Android 如何根据模型类在recyclerview适配器中的位置显示列表数组数据？
正如下面的json响应一样，我想在recyclerview中显示Android 如何根据模型类在recyclerview适配器中的位置显示列表数组数据？,android,json,arraylist,android-recyclerview,Android,Json,Arraylist,Android Recyclerview,正如下面的json响应一样，我想在recyclerview中显示poolquestions，以及与该poolquestion相关的答案。我已经为recyclerview定义了一个适配器，并为poolquestions和answers定义了一个模型类来保存json值。但我的问题是，当我要从adapter中的模型类提取数据时，所有的poolanswers都显示在所有父poolquestions中 这是我的json： { "data": [ { "pooltitle": "Wh
poolquestionspoolquestionpoolquestionspoolanswerspoolquestions{
"data": [
{
"pooltitle": "Who is the best Actor in India",
"pooldetails": [
{
"poolquestions": "Who is the best actor in Bollywood?",
"poolanswer": [
{
"answer": "Amir Khan",
"percent": 38
},
{
"answer": "Amitabh Bachhan",
"percent": 25
},
{
"answer": "Salman Khan",
"percent": 0
},
{
"answer": "Akshay Kumar",
"percent": 38
}
]
},
{
"poolquestions": "Who has most female fan following?",
"poolanswer": [
{
"answer": "Amitabh Bachhan",
"percent": 13
},
{
"answer": "Amir Khan",
"percent": 38
},
{
"answer": "Salman Khan",
"percent": 13
},
{
"answer": "Akshay Kumar",
"percent": 38
}
]
},
{
"poolquestions": "Who is most popular actor in social media?",
"poolanswer": [
{
"answer": "Amir Khan",
"percent": 27
},
{
"answer": "Amitabh Bachhan",
"percent": 36
},
{
"answer": "Salman Khan",
"percent": 18
},
{
"answer": "Akshay Kumar",
"percent": 18
}
]
}
]
}
],
"status": 1
}
private List<PollsData> pollDataArrayList;
private List<PollQstWithOptions> pollQSTOptionsList = new ArrayList<>();
if ("1".equalsIgnoreCase(status)) {
try {
JSONArray data = js.getJSONArray("data");
for (int i = 0; i < data.length(); i++) {
JSONObject detailsData = data.getJSONObject(i);
JSONArray pollQstArray = detailsData.getJSONArray("pooldetails");
for (int j = 0; j < pollQstArray.length(); j++) {
JSONObject poll = pollQstArray.getJSONObject(j);
String poolquestion_ = poll.getString("poolquestions");
pollDataArrayList = new ArrayList<>();
JSONArray poolanswerArray = poll.getJSONArray("poolanswer");
for (int k = 0; k < poolanswerArray.length(); k++) {
JSONObject pollOptions = poolanswerArray.getJSONObject(k);
String options = pollOptions.getString("answer");
int percent = pollOptions.getInt("percent");
PollsData pollDetails = new PollsData(options, percent);
pollDataArrayList.add(pollDetails);
}
PollQstWithOptions mPollQstWithOptions = new PollQstWithOptions(poolquestion_, pollDataArrayList);
pollQSTOptionsList.add(mPollQstWithOptions);
}
}
} catch (Exception e) {
e.printStackTrace();
}
mAdapter = new PollAdapter2(ActivityPollDetails.this, pollQSTOptionsList);
RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManager(ActivityPollDetails.this);
recyclerView.setLayoutManager(mLayoutManager);
recyclerView.setHasFixedSize(true);
recyclerView.setAdapter(mAdapter);
}
私有列表pollDataArrayList；
private List pollQSTOptionsList=new ArrayList（）；
如果（“1”。相等信号情况（状态））{
试一试{
JSONArray data=js.getJSONArray（“数据”）；
对于（int i=0；ipublic class PollAdapter2 extends RecyclerView.Adapter<PollAdapter2.MyViewHolder> {
private List<PollQstWithOptions> dataList;
Context context;
public class MyViewHolder extends RecyclerView.ViewHolder {
TextView txt_poll_question;
ProgressBar progress1;
LinearLayout mainLayout;
public MyViewHolder(View view) {
super(view);
txt_poll_question=(TextView)view.findViewById(R.id.txt_poll_question);
mainLayout=(LinearLayout)view.findViewById(R.id.mainLayout);
}
}
public PollAdapter2(Context mContext, List<PollQstWithOptions> dataList) {
this.dataList = dataList;
this.context=mContext;
}
@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext())
.inflate(R.layout.card_poll_qst_with_ans, parent, false);
MyViewHolder viewHolder = new MyViewHolder(v);
return viewHolder;
}
@Override
public void onBindViewHolder(final MyViewHolder holder, int position) {
final PollQstWithOptions poll = dataList.get(position);
holder.txt_poll_question.setText(poll.getPollQstName());
for(int i=0; i<dataList.size();i++){
PollQstWithOptions itemsData = dataList.get(i);
for(int j=0;j<itemsData.getOptionList().size();j++){
System.out.print("child pos:: "+j);
PollsData mPollsData = itemsData.getOptionList().get(j);
TextView text = new TextView(context);
text.setLayoutParams(new TableRow.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT));
text.setText(mPollsData.getAns1());
holder.mainLayout.addView(text);
}
}
}
@Override
public int getItemCount() {
return dataList.size();
}
}
公共类PollAdapter2扩展了RecyclerView.Adapter{
私有列表数据列表；
语境；
公共类MyViewHolder扩展了RecyclerView.ViewHolder{
TextView txt_poll_问题；
ProgressBar progress1；
线性布局主布局；
公共MyViewHolder（视图）{
超级（视图）；
txt_poll_question=（TextView）view.findViewById（R.id.txt_poll_question）；
mainLayout=（LinearLayout）view.findViewById（R.id.mainLayout）；
}
}
公共轮询适配器2（上下文mContext、列表数据列表）{
this.dataList=dataList；
this.context=mContext；
}
@凌驾
公共MyViewHolder onCreateViewHolder（视图组父级，int-viewType）{
视图v=LayoutInflater.from（parent.getContext（））
.充气（R.layout.card_poll_qst__ans，parent，false）；
MyViewHolder viewHolder=新的MyViewHolder（v）；
返回视图持有者；
}
@凌驾
公共无效onBindViewHolder（最终MyViewHolder，内部位置）{
final PollQstWithOptions poll=dataList.get（位置）；
holder.txt_poll_question.setText（poll.getPollQstName（））；
for（int i=0；iRecyclerView
回收视图，因此得名。当您尝试将视图添加到mainLayout
时，请确保首先删除所有视图，因为如果已创建视图，则它包含以前添加的视图。这就是为什么您会看到以前添加到布局的所有答案
一项建议：
不要将答案视图动态添加到线性布局
，您应该在回收器视图中使用两个不同的支架，每个问题和答案对应一个支架。请参阅onBindView支架中的，您的循环应该是这样的
List<PollsData > pollsDataArraylist = dataList.get(position).getPollsDataArrayList();
for(int i = 0;i < pollsdataArraylist.size();i++){
PollsData pData = pollsdatArraylist.get(i);
textview1.setText(pData.getAnswer().toString());
textview2.setText(String.valueOf(pData.getPrecent()));
}
List pollsDataArraylist=dataList.get（position.getPollsDataArrayList（）；
对于（int i=0；i
刚刚在onBindView中删除了下面的代码，我得到了自己的问题解决方案
for(int i=0; i<dataList.size();i++){
PollQstWithOptions itemsData = dataList.get(i);
for（int i=0；i
@Override
public void onBindViewHolder(final MyViewHolder holder, int position) {
final PollQstWithOptions poll = dataList.get(position);
holder.txt_poll_question.setText(poll.getPollQstName());
for(int j=0;j<poll.getOptionList().size();j++){
PollsData mPollsData = poll.getOptionList().get(j);
TextView text = new TextView(context);
text.setLayoutParams(new TableRow.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT));
text.setText(mPollsData.getAns1());
holder.mainLayout.addView(text);
}
}