안녕하세요. 안드로이드 스튜디오 자바 코드를 이용해 리스트 페이지를 만들고자 합니다. 서버에서 데이터 리스트를 가져와 리싸이클러뷰로 히스토리 페이지를 만드는 작업을 진행중인데, 데이터 파싱 문제인지 모르겠으나 리스트가 제대로 출력이 되지 않습니다. 사소한 문제인듯 싶은데 초보자라 그런지 문제를 어디서 어떻게 찾아야 하는지 모르겠네요. 백엔드 쪽 JavaScript 코드 문제인가 싶어 여러가지 해봤으나 해결이 되질않아 이렇게 도움을 요청해봅니다. 앱 실행 후 app log를 확인해보면 아래처럼 주소+랜덤한 String이 데이터 대신 이렇게 뜹니다.
아래는 제 자바스크립트 코드와 안드로이드 스튜디오 자바 코드입니다.
sql.ts:
app.get('/ring/event', function(req, res) {
var sql = 'SELECT * FROM defaultdb.Event_history';
connection.query(sql, function (err, result) {
var resultCode = 404;
var message = 'Error!';
if (err) {
console.log(err);
} else {
resultCode = 200;
message = 'Success!';
}
res.json({
'code':resultCode,
'message':message,
'result':result
});
});
});
HistoryData.java
public class HistoryData {
@SerializedName("eventID")
private int eventID;
@SerializedName("sensorID")
private String sensorID;
@SerializedName("sensorName")
private String sensorName;
@SerializedName("eventType")
private String eventType;
@SerializedName("eventDate")
private String eventDate;
@SerializedName("eventTime")
private String eventTime;
@SerializedName("userID")
private int userID;
public HistoryData(int eventID, String sensorID, String sensorName, String eventType, String eventDate, String eventTime, int userID) {
this.eventID = eventID;
this.sensorID = sensorID;
this.sensorName = sensorName;
this.eventType = eventType;
this.eventDate = eventDate;
this.eventTime = eventTime;
this.userID = userID;
}
public String getSensorName() {
return sensorName;
}
public void setSensorName(String sensorName) {
this.sensorName = sensorName;
}
public String getEventDate() {
return eventDate;
}
public void setEventDate(String eventDate) {
this.eventDate = eventDate;
}
public String getEventTime() {
return eventTime;
}
public void setEventTime(String eventTime){
this.eventTime = eventTime;
}
}
HistoryResponse.java
public class HistoryResponse {
@SerializedName("code")
public int code;
@SerializedName("message")
public String message;
@SerializedName("result")
public List<HistoryData> result;
@Override
public String toString() {
return "HistoryResponse{" + "result=" + result +'}';
}
}
ServiceApi.java:
public interface ServiceApi {
@POST("/user/login")
Call<LoginResponse> userLogin(@Body LoginData data);
@POST("/user/join")
Call<JoinResponse> userJoin(@Body JoinData data);
@GET("/ring/event")
Call<HistoryResponse> getData();
}
RecyclerAdapter.java:
public class RecyclerAdapter extends RecyclerView.Adapter<RecyclerAdapter.MyViewHolder>{
private Context c;
private List<HistoryData> dataList;
public RecyclerAdapter(Context c, List<HistoryData> dataList) {
this.c = c;
this.dataList = dataList;
}
@NonNull
@Override
public RecyclerAdapter.MyViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(c).inflate(R.layout.activity_history, parent, false);
return new MyViewHolder(view);
}
@Override
public void onBindViewHolder(@NonNull RecyclerAdapter.MyViewHolder holder, int position) {
holder.name.setText("" + dataList.get(position).getSensorName());
holder.time.setText("" + dataList.get(position).getEventTime());
holder.date.setText("" + dataList.get(position).getEventDate());
}
@Override
public int getItemCount() {
return (dataList == null) ? 0 : dataList.size();
}
public class MyViewHolder extends RecyclerView.ViewHolder {
TextView name;
TextView time;
TextView date;
public MyViewHolder(@NonNull View itemView) {
super(itemView);
name = (TextView)itemView.findViewById(R.id.sensorName);
time = (TextView)itemView.findViewById(R.id.eventType);
date = (TextView)itemView.findViewById(R.id.eventDate);
}
}
}
HistoryActivity.java:
public class HistoryActivity extends AppCompatActivity {
HistoryResponse dataList;
List<HistoryData> dataInfo;
private RecyclerView recyclerView;
private RecyclerAdapter recyclerAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.recycler_view);
dataInfo = new ArrayList<>();
recyclerView = findViewById(R.id.recyclerView);
RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(this);
recyclerView.setLayoutManager(layoutManager);
ServiceApi apiInterface = RetrofitClient.getClient().create(ServiceApi.class);
Call<HistoryResponse> call = apiInterface.getData();
recyclerAdapter = new RecyclerAdapter(getApplicationContext(), null);
recyclerView.setAdapter(recyclerAdapter);
call.enqueue(new Callback<HistoryResponse>() {
@Override
public void onResponse(Call<HistoryResponse> call, Response<HistoryResponse> response) {
dataList = response.body();
Log.d("HistoryActivity", dataList.toString());
dataInfo = dataList.result;
recyclerAdapter = new RecyclerAdapter(getApplicationContext(), dataInfo);
recyclerView.setAdapter(recyclerAdapter);
}
@Override
public void onFailure(Call<HistoryResponse> call, Throwable t) {
Log.d("HistoryActivity", t.toString());
}
});
}
}
