How to make the first item of a ListView to be selected as default at startup?

Question

There is a ListView in my App and the ListView has a selector. I want to make the first item of this ListView to be selected as default at the very startup of App, How? Can anyone give some tips? THX a lot.

Swerve

Down vote for not providing some snippet to help you out, Without looking into your code SO can't guess where are you stuck. – Recourse

See also for a complete example: #30409921 – Soricine

Answer 1

You can do this by

yourListView.setSelection(0);
yourListView.getSelectedView().setSelected(true);

I hope this will help you

Rizika

@ChiragPatel will u please help me on this issue #18100256 – Leeanneleeboard

@ChiragPatel Can we select List automatically into string variable please help me how can i select list item with the help of String value – Playsuit

Answer 2

yourlist.setItemChecked(position,true)

Yarvis

Answer 3

This work for me. I hope this will help you. :)

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

    // do someting...
    if(position == 0){
        mListView.performItemClick(convertView, 0, 0);
    }

 }

now i found another good way to implement this.

• Firstly,you should set ListView android:choiceMode=singleChoice

• Secondly,just go ahead as follow,

      int defaultPositon = 0;
      int justIgnoreId = 0;
      mListView.setItemChecked(defaultPositon, true);
      mListView.performItemClick(mListView.getSelectedView(), defaultPositon, justIgnoreId);
  

Neurotic

This works. One problem solved, now next one: selected item is not getting highlighted. WTF Android! – Ene

Answer 4

//put the below code in get view function 
if(position==0)
{
    convertView.setSelected(true); 
}

Billye

Answer 5

I think this will work as we have given 0 index of array to listView

ListView.setSelection(0);

Pandora

Answer 6

Create an onItemClickListener then use this snippet, filling in the appropriate values:

listView.performItemClick(View view, int position, long id);

See the docs for further detail.

Crosswind

Maybe you should provide some code in you question to show us how you are attempting it. – Crosswind

Answer 7

You can call listview.setSelection(0);. Just make sure you are calling this after poplulating your List. If you call it before populating your List it will not work, because it won't have any data at that time.

Peppi

I think your answer is suitable and helpful, but it doesn't work when I put it in my code where in think the list have been populated.Maybe something wrong in other place of the code...... – Swerve

It would be better if you can post code how you are writing it. – Peppi

@LalitPoptani can u help me on this #18100256 – Leeanneleeboard

Answer 8

Below solution works for me:

Setting background/View Id on get View & using the setOnItemClickListener of the List View

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    View v = convertView;
    if (v == null) {
        LayoutInflater vi = (LayoutInflater)
                ctx.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        v = vi.inflate(R.layout.listitems, null);
    }
    ListItem m = items.get(position);

    if (m != null) {

        TextView txt = (TextView)v.findViewById(R.id.textView);
        txt.setText(m.Item);

    }

    // set selected item
    LinearLayout ActiveItem = (LinearLayout) v;
    v.setId(position);
    if (position == GetDeviceDetails.selectedsize)
    {
        ActiveItem.setBackgroundColor(0xFF7F8184);
    }
    return v;
}

In the Activity on Create :

listView1.setOnItemClickListener(
            new AdapterView.OnItemClickListener() {
                public void onItemClick(AdapterView<?> adapter, View v, int position, long id) {
                    adapter.findViewById(GetDeviceDetails.selectedsize).setBackgroundColor(0xFFFFFFF);
                    GetDeviceDetails.selectedsize = position;
                    adapter.findViewById(position).setBackgroundColor(0xFF7F8184);
                    Log.d("Selected Id", "" + v.getId());
                    Log.d("find Selected Id", "" + adapter.findViewById(0));
                }
            });
    listView1.setSelection(0);
    listView1.setItemChecked(0, true);

Banister

Answer 9

This works if you want to click it to get additional event handling done:

listView.getAdapter().getView(position, null, null).performClick();

Fabricant

Answer 10

You can fix it like this.

//set list adapter, then
lv.setItemChecked(1, true);//position 1
lv.setSelection(1);//position 1

Update XML layout with single choice.

<ListView
    android:id="@+id/lv"
    android:layout_width="match_parent"
    android:layout_height="match_parent"  
    android:background="@drawable/list_item_background"
    android:cacheColorHint="#FFFFFF"
    android:choiceMode="singleChoice"
    android:dividerHeight="1dip" >
</ListView>

and set listview background XML as list_item_background.xml,

<?xml version="1.0" encoding="utf-8"?>
     <selector xmlns:android="http://schemas.android.com/apk/res/android">
     <item android:drawable="@drawable/bg_list_default"   android:state_activated="false"/>
     <item android:drawable="@drawable/bg_list_pressed" android:state_pressed="true"/>
     <item android:drawable="@drawable/bg_list_pressed" android:state_activated="true"/>

Underthecounter

Answer 11

THIS WORKS FOR ME.You have to make custom adapter.

     First Create Modal Class

        public class FilterBean {

         String filter_catagory;
                 boolean isSelected;

            public boolean isSelected() {
                return isSelected;
            }

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

          public String getFilter_catagory() {
                return filter_catagory;
            }

            public void setFilter_catagory(String filter_catagory) {
                this.filter_catagory = filter_catagory;
            }

        }


    In Adapter Class

    @Override
        public View getView(final int position, View convertView, ViewGroup parent) {
            convertView = layoutInflater.inflate(R.layout.size_name_indicator, null);
            txt = (TextView) convertView.findViewById(R.id.key_textView);
            txt.setText(getItem(position).getFilter_catagory());

            if(getItem(position).isSelected()){
                txt.setBackgroundColor(context.getResources().getColor(R.color.transparent));
            }else {

                txt.setBackgroundColor(context.getResources().getColor(R.color.colorWhite));
            }


            return convertView;
        }

     public void updateNameBean(String key,boolean checked)
        {

            for(int i=0;i<getCount();i++)
            {
                FilterBean filterBean =  getItem(i);
                if(filterBean.getFilter_catagory().equals(key))
                {
                    filterBean.setSelected(checked);
                }else {
                    filterBean.setSelected(false);
                }
            }
            notifyDataSetChanged();
        }

In Filter Activity or Fragment

 filter_listView.setAdapter(filterNameAdapter);
               filterNameAdapter.updateNameBean(filterNameAdapter.getItem(0).getFilter_catagory(),true);
        filter_listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
                String key = filterNameAdapter.getItem(position).getFilter_catagory();
                filterNameAdapter.updateNameBean(filterNameAdapter.getItem(position).getFilter_catagory(),true);

            }
        }); 

Ilyssa

Answer 12

I have used data binding to solve this,

using the following codebehind:

private List<Unit> _units;
private Unit _selectedUnit;
public Unit selectedUnit{
  get{
    if (_selectedUnit is null){
      return _units.Count > 0 ? _units[0] : null;
    }else{
      return _selectedUnit;
    }
  }
  set{
    if (_selectedUnit != value){
      _selectedUnit = value;
      OnPropertyChanged("selectedUnit");
    }
  }
}
public event PropertyChangedEventHandler PropertyChanged;
protected virtual void OnPropertyChanged(string propertyName){
  var changed = PropertyChanged;
  if (changed != null){
    PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
  }
}

and XAML

<ListView ItemsSource="{Binding units}"
          SelectedItem="{Binding selectedUnit, Mode=TwoWay}">

Lifeordeath

Answer 13

if(position == 0){
        // This is the first item, you need to select this
        //rowview which u inflate under getview 
        rowView.performClick();

    }

i think this will help you . it works for me

Associationism

this will fail because position 0 can call n number of time when listview will get scroll. – Oram