Android 如何使用带有给定json的改型2解析recyclerview上的数据_Android_Json_Retrofit

Android 如何使用带有给定json的改型2解析recyclerview上的数据

android json

Android 如何使用带有给定json的改型2解析recyclerview上的数据,android,json,retrofit,Android,Json,Retrofit,你好，我是新的改型和json。我有一个给定的json，希望在recyclerview中显示数据。我试图解析getWorkQueue（）中的数据，但出现了问题 myJson [ { ""REQUEST_NO"": ""CR-201718-6"", ""PROCESS_NAME"": ""CONVEYANCE REIMBURSEMENT"", ""STEPNAME"": null, ""PROCESSID"": 1,

你好，我是新的改型和json。我有一个给定的json，希望在recyclerview中显示数据。我试图解析getWorkQueue（）中的数据，但出现了问题

myJson

[
    {
        ""REQUEST_NO"": ""CR-201718-6"",
        ""PROCESS_NAME"": ""CONVEYANCE REIMBURSEMENT"",
        ""STEPNAME"": null,
        ""PROCESSID"": 1,
        ""INSTANCEID"": 6,
        ""AMOUNT"": 250,
        ""RAISED_BY"": ""flologic1"",
        ""RAISED_DATE"": ""12-Sep-2017"",
        ""APPROVED_BY"": ""Flologic2"",
        ""APPROVED_DATE"": null,
        ""BRANCH"": ""101""
    }
]

WorkQueueAdapter.java

公共类WorkQueueAdapter扩展了RecyclerView.Adapter{

private List<TravelWorkQueue> mDataset;
private Context context;

public WorkQueueAdapter(List<TravelWorkQueue> myDataset, Context mContext) {
    this.mDataset = myDataset;
    this.context = mContext;
}

@Override
public void onBindViewHolder(DataObjectHolder viewHolder, final int position) {

    TravelWorkQueue queue = mDataset.get(position);
    viewHolder.raisedBy.setText(queue.getRaisedBy());
    viewHolder.requestNo.setText(queue.getRequestNo());
    viewHolder.trdate.setText(queue.getRaisedDate());
    viewHolder.processName.setText(queue.getProcessName());

}

@Override
public int getItemCount() {
    return mDataset.size();
}

public static class DataObjectHolder extends RecyclerView.ViewHolder {

    TextView raisedBy, requestNo, trdate, processName;
    LinearLayout linearLayout;

    public DataObjectHolder(View itemView) {
        super(itemView);
        raisedBy = (TextView) itemView.findViewById(R.id.raisedBy);
        requestNo = (TextView) itemView.findViewById(R.id.requestNo);
        trdate = (TextView) itemView.findViewById(R.id.trDate);
        processName = (TextView) itemView.findViewById(R.id.processName);

        linearLayout = (LinearLayout) itemView.findViewById(R.id.linearIteam);
    }

}

@Override
public DataObjectHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.work_queue_list, parent, false);
    return new DataObjectHolder(view);
}

私有列表mDataset；
私人语境；
公共WorkQueueAdapter（列表myDataset、上下文mContext）{
this.mDataset=myDataset；
this.context=mContext；
}
@凌驾
public void onBindViewHolder（DataObjectHolder viewHolder，最终int位置）{
TravelWorkQueue=mDataset.get（位置）；
viewHolder.raisedBy.setText（queue.getRaisedBy（））；
viewHolder.requestNo.setText（queue.getRequestNo（））；
viewHolder.trdate.setText（queue.getRaisedDate（））；
viewHolder.processName.setText（queue.getProcessName（））；
}
@凌驾
public int getItemCount（）{
返回mDataset.size（）；
}
公共静态类DataObjectHolder扩展了RecyclerView.ViewHolder{
TextView-raisedBy、requestNo、trdate、processName；
线性布局线性布局；
公共数据对象持有者（视图项视图）{
超级（项目视图）；
raisedBy=（TextView）itemView.findViewById（R.id.raisedBy）；
requestNo=（TextView）itemView.findViewById（R.id.requestNo）；
trdate=（TextView）itemView.findViewById（R.id.trdate）；
processName=（TextView）itemView.findViewById（R.id.processName）；
linearLayout=（linearLayout）itemView.findViewById（R.id.LineareAm）；
}
}
@凌驾
public DataObjectHolder onCreateViewHolder（视图组父级，int-viewType）{
View=LayoutFlater.from（parent.getContext（））.flate（R.layout.work\u queue\u list，parent，false）；
返回新的DataObjectHolder（视图）；
}

}

和片段类

公共类工作队列扩展片段{

public static final String TAG = WorkQueue.class.getSimpleName();
private View rootView;
private ListView myRequestList;
private RecyclerView.LayoutManager mLayoutManager;
private WorkQueueAdapter mAdapter;

private RecyclerView mRecyclerView;
String userName = "flologic2";

private TravelWorkQueue travelWorkQueue;
List<TravelWorkQueue> travelWorkQueues;

@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
    rootView = inflater.inflate(R.layout.work_queue, container, false);

    //  userName = getParent().getUserName();
    mRecyclerView = (RecyclerView) rootView.findViewById(R.id.my_recycler_view);

    mRecyclerView.setHasFixedSize(true);
    mLayoutManager = new LinearLayoutManager(getActivity());
    mRecyclerView.setLayoutManager(mLayoutManager);
    travelWorkQueues = new ArrayList<>();
    // TravelRequestService  travelRequestService = HDFCService.getTravelRequestService();

    getWorkQueue();

    return rootView;
}

private HomeActivity getParent() {
    return (HomeActivity) getActivity();
}

private void getWorkQueue() {

    Call<List<TravelWorkQueue>> call = HDFCService.getTravelRequestService().getRequestQueqeDetails(userName);
    call.enqueue(new Callback<List<TravelWorkQueue>>() {
        @Override
        public void onResponse(Call<List<TravelWorkQueue>> call, Response<List<TravelWorkQueue>> response) {

            List<TravelWorkQueue> list = response.body();
            TravelWorkQueue workQueue = null;

            //int i=0;
           for (int i = 0; i < list.size(); i++) {
                workQueue = new TravelWorkQueue();
                String requestNo = list.get(i).getRequestNo();
                String raisedBy = list.get(i).getApproverBy();
                String raisedDate = list.get(i).getRaisedDate();
                String processName = list.get(i).getProcessName();

                workQueue.setRequestNo(requestNo);
                workQueue.setRaisedBy(raisedBy);
                workQueue.setRaisedDate(raisedDate);
                workQueue.setProcessName(processName);

                list.add(workQueue);
            i++;


                mAdapter = new WorkQueueAdapter(travelWorkQueues, getActivity());
                mRecyclerView.setAdapter(mAdapter);
            }
        }

        @Override
        public void onFailure(Call<List<TravelWorkQueue>> call, Throwable t) {

            Toast.makeText(getActivity(), "Failed", Toast.LENGTH_LONG).show();
        }
    });}}

public static final String TAG=WorkQueue.class.getSimpleName（）；
私有视图rootView；
私有ListView myRequestList；
private RecyclerView.LayoutManager MLLayoutManager；
私有工作队列适配器mAdapter；
私人回收视图mRecyclerView；
字符串userName=“flologic2”；
专用TravelWorkQueue TravelWorkQueue；
列出工作队列；
@可空
@凌驾
创建视图时的公共视图（LayoutFlater充气机、@Nullable ViewGroup容器、Bundle savedInstanceState）{
rootView=充气机。充气（R.layout.work\u队列，容器，false）；
//userName=getParent（）.getUserName（）；
mRecyclerView=（RecyclerView）rootView.findviewbyd（R.id.my\u recycler\u视图）；
mRecyclerView.setHasFixedSize（true）；
mLayoutManager=新的LinearLayoutManager（getActivity（））；
mRecyclerView.setLayoutManager（mllayoutmanager）；
travelWorkQueues=newArrayList（）；
//TravelRequestService TravelRequestService=HDFCService.getTravelRequestService（）；
getWorkQueue（）；
返回rootView；
}
私有HomeActivity getParent（）{
return（HomeActivity）getActivity（）；
}
私有void getWorkQueue（）{
Call Call=HDFCService.getTravelRequestService（）.getRequestQueqeDetails（用户名）；
call.enqueue（新回调（）{
@凌驾
公共void onResponse（调用、响应）{
List=response.body（）；
TravelWorkQueue workQueue=null；
//int i=0；
对于（int i=0；i

问题：

不需要i++
内部循环
创建并设置适配器外部循环
travelWorkQueues没有数据，您正在将数据添加到列表
中，而不是将数据添加到travelWorkQueues列表中，或者在创建适配器时使用列表
引用


for（int i=0；i
问题：

不需要i++
内部循环
创建并设置适配器外部循环
travelWorkQueues没有数据，您正在将数据添加到列表
中，而不是将数据添加到travelWorkQueues列表中，或者在创建适配器时使用列表
引用


for（int i=0；i
替换此方法。然后调用mAdapter.notifydatasetchanged（）

@覆盖
公共void onResponse（调用、响应）{
List=response.body（）；
TravelWorkQueue workQueue=null；
//int i=0；
对于（int i=0；ifor (int i = 0; i < list.size(); i++) {
    // code
    //i++;

//    mAdapter = new WorkQueueAdapter(travelWorkQueues, getActivity());
//    mRecyclerView.setAdapter(mAdapter);
      travelWorkQueues.add(workQueue);
}
    mAdapter = new WorkQueueAdapter(travelWorkQueues, getActivity());
    mRecyclerView.setAdapter(mAdapter);

@Override
public void onResponse(Call<List<TravelWorkQueue>> call, Response<List<TravelWorkQueue>> response) {
    List<TravelWorkQueue> list = response.body();
    TravelWorkQueue workQueue = null;
    //int i=0;
    for (int i = 0; i < list.size(); i++) {
        workQueue = new TravelWorkQueue();
        String requestNo = list.get(i).getRequestNo();
        String raisedBy = list.get(i).getApproverBy();
        String raisedDate = list.get(i).getRaisedDate();
        String processName = list.get(i).getProcessName();

        workQueue.setRequestNo(requestNo);
        workQueue.setRaisedBy(raisedBy);
        workQueue.setRaisedDate(raisedDate);
        workQueue.setProcessName(processName);
        list.add(workQueue);
    } mAdapter = new WorkQueueAdapter(travelWorkQueues, getActivity());
    mRecyclerView.setAdapter(mAdapter);
}

       for (int i = 0; i < list.size(); i++) {
            workQueue = new TravelWorkQueue();
            String requestNo = list.get(i).getRequestNo();
            String raisedBy = list.get(i).getApproverBy();
            String raisedDate = list.get(i).getRaisedDate();
            String processName = list.get(i).getProcessName();

            workQueue.setRequestNo(requestNo);
            workQueue.setRaisedBy(raisedBy);
            workQueue.setRaisedDate(raisedDate);
            workQueue.setProcessName(processName);

            travelWorkQueues.add(workQueue);

               //Remove this  i++
           }
          //Call this after the for loop
          mAdapter = new WorkQueueAdapter(travelWorkQueues, getActivity()); 
          mRecyclerView.setAdapter(mAdapter);