Making my ExpandableListView child clickable is not working?

Making my ExpandableListView child clickable is not working? - java

When I click on the child views on my app it does not respond to the click. I pretty much googled this as much as I could without any success. I tried debugging it and when I touch the child it does not go in the onclick method
Activity class
public class LetestNews extends ExpandableListActivity{
private ArrayList<String> parentItems = new ArrayList<String>();
private ArrayList<Object> childItems = new ArrayList<Object>();
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// this is not really necessary as ExpandableListActivity contains an ExpandableList
//setContentView(R.layout.main);
ExpandableListView expandableList = getExpandableListView(); // you can use (ExpandableListView) findViewById(R.id.list)
expandableList.setDividerHeight(2);
expandableList.setGroupIndicator(null);
expandableList.setClickable(true);
setGroupParents();
setChildData();
ExpandableAdapter adapter = new ExpandableAdapter(parentItems, childItems);
adapter.setInflater((LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE), this);
expandableList.setAdapter(adapter);
//expandableList.setOnChildClickListener(this);
expandableList.setOnChildClickListener(new ExpandableListView.OnChildClickListener() {
public boolean onChildClick(ExpandableListView parent, View v,int groupPosition, int childPosition, long id) {
/* You must make use of the View v, find the view by id and extract the text as below*/
Toast.makeText(getBaseContext(), "Shaan is a monkey",
Toast.LENGTH_SHORT).show();
return true; // i missed this
}
});
}
public void setGroupParents() {
try {
FileInputStream newsIn = openFileInput("news.txt");
String newsObj = "";
String objEnc="";
Gson gson=new Gson();
BufferedReader inputNews = new BufferedReader(new InputStreamReader(newsIn, "UTF-8"));
StringBuilder sbuilderNews = new StringBuilder();
newsObj = inputNews.readLine();
while (newsObj != null) {
sbuilderNews.append(newsObj);
newsObj = inputNews.readLine();
if (newsObj != null) {
// sbuilder.append("\n");
}
}
newsIn.close();
newsObj = sbuilderNews.toString();
SubredditNews objNews = gson.fromJson(newsObj, SubredditNews.class);
ArrayList<SubredditIN>subredditObjects=objNews.subreddits;
for(int i=0;i<subredditObjects.size();i++){
parentItems.add(subredditObjects.get(i).name);
}
}catch(Exception e){
}
}
public void setChildData() {
// Android
ArrayList<String> child = new ArrayList<String>();
String a="";
/*child.add("Core");
child.add("Games");
childItems.add(child);*/
try {
FileInputStream newsIn = openFileInput("news.txt");
String newsObj = "";
String objEnc="";
Gson gson=new Gson();
BufferedReader inputNews = new BufferedReader(new InputStreamReader(newsIn, "UTF-8"));
StringBuilder sbuilderNews = new StringBuilder();
newsObj = inputNews.readLine();
while (newsObj != null) {
sbuilderNews.append(newsObj);
newsObj = inputNews.readLine();
if (newsObj != null) {
// sbuilder.append("\n");
}
}
newsIn.close();
newsObj = sbuilderNews.toString();
SubredditNews objNews = gson.fromJson(newsObj, SubredditNews.class);
ArrayList<SubredditIN>subredditObjects=objNews.subreddits;
for(int i=0;i<objNews.subreddits.size();i++){
child = new ArrayList<String>();
for(int j=0;j<objNews.subreddits.get(i).posts.size();j++) {
subredditObjects.get(i).setURL();
a=subredditObjects.get(i).getPostLink();
child.add(objNews.subreddits.get(i).posts.get(j));
Log.i("this is the link", a);
}
childItems.add(child);
}
}catch(Exception e){
String dd="";
}
}
}
Adapter class
public class ExpandableAdapter extends BaseExpandableListAdapter {
private Activity activity;
private ArrayList<Object> childtems;
private LayoutInflater inflater;
private ArrayList<String> parentItems, child;
public ExpandableAdapter(ArrayList<String> parents, ArrayList<Object> childern) {
this.parentItems = parents;
this.childtems = childern;
}
public void setInflater(LayoutInflater inflater, Activity activity) {
this.inflater = inflater;
this.activity = activity;
}
#Override
public View getChildView(int groupPosition, final int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
child = (ArrayList<String>) childtems.get(groupPosition);
TextView textView = null;
if (convertView == null) {
convertView = inflater.inflate(R.layout.group, null);
}
textView = (TextView) convertView.findViewById(R.id.textView1);
textView.setText(child.get(childPosition));
//textView.setText(Html.fromHtml("<a href=http://www.stackoverflow.com> STACK OVERFLOW "));
// textView.setMovementMethod(LinkMovementMethod.getInstance());
convertView.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View view) {
Toast.makeText(activity, child.get(childPosition),
Toast.LENGTH_SHORT).show();
}
});
return convertView;
}
#Override
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
if (convertView == null) {
convertView = inflater.inflate(R.layout.child, null);
}
((CheckedTextView) convertView).setText(parentItems.get(groupPosition));
((CheckedTextView) convertView).setChecked(isExpanded);
return convertView;
}
#Override
public Object getChild(int groupPosition, int childPosition) {
return null;
}
#Override
public long getChildId(int groupPosition, int childPosition) {
return 0;
}
#Override
public int getChildrenCount(int groupPosition) {
return ((ArrayList<String>) childtems.get(groupPosition)).size();
}
#Override
public Object getGroup(int groupPosition) {
return null;
}
#Override
public int getGroupCount() {
return parentItems.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 boolean hasStableIds() {
return false;
}
#Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
}

Related

Problem with an ExpandableList with 3 level

I have a problem with my ExpendableList. I am trying
to make a 3 level expandablelist. The display on the 3 levels works
fine and stays tidy as it should. But I don't know why, the
subcategories are duplicated. Here is the whole code with the adapter
and the creation of my HashMap. If you have an idea where this comes
from you would help me a lot!
public HashMap<String, HashMap<String, ArrayList<String>>>typeItemList;
public HashMap<String, ArrayList<String>>materiauItemList;
public HashMap<String, HashMap<String, HashMap<String, ArrayList<String>>>> familleItemList;
private ExpandableListView expandableListView;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ArrayList<String> famille = new ArrayList<>();
ArrayList<String> type= new ArrayList<>();
ArrayList<String> materiaux = new ArrayList<>();
familleItemList = new HashMap<>();
for(int g = 1; g<=5; g++) {
famille.add("famille "+g);
HashMap<String, HashMap<String, ArrayList<String>>> typeItemList1 = new HashMap<>();
for (int h = 1; h <= 4; h++) {
type.add("type " + g+h);
HashMap<String, ArrayList<String>> matItemList = new HashMap<>();
for (int i = 1; i <= 4; i++) {
materiaux.add("materiau " + g+h+i);
ArrayList<String> outils = new ArrayList<>();
for (int j = 1; j <= 10; j++) {
outils.add("outils " + g+h+i+j);
}
matItemList.put("materiau " + i, outils);
}
typeItemList1.put("type " + h, matItemList);
}
familleItemList.put("famille "+g, typeItemList1);
}
expandableListView = (ExpandableListView) findViewById(R.id.mainList);
expandableListView.setAdapter(new ParentLevel(this,familleItemList, famille ));
}
public class ParentLevel extends BaseExpandableListAdapter {
private Context context;
ArrayList<String> famille;
HashMap<String, HashMap<String, HashMap<String, ArrayList<String>>>> familleItemList;
public ParentLevel(Context context, HashMap<String, HashMap<String, HashMap<String, ArrayList<String>>>> familleItemList, ArrayList<String> famille ) {
this.context = context;
this.familleItemList = familleItemList;
this.famille=famille;
}
//
#Override
public int getGroupCount() {
return famille.size();
}
#Override
public int getChildrenCount(int i) {
return familleItemList.get(famille.get(i)).size();
}
#Override
public Object getGroup(int i) {
return famille.get(i);
}
#Override
public Object getChild(int i, int i1) {
return familleItemList.get(famille.get(i)).get(i1);
}
#Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
#Override
public long getChildId(int groupPosition, int childPosition) {
return 0;
}
#Override
public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
SecondLevelExpandableListView secondLevelELV = new SecondLevelExpandableListView(MainActivity.this);
ArrayList<String> list = new ArrayList<>();
for (String i : Objects.requireNonNull(familleItemList.get(famille.get(groupPosition))).keySet()) {
list.add(i);}
typeItemList = new HashMap<>();
typeItemList=familleItemList.get(getGroup(groupPosition));
secondLevelELV.setAdapter(new SecondLevelAdapter(context, typeItemList,list ));
secondLevelELV.setGroupIndicator(null);
return secondLevelELV;
}
#Override
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
if (convertView == null) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.row_first, null);
TextView text = (TextView) convertView.findViewById(R.id.eventsListEventRowText);
String sGroup = String.valueOf(getGroup(groupPosition));
text.setText(sGroup);
}
return convertView;
}
#Override
public boolean hasStableIds() {
return true;
}
#Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
}
public static class SecondLevelExpandableListView extends ExpandableListView {
public SecondLevelExpandableListView(Context context) {
super(context);
}
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
//999999 is a size in pixels. ExpandableListView requires a maximum height in order to do measurement calculations.
heightMeasureSpec = MeasureSpec.makeMeasureSpec(999999, MeasureSpec.AT_MOST);
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
}
public class SecondLevelAdapter extends BaseExpandableListAdapter {
private Context context;
private ArrayList<String> type;
private HashMap<String, HashMap<String, ArrayList<String>>> typeItemList;
public SecondLevelAdapter(Context context,HashMap<String, HashMap<String, ArrayList<String>>> typeItemList, ArrayList<String> type) {
this.context = context;
this.typeItemList = typeItemList;
this.type=type;
}
#Override
public int getGroupCount() {
return type.size();
}
#Override
public int getChildrenCount(int i) {
return typeItemList.get(type.get(i)).size();
}
#Override
public Object getGroup(int i) {
return type.get(i);
}
#Override
public Object getChild(int i, int i1) {
return typeItemList.get(type.get(1)).get(i1);
}
#Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
#Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
#Override
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
if (convertView == null) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.row_third, null);
TextView text = (TextView) convertView.findViewById(R.id.eventsListEventRowText);
String sGroup = String.valueOf(getGroup(groupPosition));
text.setText(sGroup);
}
return convertView;
}
#Override
public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
ThirdLevelExpandableListView thridLevelELV = new ThirdLevelExpandableListView(MainActivity.this);
ArrayList<String> list = new ArrayList<>();
for (String i : typeItemList.get(getGroup(groupPosition)).keySet() ){
list.add(i);}
materiauItemList=new HashMap<>();
materiauItemList = typeItemList.get(getGroup(groupPosition));
thridLevelELV.setAdapter(new ThirdLevelAdapter(context,materiauItemList,list));
thridLevelELV.setGroupIndicator(null);
return thridLevelELV;
}
#Override
public boolean hasStableIds() {
return true;
}
#Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
}
public static class ThirdLevelExpandableListView extends ExpandableListView {
public ThirdLevelExpandableListView(Context context) {
super(context);
}
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
//999999 is a size in pixels. ExpandableListView requires a maximum height in order to do measurement calculations.
heightMeasureSpec = MeasureSpec.makeMeasureSpec(99999, MeasureSpec.AT_MOST);
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
}
public static class ThirdLevelAdapter extends BaseExpandableListAdapter {
private Context context;
private ArrayList<String> materiau;
private HashMap<String, ArrayList<String>> materiauItemList;
public ThirdLevelAdapter(Context context,HashMap<String, ArrayList<String>> materiauItemList,ArrayList<String> materiau) {
this.context = context;
this.materiauItemList = materiauItemList;
this.materiau = materiau;
}
#Override
public Object getGroup(int groupPosition) {
return materiau.get(groupPosition);
}
#Override
public int getGroupCount() {
return materiau.size();
}
#Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
#Override
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
if (convertView == null) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.row_four, null);
TextView text = (TextView) convertView.findViewById(R.id.eventsListEventRowText);
text.setText(String.valueOf(getGroup(groupPosition)));
}
return convertView;
}
#Override
public Object getChild(int groupPosition, int childPosition) {
return materiauItemList.get(materiau.get(groupPosition)).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) {
if (convertView == null) {
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.row_second, null);
TextView text = (TextView) convertView.findViewById(R.id.eventsListEventRowText);
String outils = String.valueOf(getChild(groupPosition, childPosition));
text.setText(outils);
}
return convertView;
}
#Override
public int getChildrenCount(int groupPosition) {
return materiauItemList.get(materiau.get(groupPosition)).size();
}
#Override
public boolean hasStableIds() {
return true;
}
#Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
}
}
[family photo displayed correctly][1] [photo of repeating types][2]
[photo of tools that are also repeated][3]
Thank you for your feedback.
[1]: https://i.stack.imgur.com/8TiQa.png [2]:
https://i.stack.imgur.com/LOMol.png [3]:
https://i.stack.imgur.com/hdFAE.png

Expandale list view's Child view's issue

I am working on the expandable list view with multiple group layouts but having single child as common for all the layouts but in the getChildView() method I am getting the cast error not able understand whats the reason behind please help me out friends
this error I am getting
java.lang.ClassCastException:
com.app.prominere.standardtakeout.SubItem_ExpandAdapter$Groupname
cannot be cast to
com.app.prominere.standardtakeout.SubItem_ExpandAdapter$Childnames
BaseAdapter.Java
public class SubItem_ExpandAdapter extends BaseExpandableListAdapter {
Context subcontext;
private ArrayList<Subitem_base> subitem_bases;
private SharedPreferences loginPreferences;
private SharedPreferences.Editor loginPrefsEditor;
String itembasename, itemde, subtmsub, subitempri;
private Activity parentActivity;
public static final int single = 1;
public static final int two = 2;
public SubItem_ExpandAdapter(Context subcontext, ArrayList<Subitem_base> subitem_bases, Activity parentactivity) {
this.subcontext = subcontext;
this.subitem_bases = subitem_bases;
this.parentActivity = parentactivity;
}
static class Groupname {
private TextView group_name;
private TextView groupitem_price;
// private Button grouporder;
}
static class Childnames {
private TextView item_name;
private TextView item_price;
private Button order;
}
#Override
public int getGroupCount() {
return subitem_bases.size();
}
#Override
public int getChildrenCount(int groupPosition) {
ArrayList<Subitem_base_child> subitem_base_children = subitem_bases.get(groupPosition).getItems();
return subitem_base_children.size();
}
#Override
public Object getGroup(int groupPosition) {
return subitem_bases.get(groupPosition);
}
#Override
public Object getChild(int groupPosition, int childPosition) {
ArrayList<Subitem_base_child> subitem_base_children = subitem_bases.get(groupPosition).getItems();
return subitem_base_children.get(childPosition);
}
#Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
#Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
#Override
public boolean hasStableIds() {
return true;
}
#Override
public int getGroupTypeCount() {
return 2;
}
#Override
public int getGroupType(int groupPosition) {
Subitem_base groupstype = subitem_bases.get(groupPosition);
if (groupstype.getGrpcount().equals("1")) {
return single;
} else {
return two;
}
}
#Override
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
Groupname groupname;
Subitem_base groupitem = subitem_bases.get(groupPosition);
int grouptype = getGroupType(groupPosition);
if (convertView == null) {
if (grouptype == single) {
convertView = LayoutInflater.from(subcontext).inflate(R.layout.groupcount_single, parent, false);
} else {
convertView = LayoutInflater.from(subcontext).inflate(R.layout.group_item, parent, false);
}
groupname = new Groupname();
groupname.group_name = (TextView) convertView.findViewById(R.id.group_name);
groupname.groupitem_price = (TextView) convertView.findViewById(R.id.groupitem_price);
// groupname.grouporder = (Button) convertView.findViewById(R.id.grouporder);
convertView.setTag(groupname);
} else {
groupname = (Groupname) convertView.getTag();
}
groupname.group_name.setText(groupitem.getGroupitemname());
groupname.groupitem_price.setText(groupitem.getGrprice());
if (isExpanded) {
String[] elements = {groupitem.getGroupitemname()};
for (String s : elements) {
itembasename = s;
}
}
return convertView;
}
#Override
public View getChildView(final int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
final Childnames childname;
if (convertView == null) {
convertView = LayoutInflater.from(subcontext).inflate(R.layout.child_item, parent, false);
childname = new Childnames();
childname.item_name = (TextView) convertView.findViewById(R.id.item_name);
childname.item_price = (TextView) convertView.findViewById(R.id.item_price);
childname.order = (Button) convertView.findViewById(R.id.order);
convertView.setTag(childname);
} else {
childname = (Childnames) convertView.getTag();
}
Subitem_base_child childitem = (Subitem_base_child) getChild(groupPosition, childPosition);
if (childitem.getChilditemname().isEmpty()) {
childname.item_name.setVisibility(View.GONE);
} else {
childname.item_name.setText(childitem.getChilditemname());
}
childname.item_price.setText(childitem.getChilditemprice());
loginPreferences = subcontext.getSharedPreferences("loginPrefs", Context.MODE_PRIVATE);
final String status = loginPreferences.getString("Status", "");
if (status.equals("0")) {
childname.order.setBackgroundResource(R.drawable.cart_disable);
} else {
childname.order.setBackgroundResource(R.drawable.cart_button);
}
childname.order.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
if (status.equals("0")) {
final AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(parentActivity);
SharedPreferences customerid = subcontext.getSharedPreferences("loginPrefs", Context.MODE_PRIVATE);
String opentimes = customerid.getString("open", "");
alertDialogBuilder.setMessage(opentimes);
alertDialogBuilder.setPositiveButton("OK", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface arg0, int arg1) {
alertDialogBuilder.setCancelable(true);
}
});
AlertDialog alertDialog = alertDialogBuilder.create();
alertDialog.show();
} else {
String poundre = childname.item_price.getText().toString();
subtmsub = childname.item_name.getText().toString();
subitempri = poundre.replace("£", "");
addcart();
}
}
});
return convertView;
}
#Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
private void addcart() {
loginPreferences = subcontext.getSharedPreferences("loginPrefs", Context.MODE_PRIVATE);
loginPrefsEditor = loginPreferences.edit();
SharedPreferences customerid = subcontext.getSharedPreferences("loginPrefs", Context.MODE_PRIVATE);
loginPreferences.edit();
String customid = customerid.getString("customerid", "");
String cartdetails = itembasename + " " + subtmsub;
String cartspacong = cartdetails.replace(" ", "$");
cartspacong = cartspacong.replace("&", "and");
String addcarturl = Constant.commonurltake + "cart_process.php?userid=" + customid + "&Item=" + cartspacong + "&Itemcount=1&price=" + subitempri + "&page=items";
Log.d("Cart", addcarturl);
JsonArrayRequest cartreq = new JsonArrayRequest(Request.Method.POST, addcarturl, (String) null, new Response.Listener<JSONArray>() {
#Override
public void onResponse(JSONArray response) {
for (int i = 0; i < response.length(); i++) {
try {
JSONObject cartobj = response.getJSONObject(i);
String cartnumber = cartobj.getString("count");
loginPrefsEditor.putString("Count", cartnumber);
BaseActivity.cartnumber.setVisibility(View.VISIBLE);
BaseActivity.cartnumber.setText(cartnumber);
loginPrefsEditor.apply();
if (cartobj.has("message")) {
Toast carttost = Toast.makeText(subcontext, cartobj.getString("message"), Toast.LENGTH_SHORT);
carttost.setGravity(Gravity.CENTER, 0, 0);
carttost.show();
} else {
Toast carttost = Toast.makeText(subcontext, "Product Added To Cart", Toast.LENGTH_SHORT);
carttost.setGravity(Gravity.CENTER, 0, 0);
carttost.show();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Toast.makeText(subcontext, "" + error, Toast.LENGTH_SHORT).show();
}
});
cartreq.setRetryPolicy(new DefaultRetryPolicy(10000, DefaultRetryPolicy.DEFAULT_MAX_RETRIES,
DefaultRetryPolicy.DEFAULT_BACKOFF_MULT));
AppController.getInstance().addToRequestQueue(cartreq);
}
}

According to official documentation
It is not guaranteed that the convertView will have been previously created by getChildView(int, int, boolean, View, ViewGroup)
I think in this case you need to check
if (convertView != null && convertView.getTag() instance of Childnames) {
// reuse the convertView
else
// create new view
}

That is because you are mixing the View types, I think is probably from here:
#Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
#Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
#Override
public boolean hasStableIds() {
return true;
}
You should probably use unique ids for your children because this way they can be mixed up with the group ids.

How to fetch the value from custom ExpandableList Adapter class and set into previous fragment of UI component

I have the following two class one is fragment class and another one is custom expandablelistadapter class. i want the values fetch from the expandablelistadapter class and set the values into fragment UI component like set into textview i describe as comment in following class where to taken values
and where to set the values
SlideContentFragment.java
public class SlidingContentFragment extends Fragment {
static final String LOG_TAG = "SlidingContentFragment";
// store category list from Conastant list, used for to display pagetitle
List<String> catList = AppConstants.CATEGORY_LIST;
private static String[] tmpId = {"35","36","41","42","43","44","45","46"};
ExpandableListView exListCategory;
private SlidingTabLayout mSlidingTabLayout;
/**
* A {#link android.support.v4.view.ViewPager} which will be used in conjunction with the {#link SlidingTabLayout} above.
*/
private ViewPager mViewPager;
//private ExpandableListAdapter mAdapter; // added new
private SamplePagerAdapter myAdapter;
public SlidingContentFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_sliding_content, container, false);
ImageButton cartImgBtn = (ImageButton)v.findViewById(R.id.imgBtnCart);
TextView totalCntItem = (TextView)v.findViewById(R.id.tvCartItemCount);
// I want here set the value of totalCounter from ExpandableList Adapter class when i click on plus
// OR minus button of particular item it updates its value as total count of all item selected
// here following line of code which not worked
totalCntItem.setText(String.format("%d",CategoryItemListAdapter.getTotalCounter()));
return v;
}
#Override
public void onViewCreated(View view, Bundle savedInstanceState) {
// BEGIN_INCLUDE (setup_viewpager)
// Get the ViewPager and set it's PagerAdapter so that it can display items
this.myAdapter = new SamplePagerAdapter(); // added new
mViewPager = (ViewPager) view.findViewById(R.id.viewpager);
mViewPager.setAdapter(this.myAdapter);
// END_INCLUDE (setup_viewpager)
// BEGIN_INCLUDE (setup_slidingtablayout)
// Give the SlidingTabLayout the ViewPager, this must be done AFTER the ViewPager has had
// it's PagerAdapter set.
mSlidingTabLayout = (SlidingTabLayout) view.findViewById(R.id.sliding_tabs);
mSlidingTabLayout.setViewPager(mViewPager);
}
public class SamplePagerAdapter extends PagerAdapter {
public SamplePagerAdapter() {
super();
}
#Override
public int getCount() {
return catList.size();
}
#Override
public boolean isViewFromObject(View view, Object o){
return o == view;
}
#Override
public CharSequence getPageTitle(int position) {
return catList.get(position);
}
#Override
public int getItemPosition (Object object)
{
return PagerAdapter.POSITION_NONE;
}
#Override
public Object instantiateItem(ViewGroup container, final int position) {
//return super.instantiateItem(container, position);
ViewPager viewPager = (ViewPager)container;
View view = getActivity().getLayoutInflater().inflate(R.layout.pager_item,
container, false);
viewPager.addView(view);
exListCategory = (ExpandableListView)view.findViewById(R.id.myExpandableListView);
//exListCategory.setIndicatorBounds(10,20);
exListCategory.setDividerHeight(2);
if(ConnectionDetector.isInternetAvailable(getActivity())) {
new CategoryJSONAsyncTask().execute("http://..../api/Main/GetCateenOrderCategoryItemListDetail?CategoryID=" + tmpId[position].trim());
}else{
Utility.buildDialog(getActivity()).show();
}
Log.i(String.format("%s: POSITION", LOG_TAG), String.valueOf(position));
Log.i(String.format("%s: CATLIST", LOG_TAG),String.valueOf(catList.get(position)));
view.setTag(position);
return view;
}
#Override
public void destroyItem(ViewGroup container, int position, Object object) {
//viewpager
ViewPager viewPager = (ViewPager)container;
View view = (View) object;
view.getTag(position);
viewPager.removeView(view);
//((ViewPager) container).removeView((View) object);
}
}
public class CategoryJSONAsyncTask extends AsyncTask<String,Void,String> {
#Override
protected void onPreExecute() {
super.onPreExecute();
}
#Override
protected String doInBackground(String... params) {
String result = "";
try {
HttpGet httppost = new HttpGet(params[0]);
HttpClient httpclient = new DefaultHttpClient();
HttpResponse response = httpclient.execute(httppost);
int status = response.getStatusLine().getStatusCode();
if (status == 200) {
HttpEntity entity = response.getEntity();
result = EntityUtils.toString(entity);
return result;
}
return result;
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
#Override
protected void onPostExecute(String result) {
super.onPostExecute(result);
ArrayList<CategoryParentItemList> listParent = fetchResponse(result.replace("\n","").trim());
/*for (Object obj : listParent){
if(obj.getClass() == CategoryParentItemList.class){
CategoryParentItemList p = (CategoryParentItemList)obj;
System.out.println("P-ItemName: "+ p.subCategoryName);
}
}*/
CategoryItemListAdapter adapter = new CategoryItemListAdapter(SlidingContentFragment.this.getActivity(), listParent);
exListCategory.setAdapter(adapter);
adapter.notifyDataSetChanged();
}
}
public ArrayList<CategoryParentItemList> fetchResponse(String result)
{
ArrayList<CategoryParentItemList> listParent = new ArrayList<>();
if (!result.equals(""))
{
try
{
JSONObject jsono = new JSONObject(result);
JSONArray jarray = jsono.getJSONArray("SBL");
CategoryParentItemList parent;
for (int i = 0; i < jarray.length(); i++)
{
ArrayList<CategoryChildListItem> childrens = new ArrayList<>();
childrens.clear();
CategoryChildListItem child;
JSONObject object = jarray.getJSONObject(i);
//System.out.println("SCI: " + object.getInt("SubCategoryID"));
//System.out.println("SCN: " + object.getString("SubCategoryName"));
JSONArray subItemArray = object.getJSONArray("SubCategoryItemList");
if (subItemArray.length() > 0)
{
for (int j = 0; j < subItemArray.length(); j++)
{
JSONObject subItemObject = subItemArray.getJSONObject(j);
String strItemName = subItemObject.getString("ItemName");
String strDefaultPrice = subItemObject.getString("DefaultPrice");
child = new CategoryChildListItem(strItemName, strDefaultPrice);
childrens.add(child);
//Log.i("strItemName", strItemName);
//Log.i("strDefaultPrice", strDefaultPrice);
}
parent = new CategoryParentItemList(object.getString("SubCategoryName"),childrens);
listParent.add(parent);
}
}
}
catch (JSONException e)
{
e.printStackTrace();
}
}
return listParent;
}
}
CategoryListItemAdaptor.java
public class CategoryItemListAdapter extends BaseExpandableListAdapter{
private Context context;
public static int totalCounter=0;
private ArrayList<CategoryParentItemList> listParent;
static class ViewHolderGroup {
public TextView lblSubCategoryName;
}
static class ViewHolderChild {
public TextView lblItemName;
public TextView lblDefualtPrice;
public TextView lblQty;
public ImageButton imgPlus;
public ImageButton imgMinus;
}
public CategoryItemListAdapter(Context context, ArrayList<CategoryParentItemList> listParent) {
super();
this.context = context;
this.listParent = listParent;
}
#Override
public int getGroupCount() {
return listParent.size();
}
#Override
public int getChildrenCount(int groupPosition) {
ArrayList<CategoryChildListItem> ch = listParent.get(groupPosition).getChildList();
return ch.size();
}
#Override
public Object getGroup(int groupPosition) {
return listParent.get(groupPosition);
}
#Override
public Object getChild(int groupPosition, int childPosition) {
ArrayList<CategoryChildListItem> ch = listParent.get(groupPosition).getChildList();
return ch.get(childPosition);
}
#Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
#Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
#Override
public boolean hasStableIds() {
return false;
}
#Override
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
//CategoryParentItemList parentItem = (CategoryParentItemList)listParent.get(groupPosition);
CategoryParentItemList parentItem = (CategoryParentItemList) getGroup(groupPosition);
ViewHolderGroup holderGroup;
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.group_header, null);
holderGroup = new ViewHolderGroup();
holderGroup.lblSubCategoryName = (TextView) convertView.findViewById(R.id.tvItemName);
convertView.setTag(holderGroup);
} else {
holderGroup = (ViewHolderGroup) convertView.getTag();
}
holderGroup.lblSubCategoryName.setText(parentItem.getSubCategoryName());
return convertView;
}
#Override
public View getChildView(int groupPosition,int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
//final CategoryParentItemList parentItem = (CategoryParentItemList) listParent.get(groupPosition);
//final CategoryChildListItem childItem = (CategoryChildListItem) parentItem.getChildList().get(childPosition);
CategoryChildListItem childItem = (CategoryChildListItem) getChild(groupPosition, childPosition);
ViewHolderChild holder;
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.child_row, null);
holder = new ViewHolderChild();
holder.lblItemName = (TextView) convertView.findViewById(R.id.tvSubItemName);
holder.lblDefualtPrice = (TextView) convertView.findViewById(R.id.tvrRupees);
holder.lblQty = (TextView) convertView.findViewById(R.id.tvQty);
holder.imgPlus = (ImageButton) convertView.findViewById(R.id.imageButtonPlus);
holder.imgMinus = (ImageButton) convertView.findViewById(R.id.imageButtonMinus);
convertView.setTag(holder);
} else {
holder = (ViewHolderChild) convertView.getTag();
}
holder.lblItemName.setText(childItem.getSubItemName());
holder.lblDefualtPrice.setText(childItem.getDefaultPrice());
int tmpCount = Integer.parseInt(holder.lblQty.getText().toString());
holder.imgPlus.setOnClickListener(new ClickUpdateListener(childItem,holder, tmpCount));
holder.imgMinus.setOnClickListener(new ClickUpdateListener(childItem,holder, tmpCount));
return convertView;
}
#Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
#Override
public boolean areAllItemsEnabled() {
return true;
}
public static int getTotalCounter() {
return totalCounter;
}
private class ClickUpdateListener implements View.OnClickListener {
ViewHolderChild holder;
public CategoryChildListItem childItem;
int counter = 0;
String counterMin;
public ClickUpdateListener(CategoryChildListItem childItem,ViewHolderChild holder, int cnt) {
this.childItem = childItem;
this.holder = holder;
this.counter = cnt;
}
#Override
public void onClick(View v) {
if(v.getId() == R.id.imageButtonPlus) {
counter = counter + 1;
totalCounter+=1;
System.out.println(childItem.getSubItemName()+" : "+childItem.getDefaultPrice() + ": C+ :" + counter);
holder.lblQty.setText(String.format("%d", counter));
notifyDataSetChanged();
}
if(v.getId() == R.id.imageButtonMinus){
counterMin = (String) holder.lblQty.getText();
counter = Integer.parseInt(counterMin.toString().trim());
counterMin = null;
if(counter > 0) {
counter = counter - 1;
totalCounter-=1;
System.out.println(childItem.getSubItemName()+" : "+childItem.getDefaultPrice() + ": C- :" + counter);
holder.lblQty.setText(String.format("%d", counter));
notifyDataSetChanged();
}else{
Toast.makeText(context,"Qty Zero",Toast.LENGTH_SHORT).show();
}
}
}
}
}

Not creating arraylist Object Class from JSON in fragment (Android)

I have this fragment class that is showed when an element is selected in a navigation drawer:
public class RecibidosFragment extends Fragment {
public ExpandListAdapterMensaje ExpAdapter;
public ArrayList<ChildMensaje> ListChild=null;
public ArrayList<Mensaje> ListMensajes=null;
public ExpandableListView ExpandList;
public ProgressDialog dialog;
public ArrayList<ArrayList<ChildMensaje>> ListChildXXXXXXXXX = null;
TextView tv;
Context mContext;
/**
* Returns a new instance of this fragment for the given section number.
*/
public static RecibidosFragment newInstance() {
RecibidosFragment fragment = new RecibidosFragment();
return fragment;
}
public RecibidosFragment() {
}
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View rootView = inflater.inflate(R.layout.fragment_recibidos, container,
false);
mContext = container.getContext();
tv = (TextView)rootView.findViewById(R.id.textView);
tv.setText(cargartodo());
ExpandList=(ExpandableListView)rootView.findViewById(R.id.expandableListView2);
ListMensajes = new ArrayList<Mensaje>();
ListChild = new ArrayList<ChildMensaje>();
ListChildXXXXXXXXX = new ArrayList<ArrayList<ChildMensaje>>();
return rootView;
}
#Override
public void onAttach(Activity activity) {
super.onAttach(activity);
((menu_mensajes) activity).onSectionAttached(1);
}
public String cargartodo(){
String arreglo = loadJSONFromFile();
arreglo = "[" + arreglo+ "]";
Mensaje men =null;
ChildMensaje chmen=null;
try {
ArrayList<Mensaje> list = new ArrayList<Mensaje>();
ArrayList<ChildMensaje> ch_list;
JSONArray jsonArray = new JSONArray(arreglo);
JSONObject jsonObject2 = jsonArray.getJSONObject(0);
if(jsonObject2.optString("success").equals("0")){
arreglo="No tiene mensajes recibidos.";
}else {
for (int i = 0; i < jsonArray.length(); i++) {
arreglo="inside5";
JSONObject jsonObject = jsonArray.getJSONObject(i);
men = new Mensaje(jsonObject.optString("asunto"), jsonObject.optString("origen"), jsonObject.optString("fecha"));
ListMensajes.add(men);
chmen = new ChildMensaje(jsonObject.optString("mensaje"));
ListChild.add(chmen);
ListChildXXXXXXXXX.add(ListChild);
ExpAdapter = new ExpandListAdapterMensaje(mContext, ListMensajes, ListChildXXXXXXXXX);
ExpandList.setAdapter(ExpAdapter);
}}
} catch (JSONException e) {
e.printStackTrace();
}
return arreglo;
}
public String loadJSONFromFile() {
String json = null;
try {
//
FileInputStream is = mContext.openFileInput("mensajes.json");
int size = is.available();
byte[] buffer = new byte[size];
is.read(buffer);
is.close();
json = new String(buffer, "UTF-8");
} catch (IOException ex) {
ex.printStackTrace();
return null;
}
return json;
}
}
With :
public class ChildMensaje {
public String mensaje;
public ChildMensaje(){}
public ChildMensaje(String mensaje){
this.mensaje=mensaje;
}
public String getMensaje() {
return mensaje;
}
public void setMensaje(String mensaje) {
this.mensaje = mensaje;
}
}
public class ExpandListAdapterMensaje extends BaseExpandableListAdapter {
public Context context;
public ArrayList<Mensaje> noticiasArrayList;
public ArrayList<ArrayList<ChildMensaje>> ListChild;
public ExpandListAdapterMensaje(Context context, ArrayList<Mensaje> noticiasArrayList,ArrayList<ArrayList<ChildMensaje>> ListChild) {
this.context = context;
this.noticiasArrayList = noticiasArrayList;
this.ListChild=ListChild;
}
#Override
public ChildMensaje getChild(int groupPosition, int childPosition) {
return ListChild.get(groupPosition).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) {
ChildMensaje child = getChild(groupPosition, childPosition);
ViewHolder holder=null;
if (convertView == null) {
LayoutInflater infalInflater = (LayoutInflater) context
.getSystemService(context.LAYOUT_INFLATER_SERVICE);
convertView = infalInflater.inflate(R.layout.child_row, null);
holder=new ViewHolder();
holder.mensaje=(TextView)convertView.findViewById(R.id.mensaje);
convertView.setTag(holder);
}
else {
holder=(ViewHolder)convertView.getTag();
}
holder.mensaje.setText(child.getMensaje());
return convertView;
}
#Override
public int getChildrenCount(int groupPosition) {
return ListChild.get(groupPosition).size();
}
#Override
public Mensaje getGroup(int groupPosition) {
return noticiasArrayList.get(groupPosition);
}
#Override
public int getGroupCount() {
return noticiasArrayList.size();
}
#Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
#Override
public View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
Mensaje not = (Mensaje) getGroup(groupPosition);
ViewHolder holder= null;
if (convertView == null) {
LayoutInflater inf = (LayoutInflater) context
.getSystemService(context.LAYOUT_INFLATER_SERVICE);
convertView = inf.inflate(R.layout.list_row, null);
holder=new ViewHolder();
holder.asunto=(TextView)convertView.findViewById(R.id.titulo);
holder.fecha=(TextView)convertView.findViewById(R.id.fecha);
holder.origen=(TextView)convertView.findViewById(R.id.dirigido);
convertView.setTag(holder);
}
else{
holder=(ViewHolder)convertView.getTag();
}
holder.asunto.setText(not.getAsunto());
holder.fecha.setText(not.getFecha());
holder.origen.setText(not.getOrigen());
return convertView;
}
#Override
public boolean hasStableIds() {
return true;
}
#Override
public boolean areAllItemsEnabled()
{
return true;
}
#Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return true;
}
static class ViewHolder{
TextView asunto, fecha,origen, mensaje;
}
}
public class Mensaje {
public String origen;
public String asunto;
public String getFecha() {
return fecha;
}
public void setFecha(String fecha) {
this.fecha = fecha;
}
public String getOrigen() {
return origen;
}
public void setOrigen(String origen) {
this.origen = origen;
}
String fecha;
ArrayList<ChildMensaje> Items;
public Mensaje() {
}
public Mensaje(String asunto, String origen, String fecha) {
this.asunto = asunto;
this.fecha = fecha;
this.origen = origen;
}
public String getAsunto() {
return asunto;
}
public void setAsunto(String asunto) {
this.asunto = asunto;
}
public ArrayList<ChildMensaje> getItems() {
return Items;
}
public void setItems(ArrayList<ChildMensaje> Items) {
this.Items = Items;
}
}
My issue just appear when I'm running the app. Just in the moment that I clicked the button for go to this fragment a message appear, The aplication must to be stopped and crashed. I was just commenting the code line per line and I just know that the code is executed until that line ->
ListMensajes.add(men);
So, what I'm doing wrong ?? It has some solution ??
Thanks ;)

Ray's comment is right. It seems that the error occurs in your onCreateView() method.
tv.setText(cargartodo());
...
ListMensajes = new ArrayList<Mensaje>();
cargartodo() was called before the ListMensajes was initialized. In the cargartodo() method, ListMensajes.add() will throw a NullPointerException.
Change public ArrayList<Mensaje> ListMensajes=null to public ArrayList<Mensaje> ListMensajes= new ArrayList<Mensaje> , it may work.

Expandable listview isn't expanding

Hi need to prepare screen like this
Here is my code of expandable list view
Adapter class: NewAdapter.java
public class NewAdapter extends BaseExpandableListAdapter {
public ArrayList<ParentBean> groupItem;
ArrayList<String> tempChild;
public ArrayList<Object> Childtem = new ArrayList<Object>();
public LayoutInflater minflater;
public Activity activity;
public NewAdapter(ArrayList<ParentBean> grList, ArrayList<Object> 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<String>) 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;
}
}
}
Here is my activity : MainActivity.java
public class MainActivity extends ExpandableListActivity implements
OnChildClickListener {
Context context;
ArrayList<ParentBean> groupItem = new ArrayList<ParentBean>();
ArrayList<Object> childItem = new ArrayList<Object>();
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<String> child = new ArrayList<String>();
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;
}
}
I am not sure but I have used a button for select, because of that expandable list losing focus and is not showing childrow when click on the listitem...

Try making the select button non-focusable in the xml.

We Keep Coding

Java is a programming language and computing platform first released by Sun Microsystems in 1995.

Making my ExpandableListView child clickable is not working? - java

Related

Problem with an ExpandableList with 3 level

Expandale list view's Child view's issue

How to fetch the value from custom ExpandableList Adapter class and set into previous fragment of UI component

Not creating arraylist Object Class from JSON in fragment (Android)

Expandable listview isn't expanding

Categories

Resources