Android 自定义listview,内置listview的自定义可扩展listview(项目列表为listview)
我想创建一个索引为“a”、“B”、“C”等的好友列表(如listview或expandablelistview) 对于每个项目视图,我想为每个角色添加更多的朋友,例如:“A”是:abert,abum 对于每个朋友,我想添加更多的电话号码(也像listview) 我已附上这张照片 我很难做到这一点 我希望专家能帮助我?或者给我解决方案 希望尽快收到您的反馈 [插图:Android 自定义listview,内置listview的自定义可扩展listview(项目列表为listview),android,listview,custom-controls,expandablelistview,android-custom-view,Android,Listview,Custom Controls,Expandablelistview,Android Custom View,我想创建一个索引为“a”、“B”、“C”等的好友列表(如listview或expandablelistview) 对于每个项目视图,我想为每个角色添加更多的朋友,例如:“A”是:abert,abum 对于每个朋友,我想添加更多的电话号码(也像listview) 我已附上这张照片 我很难做到这一点 我希望专家能帮助我?或者给我解决方案 希望尽快收到您的反馈 [插图: 非常感谢您需要实现类似于以下内容的功能 类(以片段形式): 适配器类: public class ExpandableListAda
非常感谢您需要实现类似于以下内容的功能 类(以片段形式): 适配器类:
public class ExpandableListAdapter extends BaseExpandableListAdapter {
private Activity _context;
private List<String> _listDataHeader; // header titles
private HashMap<String, List<String>> _listDataChild;// child data in format of header title, child title
public ExpandableListAdapter(Activity context, List<String> listDataHeader,
HashMap<String, List<String>> listChildData) {
this._context = context;
this._listDataHeader = listDataHeader;
this._listDataChild = listChildData;
}
@Override
public Object getChild(int groupPosition, int childPosititon) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition))
.get(childPosititon);
}
@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.list_item, null);
}
TextView txtListChild = (TextView) convertView.findViewById(R.id.lblListItem);
txtListChild.setText(childText);
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;
}
}
公共类ExpandableListAdapter扩展了BaseExpandableListAdapter{
私人活动——语境;
私有列表_listDataHeader;//头标题
私有HashMap _listDataChild;//头标题、子标题格式的子数据
公共ExpandableListAdapter(活动上下文、列表listDataHeader、,
HashMap listChildData){
这._context=context;
这。_listDataHeader=listDataHeader;
这。_listDataChild=listChildData;
}
@凌驾
公共对象getChild(int-groupPosition、int-ChildPosition){
返回此。_listDataChild.get(此。_listDataHeader.get(groupPosition))
.get(childpositionon);
}
@凌驾
公共长getChildId(int-groupPosition,int-childPosition){
返回子位置;
}
@凌驾
公共视图getChildView(int groupPosition,final int childPosition,
布尔值isLastChild、视图转换视图、视图组父级){
最终字符串childText=(字符串)getChild(groupPosition,childPosition);
if(convertView==null){
LayoutInflater INFLATER=(LayoutInflater)this.\u context.getSystemService(context.LAYOUT\u INFLATER\u SERVICE);
convertView=infalInflater.充气(R.layout.list_项,空);
}
TextView txtListChild=(TextView)convertView.findViewById(R.id.lblListItem);
setText(childText);
返回视图;
}
@凌驾
公共整数getChildrenCount(整数组位置){
返回此。_listDataChild.get(此。_listDataHeader.get(groupPosition))
.size();
}
@凌驾
公共对象getGroup(int-groupPosition){
返回此。\u listDataHeader.get(groupPosition);
}
@凌驾
public int getGroupCount(){
返回此值。_listDataHeader.size();
}
@凌驾
公共长getGroupId(int-groupPosition){
返回组位置;
}
@凌驾
公共视图getGroupView(int-groupPosition,布尔值isExpanded,
视图(视图、视图组父级){
字符串头文件=(字符串)getGroup(groupPosition);
if(convertView==null){
LayoutInflater INFLATER=(LayoutInflater)this.\u context.getSystemService(context.LAYOUT\u INFLATER\u SERVICE);
convertView=infalInflater.充气(R.layout.list_组,空);
}
TextView lblListHeader=(TextView)convertView.findViewById(R.id.lblListHeader);
lblListHeader.setTypeface(null,Typeface.BOLD);
lblListHeader.setText(标题);
返回视图;
}
@凌驾
公共布尔表ID(){
返回false;
}
@凌驾
公共布尔值isChildSelectable(int-groupPosition,int-childPosition){
返回true;
}
}
public class ExpandableListAdapter extends BaseExpandableListAdapter {
private Activity _context;
private List<String> _listDataHeader; // header titles
private HashMap<String, List<String>> _listDataChild;// child data in format of header title, child title
public ExpandableListAdapter(Activity context, List<String> listDataHeader,
HashMap<String, List<String>> listChildData) {
this._context = context;
this._listDataHeader = listDataHeader;
this._listDataChild = listChildData;
}
@Override
public Object getChild(int groupPosition, int childPosititon) {
return this._listDataChild.get(this._listDataHeader.get(groupPosition))
.get(childPosititon);
}
@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.list_item, null);
}
TextView txtListChild = (TextView) convertView.findViewById(R.id.lblListItem);
txtListChild.setText(childText);
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;
}
}