How To Select Item In The List View Programmatically

I have an ArrayList List which contains some items from the listview all_list. How can I select these items in the list view all_list programmatically by checking the

Solution 1:

set an onItemClickListener to the listview such that on click, you set a boolean flag that sets the checkbox in each row to selected. then call notifyDataSetChanged()

Solution 2:

Try this

MainActivity.java

package com.example.multiseekbar;

import java.util.ArrayList;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;


publicclassMainActivityextendsActivity {

    ListView listView1;

    ArrayList<ModelClass> modelClass = newArrayList<ModelClass>();
    FruitSelectAdapter adapter;

    @OverrideprotectedvoidonCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        modelClass.add(newModelClass("Orange", true));
        modelClass.add(newModelClass("Apple", false));
        modelClass.add(newModelClass("Banana", false));
        modelClass.add(newModelClass("Grapes", false));

        listView1 = (ListView) findViewById(R.id.listView1);
        adapter = newFruitSelectAdapter(MainActivity.this, modelClass);
        listView1.setAdapter(adapter);

        listView1.setOnItemClickListener(newOnItemClickListener() {

            @OverridepublicvoidonItemClick(AdapterView<?> arg0, View arg1, int arg2,
                    long arg3) {
                // TODO Auto-generated method stubif(modelClass.get(arg2).isSelected()){
                    modelClass.get(arg2).setSelected(false);
                }else{
                    modelClass.get(arg2).setSelected(true);
                }

                adapter.notifyDataSetChanged();
            }
        });


    }

}

activity_main.xml

<RelativeLayoutxmlns: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"tools:context="com.example.multiseekbar.MainActivity" ><ListViewandroid:id="@+id/listView1"android:layout_width="match_parent"android:layout_height="fill_parent"
         ></ListView></RelativeLayout>

FruitSelectAdapter.java

package com.example.multiseekbar;

import java.util.ArrayList;

import android.app.Activity;
import android.content.Context;
import android.graphics.Color;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.CheckBox;
import android.widget.LinearLayout;
import android.widget.TextView;

publicclassFruitSelectAdapterextendsBaseAdapter
{

    private Activity activity;
    private LayoutInflater inflater;

    private ArrayList<ModelClass> modelClass=null;

    publicFruitSelectAdapter(Activity activity, ArrayList<ModelClass> modelClass) {
        this.activity = activity;
        this.modelClass = modelClass;
    }


    @OverridepublicintgetCount() {
        // TODO Auto-generated method stubreturn modelClass.size();
    }
    @Overridepublic Object getItem(int position) {
        // TODO Auto-generated method stubreturn modelClass.get(position);
    }
    @OverridepubliclonggetItemId(int position) {
        // TODO Auto-generated method stubreturn position;
    }
    @Overridepublic View getView(finalint position, View convertView, ViewGroup parent) {
        // TODO Auto-generated method stubfinal ViewHolder holder;    
        if (inflater == null)
            inflater = (LayoutInflater) activity.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

        if (convertView == null) {
            holder =newViewHolder();
            convertView = inflater.inflate(R.layout.row1, null);            
            holder.txtFruitName = (TextView)convertView.findViewById(R.id.txtFruitName);
            holder.cbFruitSelectStatus = (CheckBox)convertView.findViewById(R.id.cbFruitSelectStatus);
            holder.linLayBackground = (LinearLayout) convertView.findViewById(R.id.linLayBackground);
            convertView.setTag(holder);
        }else{
            holder = (ViewHolder)convertView.getTag();
        }

        holder.txtFruitName.setText(modelClass.get(position).getFruitName());
        holder.cbFruitSelectStatus.setChecked(modelClass.get(position).isSelected());

        if(modelClass.get(position).isSelected()){
            holder.linLayBackground.setBackgroundColor(Color.parseColor("#80ccff"));
        }else{
            holder.linLayBackground.setBackgroundColor(Color.parseColor("#FFFFFF"));
        }

        return convertView;
    }

    classViewHolder{       
        TextView txtFruitName;
        CheckBox cbFruitSelectStatus;
        LinearLayout linLayBackground;
    }

}

row1.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayoutxmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:id="@+id/linLayBackground"android:layout_height="70dp"android:orientation="horizontal"
     ><TextViewandroid:id="@+id/txtFruitName"android:layout_width="0dp"android:layout_height="wrap_content"android:text="Fruit name"android:layout_weight="1"android:textSize="16sp"android:textColor="#000000" /><CheckBoxandroid:id="@+id/cbFruitSelectStatus"android:layout_width="wrap_content"android:layout_height="wrap_content"android:clickable="false"android:focusable="false"android:focusableInTouchMode="false" /></LinearLayout>

ModelClass.java

package com.example.multiseekbar;

publicclassModelClass {

    String fruitName;
    boolean isSelected=false;

    publicModelClass(String fruitName, boolean isSelected) {
        this.fruitName = fruitName;
        this.isSelected = isSelected;
    }

    publicStringgetFruitName() {
        return fruitName;
    }

    publicvoidsetFruitName(String fruitName) {
        this.fruitName = fruitName;
    }

    publicbooleanisSelected() {
        return isSelected;
    }

    publicvoidsetSelected(boolean isSelected) {
        this.isSelected = isSelected;
    }


}