Can anyone help me with figuring out why my listview repeats the results it gets from the database. I am using a Listview with Checkbox. Here is my code below.
public class AccessLevels extends Fragment {
MyAdminAdapter adminAdapter = null;
Guards guards;
ListView listView;
public ArrayList<Guards> guardsName;
public String str_name;
public boolean isAdmin;
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_access_levels, container, false);
listView = (ListView)view.findViewById(R.id.list_of_guards);
return view;
}
private class MyAdminAdapter extends ArrayAdapter<Guards>{
private ArrayList<Guards> objectsList;
public MyAdminAdapter(Context context, int resource, ArrayList<Guards> objectsList) {
super(context, resource, objectsList);
this.objectsList = objectsList;
this.objectsList.addAll(objectsList);
}
private class ViewHolder{
CheckBox chk_name;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder = null;
if (convertView == null){
LayoutInflater vi = (LayoutInflater)getActivity().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = vi.inflate(R.layout.single_row_access, null);
holder = new ViewHolder();
holder.chk_name = (CheckBox) convertView.findViewById(R.id.chk_guard);
convertView.setTag(holder);
}
else {
holder = (ViewHolder) convertView.getTag();
}
final Guards guards = objectsList.get(position);
holder.chk_name.setText(guards.getName());
holder.chk_name.setChecked(guards.isChecked());
holder.chk_name.setTag(guards);
holder.chk_name.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
CheckBox cb = (CheckBox) v;
Guards guards = (Guards) cb.getTag();
guards.setChecked(cb.isChecked());
}
});
return convertView;
}
}
#Override
public void onDestroy() {
super.onDestroy();
}
#Override
public void onDetach() {
super.onDetach();
}
}
I get the data an store it like this.
private void DisplayAllNames() {
guardsName = new ArrayList<Guards>();
ParseQuery<ParseObject> guardsQuery = ParseQuery.getQuery("Guards");
guardsQuery.whereExists("Name");
guardsQuery.orderByAscending("Name");
guardsQuery.findInBackground(new FindCallback<ParseObject>() {
#Override
public void done(List<ParseObject> list, ParseException e) {
if (e == null) {
if (list.size() > 0) {
for (int i = 0; i < list.size(); i++) {
ParseObject data = list.get(i);
str_name = data.getString("Name");
isAdmin = data.getBoolean("admin");
guards = new Guards(str_name, isAdmin);
guardsName.add(guards);
}
adminAdapter = new MyAdminAdapter(getActivity(), R.layout.single_row_access, guardsName);
listView.setAdapter(adminAdapter);
} else {
}
} else {
}
}
});
}
Thanks in advance.
Remove this line from your MyAdminAdapter's constructor:
this.objectsList.addAll(objectsList);
You are already adding your items in the previous instruction:
this.objectsList = objectsList;
In your MyAdminAdapter you are adding the data twice:
this.objectsList = objectsList;
this.objectsList.addAll(objectsList);
You just have to remove the second line.
Related
I have RecycleView List with an ExpandableLinearLayout ( i use a third party library). In my ExpandableLinearLayout I have a ListView, with an custom ArrayAdapter.
I set my Adapter in the RecycleViewAdapter and submit one ArrayList that contains 4 ArrayLists and the position from the onBindViewHolder() method , too fill the different sections in the RecycleView.
I pass the data in the correct section but i get only the first element of each ArrayList. I Log some stuff and the problem is the position from the getView method in my ArrayAdapter is always 0..
I search and played around a bit but i didnt found a solution.. I hope somebody can help..
Sorry for my bad grammar
This is my RecycleView :
public class EmergencyPassAdapter extends RecyclerView.Adapter<EmergencyPassAdapter.EmergencyPassViewHolder> {
private static final String LOG_TAG = EmergencyPassAdapter.class.getName();
private Context context;
private ArrayList<CellInformation> cellInformations;
private SparseBooleanArray expandState = new SparseBooleanArray();
EmergencyPassExpandAdapter emergencyPassExpandAdapter;
public EmergencyPassAdapter(Context context, ArrayList<CellInformation> cellInformations) {
this.context = context;
this.cellInformations = cellInformations;
for (int i = 0; i < cellInformations.size(); i++) {
expandState.append(i, false);
}
}
#Override
public EmergencyPassViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.cell_emergency_pass, parent, false);
return new EmergencyPassViewHolder(view);
}
#Override
public void onBindViewHolder(final EmergencyPassViewHolder holder, final int position) {
CellInformation cellInformation = cellInformations.get(position);
holder.imageViewIcon.setImageDrawable(cellInformation.getIcon());
holder.textViewTitle.setText(cellInformation.getTitel());
emergencyPassExpandAdapter = new EmergencyPassExpandAdapter(context, EmergencyPassExpandDetailFactory.getExpandCellInformation(context), position);
holder.listView.setAdapter(emergencyPassExpandAdapter);
if (cellInformation.getTitel().equals(context.getResources().getString(R.string.emergency_informations_health_insurance_emergency_contacts))) {
holder.expandableLinearLayout.setExpanded(expandState.get(position));
holder.expandableLinearLayout.setListener(new ExpandableLayoutListenerAdapter() {
#Override
public void onPreOpen() {
expandState.put(position, true);
holder.imageViewArrow.setRotation(180);
}
#Override
public void onPreClose() {
expandState.put(position, false);
holder.imageViewArrow.setRotation(360);
}
});
} else if (cellInformation.getTitel().equals(context.getResources().getString(R.string.emergency_informations_health_insurance_legal_guardian))) {
holder.expandableLinearLayout.setExpanded(expandState.get(position));
holder.expandableLinearLayout.setListener(new ExpandableLayoutListenerAdapter() {
#Override
public void onPreOpen() {
expandState.put(position, true);
holder.imageViewArrow.setRotation(180);
}
#Override
public void onPreClose() {
expandState.put(position, false);
holder.imageViewArrow.setRotation(360);
}
});
} else {
holder.expandableLinearLayout.setExpanded(expandState.get(position));
holder.expandableLinearLayout.setListener(new ExpandableLayoutListenerAdapter() {
#Override
public void onPreOpen() {
expandState.put(position, true);
holder.imageViewArrow.setRotation(180);
}
#Override
public void onPreClose() {
expandState.put(position, false);
holder.imageViewArrow.setRotation(360);
}
});
}
holder.relativeLayout.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
if (!holder.expandableLinearLayout.isExpanded()) {
Log.i(LOG_TAG, "expand");
holder.expandableLinearLayout.expand();
} else {
Log.i(LOG_TAG, "collapse");
holder.expandableLinearLayout.collapse();
}
}
});
}
#Override
public int getItemCount() {
return cellInformations.size();
}
public static class EmergencyPassViewHolder extends RecyclerView.ViewHolder {
TextView textViewTitle, textViewExpandText;
ImageView imageViewIcon, imageViewArrow;
ExpandableLinearLayout expandableLinearLayout;
RelativeLayout relativeLayout;
ListView listView;
public EmergencyPassViewHolder(View itemView) {
super(itemView);
textViewTitle = (TextView) itemView.findViewById(R.id.cell_emergency_pass_title_tv);
textViewExpandText = (TextView) itemView.findViewById(R.id.cell_emergency_pass_expand_detail_tv);
imageViewIcon = (ImageView) itemView.findViewById(R.id.cell_emergency_pass_icon_iv);
imageViewArrow = (ImageView) itemView.findViewById(R.id.cell_emergency_pass_arrow_icon_iv);
expandableLinearLayout = (ExpandableLinearLayout) itemView.findViewById(R.id.cell_emergency_pass_arrow_expandable_list);
relativeLayout = (RelativeLayout) itemView.findViewById(R.id.cell_emergency_pass_root_rl);
listView = (ListView) itemView.findViewById(R.id.cell_emergency_pass_expand_lv);
}
}
}
My ArrayAdapter
public class EmergencyPassExpandAdapter extends ArrayAdapter<CellExpandInformation>{
private static final String LOG_TAG = EmergencyPassExpandAdapter.class.getName();
private ArrayList<CellExpandInformation> values;
private int checkPosition;
private Context context;
public EmergencyPassExpandAdapter(Context context, ArrayList<CellExpandInformation> values, int checkPosition) {
super(context, -1, values);
this.context = context;
this.values = values;
this.checkPosition = checkPosition;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
Log.i(LOG_TAG,"View");
Log.i(LOG_TAG,"Position: " + position);
EmergencyPassExpandViewHolder viewHolder;
CellExpandInformation cellExpandInformation = values.get(position);
if (convertView == null) {
LayoutInflater inflater = ((Activity) context).getLayoutInflater();
convertView = inflater.inflate(R.layout.cell_emergency_pass_expand, parent, false);
viewHolder = new EmergencyPassExpandViewHolder();
viewHolder.textViewExpandTitle = (TextView) convertView.findViewById(R.id.cell_emergency_pass_expand_detail_tv);
convertView.setTag(viewHolder);
} else {
viewHolder = (EmergencyPassExpandViewHolder) convertView.getTag();
}
Log.i(LOG_TAG,"CheckPosition: " + checkPosition);
if (values != null) {
if (checkPosition == 0) {
viewHolder.textViewExpandTitle.setText(cellExpandInformation.getMedications().get(position).getMedicationName());
Log.i(LOG_TAG, "Medications: " + cellExpandInformation.getMedications().get(position).getMedicationName());
} else if (checkPosition == 1) {
viewHolder.textViewExpandTitle.setText(cellExpandInformation.getAllergies().get(position).getAllgergiesName());
} else if (checkPosition == 2) {
viewHolder.textViewExpandTitle.setText(cellExpandInformation.getDiseases().get(position).getDiseasesName());
} else if (checkPosition == 3) {
viewHolder.textViewExpandTitle.setText(cellExpandInformation.getLegalGuradian().get(position).getGuradianName());
} else if (checkPosition == 4) {
viewHolder.textViewExpandTitle.setText(cellExpandInformation.getEmergencyContact().get(position).getEmergencyContactName());
}
}
for(int i = 0; i < cellExpandInformation.getMedications().size(); i++){
Log.i(LOG_TAG,"Medis: " + cellExpandInformation.getMedications().get(i).getMedicationName());
}
return convertView;
}
static class EmergencyPassExpandViewHolder {
TextView textViewExpandTitle;
ImageView imageViewPhone, imageViewEmail, imageViewAdd;
}
}
Can you help me out, I'm learning! ;-)
I have two buttons "+" and "-" and I want them to increase or decrease the amount by one up or one down. How do I make sure that it will only have effect on the right textview using an adapter.
Now all the buttons only effects the first one. I know I have to get the position/id of the array. But I don't know how.
btw
Merk = Brand
Aantal = Amount
public class ListViewDemo2 extends Activity {
private ArrayList<String> data = new ArrayList<String>();
int aantal = 0;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_list_view_demo2);
ListView lv = (ListView) findViewById(R.id.bestel_lijst);
lv.setAdapter(new MyListAdapter(this, R.layout.list_item, data));
generateListContent();
}
private void generateListContent(){
for (int i =0; i < 55; i++){
data.add("this is row number: " + i);
}
}
#Override
public boolean onCreateOptionsMenu (Menu menu){
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();
if (id == R.id.action_settings){
return true;
}
return super.onOptionsItemSelected(item);
}
private class MyListAdapter extends ArrayAdapter<String>{
private int layout;
public MyListAdapter(Context context, int resource, List<String> objects) {
super(context, resource, objects);
layout = resource;
}
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
ViewHolder mainViewholder = null;
if(convertView == null){
LayoutInflater inflater = LayoutInflater.from(getContext());
convertView = inflater.inflate(layout, parent, false);
ViewHolder viewHolder = new ViewHolder();
viewHolder.Merk = (TextView) convertView.findViewById(R.id.Merk);
viewHolder.Aantal = (TextView) convertView.findViewById(R.id.Aantal);
viewHolder.btnup = (Button) convertView.findViewById(R.id.Bup);
viewHolder.btndown = (Button) convertView.findViewById(R.id.Bdown);
viewHolder.btndown.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v){
aantal = aantal-1;
displayAantal(aantal);
}
});
viewHolder.btnup.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v){
aantal = aantal+1;
displayAantal(aantal);
}
});
convertView.setTag(viewHolder);
}
else {
mainViewholder = (ViewHolder)convertView.getTag();
mainViewholder.Merk.setText(getItem(position));
}
return convertView;
}
}
public class ViewHolder {
TextView Merk;
TextView Aantal;
Button btnup;
Button btndown;
}
public void displayAantal(int aantal) {
TextView aantalView = (TextView) findViewById(R.id.Aantal);
aantalView.setText(String.valueOf(aantal));
}
}
your problem seems to be in your displayAantal(int) method, in particular, in this line:
TextView aantalView = (TextView) findViewById(R.id.Aantal);
You do not need to re-initialize that field here, since it is already initialized inside getView():
viewHolder.Aantal = (TextView) convertView.findViewById(R.id.Aantal);
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
ViewHolder mainViewholder = null;
if(convertView == null){
LayoutInflater inflater = LayoutInflater.from(getContext());
convertView = inflater.inflate(layout, parent, false);
ViewHolder viewHolder = new ViewHolder();
viewHolder.Merk = (TextView) convertView.findViewById(R.id.Merk);
viewHolder.Aantal = (TextView) convertView.findViewById(R.id.Aantal);
viewHolder.btnup = (Button) convertView.findViewById(R.id.Bup);
viewHolder.btndown = (Button) convertView.findViewById(R.id.Bdown);
convertView.setTag(viewHolder);
}
else {
mainViewholder = (ViewHolder)convertView.getTag();
}
String str = getItem(position);
mainViewholder.Merk.setText(str);
viewHolder.btndown.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v){
//just handle the data ,then call adapter.notifyDataSetChanged();
}
});
viewHolder.btnup.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v){
//just handle the data ,then call adapter.notifyDataSetChanged();
}
});
return convertView;
}
I am trying to create an android application using a database from Parse.com. I am using a custom adapter to create a listview. I don't find any errors with the code and yet the listeview is not showing up. Nothing there in the logcat as well. Just the listview does not show up.
lv = (ListView)findViewById(R.id.listView);
mProgress = (ProgressBar)findViewById(R.id.check_progress);
mProgress.setVisibility(View.VISIBLE);
ParseQuery<ParseObject> query = new ParseQuery<ParseObject>("Sellers");
query.orderByAscending("Name");
query.findInBackground(new FindCallback<ParseObject>() {
#Override
public void done(List<ParseObject> parseObjects, ParseException e) {
if (e == null) {
studentsList = new ArrayList<Sellers>();
for (ParseObject ob : parseObjects) {
s = new Sellers();
s.setName(ob.getString("Name").toString());
s.setAddress1(ob.getString("Address1").toString());
s.setAddress2(ob.getString("Address2").toString());
s.setShopName(ob.getString("ShopName").toString());
s.setEmail(ob.getString("Email").toString());
s.setPhone(ob.getString("Phone").toString());
s.setZipcode(ob.getString("Zipcode").toString());
studentsList.add(s);
}
adapter = new ListviewAdapter(CheckStatus.this, studentsList);
lv.setAdapter(adapter);
mProgress.setVisibility(View.GONE);
} else {
mProgress.setVisibility(View.GONE);
Toast.makeText(getApplicationContext(), e.getMessage(), Toast.LENGTH_SHORT).show();
}
}
});
This is the activity where I am invoking the listview.
public class ListviewAdapter extends BaseAdapter{
private final static String TAG = ListviewAdapter.class.getSimpleName();
private Context activity;
private LayoutInflater inflater = null;
private List<Sellers> sellers;
int layout;
public ListviewAdapter(Context activity, List<Sellers> sellers) {
this.activity = activity;
this.sellers = sellers;
inflater = LayoutInflater.from(activity);
}
#Override
public int getCount() {
return 0;
}
#Override
public Object getItem(int position) {
return null;
}
#Override
public long getItemId(int position) {
return 0;
}
public class ViewHolder {
TextView name ;
TextView shop ;
TextView address1 ;
TextView address2;
TextView phone;
TextView email;
RelativeLayout rl;
}
#Override
public View getView(int position, View view, ViewGroup parent) {
View v =view;
ViewHolder holder = new ViewHolder();
if (view == null) {
LayoutInflater li = (LayoutInflater)activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = li.inflate(R.layout.list_item_layout,null);
holder.name = (TextView)v.findViewById(R.id.seller_name);
holder.shop = (TextView)v.findViewById(R.id.shop_name);
holder.address1 = (TextView)v.findViewById(R.id.address1);
holder.address2 = (TextView)v.findViewById(R.id.address2);
holder.phone = (TextView)v.findViewById(R.id.phone);
holder.email = (TextView)v.findViewById(R.id.emailID);
v.setTag(holder);
} else {
holder = (ViewHolder) v.getTag();
}
Sellers s = sellers.get(position);
// String a = s.Name;
// Log.d(TAG, a);
holder.name.setText(s.getName());
holder.shop.setText(s.getShopName());
holder.address1.setText(s.getAddress1());
holder.address2.setText(s.getAddress2());
holder.phone.setText(s.getPhone());
holder.email.setText(s.getEmail());
Log.d("CustomAdapter.class", "CustomAdapter");
// imageView.setImageDrawable(s.getPic());
return v;
}
}
And this is the custom adapter. There are no null pointer exceptions showing up in the logcat. I can't determine why the listview is not getting populated.
Try this;
#Override
public int getCount() {
return sellers.size();
}
#Override
public Object getItem(int position) {
return position;
}
#Override
public long getItemId(int position) {
return position:
}
You have to implement your code on getCount() by return number of item listview will be created.
I have a created a ListView with a custom layout showing the users saved on Parse.com
This is the code for the custom adapter I have created
public class StatusAdapter extends ArrayAdapter {
protected Context mContext;
protected List mStatus;
public StatusAdapter(Context context, List status) {
super(context, R.layout.usertem, status);
mContext = context;
mStatus = status;
}
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
convertView = LayoutInflater.from(mContext).inflate(
R.layout.usertem, null);
holder = new ViewHolder();
holder.usernameHomepage = (TextView) convertView
.findViewById(R.id.userName);
holder.statusHomepage = (TextView) convertView
.findViewById(R.id.userEmail);
holder.proPic = (ParseImageView) convertView
.findViewById(R.id.medopic);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
ParseUser statusObject = (ParseUser) mStatus.get(position);
// title
String username = statusObject.getString("name");
holder.usernameHomepage.setText(username);
// content
String status = statusObject.getEmail();
holder.statusHomepage.setText(status);
ParseFile picc = statusObject.getParseFile("profile_picture");
holder.proPic.setParseFile(picc);
holder.proPic.loadInBackground();
return convertView;
}
public static class ViewHolder {
TextView usernameHomepage;
TextView statusHomepage;
ParseImageView proPic;
}
}
But the problem I have is that I want to listen to list item clicks where my activity extends simple activity not List Activity this is my activity
public class UsersList extends Activity {
private ParseQueryAdapter<ParseObject> mainAdapter;
protected List<ParseUser> mUsers;
ListView listhope;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_users_list);
listhope = (ListView) findViewById(R.id.userlistlist);
ParseQuery<ParseUser> query = new ParseQuery<ParseUser>("_User");
query.findInBackground(new FindCallback<ParseUser>() {
#Override
public void done(List<ParseUser> list, ParseException e) {
if (e == null) {
mUsers = list;
StatusAdapter adapter = new StatusAdapter(listhope.getContext(), mUsers);
listhope.setAdapter(adapter);
} else {
}
}
});
}
[...]
Please help fast
In your onCreate write
listhope.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
//position is the row on which the user has clicked
ParseUser parseUser=mUsers.get(position);
//now you have the objext parseUser and this objects is what you needed.
}
});
Could anybody explain me, how to realize?
I have an activity with listview and footer with some elements(textview).
Listview built with custom adapter. Each listview item has few elements. And my question: how can i change textview in footer, from custom adapter, when i clicking on some listview's element?
Thx a lot!
/**** My adapter ****/
public class MyListAdapter extends ArrayAdapter<Product> implements UndoAdapter {
private final Context mContext;
private HashMap<Product, Integer> mIdMap = new HashMap<Product, Integer>();
ArrayList<Product> products = new ArrayList<Product>();
final int INVALID_ID = -1;
LayoutInflater lInflater;
String imagePath;
public MyListAdapter(Context context, int textViewResourceId, List<Product> prod) {
//super(context, textViewResourceId, prod);
super(prod);
lInflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
mContext = context;
for (int i = 0; i < prod.size(); i++) {
//add(prod.get(i));
mIdMap.put(prod.get(i),i);
}
}
#Override
public long getItemId(final int position) {
//return getItem(position).hashCode();
Product item = (Product) getItem(position);
return mIdMap.get(item);
}
#Override
public boolean hasStableIds() {
return true;
}
#Override
public View getView(final int position, View convertView, final ViewGroup parent) {
ViewHolder holder = null;;
Product p = getItem(position);
if (convertView == null) {
convertView = lInflater.inflate(R.layout.item, null);
//convertView.setBackgroundResource(R.drawable.rounded_corners);
int currentTheme = Utils.getCurrentTheme(convertView.getContext());
switch (currentTheme) {
case 0:
convertView.setBackgroundResource(R.drawable.rounded_corners);
break;
case 1:
convertView.setBackgroundResource(R.drawable.border);
break;
default:
convertView.setBackgroundResource(R.drawable.rounded_corners);
break;
}
holder = new ViewHolder();
holder.tvDescr = (TextView) convertView.findViewById(R.id.tvDescr);
holder.list_image = (ImageView) convertView.findViewById(R.id.list_image);
holder.products_amount = (TextView) convertView.findViewById(R.id.amountDigits);
holder.products_price = (TextView) convertView.findViewById(R.id.priceDigits);
holder.ivImage = (ImageView) convertView.findViewById(R.id.ivImage);
holder.unit = (TextView) convertView.findViewById(R.id.unit);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
if(p.getProductImageBitmap() != null && p.getProductImageBitmap() != "") {
Log.d("PATH -- ", p.getProductImageBitmap());
ImageLoader imageLoader = ImageLoader.getInstance();
DisplayImageOptions options = new DisplayImageOptions.Builder().cacheInMemory(true)
.resetViewBeforeLoading(true)
.showImageForEmptyUri(R.drawable.ic_launcher)
.showImageOnFail(R.drawable.ic_launcher)
/*.showImageOnLoading(R.id.progress_circular)*/
.build();
imageLoader.displayImage(p.getProductImageBitmap(), holder.list_image, options);
} else {
holder.list_image.setImageResource(R.drawable.ic_launcher);
}
holder.tvDescr.setText(p.getProductName());
holder.ivImage.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
String deletedItem = getItem(position).getProductName();
MyListAdapter.this.remove(getItem(position));
if (MyListAdapter.this.getCount() > 0) {
Toast.makeText(mContext, deletedItem + " " + mContext.getString(R.string.deleted_item), Toast.LENGTH_SHORT).show();
MyListAdapter.this.notifyDataSetChanged();
} else {
Toast.makeText(mContext,mContext.getString(R.string.sklerolist_empty), Toast.LENGTH_SHORT).show();
}
}
});
//Функционал для большой картинки продукта
//открывается новое активити с большой картинкой
holder.list_image.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
imagePath = getItem(position).getProductImageBitmap();
if(imagePath != null && imagePath != "") {
Pattern normalPrice = Pattern.compile("^file");
Matcher m2 = normalPrice.matcher(imagePath);
if (m2.find()) {
Intent myIntent = new Intent(view.getContext(), ViewImage.class).putExtra("imagePath", imagePath);
view.getContext().startActivity(myIntent);
}
}
}
});
holder.products_price.setText(fmt(p.getProductPrice()));
holder.products_amount.setText(fmt(p.getProductAmount()));
holder.unit.setText(p.getProductUnit());
return convertView;
}
public static String fmt(double d){
if(d == (long) d)
return String.format("%d",(long)d);
else
return String.format("%s",d);
}
static class ViewHolder {
ImageView list_image;
TextView tvDescr;
TextView products_amount;
TextView products_price;
TextView unit;
ImageView ivImage;
ProgressBar circleProgress;
}
#NonNull
#Override
public View getUndoView(final int position, final View convertView, #NonNull final ViewGroup parent) {
View view = convertView;
if (view == null) {
//view = LayoutInflater.from(mContext).inflate(R.layout.undo_row, parent, false);
view = lInflater.inflate(R.layout.undo_row, parent, false);
}
return view;
}
#NonNull
#Override
public View getUndoClickView(#NonNull final View view) {
return view.findViewById(R.id.undo_row_undobutton);
}
public View getHeaderView(final int position, final View convertView, final ViewGroup parent) {
TextView view = (TextView) convertView;
//View view = convertView;
if (view == null) {
//view = (TextView) LayoutInflater.from(mContext).inflate(R.layout.list_header, parent, false);
//view = lInflater.inflate(R.layout.list_header, parent, false);
}
//view.setText(mContext.getString(R.string.header, getHeaderId(position)));
return view;
}
public long getHeaderId(final int position) {
return position / 10;
}
}
Your ListView has a listener for the click events on list elements.
#Override
public void onListItemClick(ListView l, View v, int position, long id) {
// Do something when a list item is clicked
}
But if you want to pas something else back from the adapter to the Activity or the Fragment that contains that ListView and Adapter, you should create a simple interface and set it as listener to your adapter. After that, set click events on your rows from within the adapter, and notify the Activity or Fragment using your own interface.
For example you have the interface defined like this
public interface OnItemClickedCustomAdapter {
public void onClick(ItemPosition position);
}
and in your Adapter class you will have a private member
private OnItemClickedCustomAdapter mListener;
and a method used to set the listener
public void setOnItemClickedCustomAdapter(OnItemClickedCustomAdapter listener){
this.mListener = listener;
}
From your Activity or Fragment where your ListView is defined, and your adapter is set, you will be able to call setOnItemClickedCustomAdapter with this as parameter, and there you go. Your activity will now listen for your events. To trigger an event, just call mListener.onClick() from your custom adapter. You can pass back data you need back to the Activity or Fragment, and from there you have access to your Header or Footer directly, and you can change the text on them.