[英]Android onChildClickListener in expandable ListView
我有一個expandableListView
,其中有三個組項目,每個組包含五個子項目。 我想在所有組的每個子項上以及要使用Intent顯示的每個不同頁面上提供onClick事件。
我執行的代碼結果如下。 onChildClickListener
對於第一個組子項正常工作。 但是,當我單擊其他兩個組的子項時,它再次顯示我為第一組子項提供的頁面。 我在下面發布我的代碼。 請有人建議我一些解決方案。
MoreActivity.java
package info.demo.goa;
public class MoreActivity extends Activity {
private ExpandListAdapter ExpAdapter;
private ArrayList<Group> ExpListItems;
private ExpandableListView ExpandList;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.more_tab);
ExpandList = (ExpandableListView) findViewById(R.id.exp_list);
ExpListItems = SetStandardGroups();
ExpAdapter = new ExpandListAdapter(MoreActivity.this, ExpListItems);
ExpandList.setAdapter(ExpAdapter);
ExpandList.setOnChildClickListener(new OnChildClickListener() {
@Override
public boolean onChildClick(ExpandableListView parent, View v,
int groupPosition, int childPosition, long id)
{
if(childPosition==0)
{
Intent i=new Intent(getApplicationContext(), Basilica_ch.class);
startActivity(i);
}
if(childPosition==1)
{
Intent i=new Intent(getApplicationContext(), StFrancis_ch.class);
startActivity(i);
}
if(childPosition==2)
{
Intent i=new Intent(getApplicationContext(), Lady_ch.class);
startActivity(i);
}
if(childPosition==3)
{
Intent i=new Intent(getApplicationContext(), StThomas_ch.class);
startActivity(i);
}
if(childPosition==4)
{
Intent i=new Intent(getApplicationContext(), SeCathedral_ch.class);
startActivity(i);
}
if(childPosition==5)
{
Intent i=new Intent(getApplicationContext(), Aguada_f.class);
startActivity(i);
}
if(childPosition==6)
{
Intent i=new Intent(getApplicationContext(), Chapora_f.class);
startActivity(i);
}
if(childPosition==7)
{
Intent i=new Intent(getApplicationContext(), CaboDerama_f.class);
startActivity(i);
}
if(childPosition==8)
{
Intent i=new Intent(getApplicationContext(), Rachol_f.class);
startActivity(i);
}
if(childPosition==9)
{
Intent i=new Intent(getApplicationContext(), Terekhol_f.class);
startActivity(i);
}
if(childPosition==10)
{
Intent i=new Intent(getApplicationContext(), Archa_m.class);
startActivity(i);
}
if(childPosition==11)
{
Intent i=new Intent(getApplicationContext(), Calizz_m.class);
startActivity(i);
}
if(childPosition==12)
{
Intent i=new Intent(getApplicationContext(), GoaState_m.class);
startActivity(i);
}
if(childPosition==13)
{
Intent i=new Intent(getApplicationContext(), Naval_m.class);
startActivity(i);
}
if(childPosition==14)
{
Intent i=new Intent(getApplicationContext(), Palacio_m.class);
startActivity(i);
}
return false;
}
});
}
public ArrayList<Group> SetStandardGroups() {
String group_names[] = { "Churches", "Forts", "Museums" };
String country_names[] = { "Basilica of Bom Jesus", "Church and Convent of St Francis of Assisi",
"Church of Our Lady of Immaculate Conception", "Church of St. Thomas", "Se Cathedral",
"The Aguada Fort", "The Chapora Fort", "The Cabo de Rama Fort", "Rachol Fort", "Terekhol Fort",
"Archaeological Museum", "Calizz Museum", "Goa State Museum", "Naval Aviation Museum ", "Palacio Do deao"
};
int Images[] = {
R.drawable.basilicaofbomjesus, R.drawable.stfrancisofassisi, R.drawable.churchofourladyofimmaculateconception,
R.drawable.stthomas, R.drawable.secathedral, R.drawable.fortaguda,
R.drawable.chaporafort, R.drawable.cabodarama, R.drawable.racholfort,
R.drawable.terekholfort, R.drawable.archaeologicalmuseum, R.drawable.calizzmuseum,
R.drawable.goastatemuseum, R.drawable.navalaviationmuseum, R.drawable.palaciododeao,
};
ArrayList<Group> list = new ArrayList<Group>();
ArrayList<Child> ch_list;
int size = 5;
int j = 0;
for (String group_name : group_names) {
Group gru = new Group();
gru.setName(group_name);
ch_list = new ArrayList<Child>();
for (; j < size; j++) {
Child ch = new Child();
ch.setName(country_names[j]);
ch.setImage(Images[j]);
ch_list.add(ch);
}
gru.setItems(ch_list);
list.add(gru);
size = size + 5;
}
return list;
}
class ExpandListAdapter extends BaseExpandableListAdapter {
private Context context;
private ArrayList<Group> groups;
public ExpandListAdapter(Context context, ArrayList<Group> groups) {
this.context = context;
this.groups = groups;
}
@Override
public Object getChild(int groupPosition, int childPosition) {
ArrayList<Child> chList = groups.get(groupPosition).getItems();
return chList.get(childPosition);
}
@Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
@Override
public View getChildView(int groupPosition, int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
Child child = (Child) getChild(groupPosition, childPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) context
.getSystemService(context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.child_item, null);
}
ImageView iv = (ImageView) convertView.findViewById(R.id.imgItemImage);
TextView tv = (TextView) convertView.findViewById(R.id.txtItemName);
tv.setText(child.getName().toString());
iv.setImageResource(child.getImage());
return convertView;
}
@Override
public int getChildrenCount(int groupPosition) {
ArrayList<Child> chList = groups.get(groupPosition).getItems();
return chList.size();
}
@Override
public Object getGroup(int groupPosition) {
return groups.get(groupPosition);
}
@Override
public int getGroupCount() {
return groups.size();
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
Group group = (Group) getGroup(groupPosition);
if (convertView == null) {
LayoutInflater inf = (LayoutInflater) context
.getSystemService(context.LAYOUT_INFLATER_SERVICE);
convertView = inf.inflate(R.layout.group_item, null);
}
TextView tv = (TextView) convertView.findViewById(R.id.group_name);
tv.setText(group.getName());
return convertView;
}
@Override
public boolean hasStableIds() {
return true;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition)
{
return true;
}
}
}
Child.java
package info.demo.goa;
public class Child {
private String Name;
private int Image;
public String getName() {
return Name;
}
public void setName(String Name) {
this.Name = Name;
}
public int getImage() {
return Image;
}
public void setImage(int Image) {
this.Image = Image;
}
}
Group.java
package info.demo.goa;
import java.util.ArrayList;
public class Group {
private String Name;
private ArrayList<Child> Items;
public String getName() {
return Name;
}
public void setName(String name) {
this.Name = name;
}
public ArrayList<Child> getItems() {
return Items;
}
public void setItems(ArrayList<Child> Items) {
this.Items = Items;
}
}
XML代碼
more_tab.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<ExpandableListView
android:id="@+id/exp_list"
android:layout_width="match_parent"
android:layout_height="fill_parent">
</ExpandableListView>
</RelativeLayout>
child_item.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center">
<ImageView
android:id="@+id/imgItemImage"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:adjustViewBounds="true"
android:src="@drawable/ic_launcher" />
<LinearLayout
android:layout_width="0dp"
android:layout_height="40dp"
android:layout_marginLeft="5dp"
android:layout_weight="0.92" >
<TextView
android:id="@+id/txtItemName"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="@android:color/black"/>
</LinearLayout>
<ImageView
android:id="@+id/imgItemArrow"
android:layout_width="15dp"
android:layout_height="15dp"
android:src="@drawable/arrow_icon"
android:layout_marginRight="5dp"/>
</LinearLayout>
group_item.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:padding="10dp" >
<TextView
android:id="@+id/group_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingLeft="25dp"
android:textStyle="bold"/>
</LinearLayout>
If Group Position is 1 then
1 - 0 , 1, 2, 3, 4
2 - 0 , 1, 2, 3, 4 but not 5, 6, 7, 8, 9
3 - 0 , 1, 2, 3, 4 but not 10, 11, 12, 13, 14
@Override
public boolean onChildClick(ExpandableListView parent, View v, int groupPosition, int childPosition, long id) {
if (groupPosition == 0) {
if (childPosition == 0) {
Intent i = new Intent(getApplicationContext(), Basilica_ch.class);
startActivity(i);
}
if (childPosition == 1) {
Intent i = new Intent(getApplicationContext(), StFrancis_ch.class);
startActivity(i);
}
if (childPosition == 2) {
Intent i = new Intent(getApplicationContext(), Lady_ch.class);
startActivity(i);
}
if (childPosition == 3) {
Intent i = new Intent(getApplicationContext(), StThomas_ch.class);
startActivity(i);
}
if (childPosition == 4) {
Intent i = new Intent(getApplicationContext(), SeCathedral_ch.class);
startActivity(i);
}
}
if (groupPosition == 1) {
if (childPosition == 0) {
Intent i = new Intent(getApplicationContext(), Aguada_f.class);
startActivity(i);
}
if (childPosition == 1) {
Intent i = new Intent(getApplicationContext(), Chapora_f.class);
startActivity(i);
}
if (childPosition == 2) {
Intent i = new Intent(getApplicationContext(), CaboDerama_f.class);
startActivity(i);
}
if (childPosition == 3) {
Intent i = new Intent(getApplicationContext(), Rachol_f.class);
startActivity(i);
}
if (childPosition == 4) {
Intent i = new Intent(getApplicationContext(), Terekhol_f.class);
startActivity(i);
}
}
if (groupPosition == 2) {
if (childPosition == 0) {
Intent i = new Intent(getApplicationContext(), Archa_m.class);
startActivity(i);
}
if (childPosition == 1) {
Intent i = new Intent(getApplicationContext(), Calizz_m.class);
startActivity(i);
}
if (childPosition == 2) {
Intent i = new Intent(getApplicationContext(), GoaState_m.class);
startActivity(i);
}
if (childPosition == 3) {
Intent i = new Intent(getApplicationContext(), Naval_m.class);
startActivity(i);
}
if (childPosition == 4) {
Intent i = new Intent(getApplicationContext(), Palacio_m.class);
startActivity(i);
}
}
return false;
}
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.