Get Selected Item Using Checkbox in Listview

Get Selected Item Using Checkbox in Listview

Assuming you want to get items of row whose check boxes are checked at the click of a button. Assumption based on your title "Get Selected Item Using Checkbox in Listview when I click a Button".

Try the below. Make only changes as below. Keep the rest the same.

Explanation and discussion on the topic @

https://groups.google.com/forum/?fromgroups#!topic/android-developers/No0LrgJ6q2M

MainActivity.java

public class MainActivity extends Activity {
     AppInfoAdapter adapter ;
     AppInfo app_info[] ;
        @Override
        protected void onCreate(Bundle savedInstanceState){
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);


            final ListView listApplication = (ListView)findViewById(R.id.listApplication);
            Button b= (Button) findViewById(R.id.button1);
            b.setOnClickListener(new OnClickListener()
            {

                @Override
                public void onClick(View v) {
                    // TODO Auto-generated method stub

                    StringBuilder result = new StringBuilder();
                    for(int i=0;i<adapter.mCheckStates.size();i++)
                    {
                        if(adapter.mCheckStates.get(i)==true)
                        {

                                           result.append(app_info[i].applicationName);
                            result.append("\n");
                        }

                    }
                    Toast.makeText(MainActivity.this, result, 1000).show();
                }

            });

            ApplicationInfo applicationInfo = getApplicationInfo();
            PackageManager pm = getPackageManager();
            List<PackageInfo> pInfo = new ArrayList<PackageInfo>();
            pInfo.addAll(pm.getInstalledPackages(0));
            app_info = new AppInfo[pInfo.size()];

            int counter = 0;
            for(PackageInfo item: pInfo){
                try{

                    applicationInfo = pm.getApplicationInfo(item.packageName, 1);

                    app_info[counter] = new AppInfo(pm.getApplicationIcon(applicationInfo), 
                            String.valueOf(pm.getApplicationLabel(applicationInfo)));

                    System.out.println(counter);

                }
                catch(Exception e){
                     System.out.println(e.getMessage());
                }

                counter++;
            }

           adapter = new AppInfoAdapter(this, R.layout.listview_item_row, app_info);
            listApplication.setAdapter(adapter);

        }
}

activity_main.xml ListView with button at the buton

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context=".MainActivity" >

    <ListView
        android:layout_width="fill_parent"
        android:id="@+id/listApplication"
        android:layout_height="fill_parent"
        android:layout_above="@+id/button1"
        android:text="@string/hello_world" />

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:layout_centerHorizontal="true"
        android:text="Button" />

</RelativeLayout>

AppInfoAdapter

public class AppInfoAdapter extends ArrayAdapter<AppInfo> implements CompoundButton.OnCheckedChangeListener
{  SparseBooleanArray mCheckStates; 

    Context context;
    int layoutResourceId;
    AppInfo  data[] = null;

    public AppInfoAdapter(Context context, int layoutResourceId, AppInfo[] data){
        super(context, layoutResourceId,data);
        this.layoutResourceId = layoutResourceId;
        this.context = context;
        this.data = data;
        mCheckStates = new SparseBooleanArray(data.length);
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent){

        View row = convertView;
        AppInfoHolder holder= null;

        if (row == null){

            LayoutInflater inflater = ((Activity)context).getLayoutInflater();
            row = inflater.inflate(layoutResourceId, parent, false);

            holder = new AppInfoHolder();

            holder.imgIcon = (ImageView) row.findViewById(R.id.imageView1);
            holder.txtTitle = (TextView) row.findViewById(R.id.textView1);
            holder.chkSelect = (CheckBox) row.findViewById(R.id.checkBox1);

            row.setTag(holder);

        }
        else{
            holder = (AppInfoHolder)row.getTag();
        }


        AppInfo appinfo = data[position];
        holder.txtTitle.setText(appinfo.applicationName);
        holder.imgIcon.setImageDrawable(appinfo.icon);
       // holder.chkSelect.setChecked(true);
        holder.chkSelect.setTag(position);
        holder.chkSelect.setChecked(mCheckStates.get(position, false));
        holder.chkSelect.setOnCheckedChangeListener(this);
        return row;

    }
    public boolean isChecked(int position) {
        return mCheckStates.get(position, false);
    }

    public void setChecked(int position, boolean isChecked) {
        mCheckStates.put(position, isChecked);

    }

    public void toggle(int position) {
        setChecked(position, !isChecked(position));

    }
@Override
public void onCheckedChanged(CompoundButton buttonView,
        boolean isChecked) {

     mCheckStates.put((Integer) buttonView.getTag(), isChecked);    

}
static class AppInfoHolder
{
    ImageView imgIcon;
    TextView txtTitle;
    CheckBox chkSelect;

}
}

Here's the snap shot

Sample Image

VB.net listview checkbox get selected item

It sounds like you are wanting to get the checked property but are instead setting the selected property. Try this:

For Each item As ListViewItem In Me.listAwal.Items 
    If item.Checked Then
        'Do something with this item
    End If
Next

Get checked items from ListView with check box

  boolean bulkflag = false;
  ListView reportslistview = (ListView) findViewById(android.R.id.list);
  public class MyAdapter extends SimpleAdapter {
    //private List<Table> tables;
    SharedPreferences prefs;
    private Activity activity;
    String val = "";

    //@SuppressWarnings("unchecked")
    public MyAdapter(Activity context, List<? extends Map<String, String>> tables, int resource, String[] from,
            int[] to) {
        super(context, tables, resource, from, to);
        //this.tables = (List<Table>) tables;
        activity    =   context;
    }

    public View getView(final int position, final View convertView, ViewGroup parent) {
        View row = super.getView(position, convertView, parent);
        if (row == null) 
        {
            LayoutInflater inflater = (LayoutInflater) activity
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            row = inflater.inflate(R.layout.reports_list, null);
        }       

        final CheckBox cBox=(CheckBox)row.findViewById(R.id.cb1);
        if(bulkflag)
        {
            cBox.setVisibility(View.VISIBLE);
        }
        else
        {
            cBox.setVisibility(View.GONE);
        }
        cBox.setOnClickListener(new OnClickListener() {

            public void onClick(View v) {

                if(cBox.isChecked())
                {
                    selectedIds.add(recIdArr.get(reportslistview.getPositionForView(cBox)));
                    //System.out.println("position "+reportslistview.getPositionForView(cBox));
                }
                else
                {
                    selectedIds.remove(recIdArr.get(reportslistview.getPositionForView(cBox)));
                }
            }
        });
        return row;
    }
}

Checking ====>

 for(int i=0;i<selectedIds.size();i++)
 {
    System.out.println("delete multiple"+selectedIds.size()+" "+Integer.parseInt(selectedIds.get(i)));
 }

Declare selectedIds as a global variable

Getting selected Items from a ListView | CheckBoxListCell

Use this way

public void start(Stage primaryStage) {
        try {
            ListView<String> listView = new ListView<>();
            Button button = new Button("Get");
            List<String> list = new ArrayList<>();
            String[] toppings = { "Cheese", "Pepperoni", "Black Olives" };
            listView.getItems().addAll(toppings);
            listView.setCellFactory(CheckBoxListCell.forListView(new Callback<String, ObservableValue<Boolean>>() {
                @Override
                public ObservableValue<Boolean> call(String item) {
                    BooleanProperty observable = new SimpleBooleanProperty();
                    observable.addListener((obs, wasSelected, isNowSelected) -> {
                        if (isNowSelected) {
                            list.add(item);
                        } else {
                            list.remove(item);
                        }
                    });
                    return observable;
                }
            }));

            button.setOnAction(e -> {
                for (int i = 0; i < list.size(); i++) {
                    System.out.println(list.get(i));
                }
            });

            VBox root = new VBox();
            root.setAlignment(Pos.CENTER);
            root.getChildren().addAll(listView, button);
            Scene scene = new Scene(root, 300, 250);
            primaryStage.setScene(scene);
            primaryStage.show();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

How to get selected items in listview with checkbox on button click

You could try using SparseBooleanArray to get the selected items (from positions).
Similar stackoverflow questions with relevant answers:

  1. How to get Selected items from Multi Select List View
  2. How to get all checked items from a ListView?

How do I get all the selected list Items using Checkbox

The below code working fine for me so you can try this

activity_main.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">

<Button
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/select_btn"
    android:text="Select"/>

<ListView
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/listview"/>

list_row.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/LinearLayout1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:padding="4dp"
android:orientation="horizontal" >

<CheckBox
    android:id="@+id/cbBox"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center_vertical" >
</CheckBox>

<TextView
    android:layout_height="wrap_content"
    android:id="@+id/textView1"
    android:layout_width="wrap_content"
    android:layout_gravity="center_vertical"
    android:ellipsize="marquee" />

Service

import java.io.Serializable;
public class Service implements Serializable
{

private static final long serialVersionUID = 1L;

private String name;
private boolean selected;

public Service() {
    // TODO Auto-generated constructor stub
}

public Service(String name) {
    super();
    this.name = name;
}


public String getName() {
    return name;
}

public boolean isSelected() {
    return selected;
}

public void setSelected(boolean selected) {
    this.selected = selected;
}

public void setName(String name) {
    this.name = name;

}

}

ServiceAdapter

import android.content.Context;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.TextView;
import android.widget.Toast;
import java.util.ArrayList;
public class ServiceAdapter extends BaseAdapter {
ArrayList<Service> actorList;
LayoutInflater vi;
Context context;

public ServiceAdapter(Context context,ArrayList<Service> objects) {
    this.context= context;
    this.vi = (LayoutInflater) context
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    this.actorList = objects;
}


@Override
public View getView(final int position, View convertView, ViewGroup parent) {
    // convert view = design
    final ViewHolder holder;
    if (convertView == null) {
        holder = new ViewHolder();
        convertView = vi.inflate(R.layout.list_row, null);

        holder.tvName = (TextView) convertView.findViewById(R.id.textView1);
        holder.checkBox = (CheckBox) convertView.findViewById(R.id.cbBox);

        convertView.setTag(holder);
    } else
        holder = (ViewHolder) convertView.getTag();

    holder.tvName.setText(actorList.get(position).getName());
    holder.checkBox.setChecked(actorList.get(position).isSelected());

    holder.checkBox.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            boolean isSelected = ((CheckBox)v).isChecked();
            actorList.get(position).setSelected(isSelected);
        }
    });

    return convertView;

}


static class ViewHolder {

    public TextView tvName;
    public CheckBox checkBox;

}


@Override
public int getCount() {
    // TODO Auto-generated method stub
    return actorList.size();
}


@Override
public Object getItem(int position) {
    // TODO Auto-generated method stub
    return actorList.get(position);
}


@Override
public long getItemId(int position) {
    // TODO Auto-generated method stub
    return position;
}

public ArrayList<Service> getSelectActorList(){
    ArrayList<Service> list = new ArrayList<>();
    for(int i=0;i<actorList.size();i++){
        if(actorList.get(i).isSelected())
            list.add(actorList.get(i));
    }
    return list;
}

}

MainActivity

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.Button;
import android.widget.ListView;
import android.widget.Toast;

import java.util.ArrayList;

public class MainActivity extends AppCompatActivity {

private ListView listView;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    final ListView listView = (ListView)findViewById(R.id.listview);
    listView.setAdapter(new ServiceAdapter(this,sampleData()));

    Button btn = (Button)findViewById(R.id.select_btn);
    btn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            ArrayList<Service> actorList = ((ServiceAdapter)listView.getAdapter()).getSelectActorList();
            Toast.makeText(MainActivity.this,""+actorList.size(),Toast.LENGTH_LONG).show();
        }
    });

}


public ArrayList<Service> sampleData(){
    ArrayList<Service> dataList = new ArrayList<>();
    for(int i=0;i<30;i++){
        Service servic = new Service();
        servic.setName("Test"+i);
        dataList.add(servic);
    }

    return dataList;
}

}

How to get a list of selected items from a listview with checkboxes? (Without code behind)

Should I add a bool property display in the "category" model and bind it to the checkbox?

Yes.

If yes, I still don't know how to get a list of all thicked items.

Just filter them out from the courseCategories collection, for example using LINQ:

var checkedItems = courseCategories.Where(x => x.YourBoolProperty).ToArray():

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