可展开的列表视图不会扩展
你需要准备这样的屏幕
这是我的可扩展列表视图的代码
适配器类： NewAdapter.java
public class NewAdapter extends BaseExpandableListAdapter { public ArrayList groupItem; ArrayList tempChild; public ArrayList Childtem = new ArrayList(); public LayoutInflater minflater; public Activity activity; public NewAdapter(ArrayList grList, ArrayList childItem) { groupItem = grList; this.Childtem = childItem; } public void setInflater(LayoutInflater mInflater, Activity act) { this.minflater = mInflater; activity = act; } @Override public Object getChild(int groupPosition, int childPosition) { return null; } @Override public long getChildId(int groupPosition, int childPosition) { return 0; } @Override public View getChildView(int groupPosition, final int childPosition, boolean isLastChild, View convertView, ViewGroup parent) { tempChild = (ArrayList) Childtem.get(groupPosition); TextView text = null; if (convertView == null) { convertView = minflater.inflate(R.layout.childrow, null); } text = (TextView) convertView.findViewById(R.id.textView1); text.setText(tempChild.get(0)); text = (TextView) convertView.findViewById(R.id.textView2); text.setText(tempChild.get(1)); text = (TextView) convertView.findViewById(R.id.textView3); text.setText(tempChild.get(2)); convertView.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { Toast.makeText(activity, tempChild.get(childPosition), Toast.LENGTH_SHORT).show(); } }); return convertView; } @Override public int getChildrenCount(int groupPosition) { return 1; } @Override public Object getGroup(int groupPosition) { return null; } @Override public int getGroupCount() { return groupItem.size(); } @Override public void onGroupCollapsed(int groupPosition) { super.onGroupCollapsed(groupPosition); } @Override public void onGroupExpanded(int groupPosition) { super.onGroupExpanded(groupPosition); } @Override public long getGroupId(int groupPosition) { return 0; } @Override public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) { ViewHolder holder=null; if (convertView == null) { convertView = minflater.inflate(R.layout.grouprow, null); holder = new ViewHolder(); holder.name=(TextView)convertView.findViewById(R.id.playername); holder.team = (TextView) convertView.findViewById(R.id.vs); holder.salary = (TextView) convertView.findViewById(R.id.salary); convertView.setTag(holder); } else { holder = (ViewHolder) convertView.getTag(); } ParentBean playerdetails = groupItem.get(groupPosition); holder.name.setText(playerdetails.getPlayername()); holder.team.setText(playerdetails.getPlayerteam()); holder.salary.setText(playerdetails.getPlayersalary()); return convertView; } @Override public boolean hasStableIds() { return false; } @Override public boolean isChildSelectable(int groupPosition, int childPosition) { return false; } private class ViewHolder { TextView team; TextView name; TextView salary; } class ParentBean{ String playername,playerteam,playersalary; public ParentBean(String playername,String playerteam,String playersalary) { this.playername=playername; this.playersalary=playersalary; this.playerteam=playerteam; } /** * @return the playername */ public String getPlayername() { return playername; } /** * @param playername the playername to set */ public void setPlayername(String playername) { this.playername = playername; } /** * @return the playerteam */ public String getPlayerteam() { return playerteam; } /** * @param playerteam the playerteam to set */ public void setPlayerteam(String playerteam) { this.playerteam = playerteam; } /** * @return the playersalary */ public String getPlayersalary() { return playersalary; } /** * @param playersalary the playersalary to set */ public void setPlayersalary(String playersalary) { this.playersalary = playersalary; } } } 这是我的活动： MainActivity.java
public class MainActivity extends ExpandableListActivity implements OnChildClickListener { Context context; ArrayList groupItem = new ArrayList(); ArrayList childItem = new ArrayList(); NewAdapter mNewAdapter; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); ExpandableListView expandbleLis = getExpandableListView(); expandbleLis.setDividerHeight(2); expandbleLis.setGroupIndicator(null); expandbleLis.setClickable(true); expandbleLis.setFocusable(true); context=this; getData(); mNewAdapter = new NewAdapter(groupItem, childItem); mNewAdapter.setInflater((LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE),this); getExpandableListView().setAdapter(mNewAdapter); expandbleLis.setOnChildClickListener(this); } public void getData() { JsonDataCallback callback=new JsonDataCallback(MainActivity.this) { @Override public void receiveData(Object object) { String jsonData=(String)object; setData(jsonData); } }; callback.execute("http://111.93.7.119:8080/FirstPickService/Players?sportid=fc2e88e6-ac87-4d27-b6b3-863baa9f06ec",null,null); } protected void setData(String jsonData) { try { JSONObject players=new JSONObject(jsonData); final JSONArray playersArray=players.getJSONArray("players"); for(int i=0;i<playersArray.length();i++) { JSONObject jsonObj=playersArray.getJSONObject(i); String teamplayer=jsonObj.getString("playerfullname"); String psalary=jsonObj.getString("playerprice"); String strTeamVS=jsonObj.getString("teamid")+"@"+jsonObj.getString("awayteam"); groupItem.add(mNewAdapter.new ParentBean(teamplayer, psalary, strTeamVS)); String strsalary = jsonObj.getString("playerpricelong"); ArrayList child = new ArrayList(); child.add(psalary); child.add(strTeamVS); child.add(strsalary); childItem.add(child); } mNewAdapter.notifyDataSetChanged(); } catch (Exception e) { e.printStackTrace(); } } @Override public boolean onChildClick(ExpandableListView parent, View v, int groupPosition, int childPosition, long id) { Toast.makeText(MainActivity.this, "Clicked On Child", Toast.LENGTH_SHORT).show(); return true; } }
我不确定，但我使用了一个按钮进行选择，因为可扩展列表失去了焦点，并且在点击listitem时没有显示childrow …
尝试使选择按钮在xml中non-focusable 。