Hello Android Developers,
I want to show progressbar during web service request, get the JSON
response and make it listview . I tried Async but i don't know how to make
listview in onPostExecute method.
*
My sample code without ProgressDialog*:
public class HomeActivity extends ListActivity {
setContentView(R.layout.home);
HttpGet httpget = new
HttpGet(getString(R.string.app_url)+"api/folders?authentication_token="+authentication_token+"&secret_token="+secret_token);
httpget.addHeader("Accept","application/json");
try {
response = httpclient1.execute(httpget);
HttpEntity resEntity = response.getEntity();
if (resEntity != null) {
JSONArray jarr = new
JSONArray(EntityUtils.toString(resEntity));
data1 = new Vector<RowData>();
for(int i=0; i<jarr.length(); i++)
{
jObj =jarr.getJSONObject(i);
try {
folder_name.add(jObj.get("name").toString());
rd = new RowData(i,
jObj.get("_id").toString(),jObj.get("icon_name").toString(),jObj.get("name").toString());
} catch (ParseException e) {
e.printStackTrace();
}
data1.add(rd);
}
CustomAdapter adapter = new CustomAdapter(this,
R.layout.list,R.id.title, data1);
setListAdapter(adapter);
private class RowData {
protected int mId;
protected String mFolderid;
protected String mIcon_name;
protected String mName;
RowData(int id,String folderid,String icon_name,String name){
mId=id;
mFolderid=folderid;
mIcon_name = icon_name;
mName=name;
}
public String toString() {
return mId+" "+mFolderid+" "+mIcon_name+" "+mName;
}
}
private class CustomAdapter extends ArrayAdapter<RowData> {
public CustomAdapter(Context context, int resource,int
textViewResourceId, Vector<RowData> data1) {
super(context, resource, textViewResourceId, data1);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder = null;
TextView title = null;
TextView detail = null;
ImageView i11=null;
RowData rowData= getItem(position);
if(null == convertView){
convertView = mInflater.inflate(R.layout.list, null);
holder = new ViewHolder(convertView);
convertView.setTag(holder);
}
holder = (ViewHolder) convertView.getTag();
title = holder.gettitle();
title.setText(rowData.mName);
String icon=rowData.mIcon_name.toLowerCase();
i11=holder.getImage();
int path=getResources().getIdentifier(icon,"drawable", "com.test123");
i11.setImageDrawable(getResources().getDrawable(path));
return convertView;
}
public class ViewHolder {
private View mRow;
private TextView title = null;
private TextView detail = null;
private ImageView i11=null;
public ViewHolder(View row) {
mRow = row;
}
public TextView gettitle() {
if(null == title){
title = (TextView) mRow.findViewById(R.id.title);
}
return title;
}
public TextView getdetail() {
if(null == detail){
detail = (TextView) mRow.findViewById(R.id.detail);
}
return detail;
}
public ImageView getImage() {
if(null == i11){
i11 = (ImageView) mRow.findViewById(R.id.img);
}
return i11;
}
}
}
}
Please suggest me.
Thanks and Regards, Dhamodharan.N
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