0
Ich mache erweiterbare Listenansicht mit drei Ebenen. Aber die erste Ebene ist richtig. Aber zweite und dritte Ebene Kinder sind nicht korrekt.Aktuell konvertiere ich Json in erweiterbare Listview. mein Code unten HaupttätigkeitProblem mit erweiterbaren Listenansicht
public class MainActivity extends Activity
{
ExpandableListView explvlist;
TextView ui_hot = null;
int hot_number = 0;
// private ExpandListAdapter ExpAdapter;
private ArrayList<Group> ExpListItems;
private ExpandableListView ExpandList;
// private SliderLayout mDemoSlider;
Intent intent = null;
RequestQueue requestQueue1, requestQueue2;
int[] firstcatid = null,secondcatid = null;
String firsttitle[] = null,secondtitle[] = null;
int j = 0;
ArrayList<Group> list,list2,list3;
CustExpListview SecondLevelexplv;
ExpandableListView elv;
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
requestQueue1 = Volley.newRequestQueue(getApplicationContext());
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.GET, "http://www.fasr.com/cntrldata/ezproductfristcategory.php",
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
try {
list = new ArrayList<Group>();
JSONArray ja = response.getJSONArray("hi");
JSONArray ja2 = response.getJSONArray("hi2");
JSONArray ja3 = response.getJSONArray("hi3");
firsttitle = new String[ja.length()];
firstcatid = new int[ja.length()];
JSONObject jsonObject2=null,jsonObject3=null,jsonObject;
for (int i = 0; i < ja.length(); i++) {
jsonObject = ja.getJSONObject(i);
// Log.e("hie",jsonObject2.getInt("second_category_id")+"");
//jsonObject3 = ja3.getJSONObject(i);
firstcatid[i] = jsonObject.getInt("first_category_id");
firsttitle[i] = jsonObject.getString("first_category_name");
}
secondcatid=new int[ja2.length()];
for(int i =0;i<ja2.length();i++){
jsonObject2 = ja2.getJSONObject(i);
secondcatid[i]=jsonObject2.getInt("second_category_id");
}
for(int i = 0;i<ja.length();i++){
Group gru = new Group();
gru.setName(firsttitle[i]);
list2 = new ArrayList<Group>();
for(int j=0;j<ja2.length();j++){
Group gru2 = new Group();
jsonObject2 = ja2.getJSONObject(j);
//Toast.makeText(getApplicationContext(),jsonObject2.getInt("second_category_id"),Toast.LENGTH_SHORT).show();
if(firstcatid[i]==jsonObject2.getInt("first_category_id")){
gru2.setName(jsonObject2.getString("second_category_name"));
list3= new ArrayList<Group>();
for(int k=0;k<ja3.length();k++){
Group gru3= new Group();
jsonObject3 = ja3.getJSONObject(k);
if(secondcatid[j]==jsonObject2.getInt("second_category_id")){
Log.e("hie", jsonObject2.getInt("second_category_id") + "");
gru3.setName(jsonObject3.getString("third_category_name"));
list3.add(gru3);
}
gru2.setItems(list3);
}
list2.add(gru2);
}
}
gru.setItems(list2);
list.add(gru);
}
// Toast.makeText(getApplicationContext(),url[2],Toast.LENGTH_SHORT).show();
//output.setText(data);
ExpListItems = list;
explvlist = (ExpandableListView)findViewById(R.id.ParentLevel);
explvlist.setAdapter(new ParentLevel(getApplicationContext(),ExpListItems,list2,list3));
//ExpAdapter = new ExpandListAdapter(getApplicationContext(), ExpListItems);
// ExpandList.setAdapter(ExpAdapter);
} catch (JSONException e) {
e.printStackTrace();
}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.e("Volley", error.toString());
}
}
);
requestQueue1.add(jsonObjectRequest);
}
public class ParentLevel extends BaseExpandableListAdapter {
private Context context;
private ArrayList<Group> groups,childgroup,childgroup2,a1;
@Override
public Object getChild(int groupPosition, int childPosition) {
ArrayList<Group> chList = groups.get(groupPosition).getItems();
return chList.get(childPosition);
}
public ParentLevel(Context context, ArrayList<Group> groups,ArrayList<Group> groups2,ArrayList<Group> groups3) {
this.context = context;
this.groups = groups;
this.childgroup=groups2;
this.childgroup2=groups3;
}
@Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
@Override
public View getChildView(int groupPosition, int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
Group child = (Group) getChild(groupPosition, childPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) context
.getSystemService(context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.group_item, null);
}
//child.setItems(childgroup);
//requestQueue1 = Volley.newRequestQueue(getApplicationContext());
SecondLevelexplv = new CustExpListview(MainActivity.this);
SecondLevelexplv.setAdapter(new SecondLevelAdapter(context, childgroup));
SecondLevelexplv.setGroupIndicator(null);
return SecondLevelexplv;
}
@Override
public int getChildrenCount(int groupPosition) {
ArrayList<Group> chList = groups.get(groupPosition).getItems();
if(!(chList==null))
return chList.size();
else return 0;
}
@Override
public Object getGroup(int groupPosition) {
return groups.get(groupPosition);
}
@Override
public int getGroupCount() {
return groups.size();
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent){
Group group = (Group) getGroup(groupPosition);
if(convertView==null)
{
LayoutInflater inf = (LayoutInflater) context
.getSystemService(context.LAYOUT_INFLATER_SERVICE);
convertView = inf.inflate(R.layout.group_item, null);
}
TextView tv = (TextView) convertView.findViewById(R.id.group_name);
tv.setPadding(10, 7, 7, 7);
tv.setText(group.getName());
ImageView imageView = (ImageView) convertView.findViewById(R.id.imageView);
if(!(group.getItems()==null))
{
if (!group.getItems().isEmpty()) {
if (isExpanded) {
tv.setTypeface(null, Typeface.BOLD);
imageView.setBackgroundResource(R.drawable.ic_action_minus);
} else {
imageView.setBackgroundResource(R.drawable.ic_action_add);
tv.setTypeface(null, Typeface.NORMAL);
}
} else imageView.setVisibility(View.INVISIBLE);
}
return convertView;
}
@Override
public boolean hasStableIds()
{
return true;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition)
{
return true;
}
}
public class CustExpListview extends ExpandableListView
{
int intGroupPosition, intChildPosition, intGroupid;
public CustExpListview(Context context)
{
super(context);
}
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec)
{
widthMeasureSpec = MeasureSpec.makeMeasureSpec(960, MeasureSpec.AT_MOST);
heightMeasureSpec = MeasureSpec.makeMeasureSpec(600, MeasureSpec.AT_MOST);
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
}
public class SecondLevelAdapter extends BaseExpandableListAdapter {
int i = 0;
private Context context;
private ArrayList<Group> groups;
private int gr;
public SecondLevelAdapter(Context context, ArrayList<Group> groups) {
this.context = context;
this.groups = groups;
}
@Override
public Object getChild(int groupPosition, int childPosition) {
ArrayList<Group> chList = groups.get(groupPosition).getItems();
return chList.get(childPosition);
}
@Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
@Override
public View getChildView(int groupPosition, int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
Group child = (Group) getChild(groupPosition, childPosition);
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) context
.getSystemService(context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.group_item, null);
}
TextView tv = (TextView) convertView.findViewById(R.id.group_name);
tv.setText(child.getName().toString());
//Toast.makeText(context,child.getName().toString()+"hi",Toast.LENGTH_SHORT).show();
return convertView;
}
@Override
public int getChildrenCount(int groupPosition) {
ArrayList<Group> chList = groups.get(groupPosition).getItems();
if (!(chList == null))
return chList.size();
else return 0;
}
@Override
public Object getGroup(int groupPosition) {
return groups.get(groupPosition);
}
@Override
public int getGroupCount() {
return groups.size();
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
Group group = (Group) getGroup(groupPosition);
if (convertView == null) {
LayoutInflater inf = (LayoutInflater) context
.getSystemService(context.LAYOUT_INFLATER_SERVICE);
convertView = inf.inflate(R.layout.group_item, null);
}
TextView tv = (TextView) convertView.findViewById(R.id.group_name);
tv.setText(group.getName());
ImageView imageView = (ImageView) convertView.findViewById(R.id.imageView);
if (!(group.getItems() == null)) {
if (!group.getItems().isEmpty()) {
if (isExpanded) {
tv.setTypeface(null, Typeface.BOLD);
imageView.setBackgroundResource(R.drawable.ic_action_minus);
} else {
imageView.setBackgroundResource(R.drawable.ic_action_add);
tv.setTypeface(null, Typeface.NORMAL);
}
} else imageView.setVisibility(View.INVISIBLE);
}
return convertView;
}
@Override
public boolean hasStableIds() {
return true;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
}
}
Was habe ich dieses 
