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Click listener for a button in a customised cell in a list view

I've created a customised list view for my Android app in order to add a Delete button for every cell to make the user able to delete rows from the list. The customised list view is working well but when I added a click listener for the button, the list view show empty cells instead of populating the data coming from the array.
Here is the getView code:
public View getView(final int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = getLayoutInflater();
View row = inflater.inflate(R.layout.row, parent, false);
Button deleteButt = (Button) row.findViewById(R.id.deleteButton);
deleteButt.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(getActivity(), "delete me", Toast.LENGTH_SHORT).show();
}
});
return row;
}
I think the I should return something else not the row, but I have no idea what to return. When I think about it when I return the row it should show the rows filled with data. Note when I delete this piece of code, the list view is working well with showing the data.
This is the whole code of the adapter class
// Our adapter class
class MyAdapter extends ArrayAdapter<String> {
Context context;
String rNames[];
MyAdapter(Context c, String name[]) {
super(c, R.layout.row, R.id.customerName, name);
this.context = c;
this.rNames = name;
}
public View getView(final int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = getLayoutInflater();
View row = inflater.inflate(R.layout.row, parent, false);
Button deleteButt = (Button) row.findViewById(R.id.deleteButton);
deleteButt.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(getActivity(), "delete me", Toast.LENGTH_SHORT).show();
}
});
return row;
}
}
And this is the whole code of the home fragment page
public class HomeFragment extends Fragment {
// creating an empty array. This is an array of objects (array of arrays).
final ArrayList<String[]> mainObjectsArray = new ArrayList<String[]>();
//final String[][] myFamily = new String[][];
// creating another array of the titles. If our main array is an array of strings we will not need this.
// Why?. ArrayAdapter doesn't accept an array of arrays it only accepts an array of Stings, so we had to create a special array for the titles and bring them from our main array.
final ArrayList<String> theNames = new ArrayList<String>();
#Nullable
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
final View rootView = inflater.inflate(R.layout.fragment_home, null);
// creaing a list view and connect it to the list view we created in the XML file
// Note: we need to add (final) to be able to access them from inside the loop
final ListView myListView = (ListView) rootView.findViewById(R.id.myListView);
// Retrieving the data and filling the array with it
ParseQuery<ParseObject> query = ParseQuery.getQuery("Orders");
query.orderByDescending("updatedAt");
query.findInBackground(new FindCallback<ParseObject>() {
#Override
public void done(List<ParseObject> objects, ParseException e) {
if (e == null) {
//Log.i("findInBackground", "Retrieved: " + objects.size() + "objects");
if (objects.size() > 0) {
for (ParseObject object: objects) {
// Converting every object to an array of two itmes, title and body.
String[] artical = {object.getString("TheSavedOrder"), object.getString("mobileNumber"), object.getString("Name")};
// Adding the array to our main array so we will have an array of arrays
mainObjectsArray.add(artical);
//Log.i("This my family array: ", myFamily.toString());
}
// We will add only the names to the array (theNames). theTitles will be an array of strings so we can populate it in the list view.
for (int i = 0; i < mainObjectsArray.size(); i++){
theNames.add(mainObjectsArray.get(i)[2]);
//Log.i("Here are teh title: ", myFamily.get(i)[0]);
Log.i("Here is thti: ", theNames.get(i));
}
// Converting theNames from ArrayList to an array
String[] namesArray = new String[theNames.size()];
namesArray = theNames.toArray(namesArray);
// Applaying our adapter
MyAdapter adapter = new MyAdapter(getActivity(), namesArray);
myListView.setAdapter(adapter);
}
}
}
});
// When clicking on an item in the list view
myListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
//Log.i("The body is: ", mainObjectsArray.get(position));
Intent intent = new Intent(getContext(), TheBody.class);
intent.putExtra("mobile", mainObjectsArray.get(position)[1]); // mainObjectsArray.get(position)[1] means we will pass the second item in every array which is the (mobileNumber).
intent.putExtra("order", mainObjectsArray.get(position)[0]);
startActivity(intent);
}
});
return rootView;
}
// Our adapter class
class MyAdapter extends ArrayAdapter<String> {
Context context;
String rNames[];
MyAdapter(Context c, String name[]) {
super(c, R.layout.row, R.id.customerName, name);
this.context = c;
this.rNames = name;
}
public View getView(final int position, View convertView, ViewGroup parent) {
LayoutInflater inflater = getLayoutInflater();
View row = inflater.inflate(R.layout.row, parent, false);
Button deleteButt = (Button) row.findViewById(R.id.deleteButton);
deleteButt.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(getActivity(), "delete me", Toast.LENGTH_SHORT).show();
}
});
return row;
}
}
}
This is the XML code of the fragment
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ListView
android:id="#+id/myListView"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
And finally this is the XML code of the customised cell
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:padding="16dp"
android:descendantFocusability="blocksDescendants">
<TextView
android:id="#+id/customerName"
android:layout_width="200dp"
android:layout_height="wrap_content"
android:text="custoemr name"
android:textColor="#000"
android:layout_margin="5dp"
android:textSize="20sp"/>
<Button
android:id="#+id/deleteButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Delete"
/>
</LinearLayout>
Please help I've been struggling with this for some days!
Many thanks.

public View getView(final int position, View convertView, ViewGroup parent) ｛
View row = super.getView(position, convertView, parent);
Button deleteButt = (Button) row.findViewById(R.id.deleteButton);
deleteButt.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(getActivity(), "delete me", Toast.LENGTH_SHORT).show();
} });
return row;
}
Pls also note that your list, rNames, is an array[] that is fixed size and cannot remove an individual item. You should use ArrayList if you want to implement the delete function.
Updated:
public class HomeFragment extends Fragment {
// creating an empty array. This is an array of objects (array of arrays).
ArrayList<MainObjects> mainObjectsList = new ArrayList<>();
ListView myListView;
#Nullable
#Override
public View onCreateView(#NonNull LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_home, null);
// creaing a list view and connect it to the list view we created in the XML file
// Note: we need to add (final) to be able to access them from inside the loop
myListView = (ListView) rootView.findViewById(R.id.myListView);
// Retrieving the data and filling the array with it
ParseQuery<ParseObject> query = ParseQuery.getQuery("Orders");
query.orderByDescending("updatedAt");
query.findInBackground(new FindCallback<ParseObject>() {
#Override
public void done(List<ParseObject> objects, ParseException e) {
if (e == null) {
//Log.i("findInBackground", "Retrieved: " + objects.size() + "objects");
if (objects.size() > 0) {
for (ParseObject object : objects) {
// Converting every object to an array of two items, title and body.
//String[] artical = {object.getString("TheSavedOrder"), object.getString("mobileNumber"), object.getString("Name")};
MainObjects article = new MainObjects(object.getString("TheSavedOrder"), object.getString("mobileNumber"), object.getString("Name");
// Adding the array to our main array so we will have an array of arrays
mainObjectsList.add(article);
//Log.i("This my family array: ", myFamily.toString());
}
// Applying our adapter
MyAdapter adapter = new MyAdapter(getActivity(), mainObjectsList);
myListView.setAdapter(adapter);
}
}
}
});
// When clicking on an item in the list view
myListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
#Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
//Log.i("The body is: ", mainObjectsList.get(position));
Intent intent = new Intent(getContext(), TheBody.class);
intent.putExtra("mobile", mainObjectsList.get(position).getMobileNumber());
intent.putExtra("order", mainObjectsList.get(position).getSavedOrder());
startActivity(intent);
}
});
return rootView;
}
class MainObjects {
String savedOrder = "", mobileNumber = "", name = "";
public MainObjects(String savedOrder, String mobileNumber, String name) {
this.savedOrder = savedOrder;
this.mobileNumber = mobileNumber;
this.name = name;
}
public String getSavedOrder() {
return savedOrder;
}
public String getMobileNumber() {
return mobileNumber;
}
public String getName() {
return name;
}
}
class MyAdapter extends ArrayAdapter<MainObjects> {
Context context;
LayoutInflater inflater;
ArrayList<MainObjects> rNames;
MyAdapter(Context c, ArrayList<MainObjects> name) {
super(c, R.layout.row, R.id.customerName, name);
this.context = c;
this.rNames = name;
inflater = getLayoutInflater();
}
public View getView(int position, View convertView, ViewGroup parent) {
View row = inflater.inflate(R.layout.row, parent, false);
TextView nameTv = (TextView) row.findViewById(R.id.customerName);
nameTv.setText(getItem(position).getName());
Button deleteButt = (Button) row.findViewById(R.id.deleteButton);
deleteButt.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View view) {
int pos = (int)view.getTag();
String msg = "Delete: " + pos + ". " + getItem(pos).getName() + " !!";
Toast.makeText(context, msg, Toast.LENGTH_SHORT).show();
rNames.remove(pos);
notifyDataSetChanged();
//
// Codes to update permanent storage, e.g. files/server/db.
//
} });
deleteButt.setTag(position);
return row;
}
}
}

Write on Firebase Database that user clicked button on listView item

I have a listView with a custom adapter that includes text + button on each item of my list view. I'am retrieving the text from firebase without problem, but i want that if the user clicks on the button of a item, it will write on the database that that user clicked on that item.
Thank you if someone can help me, give me an idea or send a link.
I had an idea of retrieving the index(rec_1, rec_2, rec_3, etc) of the messages i'm putting on the listView and if the user clicks on the button, i write on the database index - userId : 1 or something like that, but how would i put the index value hidden on each item of the listview so i can retrieve when the button is clicked? Is just an ideia, if there is a better alternative, please tell me!
My code:
activity_recados_item.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<TextView
android:id="#+id/textRecados"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true" />
<Button
android:id="#+id/buttonRecadoVisto"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="#id/textRecados"
android:layout_centerHorizontal="true"
android:layout_marginTop="50dp"
android:text="Visto" />
</RelativeLayout>
RecadosCustomAdapter.java
public class RecadosCustomAdapter extends BaseAdapter implements ListAdapter {
private ArrayList<String> recadosList = new ArrayList<String>();
private Context context;
public RecadosCustomAdapter(ArrayList<String> recadosList, Context context) {
this.recadosList = recadosList;
this.context = context;
}
#Override
public int getCount() {
return recadosList.size();
}
#Override
public Object getItem(int pos) {
return recadosList.get(pos);
}
#Override
public long getItemId(int position) {
//return recadosList.get(pos).getId();
return 0;
}
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
View view = convertView;
if (view == null) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = inflater.inflate(R.layout.activity_recados_item, null);
}
//Handle TextView and display string from your list
TextView listItemText = (TextView)view.findViewById(R.id.textRecados);
listItemText.setText(recadosList.get(position));
//Handle buttons and add onClickListeners
Button buttonVisto = (Button)view.findViewById(R.id.buttonRecadoVisto);
buttonVisto.setOnClickListener(new View.OnClickListener(){
#Override
public void onClick(View v) {
//do something
}
});
return view;
}
}
RecadosActivity.java
ValueEventListener valueEventListener = myRef.limitToLast(15).addValueEventListener(new ValueEventListener() {
ArrayList<String> recadosList = new ArrayList<String>();
RecadosCustomAdapter adapter = new RecadosCustomAdapter(recadosList, RecadosActivity.this);
#Override
public void onDataChange(DataSnapshot dataSnapshot) {
recadosList.clear();
adapter.notifyDataSetChanged();
for (DataSnapshot ds : dataSnapshot.getChildren()) {
RecadosInformation rInfo = new RecadosInformation();
rInfo.setData(ds.getValue(RecadosInformation.class).getData());
rInfo.setMensagem(ds.getValue(RecadosInformation.class).getMensagem());
Log.d(TAG, "showData: Data: " + rInfo.getData());
Log.d(TAG, "showData: Mensagem: " + rInfo.getMensagem());
recadosList.add(rInfo.getData() + "\n" + rInfo.getMensagem() + "\n");
}
Collections.reverse(recadosList);
recados.setAdapter(adapter);
}
#Override
public void onCancelled(DatabaseError databaseError) {
}
});
Thank you if someone can help me!

I think you should do:
FirebaseDatabase.getInstance().getReference("YOUR_NODE").child("child").setValue(yourvalue);
I think you get the idea?
Read here for more: https://firebase.google.com/docs/database/android/read-and-write
Edit you'll know inside the getView method, that method is called for each item in the list so when u click a button, use the int position to get the particular position of the item
Do:
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
View view = convertView;
if (view == null) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = inflater.inflate(R.layout.activity_recados_item, null);
}
//Handle TextView and display string from your list
TextView listItemText = (TextView)view.findViewById(R.id.textRecados);
listItemText.setText(recadosList.get(position));
//Handle buttons and add onClickListeners
Button buttonVisto = (Button)view.findViewById(R.id.buttonRecadoVisto);
buttonVisto.setOnClickListener(new View.OnClickListener(){
#Override
public void onClick(View v) {
//upload the index which is position
}
});
return view;
}
Edit 2 give each message an id on firebase database using the push().getKey() method. So in ur getView() do:
String id = yourlist.get(position).getId();
Then do what u want with it.

Spinner not showing list of items

I have a Spinner that is being populated by a custom adapter.
I can log out all the TextView's in the custom adapter and see what the text is at the position.
TEXT VIEW AT POSITION 0 TEXT: ABC Company
TEXT VIEW AT POSITION 1 TEXT: DEF Company
TEXT VIEW AT POSITION 2 TEXT: GHI Company
TEXT VIEW AT POSITION 3 TEXT: JKL Company
TEXT VIEW AT POSITION 4 TEXT: MNO Company
TEXT VIEW AT POSITION 5 TEXT: PQR Company
So I know passing the data in isn't the problem.
When the Spinner is selected, in the app it just shows up blank.
Anyone see what I am doing wrong?
public class MyActivity extends AppCompatActivity {
private Spinner spinnerCompanies;
private ArrayList<HashMap> arrayOfCompanies;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_new_call);
spinnerCompanies = (Spinner) findViewById(R.id.spCompany);
//do background task and pass JSONArray to processCompanies
processCompanies(jsonArray);
}
public void processCompanies(JSONArray jsonArray){
arrayOfCompanies = new ArrayList<HashMap>();
HashMap company;
JSONObject record;
for (int i = 0; i < jsonArray.length(); i++) {
record = jsonArray.getJSONObject(i);
company = new HashMap<String, String>();
company.put("NAME", record.getString("CompanyName"));
arrayOfCompanies.add(company);
}
CompanyAdapter companyAdapter = new CompanyAdapter(arrayOfCompanies);
spinnerCompanies.setAdapter(companyAdapter);
spinnerCompanies.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
#Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
didSelectCompany(position);
}
#Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
}
private void didSelectCompany(int position){
Log.i(TAG, "didSelectCompany: " + position);
}
public class CompanyAdapter extends BaseAdapter {
private final ArrayList<HashMap> mArrayList;
public CompanyAdapter(ArrayList<HashMap> map) {
mArrayList = map;
}
#Override
public int getCount() {
return mArrayList.size();
}
#Override
public HashMap<String, String> getItem(int position) {
return mArrayList.get(position);
}
#Override
public long getItemId(int position) {
return 0;
}
#Override
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null) {
convertView = LayoutInflater.from(getApplicationContext()).inflate(R.layout.item_company, parent, false);
}
HashMap<String, String> item = getItem(position);
TextView textView = (TextView) convertView.findViewById(R.id.tvSubTermainalName);
textView.setText(item.get("NAME"));
Log.d(TAG, "TEXT VIEW AT POSITION " + position + " TEXT: " + textView.getText());
return convertView;
}
}
}
R.layout.item_company XML used by the custom adapter
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:text="TextView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/tvSubTermainalName"/>
</LinearLayout>

Did you try removing the part
if(convertView==null)
and try inflating the view always?

Button setOnClickListener in a ListView

I'm trying to get the onclick event of a button inside a listview, but it's not working
fragment_contact.xml
<LinearLayout
android:layout_width="match_parent"
android:layout_height="404dp"
android:layout_weight="0.64"
android:orientation="horizontal"
android:paddingBottom="40dip" >
<ListView
android:id="#+id/contactlistview"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_gravity="fill"
android:layout_weight="10"
android:textSize="5pt"
android:visibility="visible" />
</LinearLayout>
fragment_contact_content.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:weightSum="1">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="New Button"
android:id="#+id/btn_edit_contact"
android:layout_gravity="right" />
</LinearLayout>
FragmentContact.java
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
view = inflater.inflate(R.layout.fragment_contact, container, false);
ListAdapter adapter_contact = new SimpleAdapter(
getActivity(), allcontact,
R.layout.fragment_contact_content, new String[]{"name", "level", "function", "phone", "email"},
new int[]{R.id.contact, R.id.level, R.id.function, R.id.phone, R.id.email});
listview_contact = (ListView) view.findViewById(R.id.contactlistview);
listview_contact.setItemsCanFocus(true);
listview_contact.setAdapter(adapter_contact);
Button btn_edit_contact = (Button) view.findViewById(R.id.btn_edit_contact);
btn_edit_contact.setOnClickListener( new View.OnClickListener() {
#Override
public void onClick(View v) {
System.out.println("Do something");
}
});
return view;
}
I also tried inflating fragment_contact_content.xml but the button still does nothing.

Use custom Adapter and in getView Write your code
public class MealAdapter extends BaseAdapter{
private int mHour, mMinute;
int minutes,hour;
String strtime;
customButtonListener customListner;
private Context context;
private List<Meal> rowItems;
public MealAdapter(Context context, List<Meal> rowItems) {
this.context = context;
this.rowItems = rowItems;
}
#Override
public int getCount() {
return rowItems.size();
}
#Override
public Object getItem(int position) {
return rowItems.get(position);
}
#Override
public long getItemId(int position) {
return rowItems.indexOf(getItem(position));
}
private class OptionHolder
{
ImageButton btn_time;
ImageButton btn_delete;
}
#Override
public View getView(final int position, View convertView, final ViewGroup parent) {
// TODO Auto-generated method stub
final OptionHolder holder;
if (convertView == null)
{
LayoutInflater mInflater = (LayoutInflater) context.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
convertView = mInflater.inflate(R.layout.meal_list_item, null);
holder = new OptionHolder();
holder.btn_time= (ImageButton) convertView.findViewById(R.id.btn_time);
holder.btn_delete =(ImageButton) convertView.findViewById(R.id.btn_delete_meal);
convertView.setTag(holder);
}
else
{
holder = (OptionHolder) convertView.getTag();
}
final Meal row_pos=rowItems.get(position);
row_pos.setMeal("");
row_pos.setDetail("");
holder.ed_meal.setText(row_pos.getMeal());
holder.ed_detail.setText(row_pos.getDetail());
holder.ed_time.setText(row_pos.getTime());
holder.btn_time.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
final Calendar c = Calendar.getInstance();
mHour = c.get(Calendar.HOUR_OF_DAY);
mMinute = c.get(Calendar.MINUTE);
// Launch Time Picker Dialog
TimePickerDialog tpd = new TimePickerDialog(MealPlannerFragment.con,
new TimePickerDialog.OnTimeSetListener() {
#Override
public void onTimeSet(TimePicker view, int hourOfDay,
int minute) {
// Display Selected time in textbox
strtime=(hourOfDay + ":" + minute);
row_pos.setTime(strtime);
row_pos.setMunite(minute);
row_pos.setHour(hourOfDay);
holder.ed_time.setText(row_pos.getTime());
}
}, mHour, mMinute, false);
tpd.show();
}
});
holder.btn_delete.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View arg0) {
if (customListner != null) {
customListner.onButtonClickListner(position,row_pos);
}
}
});
return convertView;
}
public interface customButtonListener {
public void onButtonClickListner(int position,Meal row_pos);
}
public void setCustomButtonListner(customButtonListener listener) {
this.customListner = listener;
}
}
`

you can not get Listview cell's Button event directly in onCreateView. you have to make CustomAdapter class for that.
you will need to create a Custom ArrayAdapter Class which you will use to inflate your xml layout, as well as handle your buttons and on click events.
public class MyCustomAdapter extends BaseAdapter implements ListAdapter {
private ArrayList<String> list = new ArrayList<String>();
private Context context;
public MyCustomAdapter(ArrayList<String> list, Context context) {
this.list = list;
this.context = context;
}
#Override
public int getCount() {
return list.size();
}
#Override
public Object getItem(int pos) {
return list.get(pos);
}
#Override
public long getItemId(int pos) {
return list.get(pos).getId();
//just return 0 if your list items do not have an Id variable.
}
#Override
public View getView(final int position, View convertView, ViewGroup parent) {
View view = convertView;
if (view == null) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = inflater.inflate(R.layout.fragment_contact_content, null);
}
//Handle button and add onClickListener
Button editBtn = (Button)view.findViewById(R.id.btn_edit_contact);
editBtn.setOnClickListener(new View.OnClickListener(){
#Override
public void onClick(View v) {
//do something
//some other task
notifyDataSetChanged();
}
});
return view;
}
}
Finally, in your activity you can instantiate your custom ArrayAdapter class and set it to your listview
public class MyActivity extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_my_activity);
//generate list
ArrayList<String> list = new ArrayList<String>();
list.add("item1");
list.add("item2");
//instantiate custom adapter
MyCustomAdapter adapter = new MyCustomAdapter(list, this);
//handle listview and assign adapter
ListView lView = (ListView)findViewById(R.id.my_listview);
lView.setAdapter(adapter);
}
You can refer this link: http://www.c-sharpcorner.com/UploadFile/9e8439/create-custom-listener-on-button-in-listitem-listview-in-a/
just handle on click listener inside getview where you find the button using findviewbyid
I hope it helps!

Empty Toast message

I have a 'row' view, which has two text views and one check-box. I am trying to implement it so that when the checkbox is clicked on, it displays the strings of the two text views in the same row.
I have implemented a for loop to get the parent of the checkbox view, then iterate all the parent views children and get the strings from inside them. But instead of the text I am getting an empty Toast message.
My first class code:
public class InteractiveArrayAdapter extends ArrayAdapter<model> implements
OnClickListener {
private final List<model> list;
private final Activity context;
public InteractiveArrayAdapter(Activity context, List<model> list) {
super(context, R.layout.rep, list);
this.context = context;
this.list = list;
}
static class ViewHolder {
protected TextView text;
protected CheckBox checkbox;
}
public View getView(int position, View convertView, ViewGroup parent) {
View view = null;
if (convertView == null) {
LayoutInflater inflator = context.getLayoutInflater();
view = inflator.inflate(R.layout.rep, null);
final ViewHolder viewHolder = new ViewHolder();
viewHolder.text = (TextView) view.findViewById(R.id.TextView07);
viewHolder.checkbox = (CheckBox) view.findViewById(R.id.CheckBox05);
view.getParent();
viewHolder.checkbox
.setOnClickListener(new CompoundButton.OnClickListener() {
#Override
public void onClick(View v) {
boolean h = ((CompoundButton) v).isChecked();
model element = (model) viewHolder.checkbox
.getTag();
element.setSelected(h);
ViewGroup row = (ViewGroup) viewHolder.checkbox
.getParent();
for (int itemPos = 0; itemPos < ((ViewGroup) row)
.getChildCount(); itemPos++) {
View view = ((ViewGroup) row)
.getChildAt(itemPos);
if (view instanceof TextView) {
viewHolder.text = (TextView) view; //Found it!
Toast.makeText(context,
viewHolder.text.getText(), 10000)
.show();
break;
}
}
}
});
view.setTag(viewHolder);
viewHolder.checkbox.setTag(list.get(position));
} else {
view = convertView;
((ViewHolder) view.getTag()).checkbox.setTag(list.get(position));
}
ViewHolder holder = (ViewHolder) view.getTag();
holder.text.setText(list.get(position).getName());
holder.checkbox.setChecked(list.get(position).isSelected());
return view;
}
}
My second class model :
public class ListActivity1 extends ListActivity {
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
setContentView(R.layout.activity_list);
// Create an array of Strings, that will be put to our ListActivity
InteractiveArrayAdapter adapter = new InteractiveArrayAdapter(this,
getModel());
setListAdapter(adapter);
}
private List<model> getModel() {
List<model> list = new ArrayList<model>();
list.add(get("Linux"));
list.add(get("Windows7"));
list.add(get("Suse"));
list.add(get("Eclipse"));
list.add(get("Ubuntu"));
list.add(get("Solaris"));
list.add(get("Android"));
list.add(get("iPhone"));
list.add(get("iPhone"));
list.add(get("iPhone"));
list.add(get("iPhone"));
list.add(get("iPhone"));
list.add(get("iPhone"));
list.add(get("iPhone"));
list.add(get("iPhone"));
list.add(get("iPhone"));
list.add(get("iPhone"));
list.add(get("iPhone"));
list.add(get("iPhone"));
// Initially select one of the items
list.get(1).setSelected(true);
return list;
}
private model get(String s) {
return new model(s);
}
}
Can any one help?

pls try this adapter instead of your custom adapter.
public class ListAdapter<T extends BaseEntity> extends ArrayAdapter {
#SuppressWarnings("unused")
private final List<T> objects;
private Activity activity;
private final List<T> checkboxStatusListOfObject;
private OnClickListener listener;
#SuppressWarnings("unchecked")
public ListAdapter(Activity activity, List<T> objects,
OnClickListener listener, List<T> checkboxStatusListOfObject) {
super( R.layout.simple_row_checkbox_1_item_listview , objects);
this.objects = objects;
this.activity = activity;
this.listener = listener;
this.checkboxStatusListOfObject = checkboxStatusListOfObject;
getFilter();
}
#SuppressWarnings("unchecked")
#Override
public View getView(int position, View convertView, ViewGroup parent) {
View rowView = convertView;
ObjectViews sqView = null;
if(rowView == null)
{
// Get a new instance of the row layout view
LayoutInflater inflater = this.activity.getLayoutInflater();
rowView = inflater.inflate(R.layout.YourCustomLAyout, null);
// Hold the view objects in an object,
// so they don't need to be re-fetched
sqView = new ObjectViews();
sqView.checbox = (CheckBox) rowView.findViewById(R.id.checkbox);
if(this.listener !=null){
sqView.checbox.setOnClickListener( this.listener);
}
sqView.text1 = (TextView) rowView.findViewById(R.id.text);
sqView.dataObject = new Object();
// Cache the view objects in the tag,
// so they can be re-accessed later
rowView.setTag(sqView);
} else {
sqView = (ObjectViews) rowView.getTag();
}
// Transfer the stock data from the data object
// to the view objects
T object = (T) objects.get(position);
sqView.text1.setText(object.toString());
sqView.checbox.setText("");
sqView.checbox.setTag(sqView);
sqView.dataObject = object;
if(sqView.getChecbox().isChecked()){
if(this.checkboxStatusListOfObject.indexOf( sqView.dataObject) != -1 ){
sqView.getChecbox().setChecked(true);
}
else{
sqView.getChecbox().setChecked(false);
}
}
return rowView;
}
public class ObjectViews {
Object dataObject;
CheckBox checbox;
TextView text1;
public Object getDataObject() {
return dataObject;
}
public void setDataObject(Object dataObject) {
this.dataObject = dataObject;
}
public CheckBox getChecbox() {
return checbox;
}
public void setChecbox(CheckBox checbox) {
this.checbox = checbox;
}
public TextView getText1() {
return text1;
}
public void setText1(TextView text1) {
this.text1 = text1;
}
}
Define your listener in activity and send to adapter.
OnClickListener listener = new OnClickListener() {
#Override
public void onClick(View v) {
CheckBox cb = (CheckBox) v ;
// here your code
if(cb.isChecked()){
ObjectViews object = (ObjectViews) cb.getTag();
String text = object.getText1().getText();
Toast.makeText(context,text, Toast.LENGTH_LONG).show();
}
}
};
//you can configure this adapter constructor. this is only example
yourListView.setAdapter(
new ListAdapter(getApplicationContext(), yourObjectList
listener, YourSelectedObjectList));
and layout
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:paddingBottom="6dip"
android:paddingTop="4dip" >
<CheckBox
android:id="#+id/checkbox"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:textSize="20dp" />
<TextView
android:id="#+id/text"
android:layout_width="0dp"
android:layout_marginLeft="10dp"
android:layout_height="wrap_content"
android:layout_weight="4"
android:textSize="20dp" />
</LinearLayout>