Android:可扩展列表视图实现
我正在尝试实现一个可扩展的列表视图适配器 我有我在适配器中表示的数据Android:可扩展列表视图实现,android,expandablelistview,Android,Expandablelistview,我正在尝试实现一个可扩展的列表视图适配器 我有我在适配器中表示的数据 private Map<Group, List<Contact>> groupedContactList = new HashMap<Group, List<Contact>>(); 以下代码适用于我: public class ExpandableListAdapter extends BaseExpandableListAdapter { private Context
private Map<Group, List<Contact>> groupedContactList = new HashMap<Group, List<Contact>>();
以下代码适用于我:
public class ExpandableListAdapter extends BaseExpandableListAdapter {
private Context mContext;
private ExpandableListView mExpandableListView;
private List<GroupEntity> mGroupCollection;
private int[] groupStatus;
public ExpandableListAdapter(Context pContext,
ExpandableListView pExpandableListView,
List<GroupEntity> pGroupCollection) {
mContext = pContext;
mGroupCollection = pGroupCollection;
mExpandableListView = pExpandableListView;
groupStatus = new int[mGroupCollection.size()];
setListEvent();
}
private void setListEvent() {
mExpandableListView
.setOnGroupExpandListener(new OnGroupExpandListener() {
@Override
public void onGroupExpand(int arg0) {
// TODO Auto-generated method stub
groupStatus[arg0] = 1;
mExpandableListView.setSelectedGroup(arg0);
}
});
mExpandableListView
.setOnGroupCollapseListener(new OnGroupCollapseListener() {
@Override
public void onGroupCollapse(int arg0) {
// TODO Auto-generated method stub
groupStatus[arg0] = 0;
}
});
}
@Override
public String getChild(int arg0, int arg1) {
// TODO Auto-generated method stub
return mGroupCollection.get(arg0).GroupItemCollection.get(arg1).Name;
}
@Override
public long getChildId(int arg0, int arg1) {
// TODO Auto-generated method stub
return 0;
}
@Override
public View getChildView(int arg0, int arg1, boolean arg2, View arg3,
ViewGroup arg4) {
// TODO Auto-generated method stub
ChildHolder childHolder;
if (arg3 == null) {
arg3 = LayoutInflater.from(mContext).inflate(
R.layout.list_group_item, null);
childHolder = new ChildHolder();
childHolder.title = (TextView) arg3.findViewById(R.id.item_title);
arg3.setTag(childHolder);
} else {
childHolder = (ChildHolder) arg3.getTag();
}
childHolder.title
.setText(mGroupCollection.get(arg0).GroupItemCollection
.get(arg1).Name);
return arg3;
}
@Override
public int getChildrenCount(int arg0) {
// TODO Auto-generated method stub
return mGroupCollection.get(arg0).GroupItemCollection.size();
}
@Override
public Object getGroup(int arg0) {
return mGroupCollection.get(arg0);
}
@Override
public int getGroupCount() {
return mGroupCollection.size();
}
@Override
public long getGroupId(int arg0) {
return arg0;
}
@Override
public View getGroupView(int arg0, boolean arg1, View arg2, ViewGroup arg3) {
// TODO Auto-generated method stub
GroupHolder groupHolder;
if (arg2 == null) {
arg2 = LayoutInflater.from(mContext).inflate(R.layout.list_group,
null);
groupHolder = new GroupHolder();
groupHolder.img = (ImageView) arg2.findViewById(R.id.tag_img);
groupHolder.img1 = (FrameLayout) arg2.findViewById(R.id.tag_img1);
groupHolder.title = (TextView) arg2.findViewById(R.id.group_title);
arg2.setTag(groupHolder);
} else {
groupHolder = (GroupHolder) arg2.getTag();
}
if (groupStatus[arg0] == 0) {
groupHolder.img.setImageResource(R.drawable.icn_max);
groupHolder.img1
.setBackgroundResource(R.drawable.content_bgparent1);
} else {
groupHolder.img.setImageResource(R.drawable.icn_min);
groupHolder.img1.setBackgroundResource(R.drawable.active_bg);
}
groupHolder.title.setText(mGroupCollection.get(arg0).Name);
return arg2;
}
class GroupHolder {
ImageView img;
FrameLayout img1;
TextView title;
}
class ChildHolder {
TextView title;
}
@Override
public boolean hasStableIds() {
// TODO Auto-generated method stub
return true;
}
@Override
public boolean isChildSelectable(int arg0, int arg1) {
// TODO Auto-generated method stub
return true;
}
公共类ExpandableListAdapter扩展了BaseExpandableListAdapter{
私有上下文;
私有可扩展列表视图mExpandableListView;
私人名单收集;
私有int[]组状态;
公共ExpandableListAdapter(上下文pContext,
ExpandableListView PEExpandableListView,
列表(集合){
mContext=pContext;
mGroupCollection=pGroupCollection;
mExpandableListView=pExpandableListView;
groupStatus=newint[mGroupCollection.size()];
setListEvent();
}
私有void setListEvent(){
mExpandableListView
.setOnGroupExpandListener(新OnGroupExpandListener(){
@凌驾
public void onGroupExpand(int arg0){
//TODO自动生成的方法存根
groupStatus[arg0]=1;
mExpandableListView.setSelectedGroup(arg0);
}
});
mExpandableListView
.setOnGroupCollapseListener(新OnGroupCollapseListener(){
@凌驾
公共无效组折叠(int arg0){
//TODO自动生成的方法存根
groupStatus[arg0]=0;
}
});
}
@凌驾
公共字符串getChild(int arg0,int arg1){
//TODO自动生成的方法存根
返回mGroupCollection.get(arg0).GroupItemCollection.get(arg1).Name;
}
@凌驾
公共长getChildId(int arg0,int arg1){
//TODO自动生成的方法存根
返回0;
}
@凌驾
公共视图getChildView(int arg0、int arg1、布尔值arg2、视图arg3、,
视图组(arg4){
//TODO自动生成的方法存根
儿童持有人儿童持有人;
如果(arg3==null){
arg3=从(mContext)充气(
R.layout.list\u group\u item,空);
childHolder=新的childHolder();
childHolder.title=(TextView)arg3.findViewById(R.id.item_title);
arg3.设置标签(儿童持有人);
}否则{
childHolder=(childHolder)arg3.getTag();
}
子女所有权
.setText(mGroupCollection.get(arg0).GroupItemCollection
.get(arg1.Name);
返回arg3;
}
@凌驾
公共整数getChildrenCount(整数arg0){
//TODO自动生成的方法存根
返回mGroupCollection.get(arg0.GroupItemCollection.size();
}
@凌驾
公共对象getGroup(int arg0){
返回mGroupCollection.get(arg0);
}
@凌驾
public int getGroupCount(){
返回mGroupCollection.size();
}
@凌驾
公共长getGroupId(int arg0){
返回arg0;
}
@凌驾
公共视图getGroupView(整数arg0、布尔值arg1、视图arg2、视图组arg3){
//TODO自动生成的方法存根
股东;股东;
如果(arg2==null){
arg2=LayoutFlater.from(mContext)。充气(R.layout.list\u组,
无效);
groupHolder=新的groupHolder();
groupHolder.img=(ImageView)arg2.findViewById(R.id.tag\u img);
groupHolder.img1=(FrameLayout)arg2.findViewById(R.id.tag\u img1);
groupHolder.title=(TextView)arg2.findViewById(R.id.group\u title);
arg2.setTag(groupHolder);
}否则{
groupHolder=(groupHolder)arg2.getTag();
}
if(组状态[arg0]==0){
groupHolder.img.setImageResource(R.drawable.icn_max);
groupHolder.img1
.setBackgroundResource(R.drawable.content_bgparent1);
}否则{
groupHolder.img.setImageResource(R.drawable.icn_min);
groupHolder.img1.setBackgroundResource(R.drawable.active_bg);
}
groupHolder.title.setText(mGroupCollection.get(arg0.Name));
返回arg2;
}
类股东{
图像视图img;
框架布局img1;
文本视图标题;
}
班级儿童持有者{
文本视图标题;
}
@凌驾
公共布尔表ID(){
//TODO自动生成的方法存根
返回true;
}
@凌驾
公共布尔值isChildSelectable(int arg0,int arg1){
//TODO自动生成的方法存根
返回true;
}
}
希望这有帮助。你能发布整个课程吗?@Harshid我发布了它。getChild不工作
public class ExpandableListAdapter extends BaseExpandableListAdapter {
private Context mContext;
private ExpandableListView mExpandableListView;
private List<GroupEntity> mGroupCollection;
private int[] groupStatus;
public ExpandableListAdapter(Context pContext,
ExpandableListView pExpandableListView,
List<GroupEntity> pGroupCollection) {
mContext = pContext;
mGroupCollection = pGroupCollection;
mExpandableListView = pExpandableListView;
groupStatus = new int[mGroupCollection.size()];
setListEvent();
}
private void setListEvent() {
mExpandableListView
.setOnGroupExpandListener(new OnGroupExpandListener() {
@Override
public void onGroupExpand(int arg0) {
// TODO Auto-generated method stub
groupStatus[arg0] = 1;
mExpandableListView.setSelectedGroup(arg0);
}
});
mExpandableListView
.setOnGroupCollapseListener(new OnGroupCollapseListener() {
@Override
public void onGroupCollapse(int arg0) {
// TODO Auto-generated method stub
groupStatus[arg0] = 0;
}
});
}
@Override
public String getChild(int arg0, int arg1) {
// TODO Auto-generated method stub
return mGroupCollection.get(arg0).GroupItemCollection.get(arg1).Name;
}
@Override
public long getChildId(int arg0, int arg1) {
// TODO Auto-generated method stub
return 0;
}
@Override
public View getChildView(int arg0, int arg1, boolean arg2, View arg3,
ViewGroup arg4) {
// TODO Auto-generated method stub
ChildHolder childHolder;
if (arg3 == null) {
arg3 = LayoutInflater.from(mContext).inflate(
R.layout.list_group_item, null);
childHolder = new ChildHolder();
childHolder.title = (TextView) arg3.findViewById(R.id.item_title);
arg3.setTag(childHolder);
} else {
childHolder = (ChildHolder) arg3.getTag();
}
childHolder.title
.setText(mGroupCollection.get(arg0).GroupItemCollection
.get(arg1).Name);
return arg3;
}
@Override
public int getChildrenCount(int arg0) {
// TODO Auto-generated method stub
return mGroupCollection.get(arg0).GroupItemCollection.size();
}
@Override
public Object getGroup(int arg0) {
return mGroupCollection.get(arg0);
}
@Override
public int getGroupCount() {
return mGroupCollection.size();
}
@Override
public long getGroupId(int arg0) {
return arg0;
}
@Override
public View getGroupView(int arg0, boolean arg1, View arg2, ViewGroup arg3) {
// TODO Auto-generated method stub
GroupHolder groupHolder;
if (arg2 == null) {
arg2 = LayoutInflater.from(mContext).inflate(R.layout.list_group,
null);
groupHolder = new GroupHolder();
groupHolder.img = (ImageView) arg2.findViewById(R.id.tag_img);
groupHolder.img1 = (FrameLayout) arg2.findViewById(R.id.tag_img1);
groupHolder.title = (TextView) arg2.findViewById(R.id.group_title);
arg2.setTag(groupHolder);
} else {
groupHolder = (GroupHolder) arg2.getTag();
}
if (groupStatus[arg0] == 0) {
groupHolder.img.setImageResource(R.drawable.icn_max);
groupHolder.img1
.setBackgroundResource(R.drawable.content_bgparent1);
} else {
groupHolder.img.setImageResource(R.drawable.icn_min);
groupHolder.img1.setBackgroundResource(R.drawable.active_bg);
}
groupHolder.title.setText(mGroupCollection.get(arg0).Name);
return arg2;
}
class GroupHolder {
ImageView img;
FrameLayout img1;
TextView title;
}
class ChildHolder {
TextView title;
}
@Override
public boolean hasStableIds() {
// TODO Auto-generated method stub
return true;
}
@Override
public boolean isChildSelectable(int arg0, int arg1) {
// TODO Auto-generated method stub
return true;
}