我正在开发网球应用程序，我想在这里展示现场比分比赛的明智做法（Expandable Recyclerview），我在这里添加了一个屏幕截图
我将此库用于可扩展的recyclerview HERE，我不知道如何在可扩展中添加自定义的子级和父级数据。
我复制了这个样本，但我不知道该怎么做。我解析此json请参见HERE
if (responseString != null) {
try {
String tournament = null, home_player = null, home_player_point = null, away_player = null, away_player_point = null,HomeOne=null,AwayOne=null,HomeTwo=null,AwayTwo=null,HomeThree=null,AwayThree=null,HomeFour=null,AwayFour=null,HomeFive=null,AwayFive=null;
JSONObject MainObject = new JSONObject(responseString).getJSONObject("list").getJSONObject("Sport").getJSONObject("2").getJSONObject("Matchday").getJSONObject("2016-08-20").getJSONObject("Match");
// Log.d("", "onPostExecute: jObject = " + MainObject);
Iterator<String> keys = MainObject.keys();
while (keys.hasNext()) {
String MatchNoKey = keys.next();
Log.v("list MatchNoKey = ", MatchNoKey);
JSONObject MatchNoObj;
if(MainObject.get(MatchNoKey) instanceof JSONObject) {
MatchNoObj = MainObject.getJSONObject(MatchNoKey);
String id = MatchNoObj.getString("id");
String leagueType = MatchNoObj.getString("leagueType");
String startTime = MatchNoObj.getString("startTime");
String status = MatchNoObj.getString("status");
String leagueCode = MatchNoObj.getString("leagueCode");
Log.v("details", "id = " + id + ", " + "leagueType = " + leagueType + ", " + "startTime = " + startTime + ", " + "status = " + status + ", " + "leagueCode = " + leagueCode );
// after complete matchno object info
// now we get the home Object
if(MatchNoObj.has("Home")) {
JSONObject HomeObj = MatchNoObj.getJSONObject("Home");
Log.d(TAG, "onPostExecute: Home pass");
String id_home = HomeObj.getString("id");
home_player = HomeObj.getString("name");
String serve = HomeObj.getString("serve");
Log.v("details", "id_home = " + id_home + ", " + "player0ne = " + home_player + ", " + "serve = " + serve );
}
// Away Object
if(MatchNoObj.has("Away")){
JSONObject AwayObj = MatchNoObj.getJSONObject("Away");
Log.d(TAG, "onPostExecute: Away pass");
String id_away = AwayObj.getString("id");
away_player = AwayObj.getString("name");
String serve = AwayObj.getString("serve");
Log.v("details", "id_away = " + id_away + ", " + "playerTwo = " + away_player + ", " + "serve = " + serve );
}
// Result object
if(MatchNoObj.has("Results")){
JSONObject ResultObj = MatchNoObj.getJSONObject("Results");
Log.d(TAG, "onPostExecute: ResultObj pass");
if (ResultObj.has("1")){
JSONObject leagueObj = ResultObj.getJSONObject("league");
String CurrentScore = leagueObj.getString("value");
String[] score = CurrentScore.split("-");
home_player_point = score[0];
away_player_point = score[1];
}
if (ResultObj.has("Period")){
JSONObject PeriodObj = ResultObj.getJSONObject("league");
Iterator<String> Periodkeys = PeriodObj.keys();
while (Periodkeys.hasNext()) {
String innerkey = Periodkeys.next();
Log.v("list key", innerkey);
if(PeriodObj.get(innerkey) instanceof JSONObject) {
JSONObject innerJObject = PeriodObj.getJSONObject(innerkey);
String current_score = innerJObject.getString("value");
String tiebreak = innerJObject.getString("tiebreak");
Log.v("details ", "current_score = " + current_score + ", " + "tiebreak = " + tiebreak );
} else if (PeriodObj.get(innerkey) instanceof String){
String value = PeriodObj.getString("type");
Log.v("key = type", "value = " + value);
}
}
}
Log.v("details information", "home_player_point = "+home_player_point+ ", " + "away_player_point = " + away_player_point);
}
// Information Object
if(MatchNoObj.has("Information")){
JSONObject InfoObj = MatchNoObj.getJSONObject("Information");
Log.d(TAG, "onPostExecute: InfoObj pass");
String shortName = InfoObj.getString("shortName");
String round = InfoObj.getString("round");
String note = InfoObj.getString("note");
String leagueName=null;
if (InfoObj.has("league")){
JSONObject leagueObj = InfoObj.getJSONObject("league");
tournament = leagueObj.getString("name")+" "+shortName;
}
Log.v("details information", "tournament = "+tournament+ ", " + "round = " + round + ", " + "note = " + note );
}
} else if (MainObject.get(MatchNoKey) instanceof String){
MatchNoObj = MainObject.getJSONObject(MatchNoKey);
String value = MatchNoObj.getString(MatchNoKey);
Log.v("key = type", "value = " + value);
}
}
progressBar.setVisibility(View.INVISIBLE);
} catch (JSONException e) {
e.printStackTrace();
}
} else {
progressBar.setVisibility(View.INVISIBLE);
Toast.makeText(getApplicationContext(), "Couldn't get Data from server", Toast.LENGTH_SHORT).show();
}
}
这是我的SAMPLE
我不知道如何在其中添加子数据。因为我的孩子有多个数据。
Ingredient beef = new Ingredient("beef");
Ingredient cheese = new Ingredient("cheese");
Ingredient salsa = new Ingredient("salsa");
Ingredient tortilla = new Ingredient("tortilla");
Ingredient ketchup = new Ingredient("ketchup");
Ingredient bun = new Ingredient("bun");
Recipe taco = new Recipe("taco", Arrays.asList(beef, cheese, salsa, tortilla));
Recipe quesadilla = new Recipe("quesadilla", Arrays.asList(cheese, tortilla));
Recipe burger = new Recipe("burger", Arrays.asList(beef, cheese, ketchup, bun));
final List<Recipe> recipes = Arrays.asList(taco, quesadilla, burger);
RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recyclerview);
mAdapter = new RecipeAdapter(this, recipes);
mAdapter.setExpandCollapseListener(new ExpandableRecyclerAdapter.ExpandCollapseListener() {
@Override
public void onListItemExpanded(int position) {
Recipe expandedRecipe = recipes.get(position);
String toastMsg = getResources().getString(R.string.expanded, expandedRecipe.getName());
Toast.makeText(MainActivity.this,
toastMsg,
Toast.LENGTH_SHORT)
.show();
}
@Override
public void onListItemCollapsed(int position) {
Recipe collapsedRecipe = recipes.get(position);
String toastMsg = getResources().getString(R.string.collapsed, collapsedRecipe.getName());
Toast.makeText(MainActivity.this,
toastMsg,
Toast.LENGTH_SHORT)
.show();
}
});
recyclerView.setAdapter(mAdapter);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
new GetLiveData().execute();
}
@Override
protected void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
mAdapter.onSaveInstanceState(outState);
}
@Override
protected void onRestoreInstanceState(@NonNull Bundle savedInstanceState) {
super.onRestoreInstanceState(savedInstanceState);
mAdapter.onRestoreInstanceState(savedInstanceState);
}
这是我的POJO
公共课程LiveScore {
String tournament = " ", home_player = " ", home_player_point = " ", away_player = " ", away_player_point = " ", home_Round1 = " ", home_Round2 = " ", home_Round3 = " ", home_Round4 = " ", home_Round5 = " ",away_Round1 = " ", away_Round2 = " ", away_Round3 = " ", away_Round4 = " ", away_Round5 = " ", League = " ", Status = " ";
public LiveScore(String tournament, String home_player, String home_player_point, String away_player, String away_player_point, String home_Round1, String home_Round2, String home_Round3, String home_Round4, String home_Round5, String away_Round1, String away_Round2, String away_Round3, String away_Round4, String away_Round5, String league, String Status) {
this.tournament = tournament;
this.home_player = home_player;
this.home_player_point = home_player_point;
this.away_player = away_player;
this.away_player_point = away_player_point;
this.home_Round1 = home_Round1;
this.home_Round2 = home_Round2;
this.home_Round3 = home_Round3;
this.home_Round4 = home_Round4;
this.home_Round5 = home_Round5;
this.away_Round1 = away_Round1;
this.away_Round2 = away_Round2;
this.away_Round3 = away_Round3;
this.away_Round4 = away_Round4;
this.away_Round5 = away_Round5;
this.League = league;
this.Status = Status;
}
public String getStatus() {
return Status;
}
public void setStatus(String status) {
Status = status;
}
public String getTournament() {
return tournament;
}
public void setTournament(String tournament) {
this.tournament = tournament;
}
public String getHome_player() {
return home_player;
}
public void setHome_player(String home_player) {
this.home_player = home_player;
}
public String getHome_player_point() {
return home_player_point;
}
public void setHome_player_point(String home_player_point) {
this.home_player_point = home_player_point;
}
public String getAway_player() {
return away_player;
}
public void setAway_player(String away_player) {
this.away_player = away_player;
}
public String getAway_player_point() {
return away_player_point;
}
public void setAway_player_point(String away_player_point) {
this.away_player_point = away_player_point;
}
public String getHome_Round1() {
return home_Round1;
}
public void setHome_Round1(String home_Round1) {
this.home_Round1 = home_Round1;
}
public String getHome_Round2() {
return home_Round2;
}
public void setHome_Round2(String home_Round2) {
this.home_Round2 = home_Round2;
}
public String getHome_Round3() {
return home_Round3;
}
public void setHome_Round3(String home_Round3) {
this.home_Round3 = home_Round3;
}
public String getHome_Round4() {
return home_Round4;
}
public void setHome_Round4(String home_Round4) {
this.home_Round4 = home_Round4;
}
public String getHome_Round5() {
return home_Round5;
}
public void setHome_Round5(String home_Round5) {
this.home_Round5 = home_Round5;
}
public String getAway_Round1() {
return away_Round1;
}
public void setAway_Round1(String away_Round1) {
this.away_Round1 = away_Round1;
}
public String getAway_Round2() {
return away_Round2;
}
public void setAway_Round2(String away_Round2) {
this.away_Round2 = away_Round2;
}
public String getAway_Round3() {
return away_Round3;
}
public void setAway_Round3(String away_Round3) {
this.away_Round3 = away_Round3;
}
public String getAway_Round4() {
return away_Round4;
}
public void setAway_Round4(String away_Round4) {
this.away_Round4 = away_Round4;
}
public String getAway_Round5() {
return away_Round5;
}
public void setAway_Round5(String away_Round5) {
this.away_Round5 = away_Round5;
}
public String getLeague() {
return League;
}
public void setLeague(String league) {
League = league;
}
}
最佳答案
您可以使用此library来实现，有完整的示例here。
基本上，您将项目分为几部分：
class MySection extends StatelessSection {
String header;
List<MatchNoObj> list;
boolean expanded = true;
public MySection(String header, List<MatchNoObj> list) {
// call constructor with layout resources for this Section header and items
super(R.layout.section_header, R.layout.section_item);
this.myHeader = header;
this.myList = list;
}
@Override
public int getContentItemsTotal() {
return expanded? list.size() : 0;
}
@Override
public RecyclerView.ViewHolder getHeaderViewHolder(View view) {
return new HeaderViewHolder(view);
}
@Override
public void onBindHeaderViewHolder(RecyclerView.ViewHolder holder) {
final HeaderViewHolder headerHolder = (HeaderViewHolder) holder;
headerHolder.tvTitle.setText(title);
headerHolder.rootView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
expanded = !expanded;
headerHolder.imgArrow.setImageResource(
expanded ? R.drawable.ic_keyboard_arrow_up_black_18dp : R.drawable.ic_keyboard_arrow_down_black_18dp
);
sectionAdapter.notifyDataSetChanged();
}
});
}
@Override
public RecyclerView.ViewHolder getItemViewHolder(View view) {
// return a custom instance of ViewHolder for the items of this section
return new MyItemViewHolder(view);
}
@Override
public void onBindItemViewHolder(RecyclerView.ViewHolder holder, int position) {
MyItemViewHolder itemHolder = (MyItemViewHolder) holder;
// bind your view here
MatchNoObj matchNoObj = list.get(position);
itemHolder.tvItem.setText(matchNoObj.leagueName);
}
}
然后创建您的节的实例并设置您的适配器：
// Create an instance of SectionedRecyclerViewAdapter
SectionedRecyclerViewAdapter sectionAdapter = new SectionedRecyclerViewAdapter();
// Add your Sections
sectionAdapter.addSection(new MySection("Western Southern Open - Cincinnati", westernSouthernMatchList));
sectionAdapter.addSection(new MySection("US Open", usOpenMatchList));
// Set up your RecyclerView with the SectionedRecyclerViewAdapter
RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recyclerview);
recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
recyclerView.setAdapter(sectionAdapter);
关于android - 可扩展的Recyclerview自定义子工具问题，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/39220303/