Example 1
If the JSON data describes an array, and each element of that array is an object:
[
{
"id": 1,
"discipline": "BCS-2E",
"starttime": "08:30",
"endtime": "10:00",
"day": "Monday",
"courseCode": "ENG325",
"courseName": "CPS",
"venue": "Lt3",
"teacherName": "Naeem",
"sessionId": "5",
"sessionName": null
},
{
"id": 103,
"discipline": "BCS-2D",
"starttime": "10:00",
"endtime": "11:30",
"day": "Tuesday",
"courseCode": "CS400",
"courseName": "DBS",
"venue": "Lab6",
"teacherName": "Abdul Rehman",
"sessionId": "5",
"sessionName": null
},
{
"id": 214,
"discipline": "BAI-3A",
"starttime": "11:30",
"endtime": "01:00",
"day": "Wednesday",
"courseCode": "CS632",
"courseName": "AI",
"venue": "Lab6",
"teacherName": "Dr. Sadaf,Rifhat",
"sessionId": "5",
"sessionName": null
},
{
"id": 326,
"discipline": "BIT-8B",
"starttime": "01:30",
"endtime": "03:00",
"day": "Thursday",
"courseCode": "ENG315",
"courseName": "TBW",
"venue": "Lt12",
"teacherName": "Sumaira",
"sessionId": "5",
"sessionName": null
},
{
"id": 439,
"discipline": "BCS-2B",
"starttime": "03:00",
"endtime": "04:30",
"day": "Friday",
"courseCode": "MTH315",
"courseName": "MVC",
"venue": "Lt5",
"teacherName": "Shahid Rasheed",
"sessionId": "5",
"sessionName": null
}
]the JSON Data Set will create a row for each object in the array, and each property on the object will become a column.
code XML Show Recycler View:
| LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".fragments.Admin.Schedule.Reschedule.AdminScheduleReScheduleFreeSlotActivity">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:gravity="center"
android:text="Selected Venue "
android:textSize="20dp"
android:textStyle="bold"
android:id="@+id/txt_view_selected_venue"/>
<androidx.recyclerview.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/Recycerview_admin_Reschedule"/>
</LinearLayout> |
Background XML Design Code :
| <?xml version="1.0" encoding="utf-8"?> <layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<!-- Drop Shadow Stack -->
<item>
<shape>
<padding
android:bottom="1dp"
android:left="1dp"
android:right="1dp"
android:top="1dp" />
<solid android:color="#00CCCCCC" />
<corners android:radius="3dp" />
</shape>
</item>
<item>
<shape>
<padding
android:bottom="1dp"
android:left="1dp"
android:right="1dp"
android:top="1dp" />
<solid android:color="#10CCCCCC" />
<corners android:radius="3dp" />
</shape>
</item>
<item>
<shape>
<padding
android:bottom="1dp"
android:left="1dp"
android:right="1dp"
android:top="1dp" />
<solid android:color="#20CCCCCC" />
<corners android:radius="3dp" />
</shape>
</item>
<item>
<shape>
<padding
android:bottom="1dp"
android:left="1dp"
android:right="1dp"
android:top="1dp" />
<solid android:color="#30CCCCCC" />
<corners android:radius="3dp" />
</shape>
</item>
<item>
<shape>
<padding
android:bottom="1dp"
android:left="1dp"
android:right="1dp"
android:top="1dp" />
<solid android:color="#50CCCCCC" />
<corners android:radius="3dp" />
</shape>
</item>
<!-- Background -->
<item>
<shape>
<solid android:color="@android:color/white" />
<corners android:radius="3dp" />
</shape>
</item>
</layer-list> |
code Recycler View Cell Design:
| <?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_height="wrap_content">
<LinearLayout
android:layout_width="match_parent"
android:layout_marginLeft="6dp"
android:layout_height="wrap_content"
android:orientation="horizontal">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:id="@+id/linearLayout_Day_of_Name"></LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_marginRight="3dp"
android:layout_marginLeft="6dp"
android:layout_height="wrap_content"
android:orientation="horizontal">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="9dp"
android:orientation="horizontal"
android:id="@+id/linearLayout_Free_slot"></LinearLayout>
</LinearLayout>
</LinearLayout>
|
Recycler View Java Class Code :
| package com.example.meyepro.adapters;
import android.content.Context;
import android.graphics.Typeface;
import android.os.Build;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.Spinner;
import android.widget.TableRow;
import android.widget.TextView;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.fragment.app.Fragment;
import androidx.recyclerview.widget.RecyclerView;
import com.example.meyepro.R;
import com.example.meyepro.databinding.RecyclerviewRescheduleFreeSlotCellBinding;
import com.example.meyepro.fragments.Admin.Schedule.Reschedule.AdminScheduleReScheduleFreeSlotActivity;
import com.example.meyepro.models.TimeTable;
import com.example.meyepro.models.recordings_details_by_teachername;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
public class AdminScheduleFreeSlotAdapter extends RecyclerView.Adapter<AdminScheduleFreeSlotAdapter.AdminScheduleFreeSlotViewHolder>{
private ArrayList<TimeTable> TimeTableList;
private Context context;
private Fragment fragment;
ArrayList<String> uniqueStartTimes= new ArrayList<>();
ArrayList<String> uniqueEndTimes= new ArrayList<>();
ArrayList<String> uniqueDays= new ArrayList<>();
ArrayList<String> uniqueVenue= new ArrayList<>();
ArrayList<HashMap<String, ArrayList<String>>> venueMap = new ArrayList<>();
Spinner[][] allSpinners = new Spinner[uniqueDays.size()][uniqueDays.size()];
public AdminScheduleFreeSlotAdapter(ArrayList<TimeTable> TimeTableList, Context context) {
this.TimeTableList = TimeTableList;
this.context = context;
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.N) {
uniqueStartTimes.addAll(TimeTableList.stream().distinct().map(t -> t.getStarttime()).distinct().collect(Collectors.toList()));
uniqueEndTimes.addAll(TimeTableList.stream().distinct().map(t -> t.getEndtime()).distinct().collect(Collectors.toList()));
uniqueDays.addAll(TimeTableList.stream().distinct().map(t -> t.getDay()).distinct().collect(Collectors.toList()));
uniqueVenue.addAll(TimeTableList.stream().distinct().map(t -> t.getVenue()).distinct().collect(Collectors.toList()));
allSpinners=null;
allSpinners = new Spinner[uniqueDays.size()][uniqueDays.size()];
}
// for (String Day : uniqueDays) {
// HashMap<String, ArrayList<String>> map = new HashMap<>();
// map.put(Day, new ArrayList<String>());
// venueMap.add(map);
// }
//
////
//
// for (TimeTable t : TimeTableList ){
// if (t.getStarttime() == ) {
// String venueName = t.getVenue();
// for (HashMap<String, ArrayList<String>> map : venueMap) {
// ArrayList<String> venues = map.get(t.getDay());
// if (venues != null && venues.contains(venueName)) {
// venues.remove(venueName);
// break;
// }
// }
// }
// }
//
// for (String s:uniqueVenue) {
// System.out.println("dddd"+s);
// }
}
public AdminScheduleFreeSlotAdapter (ArrayList<TimeTable> TimeTableList, Context context, Fragment fragment ) {
this.TimeTableList = TimeTableList;
this.context = context;
this.fragment=fragment;
}
@NonNull
@Override
public AdminScheduleFreeSlotViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
RecyclerviewRescheduleFreeSlotCellBinding b =RecyclerviewRescheduleFreeSlotCellBinding.
inflate(LayoutInflater
.from(parent.getContext()),
parent, false);
AdminScheduleFreeSlotViewHolder vh = new AdminScheduleFreeSlotViewHolder(b);
return vh;
}
@Override
public void onBindViewHolder(@NonNull AdminScheduleFreeSlotViewHolder holder, int position) {
if(position==0){
holder.bindDays(position);
}
String obj = uniqueStartTimes.get(position);
// holder.binding.txtViewStart.setText(obj);
holder.bind(position);
// holder.binding.textViewVenue1.setText(obj.getNAME()+"");
// holder.binding.textViewVenue2.setText(obj.getNAME()+"");
}
@Override
public int getItemCount() {
return uniqueStartTimes.size();
}
class AdminScheduleFreeSlotViewHolder extends RecyclerView.ViewHolder {
RecyclerviewRescheduleFreeSlotCellBinding binding;//<----
public AdminScheduleFreeSlotViewHolder(
@NonNull RecyclerviewRescheduleFreeSlotCellBinding itemView) {
super(itemView.getRoot());
binding = itemView;//<----
}
public void bind(int RowPosition) {
binding.linearLayoutFreeSlot.removeAllViews();
TextView textView = new TextView(context);
// Set the text
textView.setText(uniqueStartTimes.get(RowPosition)+"\n"+uniqueEndTimes.get(RowPosition));
// Set the width and height
int width = ViewGroup.LayoutParams.WRAP_CONTENT;; // in pixels
int height =150;
ViewGroup.LayoutParams layoutParams = new ViewGroup.LayoutParams(width, height);
textView.setLayoutParams(layoutParams);
// Set the gravity and layout gravity
textView.setGravity(Gravity.CENTER);
binding.linearLayoutFreeSlot.addView(textView);
//create Spinner
Spinner[] spinners = new Spinner[uniqueDays.size()];
String[][] items = new String[uniqueDays.size()][];
for (int i = 0; i < spinners.length; i++) {
TableRow.LayoutParams params = new TableRow.LayoutParams(
220,
TableRow.LayoutParams.MATCH_PARENT, 1f);
params.gravity = Gravity.RIGHT;
// Create Spinners for each TableRow
Spinner spinner = new Spinner(context);
spinner.setLayoutParams(params);
// unique venue
List<String> timeTables1= new ArrayList<>();
final int finalvalue=i;
timeTables1.add("");
timeTables1.addAll(uniqueVenue);
for (TimeTable t :TimeTableList){
if (t.getStarttime().toString().equals(uniqueStartTimes.get(RowPosition)) ) {
if (t.getDay().equals(uniqueDays.get(finalvalue))) {
if(timeTables1.equals(t.getVenue()));
timeTables1.remove(t.getVenue());
}
}
}
// use linq i
// if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
// timeTables1 = uniqueVenue.stream()
// .filter(venue -> TimeTableList.stream()
// .noneMatch(t -> t.getStarttime().equals(uniqueStartTimes.get(RowPosition))
// && t.getDay().equals(uniqueDays.get(finalvalue))
// && t.getVenue().equals(venue)))
// .collect(Collectors.toList());
// }
items[i] = timeTables1.toArray(new String[0]);
// items[i] = new String[]{"", "Spinner " + i + " Item 1", "Spinner " + i + " Item 2", "Spinner " + i + " Item 3"};
ArrayAdapter<String> adapter = new ArrayAdapter<String>(itemView.getContext(), android.R.layout.simple_spinner_dropdown_item, items[i]);
// adapter.setDropDownViewResource(R.layout.spinner_layout_timetable);
spinner.setAdapter(adapter);
final int finalI = i;
// Drawable drawable = ContextCompat.getDrawable(itemView.getContext(), R.drawable.teacher_recyclerview_background_cell);
// spinner.setBackground(drawable);
// spinner.setBackgroundResource(R.drawable.teacher_recyclerview_background_cell);
spinners[i] = spinner;
allSpinners[RowPosition][i] = spinner; // Store the spinner in the array
Spinner emptySpinner = spinners[i];
emptySpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
AdminScheduleReScheduleFreeSlotActivity reschedule= (AdminScheduleReScheduleFreeSlotActivity) context;
reschedule.recyclerviewSelectVenueDrowpdown(emptySpinner.getSelectedItem().toString(),context );
if (position != 0) {
// Disable all other spinners
for (int row = 0; row < allSpinners.length; row++) {
for (int col = 0; col < allSpinners[row].length; col++) {
Spinner spinner = allSpinners[row][col];
if (spinner != null && spinner.getSelectedItem().toString().equals("")) {
// Disable empty spinner
spinner.setEnabled(false);
} else if (row != RowPosition || col != finalI) {
// Disable non-selected spinners
spinner.setEnabled(false);
} else {
// Enable selected spinner
spinner.setEnabled(true);
}
}
}
Toast.makeText(context, "" + emptySpinner.getSelectedItem().toString(), Toast.LENGTH_SHORT).show();
} else {
// Enable all spinners
for (int row = 0; row < allSpinners.length; row++) {
for (int col = 0; col < allSpinners[row].length; col++) {
Spinner spinner = allSpinners[row][col];
if (spinner != null) {
spinner.setEnabled(true);
}
}
}
}
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
}
});
binding.linearLayoutFreeSlot.addView(spinner);
}
}
//create end
public void bindDays(int position) {
binding.linearLayoutDayOfName.removeAllViews();
TextView textViewFirst = new TextView(itemView.getContext());
textViewFirst.setLayoutParams(new LinearLayout.LayoutParams(
120,
140,1f));
// Set the gravity and layout gravity
textViewFirst .setGravity(Gravity.CENTER);
binding.linearLayoutDayOfName.addView(textViewFirst);
for (int i = 0; i < uniqueDays.size(); i++) {
TextView textView = new TextView(itemView.getContext());
textView.setLayoutParams(new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
100,1f));
textView.setBackgroundResource(R.drawable.teacher_recyclerview_background_cell);
textView.setTypeface(null, Typeface.BOLD);
textView .setGravity(Gravity.CENTER);
textView.setText(uniqueDays.get(i));
binding.linearLayoutDayOfName.addView(textView);
}
}
}
}
|
RecyclerView AdminScheduleReScheduleFreeSlotActivity Main java Code:
| package com.example.meyepro.fragments.Admin.Schedule.Reschedule;
import androidx.appcompat.app.AppCompatActivity;
import androidx.recyclerview.widget.LinearLayoutManager;
import android.content.Context;
import android.os.Bundle;
import android.widget.Toast;
import com.example.meyepro.R;
import com.example.meyepro.adapters.AdminScheduleFreeSlotAdapter;
import com.example.meyepro.api.Api;
import com.example.meyepro.api.RetrofitClient;
import com.example.meyepro.databinding.ActivityAdminScheduleReScheduleFreeSlotBinding;
import com.example.meyepro.models.TimeTable;
import java.util.ArrayList;
import java.util.List;
import java.util.stream.Collectors;
import retrofit2.Call;
import retrofit2.Callback;
import retrofit2.Response;
public class AdminScheduleReScheduleFreeSlotActivity extends AppCompatActivity {
ActivityAdminScheduleReScheduleFreeSlotBinding binding;
ArrayList<TimeTable> timeSlots=new ArrayList<>();
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
binding= ActivityAdminScheduleReScheduleFreeSlotBinding.inflate(getLayoutInflater());
setContentView(binding.getRoot());
RetrofitClient client= RetrofitClient.getInstance();
Api api= client.getMyApi();
api.All_timetable_teacher_details().enqueue(new Callback<ArrayList<TimeTable>>() {
@Override
public void onResponse(Call<ArrayList<TimeTable>> call, Response<ArrayList<TimeTable>> response) {
if(response.isSuccessful()){
Toast.makeText(getApplicationContext(), "Successful"+response.body().get(0).getCourseCode(), Toast.LENGTH_SHORT).show();
timeSlots.clear();
timeSlots.addAll(response.body());
AdminScheduleFreeSlotAdapter adapter = new
AdminScheduleFreeSlotAdapter(timeSlots, AdminScheduleReScheduleFreeSlotActivity.this);
LinearLayoutManager manager = new LinearLayoutManager(getApplicationContext());
binding.RecycerviewAdminReschedule.setLayoutManager(manager);
// Binding.RecycerviewAdminViewTeacher.setHasFixedSize(true);
binding.RecycerviewAdminReschedule.
setAdapter(adapter);
// binding.RecycerviewAdminReschedule.getAdapter().notifyDataSetChanged();
if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.N) {
List<String> uniqueStartTimes = timeSlots.stream().distinct()
.map(t -> t.getStarttime()).distinct()
// .sorted((t1, t2) -> {
// try {
// SimpleDateFormat sdf = new SimpleDateFormat("HH:mm");
// sdf.setTimeZone(TimeZone.getTimeZone("Asia/Karachi"));
// Date d1 = sdf.parse(t1);
// Date d2 = sdf.parse(t2);
// return d1.compareTo(d2);
// } catch (ParseException e) {
// return 0;
// }
// })
.collect(Collectors.toList());
// List<TimeTable> uniqueTimeTables = timeSlots.stream().distinct()
// .filter(t -> uniqueStartTimes.contains(t.getStarttime()))
// .collect(Collectors.toList());
//
// List<TimeTable> TeacherTimeTables = timeSlots.stream()
// .filter(t -> t.getTeacherName().contains("Naeem"))
// .collect(Collectors.toList());
//
// for (TimeTable timeTable : uniqueTimeTables) {
// System.out.println(timeTable.getStarttime());
// }
//
// for (TimeTable timeTable : TeacherTimeTables) {
// System.out.println(timeTable.getTeacherName()+"/"+timeTable.getDay());
// }
}
// Toast.makeText(getContext(), ""+timeSlots.size(), Toast.LENGTH_SHORT).show();
}
}
@Override
public void onFailure(Call<ArrayList<TimeTable>> call, Throwable t) {
Toast.makeText(getApplicationContext(), ""+t.toString(), Toast.LENGTH_SHORT).show();
}
});
}
public void recyclerviewSelectVenueDrowpdown(String venue, Context context) {
binding.txtViewSelectedVenue.setText("Selected Venue "+venue);
}
}
|
