Android 可扩展列表视图搜索过滤器
我在我的应用程序中使用可扩展的ListView。我想过滤数据。因此,当我键入T时,我想在列表视图中显示过滤后的结果。例如:Top250、Top100、Thor vs。。我尝试了所有方法,但仍然不起作用。此外,我使用带有actionbar的searchview 我有一个ExpandableListAdapter类,如下所示:Android 可扩展列表视图搜索过滤器,android,listview,expandablelistview,searchview,Android,Listview,Expandablelistview,Searchview,我在我的应用程序中使用可扩展的ListView。我想过滤数据。因此,当我键入T时,我想在列表视图中显示过滤后的结果。例如:Top250、Top100、Thor vs。。我尝试了所有方法,但仍然不起作用。此外,我使用带有actionbar的searchview 我有一个ExpandableListAdapter类,如下所示: public class ExpandableListAdapter extends BaseExpandableListAdapter { private Con
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;
public ExpandableListAdapter(Context 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.exp_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{
私人语境(private Context)(私人语境);;
私有列表_listDataHeader;//头标题
//标题标题、子标题格式的子数据
私有HashMap_listDataChild;
公共ExpandableListAdapter(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 infalInflater=(LayoutInflater)this.\u上下文
.getSystemService(上下文布局\充气机\服务);
convertView=infalInflater.充气(R.layout.exp\u列表项,空);
}
TextView txtListChild=(TextView)convertView
.findviewbyd(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 infalInflater=(LayoutInflater)this.\u上下文
.getSystemService(上下文布局\充气机\服务);
convertView=infalInflater.充气(R.layout.list_组,空);
}
TextView lblistheader=(TextView)convertView
.findviewbyd(R.id.lblistheader);
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;
}
}
**
我正在MainActivity中加载此方法:
List<String> listDataHeader; HashMap<String, List<String>> listDataChild;
private void prepareListData() {
// Adding child data
listDataHeader.add("Top 250");
listDataHeader.add("Now Showing");
listDataHeader.add("Coming Soon..");
listDataHeader.add("Top100");
listDataHeader.add("Thor");
// Adding child data
List<String> top250 = new ArrayList<String>();
top250.add("The Shawshank Redemption");
top250.add("The Godfather");
top250.add("The Godfather: Part II");
top250.add("Pulp Fiction");
top250.add("The Good, the Bad and the Ugly");
top250.add("The Dark Knight");
top250.add("12 Angry Men");
List<String> nowShowing = new ArrayList<String>();
nowShowing.add("The Conjuring");
nowShowing.add("Despicable Me 2");
nowShowing.add("Turbo");
nowShowing.add("Grown Ups 2");
nowShowing.add("Red 2");
nowShowing.add("The Wolverine");
List<String> comingSoon = new ArrayList<String>();
comingSoon.add("2 Guns");
comingSoon.add("The Smurfs 2");
comingSoon.add("The Spectacular Now");
comingSoon.add("The Canyons");
comingSoon.add("Europa Report");
listDataChild.put(listDataHeader.get(0), top250); // Header, Child data
listDataChild.put(listDataHeader.get(1), nowShowing);
listDataChild.put(listDataHeader.get(2), comingSoon);
列表listDataHeader;HashMapListDataChild;
私有void prepareListData(){
//添加子数据
添加(“前250名”);
添加(“现在显示”);
添加(“即将推出…”);
添加(“Top100”);
添加(“Thor”);
//添加子数据
List top250=新的ArrayList();
top250.添加(“肖申克的救赎”);
添加(“教父”);
top250.添加(“教父:第二部分”);
top250.添加(“低俗小说”);
添加(“好、坏、丑”);
添加(“黑暗骑士”);
添加(“12个愤怒的男人”);
List nowShowing=新建ArrayList();
现在显示。添加(“变戏法”);
添加(“卑鄙的我2”);
现在显示。添加(“Turbo”);
现在显示。添加(“成年人2”);
现在显示。添加(“红色2”);
现在显示。添加(“狼獾”);
List comingSoon=新建ArrayList();
很快就来。添加(“2支枪”);
很快就来。添加(“蓝精灵2”);
即将到来。添加(“现在的壮观”);
即将到来。添加(“峡谷”);
即将出版。添加(“欧罗巴报告”);
listDataChild.put(listDataHeader.get(0),top250);//头,子数据
listDataChild.put(listDataHeader.get(1),现在显示);
listDataChild.put(listDataHeader.get(2),即将出现);
}你试过这个吗?是的,我看到了这个例子。但是我无法适应我的应用程序。您以前是否在CustomBaseExpandableListAdapter或任何BaseAdapter中实现过
Filterable
?不,我没有实现Filterable yetok。以下是我仅使用实现它的方法,以下是我将在我的应用程序中使用的方法