想知道如何在可扩展列表ANDROID中获取所选项目

概述我有一个可扩展的列表,其中包含组：大陆和子项：国家/地区.单击一个国家/地区时,我希望将国家/地区显示在另一个类的文本视图中. package com.zeus.eca;import android.app.ExpandableListActivity;import android.content.res.Resources;import android.graphics.Typeface 我有一个可扩展的列表,其中包含组：大陆和子项：国家/地区.单击一个国家/地区时,我希望将国家/地区显示在另一个类的文本视图中.

package com.zeus.eca;import androID.app.ExpandableListActivity;import androID.content.res.Resources;import androID.graphics.Typeface;import androID.os.Bundle;import androID.vIEw.Gravity;import androID.vIEw.VIEw;import androID.vIEw.VIEwGroup;import androID.Widget.AbsListVIEw;import androID.Widget.Baseexpandablelistadapter;import androID.Widget.expandablelistadapter;import androID.Widget.ExpandableListVIEw;import androID.Widget.TextVIEw;public class ListCountrIEs extends ExpandableListActivity implements                 ExpandableListVIEw.OnChildClickListener{expandablelistadapter mAdapter;@OverrIDepublic voID onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    mAdapter=new Myexpandablelistadapter();;    setlistadapter(mAdapter);    getExpandableListVIEw().setonChildClickListener(this); };@OverrIDepublic boolean onChildClick(ExpandableListVIEw parent,VIEw v,int groupposition,int childposition,long ID) {    // Todo auto-generated method stub    return false;        //return true;}    public class Myexpandablelistadapter extends Baseexpandablelistadapter {    // Sample data set.  children[i] contains the children (String[]) for groups[i].    private String[] groups ={"Africa","Asia","Europe","north America","South    America","Oceania","Antartica"};    Resources res = getResources();    private String[] strAfrica=res.getStringArray(R.array.arrayAfrica);    private String[] strAsia=res.getStringArray(R.array.arrayAsia);    private String[] strEurope=res.getStringArray(R.array.arrayEurope);    private String[] strnamerica=res.getStringArray(R.array.arraynamerica);    private String[] strSAmerica=res.getStringArray(R.array.arraySAmerica);    private String[] strOceania=res.getStringArray(R.array.arrayOceania);    private String[] strAntartica=res.getStringArray(R.array.arrayAntartica);    private String[][] children = {            strAfrica,strAsia,strEurope,strnamerica,strSAmerica,strOceania,strAntartica    };    public Object getChild(int groupposition,int childposition) {        return children[groupposition][childposition];    }    public long getChildID(int groupposition,int childposition) {        return childposition;    }    public int getChildrenCount(int groupposition) {        return children[groupposition].length;    }    public TextVIEw getGenericVIEw() {        // Layout parameters for the ExpandableListVIEw        AbsListVIEw.LayoutParams lp = new AbsListVIEw.LayoutParams(                VIEwGroup.LayoutParams.FILL_PARENT,55);        TextVIEw textVIEw = new TextVIEw(ListCountrIEs.this);        textVIEw.setLayoutParams(lp);        // Center the text vertically        textVIEw.setGravity(Gravity.CENTER_VERTICAL | Gravity.left);        textVIEw.setTypeface(Typeface.DEFAulT_BolD);        // Set the text starting position        textVIEw.setpadding(36,0);    //    textVIEw.setBackgroundResource(R.drawable.colorWhite);      //  textVIEw.setTextcolor(getResources().getcolor(R.color.colorBackground));        return textVIEw;    }    public VIEw getChildVIEw(int groupposition,boolean isLastChild,VIEw convertVIEw,VIEwGroup parent) {        TextVIEw textVIEw = getGenericVIEw();        textVIEw.setText(getChild(groupposition,childposition).toString());        return textVIEw;    }    public Object getGroup(int groupposition) {        return groups[groupposition];    }    public int getGroupCount() {        return groups.length;    }    public long getGroupID(int groupposition) {        return groupposition;    }    @OverrIDe    public VIEw getGroupVIEw(int groupposition,boolean isExpanded,VIEwGroup parent) {        TextVIEw textVIEw = getGenericVIEw();        textVIEw.setText(getGroup(groupposition).toString());        return textVIEw;    }    public boolean isChildSelectable(int groupposition,int childposition) {        return true;    }    public boolean hasStableIDs() {        return true;    }}

}

解决方法 这应该工作

@OverrIDepublic boolean onChildClick(ExpandableListVIEw parent,long ID) {    String country = (String)mAdapter.getChild(groupposition,childposition);    // update the text vIEw with the country    return true;}

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