(is);
bitmap = BitmapFactory.decodeStream((InputStream) new URL(
imageUrl).getContent());
bitmap = Bitmap.createScaledBitmap(bitmap,80 , 80, true);
System.out.println("name of butmap"+bitmap.toString());
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return bitmap;
}
And following is my async task class :
public class BackgroundAsyncTask extends AsyncTask<String, Integer, Bitmap> {
int myProgress;
#Override
protected void onPostExecute(Bitmap result) {
dialog.dismiss();
iv.setVisibility(View.VISIBLE);
iv.setImageBitmap(result);
System.out.println("bbbbbbbbb");
System.out.println("post execute");
}
#Override
protected void onPreExecute() {
System.out.println("pre execute");
dialog = ProgressDialog.show(ProfileNormalUserPhotos.this, "Loading...", "Please wait...");
}
#Override
protected Bitmap doInBackground(String...paths) {
System.out.println(imageUrl+" imageurl");
return DownloadFile(imageUrl);
}
#Override
protected void onProgressUpdate(Integer... values) {
// TODO Auto-generated method stub
progressBar.setProgress(values[0]);
}
}
and i am calling the method in the following adapter class :
public class ImageAdapter extends BaseAdapter {
Context mContext;
public String[] stringOnTextView;
public ImageAdapter(Context c) {
mContext = c;
}
public ImageAdapter(Context Context,
String[] stringOnTextView) {
this.mContext=Context;
this.stringOnTextView=stringOnTextView;
}
public int getCount() {
return stringOnTextView.length;
}
public Object getItem(int position) {
return null;
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
View v = null;
if(convertView==null){
try{
{
LayoutInflater li = getLayoutInflater();
v = li.inflate(R.layout.icon, null);
TextView tv = (TextView)v.findViewById(R.id.text);
tv.setText("Profile Image "+(position+1));
iv= (ImageView)v.findViewById(R.id.image);
imageUrl = "http://ondamove.it/English/images/users/";
imageUrl=imageUrl+stringOnTextView[position];
new BackgroundAsyncTask().execute(imageUrl);
}
}catch (Exception e) {
e.printStackTrace();
System.out.println(e);
}
}
else
{
try{
v = convertView;}
catch(Exception e){
System.out.println(e);
}
}
return v;
}
}
I need to download 9 images but the problem i am facing is that it only shows the last image and progress dialog goes into infinite loop.
Can anyone tell me over how to resolve thios issue.
Thanks

I have already suggested you to use AsyncTask previously for your problems if you remember.
onPreExecute() - show proress dialog
doInBackground() - call your DownloadFile() method inside the doInBackground()
dismiss the progress dialog.
Go through this example and understand it and implement it in your way: AsyncTask with Progress Dialog

I got the solution by working on it and the following should be the solution for this:
class DownloadFileAsync extends AsyncTask<String, String, String>
{
int count;
URL myFileUrl;
ImageView imageview;
Bitmap bp;
public DownloadFileAsync(ImageView iv, URL uu)
{
this.imageview = iv;
this.myFileUrl = uu;
}
#Override
protected void onPreExecute()
{
super.onPreExecute();
showDialog(DIALOG_DOWNLOAD_PROGRESS);
}
#Override
protected String doInBackground(String... aurl)
{
for (int i = 0; i < aurl.length; i++)
System.out.println("----------" + i + "------" + aurl[i]);
try
{
HttpURLConnection conn = (HttpURLConnection) myFileUrl.openConnection();
conn.setConnectTimeout(10000);
conn.setReadTimeout(10000);
conn.connect();
InputStream is = conn.getInputStream();
bmImg = BitmapFactory.decodeStream(is);
bp = BitmapFactory.decodeStream((InputStream) (myFileUrl).getContent());
bp = Bitmap.createScaledBitmap(bp, 70, 70, true);
}
catch (Exception e)
{
System.out.println(e);
e.printstacktrace();
}
return null;
}
protected void onProgressUpdate(String... progress)
{
dialog.setProgress(Integer.parseInt(progress[0]));
}
#Override
protected void onPostExecute(String unused)
{
try
{
imageview.setImageBitmap(bp);
System.out.println("this is" + this);
// dialog.dismiss();
dismissDialog(DIALOG_DOWNLOAD_PROGRESS);
}
catch (Exception e)
{
System.out.println(e);
}
}
}

You have to use an AssyncTask to be able to easily communicate progress to the UI thread.
For the dialog, use ProgressDialog:
private void downloadFile(URL fileUrl) {
if (myProgressDialog == null) {
new DownloadFilesTask().execute(fileUrl);
myProgressDialog = ProgressDialog.show(this, "Downloading file " + fileUrl.toString(), "Wait patiently, your download is in progress.", true /*You wont have a time estimate*/, false /*Download cannot be canceled*/);
} else {
Log.e(LOG_TAG, "A download is already in progress");
}
}
private void hideDialog() {
if (myProgressDialog != null) {
myProgressDialog.cancel();
}
}
And for the AssycTask, use an inner class in your Activity:
private class DownloadFilesTask extends AsyncTask<URL, Integer, Boolean> {
protected Long doInBackground(URL... urls) {
// TODO Download file here
return true;
}
protected void onProgressUpdate(Integer... progress) {
// TODO nothing to do here, you don't have download details
}
protected void onPostExecute(Boolean result) {
MyActivity.this.hideProgressDialog();
}
}

ok, i see 2 potential problems here ..
you have to use holder kind of structure for your adapter.
in asyncTask, the imageView, should be different for each item in the listView. basically, you have to pass imageView as an argument to asyncTask.
I changed your adapter, have a look at it.
static class ViewHolder {
TextView tv;
ImageView iv;
}
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder vh;
View v = null;
if(convertView==null){
vh = new ViewHolder();
LayoutInflater li = getLayoutInflater();
v = li.inflate(R.layout.icon, null);
vh.tv = (TextView)v.findViewById(R.id.text);
vh.iv= (ImageView)v.findViewById(R.id.image);
v.setTag(vh);
}
else
{
vh = (ViewHolder) convertView.getTag();
v = convertView;
}
vh.tv.setText("Profile Image "+(position+1));
imageUrl = "http://ondamove.it/English/images/users/";
imageUrl=imageUrl+stringOnTextView[position];
new BackgroundAsyncTask(vh.iv).execute(imageUrl);
return v;
}
And also the asyncTask here. I made a constructor and passed imageView as argument.
public class BackgroundAsyncTask extends AsyncTask<String, Integer, Bitmap> {
int myProgress;
ImageView iv;
public BackgroundAsyncTask (ImageView imageView) {
iv = imageView;
}
#Override
protected void onPostExecute(Bitmap result) {
dialog.dismiss();
iv.setVisibility(View.VISIBLE);
iv.setImageBitmap(result);
System.out.println("bbbbbbbbb");
System.out.println("post execute");
}
#Override
protected void onPreExecute() {
System.out.println("pre execute");
dialog = ProgressDialog.show(ProfileNormalUserPhotos.this, "Loading...", "Please wait...");
}
#Override
protected Bitmap doInBackground(String...paths) {
System.out.println(imageUrl+" imageurl");
return DownloadFile(imageUrl);
}
#Override
protected void onProgressUpdate(Integer... values) {
// TODO Auto-generated method stub
progressBar.setProgress(values[0]);
}
}
but i still can't guarantee the solution to infinite loop, but it is always good to fix some other problems :)
HTH.

Android: Custom ListView and Threading problem

I'm working on a small project on Android and have a serious problem with implementing some multi-threading into my solution. Below is a class that is an activity inside the tab of the main interface, which displays a custom list with pictures and data downloaded from YouTube API.
The class works fine, but it completely blocks the UI when, first the data, and then the images are being loaded from the Internet. I know I need to implement some threading and I have tried various things, but I'm not quite sure which parts of the code I have to launch as separate threads. There's also a chance there is something fundamentally wrong with my code structure.
Ideally I'd like to have the UI shown to the user immediately after the application is launched with a progress dialog on top of it, while the textual data is being loaded from YouTube. Then the user should get control of the UI, while images are being loaded in another thread in the background.
public class VodsActivity extends ListActivity {
private LayoutInflater mInflater;
private Vector<RowData> data;
RowData rd;
//private Handler mHandler;
private ProgressDialog dialog;
//Generic names of custom ListView elements
private static String[] title;
private Vector<String> detail;
private Vector<String> status;
private Vector<String> imgurl;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.custom_list);
mInflater = (LayoutInflater) getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
title = getResources().getStringArray(R.array.yt_channels);
detail = new Vector<String>();
status = new Vector<String>();
imgurl = new Vector<String>();
//mHandler = new Handler();
//dialog = ProgressDialog.show(VodsActivity.this, "","Loading. Please wait...", true);
loadData();
displayData();
//dialog.dismiss();
}
private void loadData() {
String[] values = {"error", "error", "http://www.ephotobay.com/thumb/message-error.jpg" };
for (int i = 0; i < title.length; i++) {
values = getData(title[i]);
values[1] = getTodaysUploads(title[i]);
detail.add(i, values[0]);
status.add(i, values[1]);
imgurl.add(i, values[2]);
}
}
/*** This function gets total number of uploads and thumbnail url for the user from a single feed ***/
private String[] getData (String username) {
String[] result = new String[3];
String ytFeedUrl = "http://gdata.youtube.com/feeds/api/users/" + username + "?v=2";
InputStream inStream = null;
try {
inStream = OpenHttpConnection(ytFeedUrl);
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document dom = db.parse(inStream);
Element docEle = dom.getDocumentElement();
inStream.close();
NodeList nl = docEle.getElementsByTagName("entry");
if (nl != null && nl.getLength() > 0) {
for (int i = 0; i < nl.getLength(); i++) {
Element entry = (Element) nl.item(i);
Element thumbnail = (Element) entry.getElementsByTagName("media:thumbnail").item(0);
String thumbUrl = thumbnail.getAttribute("url");
Element feedLink = (Element) entry.getElementsByTagName("gd:feedLink").item(5);
String uploads = feedLink.getAttribute("countHint");
result[0] = uploads + " videos";
result[1] = ""; //not used here
result[2] = thumbUrl;
}
}
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (ParserConfigurationException e) {
e.printStackTrace();
} catch (SAXException e) {
e.printStackTrace();
}
finally {
//
}
return result;
}
/*** This function gets a number of today's uploads of the user ***/
private String getTodaysUploads (String username) {
String result = null;
String ytFeedUrl = "http://gdata.youtube.com/feeds/api/videos?author=" + username + "&time=today&v=2";
InputStream inStream = null;
try {
inStream = OpenHttpConnection(ytFeedUrl);
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document dom = db.parse(inStream);
Element docEle = dom.getDocumentElement();
inStream.close();
NodeList nl = docEle.getElementsByTagName("feed");
if (nl != null && nl.getLength() > 0) {
for (int i = 0; i < nl.getLength(); i++) {
Element entry = (Element) nl.item(i);
Element title = (Element)entry.getElementsByTagName("openSearch:totalResults").item(0);
result = title.getFirstChild().getNodeValue();
result += " new today";
}
}
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (ParserConfigurationException e) {
e.printStackTrace();
} catch (SAXException e) {
e.printStackTrace();
}
finally {
//
}
return result;
}
private void displayData () {
//Use vector instead of ArrayList for safe threading
data = new Vector<RowData>();
for (int i = 0; i < title.length; i++) { //Loop needs to be changed based on results
try {
rd = new RowData(i, title[i], detail.get(i), status.get(i));
} catch (Exception e) {
e.printStackTrace();
}
data.add(rd);
}
CustomAdapter adapter = new CustomAdapter (this, R.layout.custom_list_item, R.id.title, data);
setListAdapter(adapter);
getListView().setTextFilterEnabled(true);
}
private InputStream OpenHttpConnection(String strUrl) throws IOException {
InputStream inStream = null;
URL url = new URL(strUrl);
URLConnection conn = url.openConnection();
try {
HttpURLConnection httpConn = (HttpURLConnection) conn;
httpConn.setRequestMethod("GET");
httpConn.connect();
if (httpConn.getResponseCode() == HttpURLConnection.HTTP_OK) {
inStream = httpConn.getInputStream();
}
} catch (Exception ex) {
ex.printStackTrace();
}
return inStream;
}
//This is temporary
public void onListItemClick(ListView parent, View v, int position, long id) {
CustomAdapter adapter = (CustomAdapter) parent.getAdapter();
RowData row = adapter.getItem(position);
Builder builder = new AlertDialog.Builder(this);
builder.setTitle(row.mTitle);
builder.setMessage(row.mDetail + " -> " + position );
builder.setPositiveButton("ok", null);
builder.show();
}
//Private class RowData - holds details of CustomAdapter item
private class RowData {
protected int mId;
protected String mTitle;
protected String mDetail;
protected String mStatus;
RowData (int id, String title, String detail, String status) {
mId = id;
mTitle = title;
mDetail = detail;
mStatus = status;
}
#Override
public String toString() {
return mId + " " + mTitle + " " + mDetail + " " + mStatus;
}
}
//Custom Adapter for the custom list, overrides onView() method
private class CustomAdapter extends ArrayAdapter<RowData> {
public CustomAdapter(Context context, int resource, int textViewResourceId, List<RowData> objects) {
super (context, resource, textViewResourceId, objects);
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder = null;
TextView title = null;
TextView detail = null;
TextView status = null;
ImageView image = null;
RowData rowData = getItem(position);
//Reuse existing row views
if(convertView == null) {
convertView = mInflater.inflate(R.layout.custom_list_item, null);
holder = new ViewHolder(convertView);
convertView.setTag(holder);
}
holder = (ViewHolder) convertView.getTag();
title = holder.getTitle();
title.setText (rowData.mTitle);
detail = holder.getDetail();
detail.setText(rowData.mDetail);
status = holder.getStatus();
status.setText(rowData.mStatus);
//add if statements here for colors
image = holder.getImage();
/**** This loads the pictures ****/
BitmapFactory.Options bmOptions;
bmOptions = new BitmapFactory.Options();
bmOptions.inSampleSize = 1;
String imageUrl = imgurl.get(rowData.mId);
Bitmap bm = LoadImage(imageUrl, bmOptions);
image.setImageBitmap(bm);
return convertView;
}
//Load image from the URL
private Bitmap LoadImage(String url, BitmapFactory.Options options) {
Bitmap bitmap = null;
InputStream inStream = null;
try {
inStream = OpenHttpConnection(url);
bitmap = BitmapFactory.decodeStream(inStream, null, options);
inStream.close();
} catch (IOException ioex) {
ioex.printStackTrace();
}
return bitmap;
}
}
/*** Wrapper for row data ***/
private class ViewHolder {
private View mRow;
private TextView title = null;
private TextView detail = null;
private TextView status = null;
private ImageView image = null;
public ViewHolder (View row) {
mRow = row;
}
public TextView getTitle() {
if (title == null) {
title = (TextView) mRow.findViewById(R.id.title);
}
return title;
}
public TextView getDetail() {
if (detail == null) {
detail = (TextView) mRow.findViewById(R.id.detail);
}
return detail;
}
public TextView getStatus() {
if (status == null) {
status = (TextView) mRow.findViewById(R.id.status);
}
return status;
}
public ImageView getImage() {
if (image == null) {
image = (ImageView) mRow.findViewById(R.id.thumbnail);
}
return image;
}
}
}
Thanks a lot for any pointers.

Check out the AsyncTask. This will let you background your long-running processes while showing the UI.
Also, you can find good/official tutorial on Android threading here.

I ended up using standard java Thread to load the data from API in the background and created a separate class for loading images in separate threads as well. In case you're wondering it now looks like this, and seem to work fine.
Loading the data:
public void onCreate(...) {
//...
mHandler = new Handler();
dialog = ProgressDialog.show(VodsActivity.this, "","Loading. Please wait...", true);
getData.start();
}
private Thread getData = new Thread() {
public void run() {
try {
loadData();
mHandler.post(showData);
} catch (Exception ex) {
ex.printStackTrace();
}
}
};
private Runnable showData = new Runnable() {
public void run() {
try {
displayData();
dialog.dismiss();
} catch (Exception ex) {
ex.printStackTrace();
}
}
};
Loading images (in CustomAdapter):
String imageUrl = imgurl.get(rowData.mId);
final ImageView image = holder.getImage();
//Reuse downloaded images or download new in separate thread
image.setTag(imageUrl);
Drawable cachedImage = imageLoader.loadDrawable(imageUrl, new ImageCallback() {
public void imageLoaded(Drawable imageDrawable, String imageUrl) {
ImageView imageViewByTag = (ImageView) image.findViewWithTag(imageUrl);
if (imageViewByTag != null) {
imageViewByTag.setImageDrawable(imageDrawable);
}
}
});
image.setImageDrawable(cachedImage);
ImageLoader class:
public class ImageLoader {
private HashMap<String, SoftReference<Drawable>> imageCache;
private static final String TAG = "ImageLoader";
public ImageLoader() {
imageCache = new HashMap<String, SoftReference<Drawable>>();
}
//Loads image from the cache if it exists or launches new thread to download it
public Drawable loadDrawable(final String imageUrl, final ImageCallback imageCallback) {
Log.d(TAG, "loadDrawable(" + imageUrl + ")");
if (imageCache.containsKey(imageUrl)) {
SoftReference<Drawable> softReference = imageCache.get(imageUrl);
Drawable drawable = softReference.get();
if (drawable != null) {
return drawable;
}
}
final Handler handler = new Handler() {
#Override
public void handleMessage(Message message) {
imageCallback.imageLoaded((Drawable) message.obj, imageUrl);
}
};
new Thread() {
#Override
public void run() {
Drawable drawable = loadImageFromUrl(imageUrl);
imageCache.put(imageUrl, new SoftReference<Drawable>(drawable));
Message message = handler.obtainMessage(0, drawable);
handler.sendMessage(message);
}
}.start();
return null;
}
//Downloads image from the url
public static Drawable loadImageFromUrl(String url) {
Log.d(TAG, "loadImageFromUrl(" + url + ")");
InputStream inputStream;
try {
inputStream = new URL(url).openStream();
} catch (IOException e) {
throw new RuntimeException(e);
}
return Drawable.createFromStream(inputStream, "src");
}
public interface ImageCallback {
public void imageLoaded(Drawable imageDrawable, String imageUrl);
}
}

Http image parsing problem

I'm trying to set different images by parsing, but I can set only last image. I don't know where the problem is in this code:
public class GridActivity extends Activity{
private EfficientAdapter adap;
String strUrl;
AddAlbumDetailBean aBean;
XmlParser parser;
ArrayList<Object> result;
ArrayList<Object> data;
ImageButton btnAdd;
private Context context;
static Bitmap bitmap;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
Utils.onActivityCreateSetTheme(this);
setContentView(R.layout.photos_activity);
GridView gView = (GridView)findViewById(R.id.gridview);
adap = new EfficientAdapter(this);
gView.setAdapter(adap);
/*btnAdd = (ImageButton)findViewById(R.id.btnAddPhotos);
btnAdd.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
startActivity(new Intent(GridActivity.this,AddAlbum.class));
}
});
*/
}
public static class EfficientAdapter extends BaseAdapter {
private LayoutInflater mInflater;
private Context context;
String strUrl;
AddAlbumDetailBean aBean;
XmlParser parser;
ArrayList<Object> result;
public EfficientAdapter(Context context) {
// Cache the LayoutInflate to avoid asking for a new one each time.
mInflater = LayoutInflater.from(context);
this.context = context;
String userId = ConstantData.user_id;
String albumId = ConstantData.album_id;
int pageNo = 1;
int limit = 20;
try {
DefaultHttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost("http://192.168.5.10/ijoomer_development/index.php?option=com_ijoomer&plg_name=jomsocial&pview=album&ptask=photo_paging&userid="+ ConstantData.user_id +"&sessionid="+ ConstantData.session_id +"&tmpl=component&albumid="+ ConstantData.album_id +"&pageno=1&limit=20");
StringBuffer strBuffer = new StringBuffer("<data><userid>" + userId + "</userid><albumid>" + albumId + "</albumid><pageno>" + pageNo +"</pageno><limit>"+ limit +"</limit></data>");
StringEntity strEntity = new StringEntity(strBuffer.toString());
post.setEntity(strEntity);
HttpResponse response = client.execute(post);
InputStream in = response.getEntity().getContent();
String strResponse = convertStreamToString(in);
parser = new XmlParser(in, new AddAlbumDetailBean());
result = parser.parse("data", "data");
String startThumb ="<thumb>";
String endThumb = "</thumb>";
String startUrl = "<url>";
String endUrl = "</url>";
if (startThumb.equalsIgnoreCase("<thumb>") && endThumb.equalsIgnoreCase("</thumb>"))
{
int startT = strResponse.indexOf(startThumb);
int endT = strResponse.indexOf(endThumb);
Log.i("startThumb", ""+startT);
Log.i("endThumb", ""+endT);
String OldThumb = strResponse.substring(startT, endT);
int startUrlindex = OldThumb.indexOf(">");
String thumb = OldThumb.substring(startUrlindex + 1).trim();// getting Url from webservice
Log.i("Thu0mb", ""+thumb);
URL newurl = new URL(thumb);
bitmap = BitmapFactory.decodeStream(newurl.openConnection() .getInputStream());// converting Url into Bitmap but dont know how to use bitmap array here
Log.d("Bitmap in ConstantData", ""+bitmap);
}
if (startUrl.equalsIgnoreCase("<url>") && endUrl.equalsIgnoreCase("</url>"))
{
int startL = strResponse.indexOf(startUrl);
int endL = strResponse.indexOf(endUrl);
Log.i("startUrl", ""+startL);
Log.i("endUrl", ""+endL);
String OldUrl = strResponse.substring(startL, endL);
int startUrlindex = OldUrl.indexOf(">");
String url = OldUrl.substring(startUrlindex + 1).trim();
}
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (ClientProtocolException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public View getView(final int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
convertView = mInflater.inflate(R.layout.icon, null);
holder = new ViewHolder();
holder.iconImage = (ImageView) convertView.findViewById(R.id.icon_image);
convertView.setOnClickListener(new OnClickListener() {
private int pos = position;
#Override
public void onClick(View v) {
Toast.makeText(context, "Click-" + String.valueOf(pos), Toast.LENGTH_SHORT).show();
context.startActivity(new Intent(context,GridActivity.class));
}
});
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
Log.d("Bitmap in ConstantData", ""+bitmap);
holder.iconImage.setImageBitmap(bitmap);
return convertView;
}
static class ViewHolder {
ImageView iconImage;
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return 5; // if i m trying to return result.size(); getting error and returning 5 i can only get 5 images
}
#Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return null;
}
#Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return 0;
}
}
public static String convertStreamToString(InputStream in)
throws IOException {
if (in != null) {
Writer writer = new StringWriter();
char[] buffer = new char[1024];
try {
Reader reader = new BufferedReader(
new InputStreamReader(in, "UTF-8"));
int n;
while ((n = reader.read(buffer)) != -1) {
writer.write(buffer, 0, n);
}
} finally {
// in.close();
}
return writer.toString();
} else {
return "";
}
}
}
Through this code i am trying to set image into the dynamic gridview using adapter....
but i can set only last image into the gridview so i dont know how to use bitmap array

There are a lot of problems on your code:
your bitmap is static, so you overriding it...
you have no loop, so you have only the same bitmap "parsed"
(after that I stopped looking)
Try to clean up your code and try to debug step by step so that you understand what your code does...
update:
some tips:
use AsyncTask to request the XML and parse it there
when finished fill the adapter with the parsed image urls