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PORefresh button onClick Listview data must get update in android
 

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    <blockquote> <p><strong>Possible Duplicate:</strong><br> <a href="https://stackoverflow.com/questions/2250770/how-to-refresh-android-listview">How to refresh Android listview?</a> </p> </blockquote> <p>I am looking for using Refresh button refreshing the listview data.. DES:In my app there is refresh button when i onclick on it Listview data which coming from server must get refresh &amp; show update listview data.<br> And I have no idea how to do that. plz suggest me with example.. Thanks in advance. below is my code.</p> <p>Mainactivity.java</p> <pre><code>listView = (ListView) findViewById(R.id.homelistView); listView.setTextFilterEnabled(true); final EfficientAdapter objectAdapter = new EfficientAdapter(this); listView.setAdapter(objectAdapter); Button refreshButton= (Button)findViewById(R.id.refreshButton); refreshButton.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { objectAdapter.notifyDataSetChanged(); } }); </code></pre> <p>EfficientAdapter.java</p> <pre><code>public static class EfficientAdapter extends BaseAdapter { private LayoutInflater mInflater; private Context context; public EfficientAdapter(Context context) { mInflater = LayoutInflater.from(context); this.context=context; } public int getCount() { return CountriesList.name.length; } public Object getItem(int position) { return position; } public long getItemId(int position) { return position; } public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder; if (convertView == null) { convertView = mInflater.inflate(R.layout.homemplebrowview, null); holder = new ViewHolder(); holder.text1 = (TextView) convertView .findViewById(R.id.name); holder.text2 = (TextView) convertView .findViewById(R.id.mrn); holder.text3 = (TextView) convertView .findViewById(R.id.date); holder.text4 = (TextView) convertView .findViewById(R.id.age); holder.text5 = (TextView) convertView .findViewById(R.id.gender); holder.text6 = (TextView) convertView .findViewById(R.id.wardno); holder.text7 = (TextView) convertView .findViewById(R.id.roomno); holder.text8 = (TextView) convertView .findViewById(R.id.bedno); holder.btnList = (Button)convertView.findViewById(R.id.listbutton); // holder.btnList.setOnClickListener(this); holder.btnList.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Intent next=new Intent(context, SeviceDetails.class); context.startActivity(next); } }); convertView.setTag(holder); } else { holder = (ViewHolder) convertView.getTag(); } holder.text1.setText(CountriesList.name[position]); holder.text2.setText(CountriesList.mrn[position]); holder.text3.setText(CountriesList.actualstart[position]); holder.text4.setText(CountriesList.age[position]); holder.text5.setText(CountriesList.gender[position]); holder.text6.setText(CountriesList.wardNo[position]); holder.text7.setText(CountriesList.roomNo[position]); holder.text8.setText(CountriesList.bedNo[position]); return convertView; } static class ViewHolder { public Button btnList; public TextView text8; public TextView text7; public TextView text6; public TextView text5; public TextView text4; public TextView text1; public TextView text2; public TextView text3; } @Override public void notifyDataSetChanged() // Create this function in your adapter class { super.notifyDataSetChanged(); } } } </code></pre>
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    1. COTry this: http://www.androidhive.info/2012/03/android-listview-with-load-more-button/. For automatic additions, try this: http://www.mysamplecode.com/2012/07/android-listview-load-more-data.html. And, don't forget the power of SEARCHING!!
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      1. USSiddharth Lele
    2. COIn your main Activity why you call setAdapter twice?
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      1. USMohit Verma
    3. COYou should remove this line listView.setAdapter(new EfficientAdapter(this));
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      1. USMohit Verma
 

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