Я создаю расширяемый вид списка в Android. Я добавил три вида текста в относительном расположении и две кнопки в горизонтальном линейном расположении, что означает, что эти две кнопки добавляются в один ряд, так как я могу запустить событие щелчка на этих двух кнопках?

И я хочу вызвать другое действие по нажатию кнопки в расширяемом виде списка. Но я не нашел никакой идеи, как нажать на ребенка вExpandableListView.

Вот мой XML-файл.

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="@android:color/white"
    android:padding="2dp" >

    <TextView
        android:id="@+id/TextView_Projectdetails"
        android:layout_width="match_parent"
        android:layout_height="25dp"
        android:background="@drawable/button_shape"
        android:paddingLeft="10sp"
        android:textColor="@android:color/black" />

    <TextView
        android:id="@+id/textOne"
        android:layout_width="match_parent"
        android:layout_height="25dp"
        android:layout_below="@+id/TextView_Projectdetails"
        android:layout_marginTop="2dp"
        android:background="@drawable/button_shape"
        android:paddingLeft="10sp"
        android:textColor="@android:color/black" >
    </TextView>

    <TextView
        android:id="@+id/textTwo"
        android:layout_width="match_parent"
        android:layout_height="25dp"
        android:layout_below="@+id/textOne"
        android:layout_marginTop="2dp"
        android:background="@drawable/button_shape"
        android:paddingLeft="10sp"
        android:textColor="@android:color/black" >
    </TextView>

    <LinearLayout
        android:id="@+id/linearlAYOUT"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/textTwo"
        android:layout_marginTop="5dp"
        android:orientation="horizontal" >

        <Button
            android:id="@+id/button_EditedTask"
            android:layout_width="0dp"
            android:layout_height="27dp"
            android:layout_gravity="center"
            android:layout_weight="1"
            android:background="@drawable/button_shape_two"
            android:gravity="center"
            android:paddingBottom="3sp"
            android:paddingTop="3sp"
            android:text="ASSIGN TASK"
            android:focusable="false"      
            android:textColor="@android:color/white"
            android:textSize="12sp"
            android:textStyle="normal" />

        <Button
            android:id="@+id/buttonViewTask"
            android:layout_width="0dp"
            android:layout_height="27dp"
            android:layout_gravity="center_vertical|center_horizontal"
            android:layout_marginLeft="3dp"
            android:layout_weight="1"
            android:background="@drawable/button_shape_one"
            android:gravity="center"
            android:paddingBottom="3sp"
            android:paddingTop="3sp"
            android:text="VIEW TASK"
            android:focusable="false"      
            android:textColor="@android:color/white"
            android:textSize="12sp"
            android:textStyle="normal" />
    </LinearLayout>

</RelativeLayout>

XML-файл List_Group -

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:padding="8dp" 
    android:background="#000000">


    <TextView
        android:id="@+id/lblListHeader"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:paddingLeft="?android:attr/expandableListPreferredItemPaddingLeft"
        android:textSize="17dp"
        android:textColor="#f9f93d" />

</LinearLayout>

вот мойExpandableListAdapter учебный класс -

public class ExpandableListAdapter extends BaseExpandableListAdapter {

    private Context _context;
    private List<String> _listDataHeader; // header titles
    // child data in format of header title, child title
    private HashMap<String, List<String>> _listDataChild;
    Context context;

    public ExpandableListAdapter(Context context, List<String> listDataHeader,
            HashMap<String, List<String>> listChildData) {
        this._context = context;
        this._listDataHeader = listDataHeader;
        this._listDataChild = listChildData;
    }

    public ExpandableListAdapter
    (My_Project my_Project, List createGroupList,
            int listGroup, String[] strings, int[] is, List createChildList,
            int childItem, String[] strings2, int[] is2)
    {
        // TODO Auto-generated constructor stub
    }

    @Override
    public Object getChild(int groupPosition, int childPosition) 
    {
        //this.get(groupPosition).getChildren().get(childPosition);
        String strchildPosition = this._listDataChild.get(this._listDataHeader.get(groupPosition)).get(childPosition);
        System.out.println("Child Position  =" + strchildPosition);
        return this._listDataChild.get(this._listDataHeader.get(groupPosition))
                .get(childPosition);
    }

    @Override
    public long getChildId(int groupPosition, int childPosition) {
        return childPosition;
    }

    @Override
    public View getChildView(int groupPosition, final int childPosition,
            boolean isLastChild, View convertView, ViewGroup parent) {

        final String childText = (String) getChild(groupPosition, childPosition);

        if (convertView == null) {
            LayoutInflater infalInflater = (LayoutInflater) this._context
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            convertView = infalInflater.inflate(R.layout.child_item, null);
        }

        TextView txtListChild = (TextView) convertView.findViewById(R.id.TextView_Projectdetails);
        TextView txtOneListChild = (TextView)convertView.findViewById(R.id.textOne);
        TextView txtTwoListChild = (TextView)convertView.findViewById(R.id.textTwo);



        txtListChild.setText(childText);
        txtOneListChild.setText(childText);
        txtTwoListChild.setText(childText);




        Button btnAssgnTask = (Button)convertView.findViewById(R.id.button_EditedTask);
        btnAssgnTask.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                //Intent i=new Intent(context,Assign_Task.class);
                //StartElementListener()

            }
        });


        Button btnViewTask = (Button)convertView.findViewById(R.id.buttonViewTask);

        return convertView;
    }

    @Override
    public int getChildrenCount(int groupPosition) {
        return this._listDataChild.get(this._listDataHeader.get(groupPosition))
                .size();
    }

    @Override
    public Object getGroup(int groupPosition) {
        return this._listDataHeader.get(groupPosition);
    }

    @Override
    public int getGroupCount() {
        return this._listDataHeader.size();
    }

    @Override
    public long getGroupId(int groupPosition) {
        return groupPosition;
    }

    @Override
    public View getGroupView(int groupPosition, boolean isExpanded,
            View convertView, ViewGroup parent) {
        String headerTitle = (String) getGroup(groupPosition);
        if (convertView == null) {
            LayoutInflater infalInflater = (LayoutInflater) this._context
                    .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            convertView = infalInflater.inflate(R.layout.list_group, null);
        }

        TextView lblListHeader = (TextView) convertView
                .findViewById(R.id.lblListHeader);
        lblListHeader.setTypeface(null, Typeface.BOLD);
        lblListHeader.setText(headerTitle);

        return convertView;
    }

    @Override
    public boolean hasStableIds() {
        return false;
    }

    @Override
    public boolean isChildSelectable(int groupPosition, int childPosition) {
        return true;
    }

}

Вот мой код активности -

public class My_Project extends ExpandableListActivity 
{


    expListView = (ExpandableListView) findViewById(android.R.id.list);

        expListView.setOnGroupClickListener(new OnGroupClickListener()
        {
            @Override
                public boolean onGroupClick(ExpandableListView parent, View v,
                        int groupPosition, long id) 
                {
                    return false;
                }
            });


            expListView.setOnGroupExpandListener(new OnGroupExpandListener() {

                @Override
                public void onGroupExpand(int groupPosition) {
                    Toast.makeText(getApplicationContext(),
                            dtrProjectNAmeSize.length + " Expanded",
                            Toast.LENGTH_SHORT).show();
                }
            });


            expListView.setOnGroupCollapseListener(new OnGroupCollapseListener() {

                @Override
                public void onGroupCollapse(int groupPosition) {
                    Toast.makeText(getApplicationContext(),
                            dtrProjectNAmeSize.length + " Collapsed",
                            Toast.LENGTH_SHORT).show();
                }
            });


            expListView.setOnChildClickListener(new OnChildClickListener() {

                @Override
                public boolean onChildClick(ExpandableListView parent, View v,
                        int groupPosition, int childPosition, long id) {
                    // TODO Auto-generated method stub

                     int cp = (int) mAdapter.getChildId(groupPosition, childPosition);
                     if(cp == 3)
                     {
                         switch (cp)
                         {
                                case 3:



                                break;

                         }
                     }


                    return false;

                }
            });



            mAdapter = new SimpleExpandableListAdapter(
                        this,
                        groupData,
                        R.layout.list_group,
                        new String[] { Project_Name },
                        new int[] {R.id.lblListHeader },
                        childData,
                        R.layout.child_item,
                        new String[] { Project_Date_Created , Project_End_Date , Project_Is_Active},
                        new int[] { R.id.TextView_Projectdetails , R.id.textOne , R.id.textTwo }
                        );

                expListView.setAdapter(mAdapter);  

    }



    }