¿Cómo manejar el evento de clic de niño en Expandablelistview en Android?
Estoy creando una vista de lista expandible en Android. He agregado tres vistas de texto en diseño relativo y dos botones en diseño lineal horizontal significa que estos dos botones se agregan en una fila, entonces, ¿cómo puedo activar el evento de clic en esos dos botones?
Y quiero llamar a otra actividad al hacer clic en el botón en la vista de lista expandible. Pero no encontré ninguna idea de cómo hacer clic en niño enExpandableListView.
Aquí está mi archivo XML.
<?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>
Archivo xml 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>
aquí está miExpandableListAdapter clase -
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;
}
}
Aquí está mi código de actividad:
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);
}
}