Android too much work done on mainthread

Android too much work done on mainthread - android

I have a problem, I keep getting an error that there is too much work being done on the mainthread. The code goes like this:
In my main activity call the helper class(UcitavanjeUpozadini) to load the data in background.
public class MainActivity extends AppCompatActivity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//String link = getResources().getString(R.string.blogLink);
//Uri uri = Uri.parse(link); // missing 'http://' will cause crashed
//Intent intent = new Intent(Intent.ACTION_VIEW, uri);
//startActivity(intent);
List<View> listaView = new ArrayList<View>();
int[] idView = {R.layout.fragment_first_apartment, R.layout.fragment_second_apartment, R.layout.fragment_third_apartment, R.layout.fragment_fourth_apartment};
for(int i = 0; i < idView.length; i++)
{
View view = getLayoutInflater().inflate(idView[i], null);
listaView.add(view);
}
UcitavanjeUpozadini ucitavanje = new UcitavanjeUpozadini(this, listaView);
ucitavanje.execute();
}
I also inflate the fragments i am going to use later to populate the data i get.
Then all of my code is done in the doInBackground part of the class.
Any help is welcome.
public class UcitavanjeUpozadini extends AsyncTask<Void, Void, Void> {
private Context context;
private List<OglasHelper> lista;
private List<TypedArray> listaId;
private List<View> views;
private ProgressDialog progressDialog;
public UcitavanjeUpozadini(Context context, List<View> views){
this.context = context;
this.lista = new ArrayList<OglasHelper>();
this.listaId = new ArrayList<TypedArray>();
this.views = views;
this.progressDialog = null;
}
#Override
protected void onPreExecute()
{
/*
* This is executed on UI thread before doInBackground(). It is
* the perfect place to show the progress dialog.
*/
progressDialog = ProgressDialog.show(context, "",
"Loading...");
}
#Override
protected Void doInBackground(Void... params) {
UcitavanjeHelperKlasa ucitavanjeHelperKlasa = new UcitavanjeHelperKlasa();
String jsonString = ucitavanjeHelperKlasa.vratiJsonFajl(context, R.raw.source);
lista = ucitavanjeHelperKlasa.vratiSveOglase(jsonString);
int[] idEviArraya = {R.array.prviOglas, R.array.drugiOglas, R.array.treciOglas, R.array.cetvrtiOglas};
for (int i = 0; i < idEviArraya.length; i++)
{
TypedArray oglas = context.getResources().obtainTypedArray(idEviArraya[i]);
listaId.add(oglas);
}
napuniOglasePodacima();
return null;
}
#Override
protected void onPostExecute() {
progressDialog.dismiss();
}
public void napuniOglasePodacima(){
for(int i = 0; i < lista.size(); i++)
{
View view = (View) views.get(i);
TypedArray array = listaId.get(i);
Log.v("broj podataka u array-u", String.valueOf(array.getIndexCount()));
if(array.getIndexCount() == 7)
{
fillApartment(array, lista.get(i), view);
}
else if(array.getIndexCount() == 9)
{
fillApartment(array, lista.get(i), view);
TextView description = (TextView) view.findViewById(array.getIndex(7));
String sredjenOpis = lista.get(i).getDescription().substring(0, array.getIndex(8)) + "...";
description.setText(sredjenOpis);
}
}
}
public void fillApartment(TypedArray array, OglasHelper oglasHelper, View view)
{
ImageView borderTop = (ImageView) view.findViewById(array.getIndex(0));
ImageView dugme = (ImageView) view.findViewById(array.getIndex(1));
TextView rentBuy = (TextView) view.findViewById(array.getIndex(2));
TextView currency = (TextView) view.findViewById(array.getIndex(3));
TextView price = (TextView) view.findViewById(array.getIndex(4));
TextView name = (TextView) view.findViewById(array.getIndex(5));
TextView address = (TextView) view.findViewById(array.getIndex(6));
int broj = array.getIndex(0);
String string = String.valueOf(broj);
Log.v("Ovo je testiranje", string);
borderTop.setBackgroundColor(Color.parseColor(oglasHelper.getColor()));
String rentBuyString = oglasHelper.getRentBuy();
if(rentBuyString.equals("RENT"))
{
dugme.setImageResource(R.drawable.dugme_rent);
}
else if(rentBuyString.equals("BUY"))
{
dugme.setImageResource(R.drawable.dugme_buy);
}
rentBuy.setText(rentBuyString);
rentBuy.setTextColor(Color.parseColor(oglasHelper.getColor()));
currency.setText(oglasHelper.getCurrency());
String sredjenaCena = NumberFormat.getNumberInstance(Locale.GERMANY).format(oglasHelper.getPrice());
price.setText(sredjenaCena);
name.setText(oglasHelper.getName());
String[] poljaAdrese = {oglasHelper.getStreet() ,oglasHelper.getCity(), oglasHelper.getNeighbourhood(), oglasHelper.getZipcode()};
String sredjenaAdresa = "";
for(int i = 0; i < poljaAdrese.length; i++)
{
if(i == 3)
{
sredjenaAdresa = sredjenaAdresa.substring(0, -1) + ", " + poljaAdrese[i];
}
else if(!poljaAdrese[i].equals(""))
{
sredjenaAdresa += poljaAdrese[i] + " ";
}
}
address.setText(sredjenaAdresa);
}
}

Related

How to get edit text values from a listview

I am not able to get edittext value from dynamic listview. When I am scrolling listview, entered values in edit text is going invisible
Below is My Activity file -
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.content_servic_homepage);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
url = getResources().getString(R.string.webservice);
aq = new AQuery(ServicHomepage.this);
cd = new ConnectionDetector(ServicHomepage.this);
findviewbyId();
progressdialog();
if (cd.isConnectingToInternet()) {
getintentData();
} else {
Toast.makeText(ServicHomepage.this, "CheckIternet connection", Toast.LENGTH_SHORT).show();
}
}
private void progressdialog() {
pd = new ProgressDialog(ServicHomepage.this);
pd.setMessage("Loading...");
}
public void findviewbyId() {
recyclerview = (ListView) findViewById(R.id.service_recycler_view);
update_descrptn = (TextView) findViewById(R.id.update_descrptn);
uploadimages = (TextView) findViewById(R.id.uploadimages);
}
public void getintentData() {
SharedPreferences prefs = getSharedPreferences(Constants.PREFS_NAME, 0);
catid = prefs.getString(Constants.CATID, "");
subcatid = prefs.getString(Constants.SUBCATID, "");
user_id = prefs.getString(Constants.USERID, "");
isappointment = prefs.getString(Constants.IS_APPOINTMENT, "");
clicklistener();
}
public void clicklistener() {
uploadimages.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Intent i = new Intent(getApplicationContext(), GalleryAlbumActivity.class);
startActivity(i);
}
});
update_descrptn.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
Toast.makeText(ServicHomepage.this, "" + serv_adapter.getItem(POSITION), Toast.LENGTH_SHORT).show();
for (int i = 0; i < serv_adapter.getCount(); i++) {
View view = serv_adapter.getView(i,null,null);
EditText edittext = (EditText)view.findViewById(R.id.et_amount);
EditText et_description = (EditText)view.findViewById(R.id.et_description);
String str = edittext.getText().toString();
String str1 = et_description.getText().toString();
Toast.makeText(ServicHomepage.this, str + "==" + str1, Toast.LENGTH_SHORT).show();
}
updateList();
}
});
}
private void updateList() {
String substring = null, msgString = "";
String MAIN_CART = null;
MAIN_CART = "{\"service\":[%s]}";
String temstring = "";
for (int i = 0; i < arrayList.size(); i++) {
substring = "{\"title\":\"" + arrayList.get(i).getTitle() + "\",\"subcatid\":\"" + arrayList.get(i).getSubcatid()
+ "\",\"amount\":\"" + "" + "\",\"description\":\"" + "" + "\"}" + ",";
temstring = temstring + substring;
}
temstring = temstring.substring(0, temstring.length() - 1);
msgString = msgString + String.format(MAIN_CART, temstring);
Log.e("msgString=============", msgString);
}
This is the method where all the items are adding in the list
public String parseanimcat(String object) {
try {
JSONObject json = new JSONObject(object);
JSONObject jsonobj = json.getJSONObject("data");
status1 = jsonobj.getString("status");
message = jsonobj.getString("message");
arrayList = new ArrayList<>();
JSONArray jarray = jsonobj.getJSONArray("dataFound");
for (int i = 0; i <= jarray.length(); i++) {
JSONObject jobj = jarray.getJSONObject(i);
String category = jobj.getString("category");
String subsubcat_id = jobj.getString("subsubcat_id");
Toast.makeText(ServicHomepage.this, category + "==" + subsubcat_id, Toast.LENGTH_SHORT).show();
model = new Data_Model();
model.setTitle(category);
model.setSubcatid(subsubcat_id);
arrayList.add(model);
}
} catch (JSONException e) {
e.printStackTrace();
}
return object;
}
This is my adapter class-
private class service_list_adapter extends ArrayAdapter<Data_Model>{
private ArrayList<Data_Model> array_list;
Context context;
String[] etValArr;
ViewHolder holder;
String[] totalValue;
Data_Model model;
HashMap<String, String> hm = new HashMap<>();
ArrayList<HashMap<String, String>> list = new ArrayList<>();
public service_list_adapter(Context context,int resourceId,ArrayList<Data_Model> arrayList) {
super(context,resourceId,arrayList);
this.context = context;
this.array_list = arrayList;
etValArr = new String[array_list.size()];
totalValue = new String[array_list.size()];
}
private class ViewHolder {
public TextView serv_title;
public EditText serv_descrptn, serv_amount;
}
public View getView(int position, View convertView, ViewGroup parent) {
model = array_list.get(position);
POSITION = position;
LayoutInflater mInflater = (LayoutInflater) context
.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
if (convertView == null) {
convertView = mInflater.inflate(R.layout.serv_cat_rowitem, null);
holder = new ViewHolder();
holder.serv_title = (TextView) convertView.findViewById(R.id.serv_txt);
holder.serv_descrptn = (EditText) convertView.findViewById(R.id.et_description);
holder.serv_amount = (EditText) convertView.findViewById(R.id.et_amount);
convertView.setTag(holder);
holder.serv_title.setTag(position);
holder.serv_descrptn.setTag(position);
holder.serv_amount.setTag(position);
} else
holder = (ViewHolder) convertView.getTag();
holder.serv_title.setText(model.getTitle());
holder.serv_descrptn.setText(model.getServdescription());
holder.serv_amount.setText(model.getServamount());
holder.serv_amount.addTextChangedListener(new TextWatcher() {
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
#Override
public void afterTextChanged(Editable s) {
model.setServamount(s.toString());
}
});
holder.serv_descrptn.addTextChangedListener(new TextWatcher() {
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
#Override
public void afterTextChanged(Editable s) {
model.setServdescription(s.toString());
}
});
return convertView;
}
}

be more specific exactly which editText value you want.
you can implement onScrollListner on list and save the value of the editText on that event and later use it

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();
}

Fully displayed listview image is not displaying properly

its my following code.
public class Wishlist extends Activity {
Button checkout;
ListView ListCart;
String name, cusid, ffname, llname, phone, fax, password, email;
String[] qu, s;
int[] g;
int k = 0;
String cost;
ProgressDialog pDialog = null;
List<CartProducts> product_list;
Context ctx;
Integer pos = 0, total = 0, q = 0, gtot = 0, total1 = 0, sum = 0;
SQLiteDatabase FavData;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_modifywishlist);
Intent page1 = getIntent();
cusid = page1.getStringExtra("cus_id");
ffname = page1.getStringExtra("fname");
llname = page1.getStringExtra("lname");
phone = page1.getStringExtra("ph");
fax = page1.getStringExtra("fax");
password = page1.getStringExtra("password");
email = page1.getStringExtra("email");
ListCart = (ListView) findViewById(R.id.list_item);
pDialog = new ProgressDialog(this);
ctx = this;
FavData = Wishlist.this.openOrCreateDatabase("SHOPPING_CARTFAV", MODE_PRIVATE, null);
FavData.execSQL("CREATE TABLE IF NOT EXISTS fav_items(product_id varchar, name varchar, price varchar, quantity integer, model varchar, image varchar, manufacturer varchar )");
ArrayList<CartProducts> myList = new ArrayList<CartProducts>();
Cursor crsr = FavData.rawQuery("SELECT * FROM fav_items", null);
final String[] productID = new String[crsr.getCount()];
final String[] ProductName = new String[crsr.getCount()];
final String[] ProductPrice = new String[crsr.getCount()];
final String[] ProductQuantity = new String[crsr.getCount()];
final String[] ProductModel = new String[crsr.getCount()];
final String[] ProductImage = new String[crsr.getCount()];
final String[] ProductManufacturer = new String[crsr.getCount()];
int j = 0;
while (crsr.moveToNext()) {
String id = crsr.getString(crsr.getColumnIndex("product_id"));
productID[j] = id;//product_id,name,price,quantity,model,image,manufacturer
name = crsr.getString(crsr.getColumnIndex("name"));
ProductName[j] = name;
String price = crsr.getString(crsr.getColumnIndex("price"));
ProductPrice[j] = price;
String s = ProductPrice[j].toString();
s = s.replace(",", "");
String[] parts = s.split("\\."); // escape .
String part1 = parts[0];
String part2 = parts[1];
part1 = part1.replace("₹", "");
total = Integer.parseInt(part1); // Toast.makeText(Table.this, part1, Toast.LENGTH_SHORT).show();
String qnty = crsr.getString(crsr.getColumnIndex("quantity"));
ProductQuantity[j] = qnty;
String s2 = ProductQuantity[j].toString();
total1 = Integer.parseInt(s2);
sum = total * total1;
String model = crsr.getString(crsr.getColumnIndex("model"));
ProductModel[j] = model;
String image = crsr.getString(crsr.getColumnIndex("image"));
ProductImage[j] = image;
String manufacturer = crsr.getString(crsr.getColumnIndex("manufacturer"));
ProductManufacturer[j] = manufacturer;
//Toast.makeText(getApplicationContext(), productID[j] + "" + ProductName[j] + "" + ProductPrice[j] + "" + ProductQuantity[j] + "" + ProductModel[j] + "" + ProductImage[j] + "" + ProductManufacturer[j], Toast.LENGTH_SHORT).show();
myList.add(new CartProducts(productID[j], ProductName[j], ProductPrice[j], ProductQuantity[j], ProductModel[j], ProductImage[j], ProductManufacturer[j]));
gtot = gtot + sum;
j++;
}
ListCart.setAdapter(new Wishlist_Listadapter(ctx, R.layout.activity_wishlist_cartrow, myList));
getListViewSize(ListCart);
String s1 = ProductPrice.toString();
}
public static void getListViewSize(ListView myListView) {
ListAdapter myListAdapter = myListView.getAdapter();
if (myListAdapter == null) {
//do nothing return null
return;
}
//set listAdapter in loop for getting final size
int totalHeight = 0;
for (int size = 0; size < myListAdapter.getCount(); size++) {
View listItem = myListAdapter.getView(size, null, myListView);
if (listItem != null) {
listItem.measure(0, 0);
totalHeight += listItem.getMeasuredHeight();
}
}
//setting listview item in adapter
ViewGroup.LayoutParams params = myListView.getLayoutParams();
if (params != null) {
params.height = totalHeight
+ (myListView.getDividerHeight() * (myListAdapter
.getCount() - 1));
myListView.setLayoutParams(params);
// print height of adapter on log
}
myListView.requestLayout();
// print height of adapter on log
Log.i("height of listItem:", String.valueOf(totalHeight));
}
}
Adapter class
Public class Wishlist_Listadapter extends ArrayAdapter<CartProducts> {
Bitmap bitmap;
ImageView img;
String urll, name,totalps;
SQLiteDatabase FavData;
Integer total = 0, quanty = 1, grandtot = 0, i = 0;
String it;
Button addbtn, minbtn;
EditText editqu;
int total1 = 0, quantity=0, fulltotal = 0, sum;
SQLiteOpenHelper dbhelper;
Wishlist_Listadapter cart = Wishlist_Listadapter.this;
private int resource;
private LayoutInflater inflater;
private Context context;
int count=1 ;
public Wishlist_Listadapter(Context ctx, int resourceId, List<CartProducts> objects) {
super(ctx, resourceId, objects);
resource = resourceId;
inflater = LayoutInflater.from(ctx);
context = ctx;
}
public View getView(int position, View convertView, ViewGroup parent) {
/* create a new view of my layout and inflate it in the row */
convertView = (RelativeLayout) inflater.inflate(resource, null);
final ViewHolder viewholder;
viewholder = new ViewHolder();
final CartProducts banqt = getItem(position);
totalps=(banqt.getPrice());
String s = totalps.toString();
s = s.replace(",", "");
String[] parts = s.split("\\."); // escape .
String part1 = parts[0];
String part2 = parts[1];
part1 = part1.replace("₹", "");// Toast.makeText(getContext(), part1, Toast.LENGTH_LONG).show();
total = Integer.parseInt(part1);
quanty = Integer.parseInt(banqt.getQuantity());
grandtot = total *quanty;
viewholder.total = (TextView) convertView.findViewById(R.id.txt_total);
viewholder.total.setText(String.valueOf(grandtot));
Button delet = (Button) convertView.findViewById(R.id.btn_remove);
delet.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
/*delete function*/
it = banqt.getProduct_id();
FavData = context.openOrCreateDatabase("SHOPPING_CARTFAV", context.MODE_PRIVATE, null);
FavData.execSQL("DELETE FROM fav_items WHERE product_id=" + it + ";");
Intent intent = ((Wishlist) context).getIntent();
((Wishlist) context).finish();
context.startActivity(intent);
}
});
viewholder.txtName = (TextView) convertView.findViewById(R.id.product_name);
viewholder.txtName.setText(banqt.getName());
img = (ImageView) convertView.findViewById(R.id.img_product);
urll = banqt.getImage().toString();
urll = urll.replaceAll(" ", "%20");// Toast.makeText(getContext(),urll,Toast.LENGTH_LONG).show();
new LoadImage().execute(urll);
return convertView;
}
static class ViewHolder {
TextView txtName;
TextView total;
EditText editqu;
TextView txtprice;
}
private class LoadImage extends AsyncTask<String, String, Bitmap> {
#Override
protected void onPreExecute() {
super.onPreExecute();
}
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) {
img.setImageBitmap(image);
// pDialog.dismiss();
} else {
// pDialog.dismiss();
Toast.makeText(getContext(), "Image Does Not exist or Network Error", Toast.LENGTH_SHORT).show();
}
}
}
}
listview is working properly
i just inflate cardview in listview.
when using this code image cannot displaying. only dispaly last image in list view
params.height = totalHeight
+ (myListView.getDividerHeight() * (myListAdapter
.getCount() - 1));
my problem is: In listview only displaying last image
check this image:

Try adding your ImageView to Holder class and use like viewholder.img.setImageBitmap(new LoadImage().execute(urll)) and change the return type to Bitmap

Use BaseAdapter instead of ArrayAdapter. Load and show image with UIL, Picasso or other image loader library.
public class ImageAdapter extends BaseAdapter {
private List<ImageBean> list;
private ArrayList<ImageBean> arraylist;
private LayoutInflater inflater;
public ImageAdapter(Context context, List<ImageBean> list) {
this.list = list;
inflater = LayoutInflater.from(context);
this.arraylist = new ArrayList<>();
}
#Override
public int getCount() {
return list.size();
}
#Override
public ImageBean getItem(int position) {
return list.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
holder = new ViewHolder();
convertView = inflater.inflate(R.layout.recycler_view_item, parent, false);
holder.ivImage = (ImageView) convertView.findViewById(R.id.ivImage);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
// Loading image with UIL example
ImageLoader.getInstance().displayImage(getItem(position).getUrl(), holder.ivImage, ImageUtils.UIL_USER_AVATAR_DISPLAY_OPTIONS);
return convertView;
}
private class ViewHolder {
public ImageView ivImage;
}
}

How do I use onResume and onPause method when I am pressed back button

I have a custom adapter for recyclerview using json webservices. I had to parse the url one by one and show cardview using onscrolllistener(). My question is when I pressed the back button and after I open in recent app (that time onResume called) it will show only which url called at the time of onPause called. So how can I refresh the listview when I call onResume.
Thanks in Advance,
Here my code synepet..
public class MainActivity extends AppCompatActivity {
private RecyclerView mRecyclerView;
private RecyclerView.Adapter mAdapter;
private GridLayoutManager mGridManager;
private ProgressBar mProgressBar;
private static String url = "https://www.googleapis.com/youtube/v3/playlists?part=snippet&channelId=UCGyZswzm4G-wEfRQHgMSAuw&maxResults=50&key=AIzaSyCi0ApXYk08YpzyEO8jYJanaud-Epti6ks&pageToken=CDIQAQ";
JSONArray contacts = null;
private String mNextToken;
JSONObject jsonObj;
private boolean loading = true;
int visibleItemCount, totalItemCount, pastVisiblesItems;
private List<PlayListItem> mContactList = new ArrayList<PlayListItem>();
private PlayListItem mContact;
private Bundle mbundle;
String name2 = "Arasu";
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
mProgressBar = (ProgressBar) findViewById(R.id.progressBar);
mRecyclerView = (RecyclerView) findViewById(R.id.recycler_view);
mRecyclerView.setHasFixedSize(true);
// Calling async task to get json
new GetContacts().execute();
mAdapter = new CardAdapter(MainActivity.this, mContactList);
mRecyclerView.setAdapter(mAdapter);
getScreenOrientation();
}
#Override
public void onResume() {
super.onResume();
}
#Override
protected void onPause() {
super.onPause();
System.out.println("Size2---->" + mContactList.size());
}
private class GetContacts extends AsyncTask<Void, Void, Void> {
#Override
protected void onPreExecute() {
super.onPreExecute();
// Showing progress dialog
mProgressBar.setVisibility(View.VISIBLE);
mProgressBar.setMax(100);
}
#Override
protected Void doInBackground(Void... arg0) {
// Creating service handler class instance
ServiceHandler sh = new ServiceHandler();
// Making a request to url and getting response
String jsonArray = sh.makeServiceCall(url, ServiceHandler.GET);
//Log.d("Response: ", "> " + jsonArray);
if (jsonArray != null) {
try {
jsonObj = new JSONObject(jsonArray);
if (jsonObj.has("nextPageToken")) {
loading = true;
mNextToken = jsonObj.getString("nextPageToken");
} else {
loading = false;
}
// Getting JSON Array node
contacts = jsonObj.getJSONArray("items");
// looping through All Contacts
for (int i = 0; i < contacts.length(); i++) {
JSONObject c = contacts.getJSONObject(i);
String title = c.getJSONObject("snippet").getString("title");
String time = c.getJSONObject("snippet").getString("publishedAt");
String playlist_id = c.get("id").toString();
// Find Screen size and set the Image for this size
DisplayMetrics dm = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(dm);
double x = Math.pow(dm.widthPixels / dm.xdpi, 2);
double y = Math.pow(dm.heightPixels / dm.ydpi, 2);
double screenInches = Math.sqrt(x + y);
int inch = (int) Math.round(screenInches);
String image = null;
try {
if (inch <= 4) {
image = c.getJSONObject("snippet").getJSONObject("thumbnails").getJSONObject("medium").getString("url");
} else if (inch > 4 && inch <= 6) {
image = c.getJSONObject("snippet").getJSONObject("thumbnails").getJSONObject("medium").getString("url");
} else if (inch > 6 && inch <= 10) {
image = c.getJSONObject("snippet").getJSONObject("thumbnails").getJSONObject("medium").getString("url");
} else {
image = c.getJSONObject("snippet").getJSONObject("thumbnails").getJSONObject("default").getString("url");
}
} catch (IndexOutOfBoundsException e) {
e.printStackTrace();
}
mContact = new PlayListItem();
mContact.setmTitle(title);
mContact.setmID(playlist_id);
mContact.setmTime(time);
mContact.setmThumbnailURL(image);
mContact.setmNextToken(mNextToken);
mContactList.add(mContact);
}
} catch (JSONException e) {
e.printStackTrace();
}
} else {
Log.e("ServiceHandler", "Couldn't get any data from the url");
}
return null;
}
#Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
// Dismiss the progress dialog
if (mProgressBar.isShown())
mProgressBar.setVisibility(ProgressBar.GONE);
mAdapter.notifyDataSetChanged();
mRecyclerView.setOnScrollListener(new RecyclerView.OnScrollListener() {
#Override
public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
super.onScrolled(recyclerView, dx, dy);
visibleItemCount = mGridManager.getChildCount();
totalItemCount = mGridManager.getItemCount();
pastVisiblesItems = mGridManager.findFirstVisibleItemPosition();
if (loading) {
if ((visibleItemCount + pastVisiblesItems) >= totalItemCount) {
Log.v("...", "Last Item Wow !");
if (jsonObj.has("nextPageToken")) {
url = "https://www.googleapis.com/youtube/v3/playlists?part=snippet&channelId=UCGyZswzm4G-wEfRQHgMSAuw&maxResults=50&key=AIzaSyCi0ApXYk08YpzyEO8jYJanaud-Epti6ks&pageToken=" + mNextToken;
System.out.println("url--->" + url);
new GetContacts().execute();
} else {
url = "https://www.googleapis.com/youtube/v3/playlists?part=snippet&channelId=UCGyZswzm4G-wEfRQHgMSAuw&maxResults=50&key=AIzaSyCi0ApXYk08YpzyEO8jYJanaud-Epti6ks&pageToken=" + mNextToken;
System.out.println("url----else--->" + url);
new GetContacts().execute();
}
loading = false;
}
}
}
});
}
}
}
public class CardAdapter extends RecyclerView.Adapter<CardAdapter.ViewHolder> {
private List<PlayListItem> mItems;
private Activity activity;
public ImageLoader imageLoader;
public CardAdapter(Activity activity, List<PlayListItem> items) {
this.activity = activity;
this.mItems = items;
imageLoader = new ImageLoader(activity.getApplicationContext());
}
#Override
public ViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
View v = LayoutInflater.from(viewGroup.getContext())
.inflate(R.layout.recycler_outer_playlist_cardview, viewGroup, false);
ViewHolder viewHolder = new ViewHolder(v);
return viewHolder;
}
#Override
public void onBindViewHolder(ViewHolder viewHolder, final int i) {
System.out.println("Title Value is----------->"+mItems.get(0));
PlayListItem nature = mItems.get(i);
Log.d("Title Value is","----------->"+nature.getmTitle());
viewHolder.tvTitle.setText(nature.getmTitle());
final String playListID = nature.getmID();
final String thumnailsURL = nature.getmThumbnailURL();
final Calendar c = Calendar.getInstance();
int cur_year = c.get(Calendar.YEAR);
int cur_month = c.get(Calendar.MONTH) + 1;
int cur_day = c.get(Calendar.DAY_OF_MONTH);
int cur_hour = c.get(Calendar.HOUR_OF_DAY);
int cur_minute = c.get(Calendar.MINUTE);
// Getting updated date from url
String string = nature.getmTime();
String[] parts = string.split("-");
String part1 = parts[0]; // 004
String part2 = parts[1]; // 034556
String part3 = parts[2];
String[] part4 = part3.split("T");
String part5 = part4[0];
String part6 = part4[1];
// Toast.makeText(activity, "Given Date is : " + part1 + "/" + part2 + "/" + part3, Toast.LENGTH_LONG).show();
// Log.d("Updated Current Day", part5);
int giv_yr = Integer.parseInt(part1);
int giv_mnt = Integer.parseInt(part2);
int giv_day = Integer.parseInt(part5);
// Difference Two dates
int day_yr = 0, day_mnt = 0, day_day = 0;
if (cur_year >= giv_yr) {
if (cur_year >= giv_yr) {
day_yr = cur_year - giv_yr;
} else {
day_yr = giv_yr - cur_year;
}
if (cur_month >= giv_mnt) {
day_mnt = cur_month - giv_mnt;
} else {
day_mnt = giv_mnt - cur_month;
}
if (cur_day >= giv_day) {
day_day = cur_day - giv_day;
} else {
day_day = giv_day - cur_day;
}
}
String yr = Integer.toString(day_yr);
String mnt = Integer.toString(day_mnt);
String days = Integer.toString(day_day);
if (day_day == 0)
viewHolder.tvTime.setText("Updated Today");
else if (day_day < 7)
viewHolder.tvTime.setText("Updated " + days + " Days ago");
else if (day_day < 30) {
int week = day_day / 7;
String Week = Integer.toString(week);
viewHolder.tvTime.setText("Updated " + Week + " Weeks ago");
} else {
viewHolder.tvTime.setText("Updated " + mnt + " Months ago");
}
//imageLoader.DisplayImage(nature.getmThumbnailURL(), viewHolder.imgThumbnail);
Picasso.with(activity)
.load(nature.getmThumbnailURL())
/*.placeholder(R.drawable.my_thumnail)*/
.into(viewHolder.imgThumbnail);
viewHolder.item_view.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
Intent intent = new Intent(activity, VideoPlayActivity.class);
intent.putExtra("PLAYLIST_ID", playListID);
intent.putExtra("THUMNAIL_URL", thumnailsURL);
v.getContext().startActivity(intent);
}
});
/*System.out.println("URL -------------->"+nature.getmThumbnailURL());
// String img_url = nature.getmThumbnailURL();
try {
URL url = new URL(nature.getmThumbnailURL());
Bitmap bmp = BitmapFactory.decodeStream(url.openConnection().getInputStream());
System.out.println("Image bmp -------------->"+bmp);
//imageView.setImageBitmap(bmp);
viewHolder.imgThumbnail.setImageBitmap(bmp);
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}*/
}
#Override
public int getItemCount() {
return mItems.size();
}
class ViewHolder extends RecyclerView.ViewHolder {
public ImageView imgThumbnail;
public TextView tvTitle;
public TextView tvID;
public TextView tvTime;
public View item_view;
public ViewHolder(View itemView) {
super(itemView);
imgThumbnail = (ImageView) itemView.findViewById(R.id.img_thumbnail);
tvTitle = (TextView) itemView.findViewById(R.id.tv_title);
//tvID = (TextView) itemView.findViewById(R.id.tv_id);
tvTime = (TextView) itemView.findViewById(R.id.tv_time);
item_view = itemView;
}
}
}

I made a small mistake declaring String URL as static but it should be final also assign to another String variable. Finally set the adapter and notifyDataSetChanged where placed in onStart().
private final static String URL = "https://www.googleapis.com/youtube/v3/playlists?part=snippet&channelId=UCGyZswzm4G-wEfRQHgMSAuw&maxResults=50&key=AIzaSyCi0ApXYk08YpzyEO8jYJanaud-Epti6ks&pageToken=CDIQAQ";
private String url = URL;
JSONArray contacts = null;
private String mNextToken;
JSONObject jsonObj;
private boolean loading = true;
int visibleItemCount, totalItemCount, pastVisiblesItems;
private List<PlayListItem> mContactList;
private PlayListItem mContact;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(toolbar);
mProgressBar = (ProgressBar) findViewById(R.id.progressBar);
mRecyclerView = (RecyclerView) findViewById(R.id.recycler_view);
mRecyclerView.setHasFixedSize(true);
// Calling async task to get json
if (mContactList == null)
mContactList = new ArrayList<PlayListItem>();
System.out.println("onCreate :: Size2---->" + mContactList.size());
}
#Override
protected void onStart() {
super.onStart();
if (mContactList != null)
mContactList.clear();
url = URL;
new GetContacts().execute();
if (mAdapter == null)
mAdapter = new CardAdapter(MainActivity.this, mContactList);
mRecyclerView.setAdapter(mAdapter);
mAdapter.notifyDataSetChanged();
getScreenOrientation();
System.out.println("onStart :: Size2---->" + mContactList.size());
}
#Override
protected void onResume() {
ActivitySwitcher.animationIn(findViewById(R.id.container_first),
getWindowManager());
super.onResume();
System.out.println("onResume :: Size2---->" + mContactList.size());
mAdapter.notifyDataSetChanged();
}

query title column from database and set it to TextView

I had query title column from database and want to set it in TextView in GridView.
How?
CafeDatasource
public List<Model_Insert> findTblCafe(){
List<Model_Insert> model_Inserts = new ArrayList<Model_Insert>();
Cursor cursor = database.query(CafeDbOpenHelper.TABLE_CAFE, rtv_tbl_Cafe,
null, null, null, null, null);
Log.i("number", "return" + cursor.getCount()+ " rows");
if(cursor.getCount() > 0){
while (cursor.moveToNext()) {
Model_Insert model_Insert = new Model_Insert();
model_Insert.setCafe_Id(cursor.getInt(cursor.getColumnIndex(CafeDbOpenHelper.CAFE_ID)));
model_Insert.setCafe_Title(cursor.getString(cursor.getColumnIndex(CafeDbOpenHelper.CAFE_TITLE)));
model_Insert.setCafe_Been(cursor.getInt(cursor.getColumnIndex(CafeDbOpenHelper.CAFE_BEEN)));
model_Insert.setCafe_Want(cursor.getInt(cursor.getColumnIndex(CafeDbOpenHelper.CAFE_WANT)));
model_Insert.setCafe_Address(cursor.getString(cursor.getColumnIndex(CafeDbOpenHelper.CAFE_ADDRESS)));
model_Insert.setCafe_Thumb(cursor.getString(cursor.getColumnIndex(CafeDbOpenHelper.CAFE_THUMB)));
model_Insert.setCafe_Description(cursor.getString(cursor.getColumnIndex(CafeDbOpenHelper.CAFE_DESCRIPTION)));
model_Insert.setCafe_WifiRate(cursor.getInt(cursor.getColumnIndex(CafeDbOpenHelper.CAFE_WIFI_RATE)));
model_Insert.setCafe_CoffeeRate(cursor.getInt(cursor.getColumnIndex(CafeDbOpenHelper.CAFE_COFFEE_RATE)));
model_Insert.setCafe_Latitude(cursor.getDouble(cursor.getColumnIndex(CafeDbOpenHelper.CAFE_LATITUDE)));
model_Insert.setCafe_Longitude(cursor.getDouble(cursor.getColumnIndex(CafeDbOpenHelper.CAFE_LONGITUDE)));
model_Inserts.add(model_Insert);
}
}
return model_Inserts;
}
MainActivity
public ArrayList<HashMap<String, String>> placeList;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_card);
===============================================================
dataSource = new CafeDataSource(this);
dataSource.open();
List<Model_Insert> model_Inserts = dataSource.findTblCafe();// query database (findTblCafe)
if(model_Inserts.size() == 0){
new DownloadImageTask().execute();
model_Inserts = dataSource.findTblCafe();
}
===============================================================
} // End onCreate
public void ShowAllContent() {
GridView gridView1 = (GridView) findViewById(R.id.grid_all);
gridView1.setAdapter(new ImageAdapter(TopActivity.this, placeList));
}
public class DownloadImageTask extends AsyncTask<String, Void, Void>{
#Override
protected Void doInBackground(String... params) {
placeList = new ArrayList<HashMap<String,String>>();
JSONParser jParser = new JSONParser();
JSONObject jsonO = jParser.getJSONUrl(url);
try {
places = jsonO.getJSONArray("place");
for (int i = 0; i < places.length(); i++) {
JSONObject jobj = places.getJSONObject(i);
int cafe_id = jobj.getInt(TAG_CAFE_ID);
String cafe_title = jobj.getString(TAG_CAFE_TITLE);
int cafe_been = jobj.getInt(TAG_CAFE_BEEN);
int cafe_want = jobj.getInt(TAG_CAFE_WANT);
String cafe_address = jobj.getString(TAG_CAFE_ADDRESS);
String cafe_thumb = jobj.getString(TAG_CAFE_THUMB);
String cafe_description = jobj.getString(TAG_CAFE_DESCRIPTION);
int cafe_wifi_rate = jobj.getInt(TAG_CAFE_WIFI_RATE);
int cafe_coffee_rate = jobj.getInt(TAG_CAFE_COFFEE_RATE);
double cafe_latitude = jobj.getDouble(TAG_CAFE_LATITUDE);
double cafe_longitude = jobj.getDouble(TAG_CAFE_LONGITUDE);
// Table Save
Model_Insert model_Insert = new Model_Insert();
model_Insert.setCafe_Id(cafe_id);
model_Insert.setCafe_Been(cafe_been);
model_Insert.setCafe_Want(cafe_want);
model_Insert = dataSource.createTableCafeSave(model_Insert);
Log.i("data", " ID " + model_Insert.getCafe_Id());
// Table Cafe
model_Insert = new Model_Insert();
model_Insert.setCafe_Id(cafe_id);
model_Insert.setCafe_Title(cafe_title);
model_Insert.setCafe_Been(cafe_been);
model_Insert.setCafe_Want(cafe_want);
model_Insert.setCafe_Address(cafe_address);
model_Insert.setCafe_Thumb(cafe_thumb);
model_Insert.setCafe_Description(cafe_description);
model_Insert.setCafe_WifiRate(cafe_wifi_rate);
model_Insert.setCafe_CoffeeRate(cafe_coffee_rate);
model_Insert.setCafe_Latitude(cafe_latitude);
model_Insert.setCafe_Longitude(cafe_longitude);
model_Insert = dataSource.createTableCafe(model_Insert);
Log.i("data", " Picture " + model_Insert.getCafe_Id());
HashMap<String, String> map = new HashMap<String, String>();
map.put(TAG_CAFE_TITLE, cafe_title);
placeList.add(map);
}
// for " piture " Object in json
pictures = jsonO.getJSONArray("pictures");
for (int i = 0; i < pictures.length(); i++) {
JSONObject jObj = pictures.getJSONObject(i);
int cafe_id = jObj.getInt(TAG_CAFE_ID);
String picture_url = jObj.getString(TAG_PICTURE_URL);
// Table Picture
Model_Insert model_Insert = new Model_Insert();
model_Insert.setCafe_Id(cafe_id);
model_Insert.setPitureUrl(picture_url);
model_Insert = dataSource.createTablePicture(model_Insert);
Log.i("pic", " Picture " + model_Insert.getPitureurl());
HashMap<String, String> map = new HashMap<String, String>();
placeList.add(map);
}
} catch (JSONException e) {
// TODO: handle exception
}
return null;
}
protected void onPostExecute(Void unused) {
ShowAllContent(); // When Finish Show Content
}
}
private static class ViewHolder {
public ImageView imageview;
public TextView txtTitle;
}
public class ImageAdapter extends BaseAdapter {
private ArrayList<HashMap<String, String>> MyArr = new ArrayList<HashMap<String,String>>();
public ImageAdapter(Context c, ArrayList<HashMap<String, String>> myArrayList){
context = c;
MyArr = myArrayList;
}
#Override
public int getCount() {
return MyArr.size();
}
#Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return position;
}
#Override
public long getItemId(int position) {
return position;
}
#Override
public View getView(int position, View converView, ViewGroup parent) {
ViewHolder viewHolder = new ViewHolder();
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
if(converView == null){
converView = inflater.inflate(R.layout.grid_item, null);
}
viewHolder.imageview = (ImageView) converView.findViewById(R.id.imv_card_cafe);
viewHolder.txtTitle = (TextView) converView.findViewById(R.id.txt_title);
/* String str = "frute : juse text";
Integer len;
len = str.length();
if(len > 20){
String result = str.substring(0, 15);
viewHolder.txtTitle.setText(result);
}
else {
viewHolder.txtTitle.setText(str);
} */
=============================================================================
viewHolder.txtTitle.setText(...............................?);
=============================================================================
viewHolder.imageview.setImageResource(mThumb[position]);
return converView;
}
}

because you are getting all titles inside model_Inserts List you will need to pass this List to Custom BaseAdapter for showing in TextView as :
Change ShowAllContent() method as:
public void ShowAllContent() {
GridView gridView1 = (GridView) findViewById(R.id.grid_all);
gridView1.setAdapter(new ImageAdapter(TopActivity.this, placeList,model_Inserts));
}
and ImageAdapter constructor as :
public class ImageAdapter extends BaseAdapter {
private ArrayList<HashMap<String, String>> MyArr =
new ArrayList<HashMap<String,String>>();
List<Model_Insert> model_Inserts=null;
public ImageAdapter(Context c,
ArrayList<HashMap<String, String>> myArrayList,
List<Model_Insert> model_Inserts){
context = c;
MyArr = myArrayList;
this.model_Inserts=model_Inserts;
}
///your code here...
now use model_Inserts for getting Title to show inside getView

Develop Reference

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

Android too much work done on mainthread - android

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query title column from database and set it to TextView

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