CODEWITHSUNDEEP
androidlistviewcheckbox
Amresh
Amresh

Reputation: 2108

Android : At a time only one item isChecked in listview with checkboxes

I have a Custom ListView that contains checkbox and `TextView' per row. I want to set it up so that only one checkbox can be selected at a time.... Thanks in Advance .

Upvotes: 1

Views: 4495

Answers (2)

Kanaiya Katarmal
Kanaiya Katarmal

Reputation: 6108

Here is what i would do if i need to select only single item at a time.

Home.java (Activity)

package com.lvcheck.activities;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;

public class Home extends Activity 
{
    private ListView lvCheckBox;
    private Button btnCheckAll, btnClearALl;
    private String[] arr = {"One", "Two", "Three", "Four", "Five", "Six"};

    @Override
    public void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        btnCheckAll = (Button)findViewById(R.id.btnCheckAll);
        btnClearALl = (Button)findViewById(R.id.btnClearAll);

        lvCheckBox = (ListView)findViewById(R.id.lvCheckBox);
        lvCheckBox.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
        lvCheckBox.setAdapter(new ArrayAdapter<String>(this,
                android.R.layout.simple_list_item_multiple_choice, arr));


        btnCheckAll.setOnClickListener(new OnClickListener() 
        {           
            @Override
            public void onClick(View arg0) 
            {
                for(int i=0 ; i < lvCheckBox.getAdapter().getCount(); i++)
                {
                    lvCheckBox.setItemChecked(i, true);             
                }
            }
        });

        btnClearALl.setOnClickListener(new OnClickListener() 
        {           
            @Override
            public void onClick(View v) 
            {
                for(int i=0 ; i < lvCheckBox.getAdapter().getCount(); i++)
                {
                    lvCheckBox.setItemChecked(i, false);                
                }
            }
        });
    }
}

and my (main.xml) XML file should like this

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

    <LinearLayout
        android:layout_width="fill_parent"
        android:orientation="horizontal"
        android:gravity="center"
        android:layout_height="wrap_content">

        <Button
            android:layout_width="wrap_content"
            android:text="Check All"
            android:layout_marginRight="7dip"
            android:id="@+id/btnCheckAll"
            android:layout_height="wrap_content">
        </Button>
        <Button
            android:layout_width="wrap_content"
            android:text="Clear All"
            android:id="@+id/btnClearAll"
            android:layout_height="wrap_content">
        </Button>
    </LinearLayout>

    <ListView
        android:layout_width="fill_parent"
        android:id="@+id/lvCheckBox"
        android:fadingEdge="none"
        android:cacheColorHint="@null"
        android:layout_height="fill_parent">
    </ListView>
</LinearLayout>

so the output will be like this way.. enter image description here

Source: here

let me know if you have any trouble regarding this.

Edit: check this useful link: Custom Single choice ListView

Upvotes: 0

InnocentKiller
InnocentKiller

Reputation: 5234

if you are using this default class

mAdapter = new ArrayAdapter<String>(this,
                        android.R.layout.simple_list_item_multiple_choice, mData);

then you can use 

setChoiceMode(ListView.CHOICE_MODE_SINGLE);

or if you are using any custom class then set this as follow.

public View getView(int position, View convertView, ViewGroup parent) {
        ViewHolder holder = null;

holder.mCheckBox = (CheckBox) convertView.findViewById(R.id.checkBox1);

holder.mCheckBox.setTag(position);
        holder.mCheckBox
                .setOnCheckedChangeListener(new OnCheckedChangeListener() {
                    @Override
                    public void onCheckedChanged(CompoundButton buttonView,
                            boolean isChecked) {
                                                 // do your stuff here.
                    }
                });

this will allow you to click only single check-box,

Upvotes: 1

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