How can I auto refresh my listview in Fragment?

Question

I am implementing custom listview using Base Adapter after entering the data my list is not refreshed automatically. I need to reopen the fragment to see the update.

public class Lead_Adapter extends BaseAdapter {
private Context context;
private ArrayList<Lead_Model> leadarrayList;

public Lead_Adapter(Context context,ArrayList<Lead_Model>arrayList){

    this.context = context;
    this.leadarrayList = arrayList;

}


@Override
public int getCount() {
    return this.leadarrayList.size();
}

@Override
public Object getItem(int position) {
    return leadarrayList.get(position);
}

@Override
public long getItemId(int position) {
    return position;
}

@Override
public View getView(int position, View convert_view, ViewGroup parent) {
    LayoutInflater layoutInflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    convert_view = layoutInflater.inflate(R.layout.lead_listview, null);
    TextView Company_Name = convert_view.findViewById(R.id.company_name_listview);
    TextView Lead_Status = convert_view.findViewById(R.id.lead_status_listview);
    TextView Lead_Date = convert_view.findViewById(R.id.lead_date_listview);

    Lead_Model leadModel = leadarrayList.get(position);
    Company_Name.setText(leadModel.getCompany_name());
    Lead_Status.setText(leadModel.getLead_status());
    Lead_Date.setText(leadModel.getDate());
    return convert_view;
}

@VladyslavMatviienko To see upadte I need to reopen the fragment — Tarun Sharma, Sep 25 '19 at 05:19
@VladyslavMatviienko To see upadte I need to reopen the fragment — Tarun Sharma, Sep 25 '19 at 05:20
after adding data to leadarrayList,you need notifyDataSetChanged() — Ankit, Sep 25 '19 at 05:20
I am entering the data within activity and after click submit button, I press the back button to see the list view the listview is showing on fragment if I want to see changes I need to reopen the fragment — Tarun Sharma, Sep 25 '19 at 05:40
Trivia: if you write android refreshing data in listview, there will be a result for your question. — barotia, Sep 25 '19 at 05:40
you need to make the ListView know that there is some new data. It won't understand it in a magical way itself. — Vladyslav Matviienko, Sep 25 '19 at 06:35

score 2 · Answer 1 · answered Sep 25 '19 at 05:21

2

after adding your data into the adapter in your fragment do like this

adapter.notifyDataSetChanged();

answered Sep 25 '19 at 05:21

YuvrajsinhJadeja

1,383
7
23

@TARUNSHARMA please accept answer and upvote if it is helpful. – YuvrajsinhJadeja Sep 25 '19 at 06:08
Please never ask to upvote your answer. It is not up to you to choose whether it is good or not. If it is good, then it will naturally be upvoted by community – Vladyslav Matviienko Sep 25 '19 at 08:51

score 1 · Answer 2 · answered Sep 25 '19 at 05:20

1

You can call notifyDataSetChanged() when you finishing up adding your data.

answered Sep 25 '19 at 05:20

Android

11
2

score 0 · Answer 3 · answered Sep 25 '19 at 05:21

0

When you are adding items into arrayList in your fragment you have to do adapter.notifyDataSetChanged()

answered Sep 25 '19 at 05:21

anilkumar7717

86
4

score 0 · Answer 4 · answered Sep 25 '19 at 05:28

0

just notify the list once you done with entering the data, no need to reopen the fragment.

items.clear();
items = db.getItems(); // fetch items from database
listAdapter.notifyDataSetChanged();

answered Sep 25 '19 at 05:28

Arwy Shelke

333
1
2
12

How can I auto refresh my listview in Fragment?

4 Answers4