Develop Reference

Saving/Storeing an external image into SQLite Database

I have a book-App, where I scan a book with barcodescanner and retrieving the information from googlebooksapi.
At the moment I can save the general bookinfos, title, author, date, rating and shelf (where i want to display the book) in my SQLite database
Now I want to save the bookcover, which comes with the googleapi, too.
Can you tell me how I can save the image in my SQlite Database. By looking for solution I realized that I have to blob the image. but I dont know how.
Following my activties.
ScanActivity.java -> at the end of the code, I save the book data into sql db
public class ScanActivity extends AppCompatActivity implements OnClickListener {
private Button scanBtn, previewBtn, linkBtn, addBookBtn, librarybtn;
public TextView authorText, titleText, descriptionText, dateText, ratingCountText;
public EditText shelfText;
private LinearLayout starLayout;
private ImageView thumbView;
private ImageView[] starViews;
private Bitmap thumbImg;
public BookDBHelper bookDBHelper;
public SQLiteDatabase sqLiteDatabase1;
public Context context1 = this;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_scan);
//Fonts
Typeface myTypeface = Typeface.createFromAsset(getAssets(), "Lobster.ttf");
Button myButtonViewScan = (Button) findViewById(R.id.scan_button);
myButtonViewScan.setTypeface(myTypeface);
TextView myWheretoSaveTextView = (TextView) findViewById(R.id.textView_wheretosave);
myWheretoSaveTextView.setTypeface(myTypeface);
//Scanbutton
scanBtn = (Button) findViewById(R.id.scan_button);
scanBtn.setOnClickListener(this);
//Preview Button
previewBtn = (Button) findViewById(R.id.preview_btn);
previewBtn.setVisibility(View.GONE);
previewBtn.setOnClickListener(this);
//Weblink Button
linkBtn = (Button) findViewById(R.id.link_btn);
linkBtn.setVisibility(View.GONE);
linkBtn.setOnClickListener(this);
/* //AddBookBtn
addBookBtn= (Button)findViewById(R.id.btn_savebook);
addBookBtn.setVisibility(View.GONE);
addBookBtn.setOnClickListener(this);
//LibraryButton
librarybtn = (Button) findViewById(R.id.btn_maps);
librarybtn.setVisibility(View.GONE);
librarybtn.setOnClickListener(this);
*/
authorText = (TextView) findViewById(R.id.book_author);
titleText = (TextView) findViewById(R.id.book_title);
descriptionText = (TextView) findViewById(R.id.book_description);
dateText = (TextView) findViewById(R.id.book_date);
starLayout = (LinearLayout) findViewById(R.id.star_layout);
ratingCountText = (TextView) findViewById(R.id.book_rating_count);
thumbView = (ImageView) findViewById(R.id.thumb);
shelfText = (EditText) findViewById(R.id.editText_wheretosave);
starViews = new ImageView[5];
for (int s = 0; s < starViews.length; s++) {
starViews[s] = new ImageView(this);
}
starViews = new ImageView[5];
for (int s = 0; s < starViews.length; s++) {
starViews[s] = new ImageView(this);
}
}
public void onClick(View v) {
if (v.getId() == R.id.scan_button) {
IntentIntegrator scanIntegrator = new IntentIntegrator(this);
scanIntegrator.initiateScan();
} else if (v.getId() == R.id.link_btn) {
//get the url tag
String tag = (String) v.getTag();
//launch the url
Intent webIntent = new Intent(Intent.ACTION_VIEW);
webIntent.setData(Uri.parse(tag));
startActivity(webIntent);
} else if (v.getId() == R.id.preview_btn) {
String tag = (String) v.getTag();
Intent intent = new Intent(this, EmbeddedBook.class);
intent.putExtra("isbn", tag);
startActivity(intent);
//launch preview
}
}
public void onActivityResult(int requestCode, int resultCode, Intent intent) {
//retrieve result of scanning - instantiate ZXing object
IntentResult scanningResult = IntentIntegrator.parseActivityResult(requestCode, resultCode, intent);
//check we have a valid result
if (scanningResult != null) {
String scanContent = scanningResult.getContents();
//get format name of data scanned
String scanFormat = scanningResult.getFormatName();
previewBtn.setTag(scanContent);
if (scanContent != null && scanFormat != null && scanFormat.equalsIgnoreCase("EAN_13")) {
String bookSearchString = "https://www.googleapis.com/books/v1/volumes?" +
"q=isbn:" + scanContent + "&key=AIzaSyDminlOe8YitHijWd51n7-w2h8W1qb5PP0";
new GetBookInfo().execute(bookSearchString);
} else {
Toast toast = Toast.makeText(getApplicationContext(),
"Not a valid scan!", Toast.LENGTH_SHORT);
toast.show();
}
Log.v("SCAN", "content: " + scanContent + " - format: " + scanFormat);
} else {
//invalid scan data or scan canceled
Toast toast = Toast.makeText(getApplicationContext(),
"No book scan data received!", Toast.LENGTH_SHORT);
toast.show();
}
}
private class GetBookInfo extends AsyncTask<String, Void, String> {
#Override
protected String doInBackground(String... bookURLs) {
StringBuilder bookBuilder = new StringBuilder();
for (String bookSearchURL : bookURLs) {
HttpClient bookClient = new DefaultHttpClient();
try {
HttpGet bookGet = new HttpGet(bookSearchURL);
HttpResponse bookResponse = bookClient.execute(bookGet);
StatusLine bookSearchStatus = bookResponse.getStatusLine();
if (bookSearchStatus.getStatusCode() == 200) {
HttpEntity bookEntity = bookResponse.getEntity();
InputStream bookContent = bookEntity.getContent();
InputStreamReader bookInput = new InputStreamReader(bookContent);
BufferedReader bookReader = new BufferedReader(bookInput);
String lineIn;
while ((lineIn = bookReader.readLine()) != null) {
bookBuilder.append(lineIn);
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
return bookBuilder.toString();
}
protected void onPostExecute(String result) {
try {
previewBtn.setVisibility(View.VISIBLE);
JSONObject resultObject = new JSONObject(result);
JSONArray bookArray = resultObject.getJSONArray("items");
JSONObject bookObject = bookArray.getJSONObject(0);
JSONObject volumeObject = bookObject.getJSONObject("volumeInfo");
try {
titleText.setText(volumeObject.getString("title"));
} catch (JSONException jse) {
titleText.setText("");
jse.printStackTrace();
}
StringBuilder authorBuild = new StringBuilder("");
try {
JSONArray authorArray = volumeObject.getJSONArray("authors");
for (int a = 0; a < authorArray.length(); a++) {
if (a > 0) authorBuild.append(", ");
authorBuild.append(authorArray.getString(a));
}
authorText.setText(authorBuild.toString());
} catch (JSONException jse) {
authorText.setText("");
jse.printStackTrace();
}
try {
dateText.setText(volumeObject.getString("publishedDate"));
} catch (JSONException jse) {
dateText.setText("");
jse.printStackTrace();
}
try {
descriptionText.setText("DESCRIPTION: " + volumeObject.getString("description"));
} catch (JSONException jse) {
descriptionText.setText("");
jse.printStackTrace();
}
try {
double decNumStars = Double.parseDouble(volumeObject.getString("averageRating"));
int numStars = (int) decNumStars;
starLayout.setTag(numStars);
starLayout.removeAllViews();
for (int s = 0; s < numStars; s++) {
starViews[s].setImageResource(R.drawable.star);
starLayout.addView(starViews[s]);
}
} catch (JSONException jse) {
starLayout.removeAllViews();
jse.printStackTrace();
}
try {
ratingCountText.setText(volumeObject.getString("ratingsCount") + " ratings");
} catch (JSONException jse) {
ratingCountText.setText("");
jse.printStackTrace();
}
try {
boolean isEmbeddable = Boolean.parseBoolean
(bookObject.getJSONObject("accessInfo").getString("embeddable"));
if (isEmbeddable) previewBtn.setEnabled(true);
else previewBtn.setEnabled(false);
} catch (JSONException jse) {
previewBtn.setEnabled(false);
jse.printStackTrace();
}
try {
linkBtn.setTag(volumeObject.getString("infoLink"));
linkBtn.setVisibility(View.VISIBLE);
} catch (JSONException jse) {
linkBtn.setVisibility(View.GONE);
jse.printStackTrace();
}
try {
JSONObject imageInfo = volumeObject.getJSONObject("imageLinks");
new GetBookThumb().execute(imageInfo.getString("smallThumbnail"));
} catch (JSONException jse) {
thumbView.setImageBitmap(null);
jse.printStackTrace();
}
} catch (Exception e) {
e.printStackTrace();
titleText.setText("NOT FOUND");
authorText.setText("");
descriptionText.setText("");
dateText.setText("");
starLayout.removeAllViews();
ratingCountText.setText("");
thumbView.setImageBitmap(null);
previewBtn.setVisibility(View.GONE);
shelfText.setText("");
}
}
}
private class GetBookThumb extends AsyncTask<String, Void, String> {
#Override
protected String doInBackground(String... thumbURLs) {
try {
URL thumbURL = new URL(thumbURLs[0]);
URLConnection thumbConn = thumbURL.openConnection();
thumbConn.connect();
InputStream thumbIn = thumbConn.getInputStream();
BufferedInputStream thumbBuff = new BufferedInputStream(thumbIn);
thumbImg = BitmapFactory.decodeStream(thumbBuff);
thumbBuff.close();
thumbIn.close();
} catch (Exception e) {
e.printStackTrace();
}
return "";
}
protected void onPostExecute(String result) {
thumbView.setImageBitmap(thumbImg);
}
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
public void showMaps(View view) {
Intent intent = new Intent(this, MapsActivity.class);
startActivity(intent);
}
//HERE I SAVE THE RETRIEVED DATA
public void saveBook(View view) { //Click on save Book
String title = titleText.getText().toString();
String author = authorText.getText().toString();
String date = dateText.getText().toString();
String rating = ratingCountText.getText().toString();
String shelf = shelfText.getText().toString();
bookDBHelper = new BookDBHelper(context1);
sqLiteDatabase1 = bookDBHelper.getWritableDatabase();
bookDBHelper.addInformations(title, author, date, rating, shelf, sqLiteDatabase1);
Toast.makeText(getBaseContext(), "Data Saved", Toast.LENGTH_LONG).show();
bookDBHelper.close();
}
}
BookDBHelper.java
public class BookDBHelper extends SQLiteOpenHelper{
private static final String DATABASE_BOOKS_NAME = "BookINFO.DB";
private static final int DATABASE_BOOKS_VERS = 2;
private static final String CREATE_QUERY_BOOKS =
"CREATE TABLE "
+ BookContent.NewBookInfo.TABLE_NAME_BOOKS
+"("
+ BookContent.NewBookInfo.BOOK_ID + "INTEGER PRIMARY KEY, "
+ BookContent.NewBookInfo.BOOK_IMAGE +" BLOB, "
+ BookContent.NewBookInfo.BOOK_IMAGE_TAG +" TEXT, "
+ BookContent.NewBookInfo.BOOK_TITLE+" TEXT, "
+ BookContent.NewBookInfo.BOOK_AUTHOR+" TEXT, "
+ BookContent.NewBookInfo.BOOK_DATE+" TEXT, "
+ BookContent.NewBookInfo.BOOK_RATING+" TEXT, "
+ BookContent.NewBookInfo.BOOK_SHELF+" TEXT);";
public BookDBHelper(Context context){
super(context, DATABASE_BOOKS_NAME, null, DATABASE_BOOKS_VERS);
Log.e("DATABASE OPERATIONS", " DATABASE CREATED");
}
#Override
public void onCreate(SQLiteDatabase bookdb) {
bookdb.execSQL(CREATE_QUERY_BOOKS);
Log.e("DATABASE OPERATIONS", " DATABASE CREATED");
}
#Override
public void onUpgrade(SQLiteDatabase bookdb, int oldVersion, int newVersion) {
bookdb.execSQL(" DROP TABLE IS EXISTS " + BookContent.NewBookInfo.TABLE_NAME_BOOKS);
onCreate(bookdb);
}
public void addInformations( String booktitle, String bookauthor, String bookdate, String bookrating, String bookshelf, SQLiteDatabase bookdb)
{
ContentValues contentValues = new ContentValues();
contentValues.put(BookContent.NewBookInfo.BOOK_TITLE, booktitle);
contentValues.put(BookContent.NewBookInfo.BOOK_AUTHOR, bookauthor);
contentValues.put(BookContent.NewBookInfo.BOOK_DATE, bookdate);
contentValues.put(BookContent.NewBookInfo.BOOK_RATING, bookrating);
contentValues.put(BookContent.NewBookInfo.BOOK_SHELF, bookshelf);
bookdb.insert(BookContent.NewBookInfo.TABLE_NAME_BOOKS, null, contentValues);
Log.e("DATABASE OPERATIONS", "ON ROW INSERTED");
}
public Cursor getInformations(SQLiteDatabase bookdb){
Cursor cursor2;
String[] projections = {
BookContent.NewBookInfo.BOOK_TITLE,
BookContent.NewBookInfo.BOOK_AUTHOR,
BookContent.NewBookInfo.BOOK_DATE,
BookContent.NewBookInfo.BOOK_RATING,
BookContent.NewBookInfo.BOOK_SHELF};
cursor2 = bookdb.query(BookContent.NewBookInfo.TABLE_NAME_BOOKS, projections,null, null, null, null, null);
return cursor2;
}
Afterwards the infos will be displayed in a liestview.
BookDataListActivity
public class BookDataListActivity extends Activity {
public ListView booklistView;
private EditText inputSearch = null;
public SQLiteDatabase sqLiteDatabaseBooks = null;
public BookDBHelper bookDBHelper;
public Cursor cursor2;
public BookListDataAdapter bookListDataAdapter;
public final static String EXTRA_MSG1 = "title";
public final static String EXTRA_MSG2 = "author";
public final static String EXTRA_MSG3 = "date";
public final static String EXTRA_MSG4 = "rating";
public final static String EXTRA_MSG5 = "shelf";
public TextView editTextBooktitle;
public TextView editTextBookauthor;
public TextView editTextBookdate;
public TextView editTextBookrating;
public TextView editTextBookshelf;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.book_data_list_layout);
Typeface myTypeface = Typeface.createFromAsset(getAssets(), "Lobster.ttf");
TextView myTextView = (TextView) findViewById(R.id.text_yourbooks);
myTextView.setTypeface(myTypeface);
booklistView = (ListView) findViewById(R.id.book_list_view);
inputSearch = (EditText) findViewById(R.id.search_bar);
bookListDataAdapter = new BookListDataAdapter(getApplicationContext(), R.layout.row_book_layout);
booklistView.setAdapter(bookListDataAdapter);
//onItemClickListener
booklistView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
Intent intent = new Intent(getApplicationContext(), BookInfoActivity.class);
editTextBooktitle = (TextView) view.findViewById(R.id.text_book_title);
String book_title = editTextBooktitle.getText().toString();
intent.putExtra(EXTRA_MSG1, book_title);
editTextBookauthor = (TextView) view.findViewById(R.id.text_book_author);
String bookauthor = editTextBookauthor.getText().toString();
intent.putExtra(EXTRA_MSG2, bookauthor);
editTextBookdate = (TextView) view.findViewById(R.id.text_book_date);
String bookdate = editTextBookdate.getText().toString();
intent.putExtra(EXTRA_MSG3, bookdate);
editTextBookrating = (TextView) view.findViewById(R.id.text_book_rating);
String bookrating = editTextBookrating.getText().toString();
intent.putExtra(EXTRA_MSG4, bookrating);
editTextBookshelf = (TextView) view.findViewById(R.id.text_book_shelf);
String bookshelf = editTextBookshelf.getText().toString();
intent.putExtra(EXTRA_MSG5, bookshelf);
startActivity(intent);
}
});
bookDBHelper = new BookDBHelper(getApplicationContext());
sqLiteDatabaseBooks = bookDBHelper.getReadableDatabase();
cursor2 = bookDBHelper.getInformations(sqLiteDatabaseBooks);
if (cursor2.moveToFirst()) {
do {
String booktitle, bookauthor, bookdate, bookrating, bookshelf;
booktitle = cursor2.getString(0);
bookauthor = cursor2.getString(1);
bookdate = cursor2.getString(2);
bookrating = cursor2.getString(3);
bookshelf = cursor2.getString(4);
BookDataProvider bookDataProvider = new BookDataProvider(booktitle, bookauthor, bookdate, bookrating, bookshelf);
bookListDataAdapter.add(bookDataProvider);
} while (cursor2.moveToNext());
}
}
}
And I think you will need the DataAdapter
DataListDataAdapter
public class BookListDataAdapter extends ArrayAdapter implements Filterable{
List booklist = new ArrayList();
public SQLiteDatabase sqLiteDatabaseBooks;
public BookListDataAdapter(Context context,int resource) {
super(context, resource);
}
static class BookLayoutHandler {
TextView BOOKTITLE, BOOKAUTHOR, BOOKDATE, BOOKRATING, BOOKSHELF;
}
#Override
public void add (Object object){
super.add(object);
booklist.add(object);
}
#Override
public int getCount() {
return booklist.size();
}
#Override
public Object getItem(int position) {
return booklist.get(position);
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View row1= convertView;
BookLayoutHandler bookLayoutHandler;
if(row1 == null){
LayoutInflater layoutInflater = (LayoutInflater) this.getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
row1 = layoutInflater.inflate(R.layout.row_book_layout, parent, false);
bookLayoutHandler = new BookLayoutHandler();
bookLayoutHandler.BOOKTITLE = (TextView) row1.findViewById(R.id.text_book_title);
bookLayoutHandler.BOOKAUTHOR = (TextView) row1.findViewById(R.id.text_book_author);
bookLayoutHandler.BOOKDATE = (TextView) row1.findViewById(R.id.text_book_date);
bookLayoutHandler.BOOKRATING = (TextView) row1.findViewById(R.id.text_book_rating);
bookLayoutHandler.BOOKSHELF = (TextView) row1.findViewById(R.id.text_book_shelf);
row1.setTag(bookLayoutHandler);
}else{
bookLayoutHandler = (BookLayoutHandler) row1.getTag();
}
BookDataProvider bookDataProvider = (BookDataProvider) this.getItem(position);
bookLayoutHandler.BOOKTITLE.setText(bookDataProvider.getBooktitle());
bookLayoutHandler.BOOKAUTHOR.setText(bookDataProvider.getBookauthor());
bookLayoutHandler.BOOKDATE.setText(bookDataProvider.getBookdate());
bookLayoutHandler.BOOKRATING.setText(bookDataProvider.getBookrating());
bookLayoutHandler.BOOKSHELF.setText(bookDataProvider.getBookshelf());
return row1;
}
BookDataProvider:
public class BookDataProvider {
private Bitmap bookimage;
private String booktitle;
private String bookauthor;
private String bookdate;
private String bookrating;
private String bookshelf;
public Bitmap getBookimage() {
return bookimage;
}
public void setBookimage(Bitmap bookimage) {
this.bookimage = bookimage;
}
public String getBooktitle() {
return booktitle;
}
public void setBooktitle(String booktitle) {
this.booktitle = booktitle;
}
public String getBookauthor() {
return bookauthor;
}
public void setBookauthor(String bookauthor) {
this.bookauthor = bookauthor;
}
public String getBookdate() {
return bookdate;
}
public void setBookdate(String bookdate) {
this.bookdate = bookdate;
}
public String getBookrating() {
return bookrating;
}
public void setBookrating(String bookrating) {
this.bookrating = bookrating;
}
public String getBookshelf() {
return bookshelf;
}
public void setBookshelf(String bookshelf) {
this.bookshelf = bookshelf;
}
public BookDataProvider ( Bitmap bookimage, String booktitle, String bookauthor, String bookdate, String bookrating, String bookshelf)
{
this.bookimage = bookimage;
this.booktitle = booktitle;
this.bookauthor = bookauthor;
this.bookdate = bookdate;
this.bookrating = bookrating;
this.bookshelf = bookshelf;
}
}
BookContent
public class BookContent {
public static abstract class NewBookInfo{ //Tabllenspalten deklaration
public static final String BOOK_IMAGE = "book_image";
public static final String BOOK_IMAGE_TAG ="image_tag";
public static final String BOOK_TITLE = "book_title";
public static final String BOOK_AUTHOR = "book_author";
public static final String BOOK_DATE = "book_date";
public static final String BOOK_RATING = "book_rating";
public static final String BOOK_SHELF = "book_shelf";
public static final String TABLE_NAME_BOOKS = "book_info";
public static final String BOOK_ID = "_id";
}
}

If I get your question right, you need to convert your image to a blob.
Well, blob is a byte array, so the following code would help you to convert your Bitmap to a byte[]
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bitmap.compress(CompressFormat.JPEG, 70, thumbImg);
byte[] blob = stream.toByteArray();
You can also get the whole implementation from another question here:
how to store Image as blob in Sqlite & how to retrieve it?
EDIT:
Of course, you have to edit your BookDBHelper.addInformations function and add one additional parameter for your image:
public void addInformations( String booktitle, String bookauthor, String bookdate, String bookrating, String bookshelf, byte[] image, SQLiteDatabase bookdb)
{
ContentValues contentValues = new ContentValues();
contentValues.put(BookContent.NewBookInfo.BOOK_TITLE, booktitle);
contentValues.put(BookContent.NewBookInfo.BOOK_AUTHOR, bookauthor);
contentValues.put(BookContent.NewBookInfo.BOOK_DATE, bookdate);
contentValues.put(BookContent.NewBookInfo.BOOK_RATING, bookrating);
contentValues.put(BookContent.NewBookInfo.BOOK_SHELF, bookshelf);
contentValues.put(YOUR_IMAGE_CONSTANT, image);
bookdb.insert(BookContent.NewBookInfo.TABLE_NAME_BOOKS, null, contentValues);
Log.e("DATABASE OPERATIONS", "ON ROW INSERTED");
}
Now you can save your Book through ScanActivity.saveBook:
public void saveBook(View view) { //Click on save Book
// ...
BitmapDrawable bitmapDrawable = (BitmapDrawable) thumbView.getDrawable();
Bitmap bitmap = bitmapDrawable.getBitmap();
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.JPEG, 70, stream);
byte[] blob = stream.toByteArray();
sqLiteDatabase1 = bookDBHelper.getWritableDatabase();
bookDBHelper.addInformations(title, author, date, rating, shelf, blob, sqLiteDatabase1);
Toast.makeText(getBaseContext(), "Data Saved", Toast.LENGTH_LONG).show();
bookDBHelper.close();
}

GetView method from ArrayAdapter getting called onScroll up and down

I have a Custom ArrayAdapter that has a getview method, the thing is that method is being called for different views if i scroll down and up, and this make this views load again (e.g. downloading an image).
In my ListActivity class, i only call adapter = new Adapter... and list.setAdapter() , after i download and parse a json (im using AQuery library).
public class AdapterPostagem extends ArrayAdapter<Postagem>{
Context context;
LayoutInflater inflater;
boolean memCache = false;
boolean fileCache = true;
String BASE_URL = "https://graph.facebook.com/";
public AdapterPostagem(Context context, int textViewResourceId,
List<Postagem> objects) {
super(context, textViewResourceId, objects);
// TODO Auto-generated constructor stub
inflater = (LayoutInflater)context.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
this.context = context;
}
public class ViewHolder{
TextView postagem;
TextView likes;
ImageView foto;
View view;
TextView like;
TextView share;
ProgressBar pb;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
ViewHolder holder = null;
Postagem p = new Postagem();
p = getItem(position);
AQuery aq;
UrlImageViewHelper uHelper = new UrlImageViewHelper();
uHelper.setUseBitmapScaling(false);
if (convertView == null){
convertView = inflater.inflate(R.layout.postagem, parent, false);
Log.d("conv", "convertView_null");
Postagens posts = new Postagens();
Postagens.EndlessScrollListener end = posts.new EndlessScrollListener();
aq = new AQuery(convertView);
aq.scrolled(end);
holder = new ViewHolder();
holder.foto = (ImageView)convertView.findViewById(R.id.foto);
holder.postagem = (TextView)convertView.findViewById(R.id.postagem);
holder.like = (TextView)convertView.findViewById(R.id.likes);
holder.share = (TextView)convertView.findViewById(R.id.shares);
//holder.pb = (ProgressBar)convertView.findViewById(R.id.progress);
if (!p.getUrl_foto().equals("")){
getUrlPhoto(holder.foto, uHelper,p.getId(), aq, R.id.foto);
}else{
holder.foto.setVisibility(View.GONE);
}
holder.postagem.setText(p.getPostagem());
convertView.setTag(holder);
}else{
Log.d("conv", "convertView");
holder = (ViewHolder)convertView.getTag();
Postagens posts = new Postagens();
Postagens.EndlessScrollListener end = posts.new EndlessScrollListener();
aq = new AQuery(convertView);
aq.scrolled(end);
holder.foto = (ImageView)convertView.findViewById(R.id.foto);
holder.postagem = (TextView)convertView.findViewById(R.id.postagem);
if (!p.getId().equals("")){
getUrlPhoto(holder.foto, uHelper,p.getId(), aq, R.id.foto);
}else{
holder.foto.setVisibility(View.GONE);
}
//uHelper.setUrlDrawable(holder.foto, p.getUrl_foto());
setTextWithURL(holder.postagem, p.getPostagem());
//holder.postagem.setText(p.getPostagem());
//holder.likes.setText(Integer.toString(p.getLikes()));
}
return convertView;
}
public void setTextWithURL(TextView t, String s){
String [] parts = s.split("\\s");
String finals = "";
for( String item : parts ) try {
URL url = new URL(item);
// If possible then replace with anchor...
finals = finals + (""+ url + " " );
} catch (MalformedURLException e) {
// If there was an URL that was not it!...
finals = finals + item + " ";
System.out.print( item + " " );
}
t.setClickable(true);
t.setPaintFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
t.setMovementMethod(LinkMovementMethod.getInstance());
t.setText(Html.fromHtml(finals));
}
public void setPhoto(ImageView img, UrlImageViewHelper uHelper, AQuery aq, JSONObject json, int id){
String URL = "";
try {
URL = json.getJSONArray("images").getJSONObject(1).getString("source");
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
//uHelper.setUrlDrawable(img, URL);
// File file = aq.getCachedFile(URL);
// Bitmap bp = BitmapFactory.decodeFile(file.getPath());
// if (bp != null){
//
// img.setImageBitmap(bp);
//
// }else{
aq.id(img).image(URL, memCache, fileCache, 0, 0, null, 0, AQuery.RATIO_PRESERVE);
//
// }
}
public void getUrlPhoto(final ImageView img, final UrlImageViewHelper uHelper, String id, final AQuery aq, final int id_photo){
aq.ajax(BASE_URL + id, JSONObject.class, new AjaxCallback<JSONObject>() {
#Override
public void callback(String url, JSONObject json, AjaxStatus status) {
Log.d("url", url);
if(json != null){
setPhoto( img, uHelper, aq, json, id_photo);
}else{
Toast.makeText(aq.getContext(), "Error:" + status.getCode(), Toast.LENGTH_LONG).show();
}
}
});
}
}

Get the value of clicked Item of a custom listview?

I have created a Custom listview and set data by parsing a link and sorted them inside the list. Now when I am going to make a click and get the value of the individual object of a row I can't get the object of clicked row.
public class MainActivity extends Activity implements OnChildClickListener,
OnItemClickListener {
private ExpandableListView mExpandableListView;
private List<GroupEntity> mGroupCollection;
String URL;
ArrayList<EventParsingClass> EventObject_Collection = new ArrayList<EventParsingClass>();
ArrayList<Date> DateArray = new ArrayList<Date>();
ArrayList<ArrayList<EventParsingClass>> arrayOfEventDescription = new ArrayList<ArrayList<EventParsingClass>>();
MyListAdapter adapter;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.event_mainactivity);
prepareResource();
initPage();
URL = "http://..............";
ParsingWithURL(URL);
}
private void ParsingWithURL(String uRL2) {
// TODO Auto-generated method stub
new JSONPARSINGFOREVENTSTREAM().execute(URL);
}
private class JSONPARSINGFOREVENTSTREAM extends
AsyncTask<String, Void, String> {
private final String TAG_ID = "id";
private final String TAG_Title = "title";
private final String TAG_Description = "description";
private final String TAG_StartDate = "start_datetime";
private final String TAG_EndDate = "end_datetime";
private final String TAG_City = "place_city";
private final String TAG_Club = "place_club";
private final String TAG_AgeLimit = "event_agelimit";
private static final String TAG_Event_streamable = "data";
EventParsingClass EPC;
JSONArray streamable = null;
ProgressDialog pDialog;
#SuppressLint("SimpleDateFormat")
#Override
protected String doInBackground(String... arg0) {
// TODO Auto-generated method stub
Log.d("************PARAMS", arg0[0]);
JSONParser jparser = new JSONParser();
JSONObject json = jparser.getJSONFromUrl(arg0[0]);
try {
streamable = json.getJSONArray(TAG_Event_streamable);
for (int i = 0; i < streamable.length(); i++) {
EPC = new EventParsingClass();
JSONObject c = streamable.getJSONObject(i);
EPC.setId(c.getString(TAG_ID));
EPC.setPlace_city(c.getString(TAG_City));
EPC.setPlace_club(c.getString(TAG_Club));
EPC.setTitle(c.getString(TAG_Title));
EPC.setDescription(c.getString(TAG_Description));
EPC.setSratdate_time(c.getString(TAG_StartDate));
EPC.setEnddate_time(c.getString(TAG_EndDate));
EPC.setEvent_agelimit(c.getString(TAG_AgeLimit));
long difference = EPC.geEnddate_time_date().getTime()
- EPC.getSratdate_time_date().getTime();
int day_difference = (int) (difference / (1000 * 3600 * 24));
// Log.d("Difference", "" + day_difference);
if (day_difference == 0) {
AddDay(EPC.getSratdate_time_date());
} else {
if (DateArray.size() == 0) {
DateArray.add(EPC.getSratdate_time_date());
long startday = EPC.getSratdate_time_date()
.getTime();
for (int k = 1; k <= day_difference; k++) {
long constructedday = startday
+ (1000 * 3600 * 24) * k;
Date Constructed_value = new Date(
constructedday);
DateArray.add(Constructed_value);
}
} else {
AddDay(EPC.getSratdate_time_date());
long startday = EPC.getSratdate_time_date()
.getTime();
for (int k = 1; k <= day_difference; k++) {
long constructedday = startday
+ (1000 * 3600 * 24) * k;
Date Constructed_value = new Date(
constructedday);
AddDay(Constructed_value);
}
}
}
EventObject_Collection.add(EPC);
}
} catch (JSONException e) {
e.printStackTrace();
}
return null;
}
private void AddDay(Date value) {
// TODO Auto-generated method stub
if (DateArray.size() == 0) {
DateArray.add(value);
} else {
boolean b = true;
for (Date s : DateArray) {
if (s.equals(value)) {
b = false;
break;
}
}
if (b) {
DateArray.add(value);
}
}
}
#Override
protected void onPostExecute(String result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
Log.d("+++++++++++++++++++++++number of Items in List", ""
+ DateArray.size());
AddDetailedItemToListView();
AddHeaderItemsToListView();
pDialog.dismiss();
}
private void AddDetailedItemToListView() {
// TODO Auto-generated method stub
for (Date s : DateArray) {
ArrayList<EventParsingClass> constructed_arrayfor_items = new ArrayList<EventParsingClass>();
for (int g = 0; g < EventObject_Collection.size(); g++) {
EventParsingClass EVPC = EventObject_Collection.get(g);
long new_startdate = EVPC.getSratdate_time_date().getTime();
long new_endtdate = EVPC.geEnddate_time_date().getTime();
long date = s.getTime();
if (date >= new_startdate && date <= new_endtdate) {
Log.d("^^^^^^^^^^^ Value Of Date ", "" + s);
Log.d("^^^^^^^^^^^ Value Of StartDay ",
"" + EVPC.getSratdate_time_date());
Log.d("^^^^^^^^^^^ Value Of EndDay ",
"" + EVPC.geEnddate_time_date());
constructed_arrayfor_items.add(EVPC);
}
}
arrayOfEventDescription.add(constructed_arrayfor_items);
Log.d("^^^^^^^^^^^^^^^^^^^arrayOfEventDescription", ""
+ arrayOfEventDescription);
}
}
private void AddHeaderItemsToListView() {
// TODO Auto-generated method stub
ListView lv = (ListView) findViewById(R.id.list_evevnt);
LayoutInflater i = LayoutInflater.from(MainActivity.this);
List<Item> items = new ArrayList<Item>();
int length_of_datearray = DateArray.size();
Log.d("!!!!!!!!!!!!!!!", "" + DateArray.size());
Log.d("EEEEEEEEEEEEEEEEEEEE", "" + arrayOfEventDescription.size());
for (ArrayList<EventParsingClass> It : arrayOfEventDescription) {
Log.d("", "" + It.size());
for (EventParsingClass oETC : It) {
Log.d("*******" + oETC.getTitle(),
"" + oETC.getSratdate_time_date());
}
}
for (int m = 0; m < length_of_datearray; m++) {
String day_of_header = (String) android.text.format.DateFormat
.format("EEEE", DateArray.get(m));
String month_of_header = (String) android.text.format.DateFormat
.format("MMM", DateArray.get(m));
String date_of_header = (String) android.text.format.DateFormat
.format("dd", DateArray.get(m));
String total_header = day_of_header + " " + month_of_header
+ " " + date_of_header;
items.add(new Header(i, "" + total_header));
ArrayList<EventParsingClass> Arraylist_for_loop = arrayOfEventDescription
.get(m);
for (int h = 0; h < Arraylist_for_loop.size(); h++) {
String description = Arraylist_for_loop.get(h).getId();
String title = Arraylist_for_loop.get(h).getTitle();
String place_city = Arraylist_for_loop.get(h)
.getPlace_city();
String age_limit = Arraylist_for_loop.get(h)
.getEvent_agelimit();
String dayOfTheWeek = (String) android.text.format.DateFormat
.format("EEEE", Arraylist_for_loop.get(h)
.getSratdate_time_date());
String DayofWeek = dayOfTheWeek;
if (!(dayOfTheWeek == day_of_header)) {
DayofWeek = day_of_header;
}
SimpleDateFormat sdf = new SimpleDateFormat("EEEE");
Date d = new Date();
String Today = sdf.format(d);
String Value_of_today = "";
if (Today.contentEquals(DayofWeek)) {
Value_of_today = "Today";
}
items.add(new EventItem(i, Value_of_today, DayofWeek,
"12:00", title, description, place_city, "10",
age_limit));
}
}
MyListAdapter adapter = new MyListAdapter(MainActivity.this, items);
lv.setAdapter(adapter);
lv.setOnItemClickListener(MainActivity.this);
}
#Override
protected void onPreExecute() {
// TODO Auto-generated method stub
super.onPreExecute();
pDialog = new ProgressDialog(MainActivity.this);
pDialog.setMessage("Loading...");
pDialog.setCancelable(true);
pDialog.show();
}
}
private void prepareResource() {
mGroupCollection = new ArrayList<GroupEntity>();
for (int i = 1; i < 3; i++) {
GroupEntity ge = new GroupEntity();
ge.Name = "City " + i;
for (int j = 1; j < 4; j++) {
GroupItemEntity gi = ge.new GroupItemEntity();
gi.Name = "Venu" + j;
ge.GroupItemCollection.add(gi);
}
mGroupCollection.add(ge);
}
}
private void initPage() {
mExpandableListView = (ExpandableListView) findViewById(R.id.expandableListView);
ExpandableListAdapter adapter = new ExpandableListAdapter(this,
mExpandableListView, mGroupCollection);
mExpandableListView.setAdapter(adapter);
mExpandableListView.setOnChildClickListener(this);
}
#Override
public boolean onChildClick(ExpandableListView parent, View v,
int groupPosition, int childPosition, long id) {
Toast.makeText(getApplicationContext(), childPosition + "Clicked",
Toast.LENGTH_LONG).show();
return true;
}
#Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
EventParsingClass obj = (EventParsingClass) parent.getItemAtPosition(position);
Toast.makeText(getApplicationContext(), obj.getPlace_city() + "Clicked",Toast.LENGTH_LONG).show();
}
}
How can I proceed in these two scenarios?
EventParsingClass EPSP= ??? and
EPSP.getid= ??

fetch[0]="XXX"
fetch[1]="YYY"
fetch[2]="ZZZ"
lv.setOnItemClickListener(MainActivity.this);
public void onItemClick(AdapterView<?> parent, View view, int position,long id)
Toast.makeText(getApplicationContext(), fetch[position] + "Clicked",
Toast.LENGTH_LONG).show();
}
just declare fetch[position] to get the value of clicked item. hope this will give you some solution.

Use int position to find out values from your data list (array list or what ever you used).
lv.setOnItemClickListener(MainActivity.this);
public void onItemClick(AdapterView<?> parent, View view, int position,long id)
Toast.makeText(getApplicationContext(), EPSP.getid(position) + "Clicked",Toast.LENGTH_LONG).show();
}

EventItem item = (EventItem) parent.getItemAtPosition(position);
Now you have a hold of EventItem. So you can start using the get methods of your EventItem class in order to get whatever you want from it.

I got the solution:
EventParsingClass new_method(int value) {
int item_count = 0;
for (int i = 0; i < arrayOfEventDescription.size(); i++) {
ArrayList<EventParsingClass> Arraylist_for_loop = arrayOfEventDescription
.get(i);
item_count++;
for (int j = 0; j < Arraylist_for_loop.size(); j++) {
if (value == item_count) {
return Arraylist_for_loop.get(j);
}
item_count++;
}
}
return null;
}
And call it from here:
#Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
EventParsingClass newObject = new_method(arg2);
if (newObject == null) {
} else {
Log.d("Generated Value Id : ", "" + newObject.getId());
Toast.makeText(getApplicationContext(),
"Item Clicked" + arg2 + "-----" + newObject.getTitle(),
Toast.LENGTH_LONG).show();
}
}

Getting only the last item data from hashmap arraylist

I have parsed json data in which there is a main json array and it contains sub json array. But the main json array not containing the sub json array in every item. So i have parsed all the data accroding to it. and i am getting perfect data from it. But the problem is that the main json array data is displaying in listview and after click on list view item the sub json array is display accroding to main json array item but its only get the last element of sub json array from hash map array list. So i can't get proper way to display so please find out some standard solution.
Here is My Code
public class MainCategories extends Fragment {
WebserviceClass wservice = new WebserviceClass();
Context c;
View v;
String data = "";
String User_id, countryid;
JSONObject jobj;
JSONArray datas;
int currentpage = 1;
ArrayList<HashMap<String, String>> dataList = new ArrayList<HashMap<String, String>>();
// testAdapter adapter
ArrayList<Allcategories> listing = new ArrayList<Allcategories>();;
public static ArrayList<subCateData> subList = new ArrayList<subCateData>();
int limit = 3, id;
Button bt1, bt2, bt3;
String img, img1;
String name, count;
String subname, subcount, subCategoryId;
View fragmentview;
ListView lv1, lv2, lv3;
JSONObject ca;
MainTest test;
String url, main, subnameData, subCountData, subID, cateGoryID;
LinearLayout ll;
ProgressDialog pDialog;
HashMap<String, String> map;
JSONArray dataa;
// SimpleAdapter adp;
Button b1, b2, b3;
public MainCategories(Context mainActivity, int id) {
// TODO Auto-generated constructor stub
this.c = mainActivity;
this.id = id;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
SharedPreferences sp = c.getSharedPreferences("key", 0);
User_id = sp.getString("userid=", User_id);
countryid = sp.getString("countryid", countryid);
v = inflater.inflate(R.layout.categories_tab, container, false);
lv2 = (ListView) v.findViewById(android.R.id.list);
if (FirstTab.adp == null) {
new CategoryTest().execute();
} else {
lv2.setAdapter(FirstTab.adp);
}
lv2.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
for (int i = 0; i < subList.size(); i++) {
subID = subList.get(i).getsubcatId();
subnameData = subList.get(i).getsubcatname();
subCountData = subList.get(i).getsubcatcount();
Log.v("ALLDATA", subnameData + "/" + "/" + "/"
+ subCountData);
}
String catid = listing.get(position).getCategoryid();
int mycatID = Integer.parseInt(catid);
Log.v("CAtegory ID", mycatID + "");
addfragment(new CategoriesListClick(c, subID, mycatID,
subnameData, subCountData, position), true,
FragmentTransaction.TRANSIT_FRAGMENT_OPEN);
}
});
return v;
}
public class CategoryTest extends AsyncTask<String, Integer, String> {
#Override
protected String doInBackground(String... params) {
// TODO Auto-generated method stub
url = String.format(Common.view_main_category + "country_id=%s",
countryid);
Log.v("CateGory URL:", url);
jobj = wservice.getjson(url);
return null;
}
#Override
protected void onPostExecute(String result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
try {
JSONObject jdata = jobj.getJSONObject("data");
datas = jdata.getJSONArray("allcategories");
for (int i = 0; i < datas.length(); i++) {
Log.e("length", "" + datas.length());
ca = datas.getJSONObject(i);
cateGoryID = ca.getString("categoryid");
name = ca.getString("categoryname");
count = ca.getString("categorystorecount");
// map = new HashMap<String, String>();
// map.put("categoryname", name);
// map.put("categorystorecount", "(" + count + ")");
// String countc=c.getString("categoryid");
Log.e(name, count);
if (ca.has("subcategories")) {
dataa = ca.getJSONArray("subcategories");
for (int j = 0; j < dataa.length(); j++) {
JSONObject d = dataa.getJSONObject(j);
// subList = new ArrayList<subCateData>();
subCategoryId = d.getString("subcategoryid");
subname = d.getString("subcategoryname");
subcount = d.getString("subcategorystorecount");
// map.put("subcategoryid", subCategoryId);
// map.put("subcategoryname", subname);
// map.put("subcategorystorecount", "(" + subcount
// + ")");
subList.add(new subCateData(subCategoryId, subname,
subcount));
/*
* Log.v("This is Data for Sub:",
* map.get("subcategoryname").toString());
*/
}
} else {
System.out.println("JSONArray is null");
}
listing.add(new Allcategories(cateGoryID, name, count));
}
} catch (JSONException e) {
e.printStackTrace();
}
Log.v("Size", listing.size() + "");
FirstTab.adp = new MyCustom(c, listing);
lv2.setAdapter(FirstTab.adp);
}
}
void addfragment(Fragment fragment, boolean addBacktoStack, int transition) {
FragmentTransaction ft = getFragmentManager().beginTransaction();
ft.replace(R.id.simple_fragment, fragment);
ft.setTransition(transition);
if (addBacktoStack)
ft.addToBackStack(null);
ft.commit();
}
class MyCustom extends BaseAdapter {
Context Mcontext;
ArrayList<Allcategories> thisCatList;
LayoutInflater inflater;
public MyCustom(Context c, ArrayList<Allcategories> listing) {
// TODO Auto-generated constructor stub
this.Mcontext = c;
this.thisCatList = listing;
inflater = LayoutInflater.from(Mcontext);
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return thisCatList.size();
}
#Override
public Object getItem(int arg0) {
// TODO Auto-generated method stub
return arg0;
}
#Override
public long getItemId(int arg0) {
// TODO Auto-generated method stub
return arg0;
}
#Override
public View getView(int position, View v, ViewGroup parent) {
if (v == null) {
v = inflater.inflate(R.layout.list_categories, parent, false);
TextView catName = (TextView) v.findViewById(R.id.txtcname);
TextView catCount = (TextView) v.findViewById(R.id.txtccount);
catName.setText(thisCatList.get(position).getCategoryname());
catCount.setText("(" + ""
+ thisCatList.get(position).getCategorystorecount()
+ "" + ")");
Log.v("CatCount", catCount.getText().toString());
}
// TODO Auto-generated method stub
return v;
}
}
class AllCategories Data:
public class Allcategories {
private String arabicname;
private String categoryid;
private String categoryname;
private String categorystorecount;
private String fatherid;
private String order;
private String status;
// private List subcategories;
public Allcategories(String name, String count) {
// TODO Auto-generated constructor stub
this.categoryname = name;
this.categorystorecount = count;
}
public String getCategoryname() {
return this.categoryname;
}
public void setCategoryname(String categoryname) {
this.categoryname = categoryname;
}
public String getCategorystorecount() {
return this.categorystorecount;
}
public void setCategorystorecount(String categorystorecount) {
this.categorystorecount = categorystorecount;
}
SubCategory Data Class:
public class subCateData {
String subcatId, subcategoryname, subcategorystorecount;
public subCateData(String id, String name, String count) {
// TODO Auto-generated constructor stub
this.subcatId = id;
this.subcategoryname = name;
this.subcategorystorecount = count;
}
public String getsubcatId() {
return this.subcatId;
}
public void setsubcatId(String subID) {
this.subcatId = subID;
}
public String getsubcatname() {
return this.subcategoryname;
}
public void setsubcatname(String name) {
this.subcategoryname = name;
}
public String getsubcatcount() {
return this.subcategorystorecount;
}
public void setsubcatcount(String count) {
this.subcategorystorecount = count;
}
This is My Json parsing URL:
http://www.sevenstarinfotech.com/projects/demo/okaz/API/view_categories.php?country_id=4
Stack Trace:
06-27 12:23:34.361: V/ALLDATA(8533): High School///0
06-27 12:24:02.001: I/Adreno200-EGLSUB(8533): <ConfigWindowMatch:2218>: Format RGBA_8888.
06-27 12:24:02.011: D/memalloc(8533): /dev/pmem: Mapped buffer base:0x53153000 size:1536000 offset:0 fd:74
06-27 12:24:02.041: D/memalloc(8533): /dev/pmem: Mapped buffer base:0x54048000 size:15683584 offset:14147584 fd:80
06-27 12:24:02.091: D/OpenGLRenderer(8533): Flushing caches (mode 0)
06-27 12:24:02.111: D/memalloc(8533): /dev/pmem: Unmapping buffer base:0x51b26000 size:3072000 offset:1536000
06-27 12:24:02.121: D/memalloc(8533): /dev/pmem: Unmapping buffer base:0x552a2000 size:9093120 offset:7557120
06-27 12:24:02.121: D/memalloc(8533): /dev/pmem: Unmapping buffer base:0x55b4e000 size:17219584 offset:15683584
06-27 12:24:03.081: D/CLIPBOARD(8533): Hide Clipboard dialog at Starting input: finished by someone else... !
06-27 12:24:03.141: D/OpenGLRenderer(8533): Flushing caches (mode 0)
06-27 12:24:03.141: D/memalloc(8533): /dev/pmem: Unmapping buffer base:0x53153000 size:1536000 offset:0
06-27 12:24:03.141: D/memalloc(8533): /dev/pmem: Unmapping buffer base:0x54048000 size:15683584 offset:14147584
06-27 12:24:03.441: D/OpenGLRenderer(8533): Flushing caches (mode 2)

you should have to put new HashMap inside your current HasHMap so you can get subcategories items for particular index.
see this for how to use nested HashMap? and use it in subcategories loop.
i am using ArrayList of getter setter class to bind the data. so if you can convert your code into arraylist and edit the question that will be a great..
and see below code
import java.util.ArrayList;
public class MainCategories extends Fragment {
WebserviceClass wservice = new WebserviceClass();
Context c;
View v;
String data = "";
String User_id, countryid;
JSONObject jobj;
JSONArray datas;
int currentpage = 1;
ArrayList<HashMap<String, String>> dataList = new ArrayList<HashMap<String, String>>();
// testAdapter adapter
ArrayList<Allcategories> listing = new ArrayList<Allcategories>();;
public static ArrayList<subCateData> subList = new ArrayList<subCateData>();
int limit = 3, id;
Button bt1, bt2, bt3;
String img, img1;
String name, count;
String subname, subcount, subCategoryId;
View fragmentview;
ListView lv1, lv2, lv3;
JSONObject ca;
MainTest test;
String url, main, subnameData, subCountData, subID, cateGoryID;
LinearLayout ll;
ProgressDialog pDialog;
HashMap<String, String> map;
JSONArray dataa;
// SimpleAdapter adp;
Button b1, b2, b3;
/// sanket
ArrayList<Allcategories> list = new ArrayList<Allcategories>();
public MainCategories(Context mainActivity, int id) {
// TODO Auto-generated constructor stub
this.c = mainActivity;
this.id = id;
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// TODO Auto-generated method stub
SharedPreferences sp = c.getSharedPreferences("key", 0);
User_id = sp.getString("userid=", User_id);
countryid = sp.getString("countryid", countryid);
v = inflater.inflate(R.layout.categories_tab, container, false);
lv2 = (ListView) v.findViewById(android.R.id.list);
if (FirstTab.adp == null) {
new CategoryTest().execute();
} else {
lv2.setAdapter(FirstTab.adp);
}
lv2.setOnItemClickListener(new OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view,
int position, long id) {
for (int i = 0; i < subList.size(); i++) {
subID = list.get(position).get(i).getList().getsubcatId();
subnameData = list.get(position).get(i).getList().getsubcatname();
subCountData = list.get(position).get(i).getList().getsubcatcount();
Log.v("ALLDATA", subnameData + "/" + "/" + "/"
+ subCountData);
}
String catid = listing.get(position).getCategoryid();
int mycatID = Integer.parseInt(catid);
Log.v("CAtegory ID", mycatID + "");
addfragment(new CategoriesListClick(c, subID, mycatID,
subnameData, subCountData, position), true,
FragmentTransaction.TRANSIT_FRAGMENT_OPEN);
}
});
return v;
}
public class CategoryTest extends AsyncTask<String, Integer, String> {
#Override
protected String doInBackground(String... params) {
// TODO Auto-generated method stub
url = String.format(Common.view_main_category + "country_id=%s",
countryid);
Log.v("CateGory URL:", url);
jobj = wservice.getjson(url);
return null;
}
#Override
protected void onPostExecute(String result) {
// TODO Auto-generated method stub
super.onPostExecute(result);
try {
JSONObject jdata = jobj.getJSONObject("data");
datas = jdata.getJSONArray("allcategories");
for (int i = 0; i < datas.length(); i++) {
// sanket
Allcategories binAll = new Allcategories();
Log.e("length", "" + datas.length());
ca = datas.getJSONObject(i);
cateGoryID = ca.getString("categoryid");
name = ca.getString("categoryname");
count = ca.getString("categorystorecount");
// map = new HashMap<String, String>();
// map.put("categoryname", name);
// map.put("categorystorecount", "(" + count + ")");
// String countc=c.getString("categoryid");
//sanket
binAll.setcategoryid(cateGoryID);
binAll.setcategoryname(name);
binAll.setcategorystorecount(count);
Log.e(name, count);
if (ca.has("subcategories")) {
dataa = ca.getJSONArray("subcategories");
for (int j = 0; j < dataa.length(); j++) {
JSONObject d = dataa.getJSONObject(j);
// subList = new ArrayList<subCateData>();
subCategoryId = d.getString("subcategoryid");
subname = d.getString("subcategoryname");
subcount = d.getString("subcategorystorecount");
// map.put("subcategoryid", subCategoryId);
// map.put("subcategoryname", subname);
// map.put("subcategorystorecount", "(" + subcount
// + ")");
//// sanket
ArrayList<subCateData> sublist = new ArrayList<subCateData>();
subCateData binSub = new subCateData();
binSub.setsubcatId(subCategoryId);
binSub.setsubcatname(subname);
binSub.setsubcatcount(subcount);
subList.add(new subCateData(subCategoryId, subname,
subcount));
/*
* Log.v("This is Data for Sub:",
* map.get("subcategoryname").toString());
*/
sublist.add(binSub);
}
/// sanket note : make arraylist of subdata in Allcategories class and generate getter and settter
binAll.setList(sublist);
} else {
System.out.println("JSONArray is null");
}
listing.add(new Allcategories(cateGoryID, name, count));
list.add(binAll);
}
} catch (JSONException e) {
e.printStackTrace();
}
Log.v("Size", listing.size() + "");
FirstTab.adp = new MyCustom(c, listing);
lv2.setAdapter(FirstTab.adp);
}
}
void addfragment(Fragment fragment, boolean addBacktoStack, int transition) {
FragmentTransaction ft = getFragmentManager().beginTransaction();
ft.replace(R.id.simple_fragment, fragment);
ft.setTransition(transition);
if (addBacktoStack)
ft.addToBackStack(null);
ft.commit();
}
class MyCustom extends BaseAdapter {
Context Mcontext;
ArrayList<Allcategories> thisCatList;
LayoutInflater inflater;
public MyCustom(Context c, ArrayList<Allcategories> listing) {
// TODO Auto-generated constructor stub
this.Mcontext = c;
this.thisCatList = listing;
inflater = LayoutInflater.from(Mcontext);
}
#Override
public int getCount() {
// TODO Auto-generated method stub
return thisCatList.size();
}
#Override
public Object getItem(int arg0) {
// TODO Auto-generated method stub
return arg0;
}
#Override
public long getItemId(int arg0) {
// TODO Auto-generated method stub
return arg0;
}
#Override
public View getView(int position, View v, ViewGroup parent) {
if (v == null) {
v = inflater.inflate(R.layout.list_categories, parent, false);
TextView catName = (TextView) v.findViewById(R.id.txtcname);
TextView catCount = (TextView) v.findViewById(R.id.txtccount);
catName.setText(thisCatList.get(position).getCategoryname());
catCount.setText("(" + ""
+ thisCatList.get(position).getCategorystorecount()
+ "" + ")");
Log.v("CatCount", catCount.getText().toString());
}
// TODO Auto-generated method stub
return v;
}
}

Sorting the non-NULLs Date in ascending or descending and null Date last display in listview in android?

I have arraylist and all data nulldate and date add in one array list.and i display in listview all data.but my problem is i get nulldate first and avalible date in last i want to null date data before available date. and i want to sorting available date and null date data no sorting and and just list view in add.please help me....!!!!!!!!!!!
public class Approval extends Activity {
protected static final All_Approval_data_dto All_Approval_data_dto = null;
#Override
public void onBackPressed() {
super.onBackPressed();
finish();
list.clear();
}
private String assosiatetoken;
ArrayList<All_Approval_data_dto> list = new ArrayList<All_Approval_data_dto>();
ArrayList<All_Approval_Key_dto> alist = new ArrayList<All_Approval_Key_dto>();
ArrayList<String> catState = new ArrayList<String>();
ArrayList<String> uniCatState = new ArrayList<String>();
ArrayList<ArrayList<All_Approval_data_dto>> masterState = new ArrayList<ArrayList<All_Approval_data_dto>>();
private String req_id;
ListView lv;
Button back;
ExpAdapter1 expAdapter;
private Spinner spndata;
String[] reqspinner = { "Request Date", "Last Update", "Submitter",
"Owner", "State" };
ArrayAdapter<String> adapter;
private ExpandableListView exlistView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.approval);
assosiatetoken = MyApplication.getToken();
alist = DBAdpter.recursUserData(assosiatetoken);
for (int i = 0; i < alist.size(); i++) {
req_id = alist.get(i).requestId;
list = DBAdpter.approvalUserData(assosiatetoken, req_id);
}
// setState();
new doinbackground(this).execute();
spndata = (Spinner) findViewById(R.id.list_all_quize);
adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_spinner_item, reqspinner);
spndata.setAdapter(adapter);
lv = (ListView) findViewById(R.id.listapprovaldata);
lv.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> a, View v, int position,
long id) {
Intent edit = new Intent(Approval.this, Approval_webview.class);
// edit.putExtra("Cat_url", url_link);
startActivity(edit);
}
});
exlistView = (ExpandableListView) findViewById(R.id.ExpList);
spndata.setOnItemSelectedListener(new OnItemSelectedListener() {
public void onItemSelected(AdapterView<?> arg0, View arg1,
int position, long arg3) {
switch (position) {
case 0:
lv.setVisibility(View.VISIBLE);
exlistView.setVisibility(View.GONE);
Collections.sort(list, byDate);
for (int i = 0; i < list.size(); i++) {
Log.v("log_tag", "Data " + list.get(i).lastModifiedDate);
if (list.get(i).lastModifiedDate != null) {
Log.v("log_tag", "sorting "
+ list.get(i).lastModifiedDate);
lv.setAdapter(new MyListAdapter(
getApplicationContext(), list));
}
}
break;
case 1:
lv.setVisibility(View.VISIBLE);
exlistView.setVisibility(View.GONE);
Collections.sort(list, byDate1);
for (int i = 0; i < list.size(); i++) {
if (list.get(i).state != null) {
lv.setAdapter(new MyListAdapter(
getApplicationContext(), list));
}
}
break;
case 2:
break;
case 3:
break;
default:
break;
}
}
public void onNothingSelected(AdapterView<?> arg0) {
// TODO Auto-generated method stub
}
});
}
static final Comparator<All_Approval_data_dto> byDate = new Comparator<All_Approval_data_dto>() {
SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy hh:mm:ss a");
#SuppressWarnings("unused")
public int compare(All_Approval_data_dto ord1,
All_Approval_data_dto ord2) {
java.util.Date d1 = null;
java.util.Date d2 = null;
try {
if (d1 == null) {
return (d2 == null) ? 0 : -1;
} else if (d2 == null) {
return 1;
}
d1 = sdf.parse(ord1.lastModifiedDate);
d2 = sdf.parse(ord2.lastModifiedDate);
} catch (java.text.ParseException e) {
// TODO Auto-generated catch block`
e.printStackTrace();
}
// return (d1.compareTo(d2) > 0 ? 1 : -1);
return (d1.getTime() > d2.getTime() ? -1 : 1); // descending
}
};
/*
* static final Comparator<AnalysisDto> byRatio = new
* Comparator<AnalysisDto>() {
*
*
* public int compare(Date date1, Date date2) { return
* (date1.compareTo(date2)>0 ? 1 : -1); } };
*/
static final Comparator<All_Approval_data_dto> byDate1 = new Comparator<All_Approval_data_dto>() {
SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy hh:mm:ss a");
#SuppressWarnings("unused")
public int compare(All_Approval_data_dto ord1,
All_Approval_data_dto ord2) {
java.util.Date d1 = null;
java.util.Date d2 = null;
try {
if (d1 == null) {
return (d2 == null) ? 0 : -1;
} else if (d2 == null) {
return 1;
}
d1 = sdf.parse(ord1.submitDate);
d2 = sdf.parse(ord2.submitDate);
} catch (java.text.ParseException e) {
// TODO Auto-generated catch block`
e.printStackTrace();
}
// return (d1.compareTo(d2) > 0 ? 1 : -1);
return (d1.getTime() > d2.getTime() ? -1 : 1); // descending
// return (d1.getTime() > d2.getTime() ? 1 : -1); //ascending
}
};
class doinbackground extends AsyncTask<Void, Void, Void> {
ProgressDialog pd;
private Context ctx;
public doinbackground(Context c) {
ctx = c;
}
#Override
protected void onPreExecute() {
super.onPreExecute();
pd = new ProgressDialog(ctx);
pd.setMessage("Loading...");
pd.show();
}
#Override
protected Void doInBackground(Void... params) {
return null;
}
#Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
pd.cancel();
}
}
public class MyListAdapter extends BaseAdapter {
private ArrayList<All_Approval_data_dto> list;
public MyListAdapter(Context mContext,
ArrayList<All_Approval_data_dto> list) {
this.list = list;
}
public int getCount() {
return list.size();
}
public All_Approval_data_dto getItem(int position) {
return list.get(position);
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflator = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE);
convertView = inflator.inflate(R.layout.custom_approval_data, null);
TextView req_id = (TextView) convertView.findViewById(R.id.req_txt);
TextView date = (TextView) convertView.findViewById(R.id.date_txt);
TextView owner = (TextView) convertView
.findViewById(R.id.owner_txt);
TextView state = (TextView) convertView
.findViewById(R.id.state_txt);
req_id.setText(list.get(position).requestId + " - "
+ list.get(position).title);
date.setText(list.get(position).lastModifiedDate + " - "
+ list.get(position).submitDate);
owner.setText(list.get(position).submitter);
state.setText(list.get(position).state);
return convertView;
}
}
}

replace your try/catch block with this
try {
if (ord1 == null) {
return (ord2 == null) ? 0 : 1;
} else if (ord2 == null) {
return -1;
}
d1 = sdf.parse(ord1.lastModifiedDate);
d2 = sdf.parse(ord2.lastModifiedDate);
} catch (java.text.ParseException e) {
// TODO Auto-generated catch block`
e.printStackTrace();
}

try this this with your data and manage in ascending or descending
Java Array Sort descending?