I got crashed when i click Confirm button and this form my logcat:
2020-01-30 15:11:22.363 5563-5563/com.example.barberbooking E/AndroidRuntime: FATAL EXCEPTION: main Process: com.example.barberbooking, PID: 5563 java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String com.example.barberbooking.Model.Salon.getSalonId()' on a null object reference at com.example.barberbooking.Fragments.BookingStep4Fragment.lambda$null$0$BookingStep4Fragment(BookingStep4Fragment.java:260) at com.example.barberbooking.Fragments.-$$Lambda$BookingStep4Fragment$4Ef790x-NNkmXHs_bv2YFCA2Nyk.onSuccess(Unknown Source:4) at com.google.android.gms.tasks.zzn.run(Unknown Source:4) at android.os.Handler.handleCallback(Handler.java:790) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:164) at android.app.ActivityThread.main(ActivityThread.java:6494) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
package com.example.barberbooking.Fragments;
import android.app.AlertDialog;
import android.content.ContentResolver;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.provider.CalendarContract;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;
import com.example.barberbooking.Common.Common;
import com.example.barberbooking.Database.CartDataSource;
import com.example.barberbooking.Database.CartDatabase;
import com.example.barberbooking.Database.CartItem;
import com.example.barberbooking.Database.LocalCartDataSource;
import com.example.barberbooking.Model.BookingInformation;
import com.example.barberbooking.Model.EventBus.ConfirmBookingEvent;
import com.example.barberbooking.Model.FCMResponse;
import com.example.barberbooking.Model.FCMsendData;
import com.example.barberbooking.Model.MyNotification;
import com.example.barberbooking.Model.MyToken;
import com.example.barberbooking.R;
import com.example.barberbooking.Retrofit.IFCMApi;
import com.example.barberbooking.Retrofit.RetrofitClient;
import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.OnFailureListener;
import com.google.android.gms.tasks.OnSuccessListener;
import com.google.android.gms.tasks.Task;
import com.google.firebase.Timestamp;
import com.google.firebase.firestore.CollectionReference;
import com.google.firebase.firestore.DocumentReference;
import com.google.firebase.firestore.DocumentSnapshot;
import com.google.firebase.firestore.FieldValue;
import com.google.firebase.firestore.FirebaseFirestore;
import com.google.firebase.firestore.QuerySnapshot;
import org.greenrobot.eventbus.EventBus;
import org.greenrobot.eventbus.Subscribe;
import org.greenrobot.eventbus.ThreadMode;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.TimeZone;
import java.util.UUID;
import butterknife.BindView;
import butterknife.ButterKnife;
import butterknife.OnClick;
import butterknife.Unbinder;
import dmax.dialog.SpotsDialog;
import io.paperdb.Paper;
import io.reactivex.SingleObserver;
import io.reactivex.android.schedulers.AndroidSchedulers;
import io.reactivex.disposables.CompositeDisposable;
import io.reactivex.disposables.Disposable;
import io.reactivex.functions.Consumer;
import io.reactivex.schedulers.Schedulers;
@SuppressWarnings("ALL")
public class BookingStep4Fragment extends Fragment {
CartDataSource cartDataSource;
CompositeDisposable compositeDisposable = new CompositeDisposable();
SimpleDateFormat simpleDateFormat;
Unbinder unbinder;
IFCMApi ifcmApi;
AlertDialog dialog;
@BindView(R.id.txt_booking_barber_text)
TextView txt_booking_barber_text;
@BindView(R.id.txt_booking_time_text)
TextView txt_booking_time_text;
@BindView(R.id.txt_salon_address)
TextView txt_salon_address;
@BindView(R.id.txt_salon_open_hours)
TextView txt_salon_open_hours;
@BindView(R.id.txt_salon_phone)
TextView txt_salon_phone;
@BindView(R.id.txt_salon_website)
TextView txt_salon_website;
@BindView(R.id.txt_salon_name)
TextView txt_salon_name;
@OnClick(R.id.btn_confirm)
void confirmBooking() {
dialog.show();
//DatabaseUtils.getAllCart(CartDatabase.getInstance(getContext()),
//this);
compositeDisposable.add(cartDataSource.getAllItemFromCart(Common.currentUser.getPhoneNumber())
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(new Consumer<List<CartItem>>() {
@Override
public void accept(List<CartItem> cartItems) throws Exception {
String startTime = Common.convertTimeSlotToString(Common.currentTimeSlot);
String[] convertTime = startTime.split("-");
String[] startTimeConvert = convertTime[0].split(":");
int startHourInt = Integer.parseInt(startTimeConvert[0].trim());
int startMinInt = Integer.parseInt(startTimeConvert[1].trim()); // We get 00
Calendar bookingDateWithourHouse = Calendar.getInstance();
bookingDateWithourHouse.setTimeInMillis(Common.currentDate.getTimeInMillis());
bookingDateWithourHouse.set(Calendar.HOUR_OF_DAY, startHourInt);
bookingDateWithourHouse.set(Calendar.MINUTE, startMinInt);
//Create timestamp object and apply to BookingInformation
Timestamp timestamp = new Timestamp(bookingDateWithourHouse.getTime());
final BookingInformation bookingInformation = new BookingInformation();
bookingInformation.setCityBook(Common.city);
bookingInformation.setTimestamp(timestamp);
bookingInformation.setDone(false);
bookingInformation.setBarberId(Common.currentBarber.getBarberId());
bookingInformation.setBarberName(Common.currentBarber.getName());
bookingInformation.setCustomerName(Common.currentUser.getName());
bookingInformation.setCustomerPhone(Common.currentUser.getPhoneNumber());
bookingInformation.setSalonId(Common.currentSalon.getSalonId());
bookingInformation.setSalonAddress(Common.currentSalon.getAddress());
bookingInformation.setSalonName(Common.currentSalon.getName());
bookingInformation.setTime(new StringBuilder(Common.convertTimeSlotToString(Common.currentTimeSlot))
.append(" at ")
.append(simpleDateFormat.format(bookingDateWithourHouse.getTime())).toString());
bookingInformation.setSlot(Long.valueOf(Common.currentTimeSlot));
bookingInformation.setCartItemList(cartItems);
DocumentReference bookingDate = FirebaseFirestore.getInstance()
.collection("AllSalon")
.document(Common.city)
.collection("Branch")
.document(Common.currentSalon.getSalonId())
.collection("Barber")
.document(Common.currentBarber.getBarberId())
.collection(Common.simpleDateFormat.format(Common.currentDate.getTime()))
.document(String.valueOf(Common.currentTimeSlot));
bookingDate.set(bookingInformation)
.addOnSuccessListener((aVoid) -> {
resetStaticData();
getActivity().finish(); activity
Toast.makeText(getContext(), "Success", Toast.LENGTH_SHORT).show();
//DatabaseUtils.clearCart(CartDatabase.getInstance(getContext()));
cartDataSource.clearCart(Common.currentUser.getPhoneNumber())
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(new SingleObserver<Integer>() {
@Override
public void onSubscribe(Disposable d) {
}
@Override
public void onSuccess(Integer integer) {
addToUserBooking(bookingInformation);
}
@Override
public void onError(Throwable e) {
Toast.makeText(getContext(), "" + e.getMessage(), Toast.LENGTH_SHORT).show();
}
});
}).addOnFailureListener(e -> {
Toast.makeText(getContext(), "" + e.getMessage(), Toast.LENGTH_SHORT).show();
});
}
}, new Consumer<Throwable>() {
@Override
public void accept(Throwable throwable) throws Exception {
Toast.makeText(getContext(), "" + throwable.getMessage(), Toast.LENGTH_SHORT).show();
}
}));
}
private void addToUserBooking(BookingInformation bookingInformation) {
final CollectionReference userBooking = FirebaseFirestore.getInstance()
.collection("User")
.document(Common.currentUser.getPhoneNumber())
.collection("Booking");
Calendar calendar = Calendar.getInstance();
calendar.add(Calendar.DATE, 0);
calendar.set(Calendar.HOUR_OF_DAY, 0);
calendar.set(Calendar.MINUTE, 0);
Timestamp toDayTimeStamp = new Timestamp(calendar.getTime());
userBooking
.whereGreaterThanOrEqualTo("timestamp", toDayTimeStamp)
.whereEqualTo("done", false)
.limit(1)
.get()
.addOnCompleteListener(task -> {
if (task.getResult().isEmpty()) {
userBooking.document()
.set(bookingInformation)
.addOnSuccessListener(aVoid -> {
MyNotification myNotification = new MyNotification();
myNotification.setUid(UUID.randomUUID().toString());
myNotification.setTitle("New Booking");
myNotification.setContent("You have a new appoiment for customer hair care with " + Common.currentUser.getName());
myNotification.setRead(false); // We will only filter notification with 'read' is false on barber staff app
myNotification.setServerTimestamp(FieldValue.serverTimestamp());
FirebaseFirestore.getInstance()
.collection("AllSalon")
.document(Common.city)
.collection("Branch")
.document(Common.currentSalon.getSalonId())
.collection("Barber")
.document(Common.currentBarber.getBarberId())
.collection("Notifications")
.document(myNotification.getUid())
.set(myNotification)
.addOnSuccessListener(new OnSuccessListener<Void>() {
@Override
public void onSuccess(Void aVoid) {
dialog.dismiss();
//First , get Token base on Barber id
FirebaseFirestore.getInstance()
.collection("Tokens")
.whereEqualTo("userPhone", Common.currentBarber.getUsername())
.limit(1)
.get()
.addOnCompleteListener(new OnCompleteListener<QuerySnapshot>() {
@Override
public void onComplete(@NonNull Task<QuerySnapshot> task) {
if (task.isSuccessful() && task.getResult().size() > 0) {
MyToken myToken = new MyToken();
for (DocumentSnapshot tokenSnapShot : task.getResult())
myToken = tokenSnapShot.toObject(MyToken.class);
FCMsendData sendRequest = new FCMsendData();
Map<String, String> dataSend = new HashMap<>();
dataSend.put(Common.TITLE_KEY, "New Booking");
dataSend.put(Common.CONTENT_KEY, "You have new booking from user "+ Common.currentUser.getName());
sendRequest.setTo(myToken.getToken());
sendRequest.setData(dataSend);
compositeDisposable.add(ifcmApi.sendNotification(sendRequest)
.subscribeOn(Schedulers.io())
.observeOn(AndroidSchedulers.mainThread())
.subscribe(new Consumer<FCMResponse>() {
@Override
public void accept(FCMResponse fcmResponse) throws Exception {
dialog.dismiss();
addToCalendar(Common.currentDate,
Common.convertTimeSlotToString(Common.currentTimeSlot));
resetStaticData();
getActivity().finish(); //Close Activity
Toast.makeText(getContext(), "Success", Toast.LENGTH_SHORT).show();
}
}, new Consumer<Throwable>() {
@Override
public void accept(Throwable throwable) throws Exception {
Log.d("NOTIFICATION_ERROR", throwable.getMessage());
addToCalendar(Common.currentDate,
Common.convertTimeSlotToString(Common.currentTimeSlot));
resetStaticData();
getActivity().finish(); //Close Activity
Toast.makeText(getContext(), "Success", Toast.LENGTH_SHORT).show();
}
}));
}
}
});
}
});
})
.addOnFailureListener(new OnFailureListener() {
@Override
public void onFailure(@NonNull Exception e) {
if (dialog.isShowing())
dialog.dismiss();
Toast.makeText(getContext(), e.getMessage(), Toast.LENGTH_SHORT).show();
}
});
} else {
if (dialog.isShowing())
dialog.dismiss();
resetStaticData();
getActivity().finish(); // Close activity
Toast.makeText(getContext(), "Success", Toast.LENGTH_SHORT).show();
}
});
}
private void addToCalendar(Calendar bookingDate, String startDate) {
String startTime = Common.convertTimeSlotToString(Common.currentTimeSlot);
String[] convertTime = startTime.split("-"); //Split ex : 9:00-10:00
//Get start time : get 9:00
String[] startTimeConvert = convertTime[0].split(":");
int startHourInt = Integer.parseInt(startTimeConvert[0].trim()); int startMinInt = Integer.parseInt(startTimeConvert[1].trim());
String[] endTimeConvert = convertTime[1].split(":");
int endHourInt = Integer.parseInt(endTimeConvert[0].trim());
int endMinInt = Integer.parseInt(endTimeConvert[1].trim());
Calendar startEvent = Calendar.getInstance();
startEvent.setTimeInMillis(bookingDate.getTimeInMillis());
startEvent.set(Calendar.HOUR_OF_DAY, startHourInt);
startEvent.set(Calendar.MINUTE, startMinInt);
Calendar endEvent = Calendar.getInstance();
endEvent.setTimeInMillis(bookingDate.getTimeInMillis());
endEvent.set(Calendar.HOUR_OF_DAY, endHourInt); hour
endEvent.set(Calendar.MINUTE, endMinInt);
SimpleDateFormat calendarDateFormat = new SimpleDateFormat("dd-MM-yyyy HH:mm");
String startEventTime = calendarDateFormat.format(startEvent.getTime());
String endEventTime = calendarDateFormat.format(endEvent.getTime());
addToDeviceCalendar(startEventTime, endEventTime, "Haircut Booking",
new StringBuilder("Haircut from ")
.append(startTime)
.append(" with ")
.append(Common.currentBarber.getName())
.append(" at ")
.append(Common.currentSalon.getName()).toString(),
new StringBuilder("Address: ").append(Common.currentSalon.getAddress()).toString());
}
private void addToDeviceCalendar(String startEventTime, String endEventTime, String title, String description, String location) {
SimpleDateFormat calendarDateFormat = new SimpleDateFormat("dd-MM-yyyy HH:mm");
try {
Date start = calendarDateFormat.parse(startEventTime);
Date end = calendarDateFormat.parse(endEventTime);
ContentValues event = new ContentValues();
event.put(CalendarContract.Events.CALENDAR_ID, getCalendar(getContext()));
event.put(CalendarContract.Events.TITLE, title);
event.put(CalendarContract.Events.DESCRIPTION, description);
event.put(CalendarContract.Events.EVENT_LOCATION, location);
event.put(CalendarContract.Events.DTSTART, start.getTime());
event.put(CalendarContract.Events.DTEND, end.getTime());
event.put(CalendarContract.Events.ALL_DAY, 0);
event.put(CalendarContract.Events.HAS_ALARM, 1);
String timeZone = TimeZone.getDefault().getID();
event.put(CalendarContract.Events.EVENT_TIMEZONE, timeZone);
Uri calendars;
if (Build.VERSION.SDK_INT >= 22)
calendars = Uri.parse("content://com.android.calendar/events");
else
calendars = Uri.parse("content://calendar/events");
Uri uri_save = getActivity().getContentResolver().insert(calendars, event);
Paper.init(getActivity());
Paper.book().write(Common.EVENT_URI_CACHE, uri_save.toString());
} catch (ParseException e) {
e.printStackTrace();
}
}
private String getCalendar(Context context) {
String gmailIdCalendar = "";
String projection[] = {"_id", "calendar_displayName"};
Uri calendars = Uri.parse("content://com.android.calendar/calendars");
ContentResolver contentResolver = context.getContentResolver();
Cursor managedCursor = contentResolver.query(calendars, projection, null, null, null);
if (managedCursor.moveToFirst()) {
String calName;
int nameCol = managedCursor.getColumnIndex(projection[1]);
int idCol = managedCursor.getColumnIndex(projection[0]);
do {
calName = managedCursor.getString(nameCol);
if (calName.contains("@gmail.com")) {
gmailIdCalendar = managedCursor.getString(idCol);
break; // Exit as soon as have io
}
} while (managedCursor.moveToNext());
managedCursor.close();
}
return gmailIdCalendar;
}
private void resetStaticData() {
Common.step = 0;
Common.currentTimeSlot = -1;
Common.currentSalon = null;
Common.currentBarber = null;
Common.currentDate.add(Calendar.DATE, 0);//Current date
}
@Override
public void onStart() {
super.onStart();
EventBus.getDefault().register(this);
}
@Override
public void onStop() {
EventBus.getDefault().unregister(this);
super.onStop();
}
@Subscribe(sticky = true, threadMode = ThreadMode.MAIN)
public void setDataBooking(ConfirmBookingEvent event) {
if (event.isConfirm()) {
setData();
}
}
private void setData() {
txt_booking_barber_text.setText(Common.currentBarber.getName());
txt_booking_time_text.setText(new StringBuilder(Common.convertTimeSlotToString(Common.currentTimeSlot))
.append(" at ")
.append(simpleDateFormat.format(Common.currentDate.getTime())));
txt_salon_address.setText(Common.currentSalon.getAddress());
txt_salon_website.setText(Common.currentSalon.getWebsite());
txt_salon_name.setText(Common.currentSalon.getName());
txt_salon_open_hours.setText(Common.currentSalon.getOpenHours());
}
static BookingStep4Fragment instance;
public static BookingStep4Fragment getInstance() {
if(instance == null) ;
instance = new BookingStep4Fragment();
return instance;
}
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
ifcmApi = RetrofitClient.getInstance().create(IFCMApi.class);
//Apply format for date display on Confirm
simpleDateFormat = new SimpleDateFormat("dd/MM/yyyy");
dialog = new SpotsDialog.Builder().setContext(getContext()).setCancelable(false)
.build();
}
@Override
public void onDestroy() {
compositeDisposable.clear();
super.onDestroy();
{ if (dialog != null) { dialog.dismiss(); dialog = null; }}
}
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
super.onCreateView(inflater, container, savedInstanceState);
View itemView = inflater.inflate(R.layout.fragment_bookingstep_four, container, false);
unbinder = ButterKnife.bind(this, itemView);
//Remember init cartDataSource here (onCreateView) , if you don't want to get null reference
//Because getContext() return null
cartDataSource = new LocalCartDataSource(CartDatabase.getInstance(getContext()).cartDAO());
return itemView;
}
}
