Wie zu verwenden onclick-button in baseAdapter

Wie zu verwenden, klicken Sie auf die Ereignis-Taste, um baseadapter.. habe viel versucht aber keine Verwendung.. In meinem Projekt gibt es custom listview, es enthält text,button(btnlist), fastscroll-index. wenn ich den onclick-button(btnlist) es ist nicht gng zu anderen Aktivität, kein Fehler wird auch angezeigt,kein toast..

Plz helfen mir, mit Beispiel . thank u im Voraus.

Quick ref: getview---> Halter.btnList.setOnClickListener

EfficientAdapter.java

public class EfficientAdapter extends BaseAdapter implements SectionIndexer, OnClickListener {
IndexableListView mListView;
private String mSections = "#ABCDEFGHIJKLMNOPQRSTUVWXYZ";
ArrayList<Patient> patientListArray;

private Intent intent;
private Patient patient;
private LayoutInflater mInflater;
private Context context;
private int positions;
ViewHolder holder;


public EfficientAdapter(Context context) {
    mInflater = LayoutInflater.from(context);
    this.context = context;

    String patientListJson = CountriesList.jsonData;
    JSONObject jssson;
    try {
        jssson = new JSONObject(patientListJson);
        patientListJson = jssson.getString("PostPatientDetailResult");
    } catch (JSONException e) {
        e.printStackTrace();
    }
    Gson gson = new Gson();
    JsonParser parser = new JsonParser();
    JsonArray Jarray = parser.parse(patientListJson).getAsJsonArray();
    patientListArray = new ArrayList<Patient>();
    for (JsonElement obj : Jarray) {
        Patient patientList = gson.fromJson(obj, Patient.class);
        patientListArray.add(patientList);
    // Log.i("patientList", patientListJson);

    }
}


public int getCount() {

    return patientListArray.size();
}

public Object getItem(int position) {

    return position;
}

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

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

    this.positions = position;      
    View rowView = convertView;

    if (rowView  == null) {                     
        LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        rowView = inflater.inflate(R.layout.homemplebrowview, parent, false);

        holder = new ViewHolder();
        holder.text1 = (TextView) rowView.findViewById(R.id.name);
        holder.text2 = (TextView) rowView.findViewById(R.id.mrn);
        holder.text3 = (TextView) rowView.findViewById(R.id.date);
        holder.text4 = (TextView) rowView.findViewById(R.id.age);
        holder.text5 = (TextView) rowView.findViewById(R.id.gender);
        holder.text6 = (TextView) rowView.findViewById(R.id.wardno);
        holder.text7 = (TextView) rowView.findViewById(R.id.roomno);
        holder.text8 = (TextView) rowView.findViewById(R.id.bedno);
        holder.btnList = (Button) rowView.findViewById(R.id.listbutton);
        /*Button editButton = (Button) rowView.findViewById(R.id.listbutton) ;
        editButton.setTag(position);
        editButton.setClickable(true);
        editButton.setOnClickListener(EfficientAdapter.this);
        rowView.setClickable(true);*/


        rowView.setTag(holder);
    } else {
        holder = (ViewHolder) rowView.getTag();
    }

    holder.text1.setText(Util.formatN2H(patientListArray.get(position)
            .getName()));
    holder.text2.setText(patientListArray.get(position).getMrnNumber());
    holder.text3.setText(Util.formatN2H(patientListArray.get(position)
            .getRoom()));
    holder.text4.setText(Util.formatN2H(patientListArray.get(position)
            .getAge()));
    holder.text5.setText(Util.formatN2H(patientListArray.get(position)
            .getGender()));
    holder.text6.setText(Util.formatN2H(patientListArray.get(position)
            .getWard()));
    holder.text7.setText(Util.formatN2H(patientListArray.get(position)
            .getRoom()));
    holder.text8.setText(Util.formatN2H(patientListArray.get(position)
            .getBed()));        
    holder.btnList.setOnClickListener(new OnClickListener() {

        public void onClick(View v) {
            Toast.makeText(context, "STAT", Toast.LENGTH_SHORT).show();     
            Intent next = new Intent(context, SeviceDetails.class);
            Log.i("patient", " next "+ position + " onclickposition " + patientListArray.get(position).getMrnNumber());
            patient = getPatientDetailsByMrn(patientListArray, position);
            Log.i("DDDD ", patient.getMrnNumber());             
            next.putExtra("patient", patient);
            next.putExtra("position", position);
            System.out.println("patient"+ patient);
            context.startActivity(next);
        }
    });
return rowView;
}       

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() {
    super.notifyDataSetChanged();
}

public int getPositionForSection(int section) {
    sortMyData();

    Log.i("getPositionForSection", "section" + section);
    //If there is no item for current section, previous section will be
    //selected
    for (int i = section; i >= 0; i--) {
        for (int j = 0; j < getCount(); j++) {
            if (i == 0) {

                Log.i("getPositionForSection- i", "section" + i);
                //For numeric section
                for (int k = 0; k <= 9; k++) {

                    if (StringMatcher.match(
                            String.valueOf(patientListArray.get(j)
                                    .getName().charAt(0)),
                            String.valueOf(k)))
                        Log.i("getPositionForSection- j", "section" + j);

                        return j;
                }
            } else {
                if (StringMatcher.match(
                        String.valueOf(patientListArray.get(j).getName()
                                .charAt(0)),
                        String.valueOf(mSections.charAt(i))))
                    return j;
            }
        }
    }
    return 0;
}

public int getSectionForPosition(int position) {
    return 0;
}

public Object[] getSections() {
    String[] sections = new String[mSections.length()];
    for (int i = 0; i < mSections.length(); i++)
        sections[i] = String.valueOf(mSections.charAt(i));
    return sections;
}

/**
 * sorting the patientListArray data
 */
public void sortMyData() {
    //sorting the patientListArray data
    Collections.sort(patientListArray, new Comparator<Object>() {
        @Override
        public int compare(Object k1, Object k2) {
            Patient p1 = (Patient) k1;
            Patient p2 = (Patient) k2;
            return p1.getName().compareToIgnoreCase(p2.getName());
        }

    });
}


     }

.xml -

  <Button
        android:id="@+id/listbutton"
        style="?android:attr/buttonStyleSmall"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:layout_alignTop="@+id/name"
        android:layout_marginRight="43dp"   
        android:focusable="false"      
        android:text="Episode"
        android:textColor="#666666" />

Standard-listview

       <ListView 

         android:id="@+id/homelistView"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:dividerHeight="0dip" />