Get Selected Item Using Checkbox in Listview

Question

I am creating an Android application where I have a ListView that displays all of the applications that were installed in my mobile phone.

My ListView is customized,

Answer 1

"The use of the checkbox is to determine what Item in the Listview that I selected"

1. Just add the tag to checkbox using setTag() method in the Adapter class. and other side using getTag() method.

         @Override
      public void onBindViewHolder(MyViewHolder holder, int position) {
   
   ServiceHelper helper=userServices.get(position);
   holder.tvServiceName.setText(helper.getServiceName());
   
   if(!helper.isServiceStatus()){
   
       holder.btnAdd.setVisibility(View.VISIBLE);
       holder.btnAdd.setTag(helper.getServiceName());
       holder.checkBoxServiceStatus.setVisibility(View.INVISIBLE);
   
   }else{
   
       holder.checkBoxServiceStatus.setVisibility(View.VISIBLE);
          //This Line
       holder.checkBoxServiceStatus.setTag(helper.getServiceName());
       holder.btnAdd.setVisibility(View.INVISIBLE);
   
      }
   
   }
   

2. In xml code of the checkbox just put the "android:onClick="your method""attribute.

        <CheckBox
               android:layout_width="wrap_content"
               android:layout_height="wrap_content"
               android:onClick="checkboxClicked"  
               android:id="@+id/checkBox_Service_row"
               android:layout_marginRight="5dp"
               android:layout_alignParentTop="true"
               android:layout_alignParentRight="true"
               android:layout_alignParentEnd="true" />
   

3. In your class Implement that method "your method".

        protected void checkboxClicked(View view)
         {
   
           CheckBox checkBox=(CheckBox) view;
             String tagName="";
            if(checkBox.isChecked()){
              tagName=checkBox.getTag().toString();
              deleteServices.add(tagName);
              checkboxArrayList.add(checkBox);
           }else {
                  checkboxArrayList.remove(checkBox);
                  tagName=checkBox.getTag().toString();
                       if(deleteServices.size()>0&&deleteServices.contains(tagName)){
    deleteServices.remove(tagName);
       }
     }
   }
   

Answer 2

Full reference present at : listview with checkbox android studio Pass selected items to next activity

Main source code is as below.

Create a model class first

public class Model {

    private boolean isSelected;
    private String animal;

    public String getAnimal() {
        return animal;
    }

    public void setAnimal(String animal) {
        this.animal = animal;
    }

    public boolean getSelected() {
        return isSelected;
    }

    public void setSelected(boolean selected) {
        isSelected = selected;
    }
}

Then in adapter class, setTags to checkbox. Use those tags in onclicklistener of checkbox.

public class CustomAdapter  extends BaseAdapter {

    private Context context;
    public static ArrayList<Model> modelArrayList;


    public CustomAdapter(Context context, ArrayList<Model> modelArrayList) {

        this.context = context;
        this.modelArrayList = modelArrayList;

    }

    @Override
    public int getViewTypeCount() {
        return getCount();
    }
    @Override
    public int getItemViewType(int position) {

        return position;
    }

    @Override
    public int getCount() {
        return modelArrayList.size();
    }

    @Override
    public Object getItem(int position) {
        return modelArrayList.get(position);
    }

    @Override
    public long getItemId(int position) {
        return 0;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        final ViewHolder holder;

        if (convertView == null) {
            holder = new ViewHolder(); LayoutInflater inflater = (LayoutInflater) context
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            convertView = inflater.inflate(R.layout.lv_item, null, true);

            holder.checkBox = (CheckBox) convertView.findViewById(R.id.cb);
            holder.tvAnimal = (TextView) convertView.findViewById(R.id.animal);

            convertView.setTag(holder);
        }else {
            // the getTag returns the viewHolder object set as a tag to the view
            holder = (ViewHolder)convertView.getTag();
        }


        holder.checkBox.setText("Checkbox "+position);
        holder.tvAnimal.setText(modelArrayList.get(position).getAnimal());

        holder.checkBox.setChecked(modelArrayList.get(position).getSelected());

        holder.checkBox.setTag(R.integer.btnplusview, convertView);
        holder.checkBox.setTag( position);
        holder.checkBox.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                View tempview = (View) holder.checkBox.getTag(R.integer.btnplusview);
                TextView tv = (TextView) tempview.findViewById(R.id.animal); 
                Integer pos = (Integer)  holder.checkBox.getTag();
                Toast.makeText(context, "Checkbox "+pos+" clicked!", Toast.LENGTH_SHORT).show();

                if(modelArrayList.get(pos).getSelected()){
                    modelArrayList.get(pos).setSelected(false);
                }else {
                    modelArrayList.get(pos).setSelected(true);
                }

            }
        });

        return convertView;
    }

    private class ViewHolder {

        protected CheckBox checkBox;
        private TextView tvAnimal;

    }

}

Answer 3

make the checkbox non-focusable, and on list-item click do this, here codevalue is the position.

    Arraylist<Integer> selectedschools=new Arraylist<Integer>();

    lvPickSchool.setOnItemClickListener(new AdapterView.OnItemClickListener() 
  {

   @Override
        public void onItemClick(AdapterView<?> parent, View view, int codevalue, long id)
   {
                      CheckBox cb = (CheckBox) view.findViewById(R.id.cbVisitingStatus);

            cb.setChecked(!cb.isChecked());
            if(cb.isChecked())
            {

                if(!selectedschool.contains(codevaule))
                {
                    selectedschool.add(codevaule);
                }
            }
            else
            {
                if(selectedschool.contains(codevaule))
                {
                    selectedschool.remove(codevaule);
                }
            }
        }
    });

Answer 4

You have to add an OnItemClickListener to the listview to determine which item was clicked, then find the checkbox.

mListView.setOnItemClickListener(new OnItemClickListener()
{
    @Override
    public void onItemClick(AdapterView<?> parent, View v, int position, long id)
    {
        CheckBox cb = (CheckBox) v.findViewById(R.id.checkbox_id);
    }
});

Answer 5

It's a simplifications but very easy... You need to add the the focusable flag to the checkbox, as written before. You need also to add the clickable flag, as shown here:

android:focusable="false"
android:clickable="false"

Than you control the checkbox state from within the ListView (ListFragment in my case) onListItemClick event.

This the sample onListItemClick method:

public void onListItemClick(ListView l, View v, int position, long id) {
super.onListItemClick(l, v, position, id);
//Get related checkbox and change flag status..
CheckBox cb = (CheckBox)v.findViewById(R.id.rowDone);
cb.setChecked(!cb.isChecked());
Toast.makeText(getActivity(), "Click item", Toast.LENGTH_SHORT).show();
}

Answer 6

[Custom ListView with CheckBox]

If customlayout use checkbox, you must set checkbox focusable = false

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:orientation="vertical"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent">

  <TextView android:id="@+id/rowTextView" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content"
    android:padding="10dp"
    android:textSize="16sp" >
  </TextView>

  <CheckBox android:id="@+id/CheckBox01" 
    android:layout_width="wrap_content" 
    android:layout_height="wrap_content" 
    android:padding="10dp"
    android:layout_alignParentRight="true" 
    android:layout_marginRight="6sp"
    android:focusable="false">           // <---important
  </CheckBox>

</RelativeLayout>

Readmore : A ListView with Checkboxes (Without Using ListActivity)