Android 带有JSON数据的ExpandableListView
我正试图展示一个站在桌上的小组，以获得联赛冠军 我有3组：A组，B组，C组 对于每个小组，我有4支球队：第一队、第二队、第三队、第四队，以及他们的得分和比赛次数 我已经获取了JSON格式的数据，并成功地将ArrayList中的数据传递给ExpandableListView适配器 我已经在groupview方法上扩展了父行布局，因此它显示A组、B组和C组，如下所示： 现在，在小组赛上，我想放大这个自定义布局，其中显示id、球队名称、比赛、4支球队的积分： 这是我的模型课：Android 带有JSON数据的ExpandableListView,android,json,expandablelistview,Android,Json,Expandablelistview,我正试图展示一个站在桌上的小组，以获得联赛冠军 我有3组：A组，B组，C组 对于每个小组，我有4支球队：第一队、第二队、第三队、第四队，以及他们的得分和比赛次数 我已经获取了JSON格式的数据，并成功地将ArrayList中的数据传递给ExpandableListView适配器 我已经在groupview方法上扩展了父行布局，因此它显示A组、B组和C组，如下所示： 现在，在小组赛上，我想放大这个自定义布局，其中显示id、球队名称、比赛、4支球队的积分： 这是我的模型课： public class
public class Standings_data {
String id;
String groupid;
String team;
public String getTeam() {
return team;
}
public void setTeam(String team) {
this.team = team;
}
public String getGroupid() {
return groupid;
}
public void setGroupid(String groupid) {
this.groupid = groupid;
}
String p;
String pts;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getP() {
return p;
}
public void setP(String p) {
this.p = p;
}
public String getPts() {
return pts;
}
public void setPts(String pts) {
this.pts = pts;
}
}
public class StandingFragment extends Fragment implements ConnectivityReceiver.ConnectivityReceiverListener,
SwipeRefreshLayout.OnRefreshListener{
public CoordinatorLayout coordinatorLayout;
public boolean isConnected;
public static final String NA = "NA";
public RecyclerView recycler_post;
public PostAdapter7 adapter;
public ProgressDialog progressDialog;
ArrayList<Standings_data> post_array = new ArrayList<>();
public SwipeRefreshLayout swipeRefreshLayout;
InterstitialAd mInterstitialAd;
private InterstitialAd interstitial;
public ExpandableListView elv;
@Override
public void onPrepareOptionsMenu(Menu menu) {
super.onPrepareOptionsMenu(menu);
}
public StandingFragment() {
// Required empty public constructor
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setHasOptionsMenu(true);
checkConnectivity();
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View v=inflater.inflate(R.layout.fragment_standing,null);
// toolbar = (Toolbar) v.findViewById(R.id.toolbar_viewpager);
// searchToolbar = (Toolbar) v.findViewById(R.id.toolbar_search);
coordinatorLayout = (CoordinatorLayout) v.findViewById(R.id.coordinatorLayout);
elv = (ExpandableListView)v.findViewById(R.id.elv);
elv.setOnGroupExpandListener(onGroupExpandListenser);
swipeRefreshLayout = (SwipeRefreshLayout) v.findViewById(R.id.swipe_refresh);
swipeRefreshLayout.setOnRefreshListener(this);
swipeRefreshLayout.setColorSchemeResources(R.color.colorGreen,R.color.black,R.color.colorRed);
try {
getData();
} catch (Exception e) {
e.printStackTrace();
}
return v;
}
ExpandableListView.OnGroupExpandListener onGroupExpandListenser = new ExpandableListView.OnGroupExpandListener() {
int previousGroup =-1;
@Override
public void onGroupExpand(int groupPosition) {
if(groupPosition!= previousGroup)
elv.collapseGroup(previousGroup);
previousGroup = groupPosition;
}
};
public void getData() throws Exception {
if (checkConnectivity()){
try {
swipeRefreshLayout.setRefreshing(true);
getAllPosts();
} catch (Exception e) {
e.printStackTrace();
}
}else {
swipeRefreshLayout.setRefreshing(false);
// getAllPosts();
showSnack();
}
}
public boolean checkConnectivity() {
return ConnectivityReceiver.isConnected();
}
public void showSnack() {
Snackbar.make(coordinatorLayout, getString(R.string.no_internet_connected), Snackbar.LENGTH_INDEFINITE)
.setAction(getString(R.string.settings), new View.OnClickListener() {
@Override
public void onClick(View view) {
startActivity(new Intent(Settings.ACTION_WIRELESS_SETTINGS));
}
}).setActionTextColor(Color.RED)
.show();
}
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
inflater.inflate(R.menu.menu_main, menu);
super.onCreateOptionsMenu(menu,inflater);
}
@Override
public void onResume() {
super.onResume();
// Toast.makeText(getContext(),"u have resumed the app",Toast.LENGTH_SHORT).show();
AppController.getInstance().setConnectivityReceiver(this);
}
@Override
public void onRefresh() {
try {
// Toast.makeText(getContext(),"u have refreshed the app",Toast.LENGTH_SHORT).show();
//when u swipe the app..the getdata method is invoked !
getData();
} catch (Exception e) {
e.printStackTrace();
}
}
@Override
public void onPause() {
super.onPause();
// Toast.makeText(getContext(),"u have paused the app",Toast.LENGTH_SHORT).show();
}
@Override
public void onNetworkChange(boolean inConnected) {
this.isConnected = inConnected;
// Toast.makeText(getContext(),"the app network have been changed",Toast.LENGTH_SHORT).show();
}
public void getAllPosts() throws Exception{
String TAG = "POSTS_STANDINGS";
String url = Constants.STANDINGS_URL;
StringRequest jsonObjectRequest = new StringRequest(Request.Method.GET, url, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
Log.i("response_standings", response);
parseJson(response);
progressDialog.dismiss();
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
try {
progressDialog.dismiss();
swipeRefreshLayout.setRefreshing(false);
Log.e("error", "" +error.getMessage());
}catch (NullPointerException e)
{
swipeRefreshLayout.setRefreshing(false);
e.printStackTrace();
}
}
});
AppController.getInstance().addToRequestQueue(jsonObjectRequest, TAG);
progressDialog = new ProgressDialog(getActivity());
progressDialog.setMessage("الرجاء الانتظار..");
progressDialog.show();
}
public void parseJson(String response){
try {
JSONArray array = new JSONArray(response);
JSONObject jsonObject =null;
post_array.clear();
Standings_data p;
for(int i=0 ; i<array.length() ; i++)
{
jsonObject=array.getJSONObject(i);
String id_team=jsonObject.getString("id_team");
String groupid= jsonObject.getString("name");
String played=jsonObject.getString("played");
String points=jsonObject.getString("points");
p = new Standings_data();
p.setId(id_team);
p.setGroupid(groupid);
p.setP(played);
p.setPts(points);
post_array.add(p);
//realmHelper.save(p);
}
}
catch (JSONException e) {
swipeRefreshLayout.setRefreshing(false);
e.printStackTrace();
//Log.d("error", e.getMessage());
}
adapter = new PostAdapter7(getContext(),post_array );
elv.setAdapter(adapter);
swipeRefreshLayout.setRefreshing(false);
}
}
public class PostAdapter7 extends BaseExpandableListAdapter{
public Context mContext;
public ArrayList<Standings_data> filtered_items = new ArrayList<>();
// ItemFilter mFilters = new ItemFilter();
public PostAdapter7(Context mContext, ArrayList<Standings_data> postList) {
this.mContext = mContext;
this.filtered_items = postList;
}
@Override
public int getGroupCount() {
return filtered_items.size();
}
@Override
public int getChildrenCount(int groupPosition) {
return 0;
// not sure about the return value
}
@Override
public Object getGroup(int groupPosition) {
return null;
// not sure about the return value
}
@Override
public Object getChild(int groupPosition, int childPosition) {
return null;
// not sure about the return value
}
@Override
public long getGroupId(int i) {
return i;
}
@Override
public long getChildId(int i, int i2) {
return 0;
}
@Override
public boolean hasStableIds() {
return false;
}
@Override
public View getGroupView(int i, boolean isExpanded, View view, ViewGroup parent) {
final Standings_data post = filtered_items.get(i);
if(view ==null)
{
LayoutInflater inflater =(LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = inflater.inflate(R.layout.parent_row,null);
}
TextView groupID = (TextView)view.findViewById(R.id.txtgroupid);
groupID.setText(post.getGroupid());
return view;
}
@Override
public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View view, ViewGroup parent) {
// i have no idea what to do here so the four team are displayed from arraylist for each group
return view; }
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return false;
}
}
这是一个简单的测试，据我所知，您正在获取主要组a、组B、组C的儿童数据 因此，您的post_数组用于保存团队数据，因此每个组都有一个用于其子团队的post_数组 必须为组A、组B、组C创建一个arrayList 和HashMap为您的孩子团队提供的每一组HashMap为您提供post_数组 例如： 在创建时将其放在顶部外侧
List<String> listDataGroup = new ArrayList<String>();
HashMap<String, ArrayList<Standings_data>> listDataTeams = new HashMap<String, ArrayList<Standings_data>>();
//adding childs data (Teams) like this
listDataTeams.put(listDataGroup.get(0), post_array); // Group, Child data(Teams)
listDataTeams.put(listDataGroup.get(1), post_array);
listDataTeams.put(listDataGroup.get(2), post_array);
public class PostAdapter7 extends BaseExpandableListAdapter{
public Context mContext;
List<String> listDataGroup ;
HashMap<String, ArrayList<Standings_data>> listDataTeams;
// ItemFilter mFilters = new ItemFilter();
public PostAdapter7(Context mContext, List<String> listDataGroup , HashMap<String, ArrayList<Standings_data>> listDataTeams) {
this.mContext = mContext;
this.listDataGroup = listDataGroup;
this.listDataTeams = listDataTeams;
}
@Override
public int getGroupCount() {
return listDataGroup.size();
}
@Override
public int getChildrenCount(int groupPosition) {
return this.listDataTeams.get(this.listDataGroup.get(groupPosition)).size();
}
@Override
public Object getGroup(int groupPosition) {
return listDataGroup.get(groupPosition);
}
@Override
public Object getChild(int groupPosition, int childPosition) {
return this.listDataTeams.get(this.listDataGroup.get(groupPosition)).get();
}
@Override
public long getGroupId(int i) {
return i;
}
@Override
public long getChildId(int i, int i2) {
return i2;
}
@Override
public boolean hasStableIds() {
return false;
}
@Override
public View getGroupView(int i, boolean isExpanded, View view, ViewGroup parent) {
// this is for inflate Groups view and display data for it from listDataGroup array list
if(view ==null)
{
LayoutInflater inflater =(LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = inflater.inflate(R.layout.parent_row,null);
}
//here display your data for each Group
return view;
}
@Override
public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View view, ViewGroup parent) {
// this is for inflate childs (Team view replace child_row with yours) and display data for it from listDataTeams HashMap
if(view ==null)
{
LayoutInflater inflater =(LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
view = inflater.inflate(R.layout.child_row,null);
}
//here get your data for each team and set it to your textview
final Standings_data teamData = (Standings_data)getChild(groupPosition,childPosition);
//and then in your tv display data
yourTextView.setText(teamData.getGroupid());
return view;
}
@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
return false;
}
}
Collections.sort(post_array, new Comparator<Standings_data>(){
public int compare(Standings_data s1, Standings_data s2) {
return s1.getpts().compareToIgnoreCase(s2.getPts());
}
});
Collections.reverse(post_array);
在将post_数组添加到listDataTeams哈希映射之前，您先输入了这段代码。您是否可以将json响应作为静态数据输入组A、组B、组C，而不是从响应中获取这些数据？如果不是静态的，请张贴完整的response@AhmedMousa他们是静态的，因为这次锦标赛只有这3个小组。所以我会发布一个答案，这将有助于你，但你的回答并不能完成你发布的一系列团队。。但是你怎么知道这个数组是哪个组的呢？我已经复制了你的代码，并在布局充气器之后在getgroupview和getchildview中初始化了我的文本视图。但是，如何从Listdatagroups和listDataTeams获取数据，以便将它们正确设置为父行和子行的TextView？我已经为getGroupView完成了这项工作，并且工作正常：TextView tv=TextView.findViewByIdR.id.txtgroupid；tv.setTextlistDataGroup.geti；但是如何为儿童视图做呢？完美的老板！！你救了我一天，这正是我想做的。我感谢你的努力和感谢。我还有一个问题，我怎样才能把得分最高的队伍排在榜首呢？真是太棒了。很抱歉，还有一个问题。我正在使用SwiperFresh，所以在刷卡时一切都很顺利，但expandablelistview正在复制，所以它们是3组a、b、c，现在它们是6组。如何在应用程序中一次性添加a、b、c组，以使它们在swipingLet us时不受影响。
Collections.sort(post_array, new Comparator<Standings_data>(){
public int compare(Standings_data s1, Standings_data s2) {
return s1.getpts().compareToIgnoreCase(s2.getPts());
}
});
Collections.reverse(post_array);