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Only select one radio button in the user list at a time, android

I am trying to create my own list view. Each list entry will have an image, a text image and a radio object. I finally made a list, but now I have a problem with the selection of radio buttons.

I want that every time the user clicks anywhere in the record, he must set the corresponding radio button and automatically deselect other radio buttons in the list.

Here is my code: bus_item.xml: -

<?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"
    android:orientation="horizontal" >

    <ImageView
        android:id="@+id/imglist_icon"
        android:layout_width="40dp"
        android:layout_height="40dp"
        android:layout_gravity="center_vertical"
        android:layout_margin="10dp"
        android:src="@drawable/alaknanda" />

    <TextView
        android:id="@+id/txtlist_name"
        android:layout_width="0dp"
        android:layout_weight="1"
        android:layout_height="match_parent"
        android:gravity="center_vertical"
        android:text="Alaknanda"
        android:textSize="22sp"
        android:textStyle="bold" />

    <RadioButton
        android:id="@+id/radio_list"
        android:focusable="false"
        android:focusableInTouchMode="false"
        android:layout_margin="10dp"
        android:layout_width="wrap_content"
        android:layout_height="match_parent" />


</LinearLayout>

BusListActivity.java: -

package com.hpubts50.hpubustrackerserver;

import android.app.ListActivity;
import android.content.Context;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.RadioButton;
import android.widget.TextView;

public class BusListActivity extends ListActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_bus_list);

        // Setting List Adapter for custom list
        setListAdapter(new MyBusListAdapter(this, android.R.layout.simple_list_item_1, R.id.txtlist_name, getResources().getStringArray(R.array.HPU_Buses)));
    }

    @Override
    protected void onListItemClick(ListView l, View v, int position, long id) {
        // TODO Auto-generated method stub
        //super.onListItemClick(l, v, position, id);
        Log.e("MYTAG",""+position);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.bus_list, menu);
        return true;
    }

    // Custom Adapter inner class for custom list

    private class MyBusListAdapter extends ArrayAdapter<String> {

        public MyBusListAdapter(Context context, int resource, int textViewResourceId, String[] strings) {
            super(context, resource, textViewResourceId, strings);
            // TODO Auto-generated constructor stub
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            Log.e("MYTAG","one");
            LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            View row = inflater.inflate(R.layout.bus_item, parent, false);
            String[] items = getResources().getStringArray(R.array.HPU_Buses);
            Log.e("MYTAG","two");

            ImageView imglist_icon = (ImageView) row.findViewById(R.id.imglist_icon);
            TextView txtlist_name = (TextView) row.findViewById(R.id.txtlist_name);
            RadioButton radio_list = (RadioButton) row.findViewById(R.id.radio_list);
            Log.e("MYTAG","three");

            txtlist_name.setText(items[position]);
            Log.e("MYTAG","four");

            if (items[position].equals("Alakananda")) {
                imglist_icon.setImageResource(R.drawable.alaknanda);
            } else if (items[position].equals("Alakananda")) {
                imglist_icon.setImageResource(R.drawable.alaknanda);
            }else if (items[position].equals("Chetanya")) {
                imglist_icon.setImageResource(R.drawable.chetanya);
            }else if (items[position].equals("Garuda")) {
                imglist_icon.setImageResource(R.drawable.garuda);
            }else if (items[position].equals("Nandi")) {
                imglist_icon.setImageResource(R.drawable.nandi);
            }else if (items[position].equals("Neela")) {
                imglist_icon.setImageResource(R.drawable.neela);
            }
            Log.e("MYTAG","five");

            return row;
        }
    }
}

activity_bus_list.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"
    tools:context=".BusListActivity" >

    <ListView
        android:id="@android:id/list"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >
    </ListView>

</LinearLayout>
+3
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3 answers

, . , , , , .

  • RadioButton "selected" .
  • onClickListener getView
  • "selected" , "" , .
  • .
  • "selected" , , .
class FolderAdapter extends ArrayAdapter<String>
{
    ArrayList<File> list;
    Context context;
    RadioButton selected=null;

    public FolderAdapter(Context context, int resource, ArrayList<File> list)
    {
        super(context, resource);
        this.list = list;
        this.context = context;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent)
    {
        LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View view = inflater.inflate(R.layout.fragment_e_row, parent, false);
        final RadioButton rbFolder = (RadioButton) view.findViewById(R.id.rbFolder);

        rbFolder.setOnClickListener(new View.OnClickListener()
        {
            @Override
            public void onClick(View v)
            {
                if(selected != null)
                {
                    selected.setChecked(false);
                }

                rbFolder.setChecked(true);
                selected = rbFolder;
            }
        });
        rbFolder.setText(list.get(position).getName());
        return view;
    }

    @Override
    public int getCount()
    {
        return list.size();
    }
}
+10
@Override
public View getView(final int position, View convertView, ViewGroup viewGroup) {
    View vi = convertView;

    if (vi == null) {
        LayoutInflater inflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        vi = inflater.inflate(R.layout.row_search_engine, null);

    }
    browserImage = (ImageView) vi.findViewById(R.id.list_image);
    browserType = (TextView) vi.findViewById(R.id.browswer_name);
    browserType.setText(browser_names[position]);
    browserImage.setImageResource(image_id[position]);
    check = (RadioButton) vi.findViewById(R.id.check);
    check.setChecked(position == selectedPosition);
    check.setTag(position);
    check.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            selectedPosition = (Integer)view.getTag();
            notifyDataSetChanged();
        }
    });
    return vi;
}

, ... , .. selectedPosition = 0 .

+1

:

ListView l = getListView();
// because you just want a single selection
l.setChoiceMode(ListView.CHOICE_MODE_SINGLE);

listview Checkable, : . β†’ ListView CHOICE_MODE_MULTIPLE CheckedText

, , : RadioGroup ListView?

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