I have search field,When i opened activity i am getting some data, i populated those data into list view Custom row. In custom row i have Text view,edit Text, textViewCancelImage. When i got response from server,parsing those response and fetch into custom rows.After that i enter some data in search field and i will get some suggestions.If i select any suggestion then i am populating same custom row to List View. When i clicked any suggestion i am getting selected value and populating same custom row. But all previous custom row Edit Text's values also changed to 0. And i am unable to delete row when i click cancel Image.
please check Activity
public class MaintainActivity extends AppCompatActivity implements View.OnClickListener {
private ProgressDialog pDialog;
private ResultVO resLogin;
private Button updateMRL,clearMRL;
#InjectView(R.id.listViewReorderLevel)
protected ListView reorderLevelListView;
private AutoCompleteTextView searchField;
OrderAdapter reorderAdapter;
ArrayList<OrderLevelsListBO> OrderLevelsListBOs;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.reorder_level);
new GetTradeNamesListAsyncTask().execute();
toolbar = (Toolbar) findViewById(R.id.tool_bar);
setSupportActionBar(toolbar);
getSupportActionBar().setDisplayShowTitleEnabled(false);
getSupportActionBar().setIcon(android.R.color.transparent);
updateMRL = (Button) findViewById(R.id.btnUpdateMRL);
clearMRL = (Button) findViewById(R.id.btnClearMRL);
searchField = (AutoCompleteTextView) findViewById(R.id.searchAutoCompleteTextViewMRL);
searchField.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(searchField.getWindowToken(), 0);
SimpleDataBO simpleDataBO = (SimpleDataBO) adapterView.getAdapter().getItem(position);
String drugName = simpleDataBO.getData();
OrderLevelsListBO OrderLevelsListBO = new OrderLevelsListBO();
OrderLevelsListBO.setTradeCompositeId(drugName);
OrderLevelsListBO.setReorderLevelInBaseUnit("0");
OrderLevelsListBOs.add(OrderLevelsListBO);
reorderAdapter.notifyDataSetChanged();
searchField.setText("");
}
});
class GetTradeNamesListAsyncTask extends AsyncTask<String, String, String> {
private ResultVO resGetTCI;
#Override
protected void onPreExecute() {
}
#Override
protected String doInBackground(String... args) {
try {
HeaderParms HeaderParms = ICommonMethods.setHeaderParams(MaintainReorderLevelActivity.this);
APIServicesImpl services = new APIServicesImpl();
resGetTCI = services.get(SimpleDataArrayListBO.class, IUrlsUtil.URL_KYM_GET_TCI, HeaderParms);
} catch (Exception e) {
e.printStackTrace();
cancel(true);
}
return null;
}
protected void onPostExecute(String file_url) {
if (resGetTCI != null) {
int appStatusCode = resGetTCI.getAppStatusCode();
if (appStatusCode == Constants.APP_STATUS_CODE_SUCCESS) {
SimpleDataArrayListBO simpleDataArrayListBO = (SimpleDataArrayListBO) resGetTCI.getPayload();
ArrayList<SimpleDataBO> simpleDataBOArrayList = simpleDataArrayListBO.getSimpleDataBOList();
if(simpleDataBOArrayList!=null) {
AutocomleteAdapter autocompleteAdapter = new AutocomleteAdapter(MaintainReorderLevelActivity.this, R.layout.drug_list_row_billing, simpleDataBOArrayList);
searchField.setAdapter(autocompleteAdapter);
searchField.setThreshold(1);
new OrderListAsy().execute();
}
} else {
String resMessage = resGetTCI.getMessages().get(0);
Toast.makeText(MaintainReorderLevelActivity.this, resMessage, Toast.LENGTH_SHORT).show();
}
} else {
ExceptionMessages.showAlertDialog(MaintainReorderLevelActivity.this, IExceptionUtil.NULL_RESPONSE_TITLE, IExceptionUtil.NULL_RESPONSE_MESSAGE, true);
}
}
}
class OrderListAsy extends AsyncTask<String, String, String> {
ResultVO resGetRL;
ProgressDialog pDialog;
#Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(MaintainReorderLevelActivity.this);
pDialog.setMessage(Utility.USER_ID_EXISTS_MESSAGE);
pDialog.setIndeterminate(false);
pDialog.setCancelable(false);
pDialog.show();
}
#Override
protected String doInBackground(String... args) {
try {
HeaderParms HeaderParms = ICommonMethods.setHeaderParams(MaintainReorderLevelActivity.this);
APIServicesImpl services = new APIServicesImpl();
resGetRL = services.get(ReorderLevelsArrayListBO.class, IUrlsUtil.URL_RL_GET_STOCKS, HeaderParms);
} catch (Exception e) {
e.printStackTrace();
cancel(true);
}
return null;
}
protected void onPostExecute(String file_url) {
if (pDialog.isShowing()) {
pDialog.dismiss();
}
if (resGetRL != null) {
int appStatusCode = resGetRL.getAppStatusCode();
if (appStatusCode == Constants.APP_STATUS_CODE_SUCCESS) {
ReorderLevelsArrayListBO reorderLevelsArrayListBO = (ReorderLevelsArrayListBO) resGetRL.getPayload();
OrderLevelsListBOs = reorderLevelsArrayListBO.getReorderLevelsList();
reorderAdapter = new OrderAdapter(MaintainReorderLevelActivity.this, OrderLevelsListBOs);
reorderLevelListView.setAdapter(reorderAdapter);
} else {
String resMessage = resGetRL.getMessages().get(0);
Toast.makeText(MaintainReorderLevelActivity.this, resMessage, Toast.LENGTH_SHORT).show();
}
} else {
ExceptionMessages.showAlertDialog(MaintainReorderLevelActivity.this, IExceptionUtil.NULL_RESPONSE_TITLE, IExceptionUtil.NULL_RESPONSE_MESSAGE, true);
}
}
}
}
MyAdapter class:
public class OrderAdapter extends BaseAdapter {
private Activity context;
ArrayList<OrderLevelsListBO> data;
OrderLevelsListBO OrderLevelsListBO;
public OrderAdapter(Activity context, ArrayList<OrderLevelsListBO> data) {
super();
this.context = context;
this.data = data;
}
#Override
public int getCount() {
return data.size();
}
#Override
public Object getItem(int position) {
return position;
}
#Override
public long getItemId(int position) {
return position;
}
private class ViewHolder {
EditText etReorderLevel;
TextView txtRLTradeName;
TextView txtDeleteMRL;
}
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
final ViewHolder holder;
LayoutInflater inflater = context.getLayoutInflater();
OrderLevelsListBO = data.get(position);
if (convertView == null) {
convertView = inflater.inflate(R.layout.reorder_level_row, null);
holder = new ViewHolder();
holder.etReorderLevel = (EditText) convertView.findViewById(R.id.edtReorderLevel);
holder.txtRLTradeName = (TextView) convertView.findViewById(R.id.txtRLTradeName);
holder.txtDeleteMRL = (TextView) convertView.findViewById(R.id.txtDeleteMRL);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
if (position % 2 == 1) {
convertView.setBackgroundColor(context.getResources().getColor(R.color.UPDATE_STOCK_LINE));
} else {
convertView.setBackgroundColor(context.getResources().getColor(R.color.WHITE));
}
if (OrderLevelsListBO.getTradeCompositeId() != null) {
holder.txtRLTradeName.setText(OrderLevelsListBO.getTradeCompositeId());
}
if (OrderLevelsListBO.getReorderLevelInBaseUnit() != null) {
holder.etReorderLevel.setText(OrderLevelsListBO.getReorderLevelInBaseUnit());
}
holder.etReorderLevel.addTextChangedListener(new TextWatcher() {
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
if (!holder.etReorderLevel.getText().toString().equals("")) {
String reorderQuantity = holder.etReorderLevel.getText().toString();
data.get(position).setReorderLevelInBaseUnit(reorderQuantity);
}
}
#Override
public void afterTextChanged(Editable s) {
}
});
holder.txtDeleteMRL.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
data.remove(position);
notifyDataSetChanged();
}
});
// OrderLevelsListBOs = data;
return convertView;
}
}
Why Don't you use recyclerview instead of a listview ?
Anyway if you go with the intention of using a listview, you've to do is create a method in your custom adapter.
Something like this:
public void addData(OrderLevelsListBO orderLevelsListBO) {
data.add(orderLevelsListBO);
}
And you call this method when you add a item.
reorderAdapter.addData(orderLevelsListBO);
Related
I need to do a search on the data in a list, make a filter. I bought some means of doing this in what seems to me simpler to implement Filtravel in adapting and instantiating their methods, but msm following the whole explanation here did not work. Someone seemed to help me and explain how to make this filter in my project ??? Thanks in advance!
Adapter
public class AdapterBDLocal extends BaseAdapter implements Filterable{
private Context mContext;
private CustomFilter filter;
private List<ProdutosPesquisa> produtosList = new ArrayList<>();
private List<ProdutosPesquisa> filterList = new ArrayList<>();
public AdapterBDLocal(Context mContext, List<ProdutosPesquisa> produtosList) {
this.mContext = mContext;
this.produtosList = produtosList;
}
#Override
public int getCount() {
return produtosList.size();
}
#Override
public Object getItem(int i) {
return produtosList.size();
}
#Override
public long getItemId(int i) {
return i;
}
#Override
public View getView(final int i, View view, ViewGroup viewGroup) {
View listItem = view;
if(listItem == null)
listItem = LayoutInflater.from(mContext).inflate(R.layout.item_lista_pesquisa,viewGroup,false);
final ProdutosPesquisa p = produtosList.get(i);
TextView nome = (TextView) listItem.findViewById(R.id.txt_nome_produto2);
nome.setText(p.getNome_completo());
TextView categoria = (TextView) listItem.findViewById(R.id.txt_categoria2);
categoria.setText(p.getCategoria());
TextView unidade = (TextView) listItem.findViewById(R.id.txt_unidade2);
unidade.setText(p.getUnidade());
Button btn_add = (Button)listItem.findViewById(R.id.btn_add);
Button btn_rem = (Button)listItem.findViewById(R.id.btn_rem);
btn_add.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
String m = p.getCodigo_barras();
if(list.size()<=9){
list.add(m);
txt.setText(list.toString());
Toast.makeText(mContext, "Adiconado", Toast.LENGTH_SHORT).show();
if(txt.getText()!= null){
}
} else{
Toast.makeText(mContext, "Sua Lista esta grande demais!", Toast.LENGTH_SHORT).show();
}
}
});
btn_rem.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
String m = p.getCodigo_barras();
list.remove(m);
txt.setText(list.toString());
Toast.makeText(mContext, "Removido da lista!", Toast.LENGTH_SHORT).show();
}
});
return listItem;
}
#Override
public Filter getFilter() {
// TODO Auto-generated method stub
if(filter == null)
{
filter=new CustomFilter();
}
return filter;
}
//INNER CLASS
class CustomFilter extends Filter
{
#Override
protected FilterResults performFiltering(CharSequence constraint) {
// TODO Auto-generated method stub
FilterResults results=new FilterResults();
if(constraint != null && constraint.length()>0)
{
//CONSTARINT TO UPPER
constraint=constraint.toString().toUpperCase();
ArrayList<ProdutosPesquisa> filters=new ArrayList<ProdutosPesquisa>();
//get specific items
for(int i=0;i<filterList.size();i++)
{
if(filterList.get(i).getNome_completo().toUpperCase().contains(constraint))
{
ProdutosPesquisa p = new ProdutosPesquisa();
p.setNome_completo(filterList.get(i).getNome_completo());
filters.add(p);
}
}
results.count=filters.size();
results.values=filters;
}else
{
results.count=filterList.size();
results.values=filterList;
}
return results;
}
#Override
protected void publishResults(CharSequence constraint, FilterResults results) {
// TODO Auto-generated method stub
produtosList = (ArrayList<ProdutosPesquisa>) results.values;
notifyDataSetChanged();
}
}
}
Activity
public class PesquisaTesteActivity extends AppCompatActivity {
public static TextView txt;
List<ProdutosPesquisa> lista_produtos;
ListView lv;
AdapterBDLocal adapter;
public static ArrayList list = new ArrayList();
private SearchView searchView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_pesquisa_teste);
lv = (ListView)findViewById(R.id.lv2);
searchView = (SearchView) findViewById(R.id.search);
searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
#Override
public boolean onQueryTextSubmit(String query) {
return false;
}
#Override
public boolean onQueryTextChange(String newText) {
adapter.getFilter().filter(newText);
return false;
}
});
lista_produtos = DataBaseClass.getInstance(getApplicationContext()).getAllProdutos();
txt = findViewById(R.id.textView);
adapter = new AdapterBDLocal(PesquisaTesteActivity.this, lista_produtos);
lv.setAdapter(adapter);
}
}
Here is my adapter class, very simple to use just modify it according to your needs:
public class DriverListAdapter extends BaseAdapter {
// Declare Variables \\
Context mContext;
LayoutInflater inflater;
private List<DriverList> driverLists = null;
private ArrayList<DriverList> arrayListDriverLists = null;
AppCompatActivity act;
public DriverListAdapter(Context context,
List<DriverList> driverLists) {
mContext = context;
this.driverLists = driverLists;
arrayListDriverLists = new ArrayList<>(driverLists);
inflater = LayoutInflater.from(mContext);
act = (AppCompatActivity) context;
}
public class ViewHolder {
TextView driverNameTv, carNameTv;
}
#Override
public int getCount() {
return driverLists.size();
}
#Override
public DriverList getItem(int position) {
return driverLists.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
public View getView(final int position, View view, ViewGroup parent) {
final ViewHolder holder;
if (view == null) {
holder = new ViewHolder();
view = inflater.inflate(R.layout.lv_items_driver_list, null);
holder.driverNameTv = view.findViewById(R.id.lv_items_drivers_name_tv);
holder.carNameTv = view.findViewById(R.id.lv_items_drivers_car_tv);
view.setTag(holder);
} else {
holder = (ViewHolder) view.getTag();
}
holder.driverNameTv.setText(driverLists.get(position).getDriverName());
holder.carNameTv.setText(driverLists.get(position).getDriverCar());
return view;
}
/**
* Filter Class for item searching
*
* #param charText Text to be searched
*/
public void filter(String charText) {
charText = charText.toLowerCase(Locale.getDefault());
driverLists.clear();
if (charText.length() == 0) {
driverLists.addAll(arrayListDriverLists);
} else {
for (DriverList driverList : arrayListDriverLists) {
if (driverList.getDriverName().toLowerCase(Locale.getDefault()) // driverList.getDriverName() will let the user to search driver's name
.contains(charText)) {
driverLists.add(driverList);
}
}
}
notifyDataSetChanged();
}
}
Here is my pojo class:
public class DriverList {
String driverName, driverEmailId, driverCar, timestamp;
public String getDriverName() {
return driverName;
}
public void setDriverName(String driverName) {
this.driverName = driverName;
}
public String getDriverEmailId() {
return driverEmailId;
}
public void setDriverEmailId(String driverEmailId) {
this.driverEmailId = driverEmailId;
}
public String getDriverCar() {
return driverCar;
}
public void setDriverCar(String driverCar) {
this.driverCar = driverCar;
}
public String getTimestamp() {
return timestamp;
}
public void setTimestamp(String timestamp) {
this.timestamp = timestamp;
}
}
Here is activity code for the editText where you will perform search:
final EditText driverSearchEt = dialog.findViewById(R.id.custom_dialog_select_car_search_et);
driverSearchEt.addTextChangedListener(new TextWatcher() {
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
#Override
public void afterTextChanged(Editable s) {
if (driverSearchEt.getText().toString().length() == 0) {
if (carsListAdapter != null) {
carsListAdapter.filter("");
}
} else {
String text = driverSearchEt.getText().toString().toLowerCase(Locale.getDefault());
if (carsListAdapter != null) {
carsListAdapter.filter(text);
}
}
}
});
And don't forget to initialize your listview and adapter. Hope it helps as it is working for me.
I am trying to use TextChangedListener to implement search functionality on my ListView. But after adding some character in EditText; the ListView goes blank. I have implemented filter method in my ArrayAdapter class.
I am getting my data from JSON.
Here's my code:
UserList.java
public class UserList extends AppCompatActivity {
private ListView listView;
private ArrayList<MyDataModel> list;
private MyArrayAdapter adapter;
private EditText search;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.user_list);
search = (EditText) findViewById(R.id.search);
//Array List for Binding Data from JSON to this List
list = new ArrayList<>();
//Binding that List to Adapter
adapter = new MyArrayAdapter(this, list);
//Getting List and Setting List Adapter
listView = (ListView) findViewById(R.id.listView);
listView.setAdapter(adapter);
listView.setTextFilterEnabled(true);
search.addTextChangedListener(new TextWatcher() {
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
String text = search.getText().toString().toLowerCase(Locale.getDefault());
adapter.filter(text);
}
#Override
public void afterTextChanged(Editable s) {
}
});
//Checking Internet Connection
if (InternetConnection.checkConnection(getApplicationContext())) {
new GetDataTask().execute();
} else {
Snackbar.make(findViewById(R.id.parentLayout),"Internet Connection Not Available", Snackbar.LENGTH_LONG).show();
}
}
//Creating Get Data Task for Getting Data From Web
class GetDataTask extends AsyncTask<Void, Void, Void> {
ProgressDialog dialog;
int jIndex;
int x;
#Override
protected void onPreExecute() {
super.onPreExecute();
//Progress Dialog for User Interaction
x=list.size();
if(x==0)
jIndex=0;
else
jIndex=x;
dialog = new ProgressDialog(UserList.this);
dialog.setTitle("Please Wait..."+x);
dialog.setMessage("Retrieving Data");
dialog.show();
}
#Nullable
#Override
protected Void doInBackground(Void... params) {
//Getting JSON Object from Web Using okHttp
JSONObject jsonObject = JSONParser.getDataFromWeb();
try {
if (jsonObject != null) {
if(jsonObject.length() > 0) {
JSONArray array = jsonObject.getJSONArray(Keys.KEY_CONTACTS);
//Check Length of Array...
int lenArray = array.length();
if(lenArray > 0) {
for( ; jIndex < lenArray; jIndex++) {
//Creating Every time New Object and adding to List
MyDataModel model = new MyDataModel();
JSONObject innerObject = array.getJSONObject(jIndex);
String name = innerObject.getString(Keys.KEY_NAME);
model.setName(name);
list.add(model);
}
}
}
} else {
}
} catch (JSONException je) {
Log.i(JSONParser.TAG, "" + je.getLocalizedMessage());
}
return null;
}
#Override
protected void onPostExecute(Void aVoid) {
super.onPostExecute(aVoid);
dialog.dismiss();
//Checking if List size if more than zero then update ListView
if(list.size() > 0) {
adapter.notifyDataSetChanged();
} else {
Snackbar.make(findViewById(R.id.parentLayout), "No Data Found", Snackbar.LENGTH_LONG).show();
}
}
}
}
I have implemented the filter method in my ArrayAdapter class.
Here's my ArrayAdapter class:
MyArrayAdapter.java
public class MyArrayAdapter extends ArrayAdapter<MyDataModel> implements Filterable{
List<MyDataModel> modelList;
Context context;
private LayoutInflater mInflater;
private ArrayList<MyDataModel> arrayList;
public MyArrayAdapter(Context context, List<MyDataModel> objects) {
super(context, 0, objects);
this.context = context;
this.mInflater = LayoutInflater.from(context);
modelList = objects;
this.arrayList = new ArrayList<MyDataModel>();
this.arrayList.addAll(modelList);
}
#Override
public MyDataModel getItem(int position) {
return modelList.get(position);
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
final ViewHolder vh;
if (convertView == null) {
View view = mInflater.inflate(R.layout.layout_row_view, parent, false);
vh = ViewHolder.create((RelativeLayout) view);
view.setTag(vh);
} else {
vh = (ViewHolder) convertView.getTag();
}
MyDataModel item = getItem(position);
vh.textViewName.setText(item.getName());
return vh.rootView;
}
private static class ViewHolder {
public final RelativeLayout rootView;
public final TextView textViewName;
private ViewHolder(RelativeLayout rootView, TextView textViewName) {
this.rootView = rootView;
this.textViewName = textViewName;
}
public static ViewHolder create(RelativeLayout rootView) {
TextView textViewName = (TextView) rootView.findViewById(R.id.textViewName);
return new ViewHolder(rootView, textViewName);
}
}
// Filter Class
public void filter(String charText) {
charText = charText.toLowerCase(Locale.getDefault());
modelList.clear();
if (charText.length() == 0) {
modelList.addAll(arrayList);
} else {
for (MyDataModel wp : arrayList) {
if (wp.getName().toLowerCase(Locale.getDefault()).contains(charText)) {
modelList.add(wp);
}
}
}
notifyDataSetChanged();
}
Call search function from aftertTexChange
search.addTextChangedListener(new TextWatcher() {
#Override
public void beforeTextChanged(CharSequence s, int start, int count, int after) {
}
#Override
public void onTextChanged(CharSequence s, int start, int before, int count) {
}
#Override
public void afterTextChanged(Editable s) {
// i have updated this
String text = e.toString().toLowerCase(Locale.getDefault());
adapter.filter(text);
}
});
now your search method should like this
public void filter(String charText) {
charText = charText.toLowerCase(Locale.getDefault());
modelList.clear();
// add this one here
notifyDataSetChanged();
if (charText.length() == 0) {
modelList.addAll(arrayList);
} else {
// change this for loop
for (int i = 0; i< arrayList.size(); i++) {
if (arrayList.get(i).getName().toLowerCase(Locale.getDefault()).contains(charText)) {
modelList.add(arrayList.get(i));
}
}
}
notifyDataSetChanged();
}
List view of ratings I am getting from web service I need to store the response of ratings in database. Ratings are storing but not according to the position if I given ratings to 1st person it is storing it to another please help me out.
public class FacultyListAdapter extends BaseAdapter {
private final Context context;
public FacultyListAdapter(Context context) {
this.context = context;
if (!facultylist.isEmpty()) {
// courseEmptyLayout.setVisibility(LinearLayout.GONE);
}
}
#Override
public View getView(final int position, View convertView,
ViewGroup parent) {
final ViewHolder TabviewHolder;
// convertView = null;
if (convertView == null) {
TabviewHolder = new ViewHolder();
//LayoutInflater inflater = getLayoutInflater();
inflater = getLayoutInflater();
convertView = inflater.inflate(R.layout.list_item_feedback,
parent, false);
TabviewHolder.FacultyName = (TextView) convertView.findViewById(R.id.FacultyName);//facultyname
TabviewHolder.rating = (RatingBar) convertView.findViewById(R.id.rating);//rating starts
TabviewHolder.Submit = (Button) convertView.findViewById(R.id.btnSubmit);
// Save the holder with the view
convertView.setTag(TabviewHolder);
} else {
TabviewHolder = (ViewHolder) convertView.getTag();
}
final Faculty mFac = facultylist.get(position);//*****************************NOTICE
// TabviewHolder.rating.setOnRatingBarChangeListener(setOnRatingBarChangeListener(TabviewHolder, position));
TabviewHolder.rating.setTag(position);
TabviewHolder.FacultyName.setText(mFac.getEmployeename());
// TabviewHolder.FacultyName.setTag(position);
my_name = mFac.getEmployeename().toString();
my_email = mFac.getEmployeeid().toString();
feedbackresult = String.valueOf(rating);
// ratingBar.setRating(rating);
//my_rating = mFac.getRatingStar();
TabviewHolder.rating.setRating(mFac.getRatingStar());
// TabviewHolder.rating.setTag(position);
// my_rating = hi.toString();
// rating.setOnRatingBarChangeListener(getApplicationContext());
// TabviewHolder.ModuleName.setText(mFac.getSubject());
TabviewHolder.rating.setOnRatingBarChangeListener(new RatingBar.OnRatingBarChangeListener() {
public void onRatingChanged(RatingBar ratingBar, float rating,
boolean fromUser) {
feedbackresult = String.valueOf(rating);
hi = feedbackresult;
// if(!fromUser) return;
// Faculty item = getItem(position);
// item.setRatingStar(rating);
int index = (Integer) (ratingBar.getTag());
mFac.setRatingStar(Float.parseFloat(feedbackresult));
//amount=Float.parseFloat(feedbackresult);
// TabviewHolder.rating.setRating(Float.parseFloat(feedbackresult));
Log.d("feedback", "feedback is: " + feedbackresult);
}
});
return convertView;
}
/*private RatingBar.OnRatingBarChangeListener onRatingChangedListener(final ViewHolder holder, final int position) {
return new RatingBar.OnRatingBarChangeListener() {
#Override
public void onRatingChanged(RatingBar ratingBar, float v, boolean b) {
FacultyName item = getItem(position);
item.setRatingStar(v);
Log.i("Adapter", "star: " + v);
}
};
}*/
#Override
public int getCount() {
return facultylist.size();
}
#Override
public Faculty getItem(int position) {
return facultylist.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
}
static class ViewHolder {
TextView FacultyName;
RatingBar rating;
Button Submit;
}
private class FacultySyncerBg extends AsyncTask<String, Integer, Void> {
ProgressDialog progressDialog;
#Override
protected void onPreExecute() {
// dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);
progressDialog = ProgressDialog.show(Feedback.this, "Faculty Feedback!", "Fetching Faculty List", true);
}
#Override
protected Void doInBackground(String... params) {
//CALLING WEBSERVICE
Faculty(programtype);
return null;
}
#Override
protected void onPostExecute(Void result) {
if (!facultylist.isEmpty()) {
// FacultyList.setVisibiltity(View.VISIBLE) ;
courseEmptyLayout.setVisibility(LinearLayout.GONE);
if (FacultyList.getAdapter() != null) {
if (FacultyList.getAdapter().getCount() == 0) {
FacultyList.setAdapter(facultyListAdapter);
} else {
facultyListAdapter.notifyDataSetChanged();
}
} else {
FacultyList.setAdapter(facultyListAdapter);
}
} else {
courseEmptyLayout.setVisibility(LinearLayout.VISIBLE);
// FacultyList.setVisibiltity(View.GONE) ;
}
progressDialog.dismiss();
}
}
/* #Override
public void setUserVisibleHint(boolean isVisibleToUser) {
super.setUserVisibleHint(isVisibleToUser);
if (isVisibleToUser && isResumed()) {
new FacultySyncerBg().execute("");
}
}//end**/
//**************************SECOND ASYNC TASK*********************************
private class SendFeedbackSyncerBg extends AsyncTask<String, Void, Void> {
ProgressDialog progressDialog;
#Override
protected void onPreExecute() {
progressDialog = ProgressDialog.show(Feedback.this, "Faculty Feedback!", "Uploading your ratings", true);
}
#Override
protected Void doInBackground(String... params) {
//Call Web Method from webService
// FeedBackResponse=WebService.sendfeedback(programtype,employeemailid,employeename,feedbackresult);
// uploaddata = parid(faculty_name, email, rate, "getUserInfo");
uploaddata = parid(rate, my_name, my_email, "getUserInfo");
return null;
}// doInBackground Process
#Override
//Once WebService returns response
protected void onPostExecute(Void result) {
progressDialog.dismiss();
if (uploaddata == false) {
Toast.makeText(getApplicationContext(), "Not Done!", Toast.LENGTH_SHORT).show();
} else {
courseEmptyLayout.setVisibility(LinearLayout.GONE);
Toast.makeText(getApplicationContext(), "Thanks for Feedback!!", Toast.LENGTH_SHORT).show();
}
}// End of onPostExecute
/* #Override
protected void onPreExecute() {
progressDialog = ProgressDialog.show(getApplicationContext(), "Faculty Feedback!", "Uploading your ratings", true);
}*/
}
Hello to all android folks over there!!
I want to get list of objects from web service and want to display them in list view.Now i am able to fetch those values and collected them in arraylist.But i am facing problem to display them in list view.below is my code.
Using everyones suggestion ,i solved my problem.Thats the spirit of android buddies.I am pasting my answer in UPDATED block.Hope it will be helpful in future.
UPDATED
public class TabFragment2 extends android.support.v4.app.Fragment {
ListView FacultyList;
View rootView;
LinearLayout courseEmptyLayout;
FacultyListAdapter facultyListAdapter;
String feedbackresult,programtype,programname;
Boolean FeedBackResponse;
String FacultiesList[];
public ArrayList<Faculty> facultylist = new ArrayList<Faculty>();
SharedPreferences pref;
FacultyListAdapter adapter;
SessionSetting session;
public TabFragment2(){
}
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
pref = getActivity().getSharedPreferences("prefbook", getActivity().MODE_PRIVATE);
programtype = pref.getString("programtype", "NOTHINGpref");
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
rootView = inflater.inflate(R.layout.activity_studenttab2, container, false);
session = new SessionSetting(getActivity());
new FacultySyncerBg().execute("");
courseEmptyLayout = (LinearLayout) rootView.findViewById(R.id.feedback_empty_layout);
FacultyList = (ListView) rootView.findViewById(R.id.feedback_list);
facultyListAdapter = new FacultyListAdapter(getActivity());
FacultyList.setEmptyView(rootView.findViewById(R.id.feedback_list));
FacultyList.setAdapter(facultyListAdapter);
return rootView;
}
public class FacultyListAdapter extends BaseAdapter {
private final Context context;
public FacultyListAdapter(Context context) {
this.context = context;
if (!facultylist.isEmpty())
courseEmptyLayout.setVisibility(LinearLayout.GONE);
}
#Override
public View getView(final int position, View convertView,
ViewGroup parent) {
final ViewHolder TabviewHolder;
if (convertView == null) {
TabviewHolder = new ViewHolder();
LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.list_item_feedback,
parent, false);
TabviewHolder.FacultyName = (TextView) convertView.findViewById(R.id.FacultyName);//facultyname
TabviewHolder.rating = (RatingBar) convertView.findViewById(R.id.rating);//rating starts
TabviewHolder.Submit = (Button) convertView.findViewById(R.id.btnSubmit);
// Save the holder with the view
convertView.setTag(TabviewHolder);
} else {
TabviewHolder = (ViewHolder) convertView.getTag();
}
final Faculty mFac = facultylist.get(position);//*****************************NOTICE
TabviewHolder.FacultyName.setText(mFac.getEmployeename());
// TabviewHolder.ModuleName.setText(mFac.getSubject());
TabviewHolder.rating.setOnRatingBarChangeListener(new RatingBar.OnRatingBarChangeListener() {
public void onRatingChanged(RatingBar ratingBar, float rating,
boolean fromUser) {
feedbackresult =String.valueOf(rating);
}
});
return convertView;
}
#Override
public int getCount() {
return facultylist.size();
}
#Override
public Object getItem(int position) {return facultylist.get(position);
}
#Override
public long getItemId(int position) {
return position;
}
}
static class ViewHolder {
TextView FacultyName;
RatingBar rating;
Button Submit;
}
private class FacultySyncerBg extends AsyncTask<String, Integer, Void> {
ProgressDialog progressDialog;
#Override
protected void onPreExecute() {
progressDialog= ProgressDialog.show(getActivity(), "Faculty Feedback!","Fetching Faculty List", true);
}
#Override
protected Void doInBackground(String... params) {
//CALLING WEBSERVICE
Faculty(programtype);
return null;
}
#Override
protected void onPostExecute(Void result) {
/*if (FacultyList.getAdapter() != null) {
if (FacultyList.getAdapter().getCount() == 0) {
FacultyList.setAdapter(facultyListAdapter);
} else
{
facultyListAdapter.notifyDataSetChanged();
}
} else {
FacultyList.setAdapter(facultyListAdapter);
}
progressDialog.dismiss();*/
if (!facultylist.isEmpty()) {
// FacultyList.setVisibiltity(View.VISIBLE) ;
courseEmptyLayout.setVisibility(LinearLayout.GONE);
if (FacultyList.getAdapter() != null)
{
if (FacultyList.getAdapter().getCount() == 0)
{
FacultyList.setAdapter(facultyListAdapter);
}
else
{
facultyListAdapter.notifyDataSetChanged();
}
}
else
{
FacultyList.setAdapter(facultyListAdapter);
}
}else
{
courseEmptyLayout.setVisibility(LinearLayout.VISIBLE);
// FacultyList.setVisibiltity(View.GONE) ;
}
progressDialog.dismiss();
}
}
#Override
public void setUserVisibleHint(boolean isVisibleToUser) {
super.setUserVisibleHint(isVisibleToUser);
if (isVisibleToUser && isResumed()) {
new FacultySyncerBg().execute("");
}
}//end*
//**************************WEBSERVICE CODE***********************************
public void Faculty(String programtype)
{
String URL ="http://detelearning.cloudapp.net/det_skill_webservice/service.php?wsdl";
String METHOD_NAMEFACULTY = "getUserInfo";
String NAMESPACEFAC="http://localhost", SOAPACTIONFAC="http://detelearning.cloudapp.net/det_skill_webservice/service.php/getUserInfo";
String faculty[]=new String[4];//changeit
String webprogramtype="flag";
String programname="DESHPANDE SUSANDHI ELECTRICIAN FELLOWSHIP";
// Create request
SoapObject request = new SoapObject(NAMESPACEFAC, METHOD_NAMEFACULTY);
request.addProperty("fellowshipname", programname);
// Create envelope
SoapSerializationEnvelope envelope = new SoapSerializationEnvelope(SoapEnvelope.VER11);
// Set output SOAP object
envelope.setOutputSoapObject(request);
// Create HTTP call object
HttpTransportSE androidHttpTransport = new HttpTransportSE(URL);
try {
//my code Calling Soap Action
androidHttpTransport.call(SOAPACTIONFAC, envelope);
// ArrayList<Faculty> facultylist = new ArrayList<Faculty>();
java.util.Vector<SoapObject> rs = (java.util.Vector<SoapObject>) envelope.getResponse();
if (rs != null)
{
for (SoapObject cs : rs)
{
Faculty rp = new Faculty();
rp.setEmployeename(cs.getProperty(0).toString());//program name
rp.setEmployeeid(cs.getProperty(1).toString());//employee name
facultylist.add(rp);
}
}
}
catch (Exception e) {
e.printStackTrace();
}
}
}
if (lstView.getAdapter() != null) {
if (lstView.getAdapter().getCount() == 0) {
lstView.setAdapter(finalAdapter);
} else {
finalAdapter.notifyDataSetChanged();
}
} else {
lstView.setAdapter(finalAdapter);
}
and setVisibiltity(View.VISIBLE)for listview
Put this code here
#Override
protected void onPostExecute(Void result) {
if (!facultylist.isEmpty()) {
FacultyList.setVisibiltity(View.VISIBLE) ;
courseEmptyLayout.setVisibility(LinearLayout.GONE);
if (FacultyList.getAdapter() != null) {
if (FacultyList.getAdapter().getCount() == 0) {
FacultyList.setAdapter(facultyListAdapter);
} else {
facultyListAdapter.notifyDataSetChanged();
}
} else {
FacultyList.setAdapter(facultyListAdapter);
}
}else{
courseEmptyLayout.setVisibility(LinearLayout.VISIBLE);
FacultyList.setVisibiltity(View.GONE) ;
}
progressDialog.dismiss();
}
you can try this:
this is the adapter class code.
public class CustomTaskHistory extends ArrayAdapter<String> {
private Activity context;
ArrayList<String> listTasks = new ArrayList<String>();
String fetchRefID;
StringBuilder responseOutput;
ProgressDialog progress;
String resultOutput;
public String getFetchRefID() {
return fetchRefID;
}
public void setFetchRefID(String fetchRefID) {
this.fetchRefID = fetchRefID;
}
public CustomTaskHistory(Activity context, ArrayList<String> listTasks) {
super(context, R.layout.content_main, listTasks);
this.context = context;
this.listTasks = listTasks;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = context.getLayoutInflater();
View listViewItem = inflater.inflate(R.layout.list_task_history, null, true);
TextView textViewName = (TextView) listViewItem.findViewById(R.id.textViewName);
LinearLayout linearLayout = (LinearLayout) listViewItem.findViewById(R.id.firstLayout);
//System.out.println("client_id" + _clientID);
//TextView textViewDesc = (TextView) listViewItem.findViewById(R.id.textViewDesc);
//ImageView image = (ImageView) listViewItem.findViewById(R.id.imageView);
if (position % 2 != 0) {
linearLayout.setBackgroundResource(R.color.sky_blue);
} else {
linearLayout.setBackgroundResource(R.color.white);
}
textViewName.setText(listTasks.get(position));
return listViewItem;
}
}
and now in the parent class you must have already added a list view in your xml file so now display code for it is below:
CustomTaskHistory customList = new CustomTaskHistory(TaskHistory.this, task_history_name);
listView = (ListView) findViewById(R.id.listView);
listView.setAdapter(customList);
you can also perform any action on clicking cells of listview.If needed code for it is below add just below the above code:
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
Intent nextScreen2 = new Intent(getApplicationContext(), SubscribeProgrammes.class);
nextScreen2.putExtra("CLIENT_ID", _clientID);
nextScreen2.putExtra("REFERENCE_ID", reference_IDs.get(i));
startActivity(nextScreen2);
Toast.makeText(getApplicationContext(), "You Clicked " + task_list.get(i), Toast.LENGTH_SHORT).show();
}
});
I've custom adapter that populates custom listview with data fetched from server. What I want is check if adapter is empty and append data to listview if it is empty else fill the listview with data and notifyDataSetChanged. I'm implementing OnScrollListener to load more data from server. But adapter never is empty and always notifyDataSetChanged is called.
My List Activity
public class ListResultActivity extends Activity implements OnScrollListener{
private ArrayList<BusinessListData> businesses;
private ListView businessList;
private LayoutInflater layoutInflator;
private BusinessListIconTask imgFetcher;
BusinessListDataAdapter adapter;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.businesslist);
this.businessList = (ListView) findViewById(R.id.lvBusinesslist);
this.adapter= new BusinessListDataAdapter(this,
this.imgFetcher, this.layoutInflator, this.businesses);
getData();
businessList.setOnScrollListener(this);
}
#Override
public Object onRetainNonConfigurationInstance() {
Object[] myStuff = new Object[2];
myStuff[0] = this.businesses;
myStuff[1] = this.imgFetcher;
return myStuff;
}
/**
* Bundle to hold refs to row items views.
*
*/
public static class MyViewHolder {
public TextView businessName, businessAddress, phoneNo;
public Button btnProfile;
public ImageView icon;
public BusinessListData business;
}
public void setBusinesses(ArrayList<BusinessListData> businesses) {
this.imgFetcher = new BusinessListIconTask(this);
this.layoutInflator = LayoutInflater.from(this);
this.businesses = businesses;
if(adapter !=null){
this.adapter.notifyDataSetChanged();
}else{
this.adapter= new BusinessListDataAdapter(this,
this.imgFetcher, this.layoutInflator, this.businesses);
businessList.setAdapter(adapter);
}
}
private void getData() {
// TODO Auto-generated method stub
Intent myIntent = getIntent();
// gets the arguments from previously created intent
String metroTxt = myIntent.getStringExtra("key");
String metroLoc = myIntent.getStringExtra("loc");
String metroId = myIntent.getStringExtra("qt");
BusinessListApiTask spTask = new BusinessListApiTask(
ListResultActivity.this);
try {
spTask.execute(metroTxt, metroLoc, metroId);
} catch (Exception e) {
spTask.cancel(true);
}
}
#Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
// TODO Auto-generated method stub
}
#Override
public void onScroll(AbsListView view, int firstVisibleItem,
int visibleItemCount, int totalItemCount) {
// TODO Auto-generated method stub
if (businessList.getLastVisiblePosition() == totalItemCount - 1) {
getData();
adapter.notifyDataSetChanged();
Log.d("test count", "abc"+totalItemCount);
}
}
}
Class to fetch data from server and set to adapter
public class BusinessListApiTask extends AsyncTask<String, Integer, String> {
private ProgressDialog progDialog;
private Context context;
private ListResultActivity activity;
private static final String debugTag = "sodhpuch";
HashMap<String, String> queryValues;
/**
* Construct a task
*
* #param activity
*/
public BusinessListApiTask(ListResultActivity activity) {
// TODO Auto-generated constructor stub
super();
this.activity = activity;
this.context = this.activity.getApplicationContext();
}
#Override
protected void onPreExecute() {
super.onPreExecute();
progDialog = ProgressDialog.show(this.activity, "Search", this.context
.getResources().getString(R.string.looking_for_business), true,
false);
}
#Override
protected String doInBackground(String... params) {
try {
// Log.d(debugTag, "Background:" +
// Thread.currentThread().getName());
String result = BusinessListHelper.downloadFromServer(params);
// try {
//
// updateSQLite(result);
//
// } catch (Exception e) {
// return result;
// }
Log.d("result", result);
return result;
} catch (Exception e) {
return new String();
}
}
#Override
protected void onPostExecute(String result) {
ArrayList<BusinessListData> businessData = new ArrayList<BusinessListData>();
progDialog.dismiss();
try {
JSONObject respObj = new JSONObject(result);
int success = respObj.getInt("success");
Log.d("Success", "abc"+success);
if (success == 1) {
JSONArray tracks = respObj.getJSONArray("idioms");
for (int i = 0; i < tracks.length(); i++) {
JSONObject track = tracks.getJSONObject(i);
String businessName = track.getString("name");
String businessAddress = track.getString("address");
String phone = track.getString("phone");
String id = track.getString("id");
String deals_in = track.getString("deals_in");
businessData.add(new BusinessListData(businessName,
businessAddress, id, phone, deals_in));
}
} else {
Log.d("Success", "first"+success);
// Log.d(debugTag, "Background:" + result);
// DBController controller = new DBController(context);
// businessData = controller.getBusinessList();
return ;
}
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// }
this.activity.setBusinesses(businessData);
}
My Adapter
public class BusinessListDataAdapter extends BaseAdapter implements
OnClickListener {
private static final String debugTag = "BusinessListDataAdapter";
private ListResultActivity activity;
private BusinessListIconTask imgFetcher;
private LayoutInflater layoutInflater;
private ArrayList<BusinessListData> businesses;
BusinessListData business;
public BusinessListDataAdapter(ListResultActivity a,
BusinessListIconTask i, LayoutInflater l,
ArrayList<BusinessListData> data) {
this.activity = a;
this.imgFetcher = i;
this.layoutInflater = l;
this.businesses = data;
}
#Override
public int getCount() {
return this.businesses.size();
}
public void clear()
{
businesses.clear();
notifyDataSetChanged();
}
#Override
public boolean areAllItemsEnabled() {
return true;
}
#Override
public Object getItem(int arg0) {
return null;
}
#Override
public long getItemId(int pos) {
return pos;
}
#Override
public View getView(int pos, View convertView, ViewGroup parent) {
MyViewHolder holder;
if (convertView == null) {
convertView = layoutInflater.inflate(R.layout.trackrow, parent,
false);
holder = new MyViewHolder();
holder.businessName = (TextView) convertView
.findViewById(R.id.tvBusinessName);
holder.businessAddress = (TextView) convertView
.findViewById(R.id.tvAddress);
holder.phoneNo = (TextView) convertView.findViewById(R.id.tvPhone);
holder.icon = (ImageView) convertView.findViewById(R.id.album_icon);
holder.btnProfile = (Button) convertView
.findViewById(R.id.btnProfile);
holder.btnProfile.setTag(holder);
convertView.setTag(holder);
} else {
holder = (MyViewHolder) convertView.getTag();
}
convertView.setOnClickListener(this);
business= businesses.get(pos);
holder.business = business;
holder.businessName.setText(business.getName());
holder.businessAddress.setText(business.getAddress());
holder.phoneNo.setText(business.getPhone());
holder.btnProfile.setOnClickListener(this);
// if(track.getImageUrl() != null) {
// holder.icon.setTag(track.getImageUrl());
// Drawable dr = imgFetcher.loadImage(this, holder.icon);
// if(dr != null) {
// holder.icon.setImageDrawable(dr);
// }
// } else {
holder.icon.setImageResource(R.drawable.filler_icon);
// }
return convertView;
}
#Override
public void onClick(View v) {
String deals_in = business.getDeals().toString();
Log.d("name", deals_in);
MyViewHolder holder = (MyViewHolder) v.getTag();
if (v instanceof Button) {
Intent profile = new Intent(activity,
ProfileActivity.class);
profile.putExtra("deals_in", deals_in);
profile.putExtra("phone", holder.business.getPhone());
profile.putExtra("address", holder.business.getAddress());
profile.putExtra("name", holder.business.getName());
this.activity.startActivity(profile);
} else if (v instanceof View) {
Log.d("test","call testing");
Intent intent = new Intent(Intent.ACTION_CALL);
intent.setData(Uri.parse("tel:" +holder.business.getPhone()));
this.activity.startActivity(intent);
}
Log.d(debugTag, "OnClick pressed.");
}
}
Try this way,hope this will help you to solve your problem.
public void setBusinesses(ArrayList<BusinessListData> businesses) {
imgFetcher = new BusinessListIconTask(this);
layoutInflator = LayoutInflater.from(this);
if(this.businesses == null || adapter==null){
this.businesses = new ArrayList<BusinessListData>();
adapter= new BusinessListDataAdapter(this,imgFetcher,layoutInflator,this.businesses);
businessList.setAdapter(adapter);
}
this.businesses.addAll(businesses);
adapter.notifyDataSetChanged();
}
You have the adapter object in your setBusinesses Method. You just need to check the size of the adapter too as follows which is solve your problem.
if(adapter !=null && adapter.getCount()>0)
{
this.adapter.notifyDataSetChanged();
}
else
{
this.adapter= new BusinessListDataAdapter(this,
this.imgFetcher, this.layoutInflator, this.businesses);
businessList.setAdapter(adapter);
}
this will check the size of your BusinessListData object in the adapter and this will not initialize the adapter again and again.
Hope this Solves your problem.
Thank You!
Change use of OnScrollListener. Use Asynctask class and onPreExecute() set adapter as null. Load data in doInBackground() method and call custom adapter in onPostExecute(). I hope it 'll work fine.