Rakantor/iubh-gamer-app
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Refactor

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This commit is contained in:
Rakantor
2022-06-19 14:03:39 +02:00
parent 9e9ece3a9c
commit 9452f1910d
7 changed files with 479 additions and 465 deletions
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3
app/src/main/AndroidManifest.xml
View File

@@ -9,7 +9,8 @@
android:roundIcon="@mipmap/ic_launcher_round"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".LoginActivity">
<activity android:name=".LoginActivity"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.MAIN" />

2
app/src/main/java/com/example/iubhgamerapp/ui/ChatFragment.java
View File

@@ -142,7 +142,7 @@ public class ChatFragment extends Fragment {
// Convert epoch timestamp to formatted date string
Date date = new Date(timestamp * 1000L);
this.date = new SimpleDateFormat("dd.MM.YYYY HH:mm", Locale.getDefault()).format(date);
this.date = new SimpleDateFormat("dd.MM.yyyy HH:mm", Locale.getDefault()).format(date);
// Check if the sender's user id still exist in the database.
// If so, extract their nickname

188
app/src/main/java/com/example/iubhgamerapp/ui/HomeFragment.java
View File

@@ -35,7 +35,6 @@ import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.Objects;
public class HomeFragment extends Fragment {
private View root;
@@ -44,7 +43,6 @@ public class HomeFragment extends Fragment {
private DataSnapshot dsUsers, dsGames;
private ProgressBar progressBar;
private TextView welcome, nextDate, nextHost;
private Button btnSignOut, btnVote, btnSuggest;
private Spinner spinnerGames;
private Map<Long, Integer> games = new HashMap<>();
private String userNickname, nextDateID;
@@ -55,11 +53,11 @@ public class HomeFragment extends Fragment {
welcome = root.findViewById(R.id.text_home);
nextDate = root.findViewById(R.id.text_home2);
nextHost = root.findViewById(R.id.text_home5);
btnSignOut = root.findViewById(R.id.logout);
btnVote = root.findViewById(R.id.vote);
btnSuggest = root.findViewById(R.id.suggest);
spinnerGames = root.findViewById(R.id.spinner_games);
progressBar = root.findViewById(R.id.progressBar);
Button btnSignOut = root.findViewById(R.id.logout);
Button btnVote = root.findViewById(R.id.vote);
Button btnSuggest = root.findViewById(R.id.suggest);
// Set button listeners
btnSignOut.setOnClickListener(v -> signOutUser());
@@ -76,28 +74,41 @@ public class HomeFragment extends Fragment {
refGames = FirebaseDatabase.getInstance().getReference("spiele");
refUsers = FirebaseDatabase.getInstance().getReference("spieler");
// Get list of registered users from database
refUsers.addValueEventListener(new ValueEventListener() {
// Get a list of all players from the database and store as DataSnapshot,
// then check whether a new event needs to be added to the database.
refUsers.addListenerForSingleValueEvent(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
dsUsers = dataSnapshot;
setValues();
updateUI();
checkUpcomingEvent();
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
Toast.makeText(getContext(), R.string.db_comm_err, Toast.LENGTH_SHORT).show();
}
});
// Get list of available games from database
// Update the UI whenever the list of players changes in the database
refUsers.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
dsUsers = dataSnapshot;
updateUI();
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
Toast.makeText(getContext(), R.string.db_comm_err, Toast.LENGTH_SHORT).show();
}
});
// Update the UI whenever the list of games changes in the database
refGames.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
dsGames = dataSnapshot;
updateGamesList();
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
Toast.makeText(getContext(), R.string.db_comm_err, Toast.LENGTH_SHORT).show();
@@ -116,15 +127,90 @@ public class HomeFragment extends Fragment {
if(isActive) {
progressBar.setVisibility(View.VISIBLE);
// Disable user interaction while progress bar is visible
Objects.requireNonNull(getActivity()).getWindow().setFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE,
requireActivity().getWindow().setFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE,
WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE);
} else if(progressBar.getVisibility() == View.VISIBLE) {
progressBar.setVisibility(View.GONE);
// Re-enable user interaction when progress bar is gone
Objects.requireNonNull(getActivity()).getWindow().clearFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE);
requireActivity().getWindow().clearFlags(WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE);
}
}
/**
*
* Then get the most recent event next and check if .
* If so, a new event is added.
*/
private void checkUpcomingEvent() {
refEventDates.orderByKey().limitToLast(1).addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
for(DataSnapshot ds : dataSnapshot.getChildren()) {
nextDateID = ds.getKey();
long epoch = Long.parseLong(nextDateID);
if(epoch < (System.currentTimeMillis() / 1000L)) {
addUpcomingEvent(epoch);
}
Date date = new Date(epoch * 1000L);
String s = new SimpleDateFormat("dd. MMMM yyyy", Locale.getDefault()).format(date);
nextDate.setText(s);
String sNextHostUID = (String) ds.child("gastgeber").getValue();
String sNextHost = (String)dsUsers.child(sNextHostUID).child("nickname").getValue();
nextHost.setText(sNextHost);
if(ds.hasChild("abstimmung_spiele")) {
games = new HashMap<>();
for(DataSnapshot dataSnapshot1 : ds.child("abstimmung_spiele").getChildren()) {
long curInt = (long)dataSnapshot1.getValue();
if(games.containsKey(curInt)) games.put(curInt, games.get(curInt)+1);
else games.put(curInt, 1);
}
}
}
setProgressBar(false);
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
Toast.makeText(getContext(), R.string.db_comm_err, Toast.LENGTH_SHORT).show();
}
});
}
/**
* Determines the date and host of the next event and writes the details to the database.
* If this was a real life app and not just an example project, it would be advisable to handle
* event setup automatically with scheduled functions running on the server (a possible
* solution could be Google Cloud Functions for Firebase).
* @param prevEventTimestamp Unix epoch time of the previous event
*/
private void addUpcomingEvent(long prevEventTimestamp) {
// Programmatically determine the host of the upcoming event by iterating through the list
// of registered users and comparing the epoch timestamps of their most recently hosted event.
// The lowest timestamp will determine the new host.
String nextHostUID = null;
long ll = 0;
for(DataSnapshot dataSnapshot : dsUsers.getChildren()) {
long ts = (long)dataSnapshot.child("zuletzt_gehostet").getValue();
if(ll == 0 || ts < ll) {
ll = ts;
nextHostUID = dataSnapshot.getKey();
}
}
// Calculate epoch timestamp of upcoming event
// It will take place exactly 1 week after the last event.
// 7 days * 24 hours * 60 minutes * 60 seconds = 604800
long nextEventTimestamp = prevEventTimestamp + 604800;
// Write to database
refEventDates.child(String.valueOf(nextEventTimestamp)).child("gastgeber").setValue(nextHostUID);
refUsers.child(nextHostUID).child("zuletzt_gehostet").setValue(nextEventTimestamp);
}
/**
* Displays a popup dialog with an text input field. The user is supposed to type in the title
* of a game that he would like to add to the database.
@@ -167,90 +253,18 @@ public class HomeFragment extends Fragment {
spinnerGames.setAdapter(adapter);
}
private void setValues() {
// Get details of upcoming event from database
refEventDates.orderByKey().limitToLast(1).addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
for(DataSnapshot ds : dataSnapshot.getChildren()) {
nextDateID = ds.getKey();
long epoch = Long.parseLong(nextDateID);
if(epoch < (System.currentTimeMillis() / 1000L)) {
addUpcomingEvent(epoch);
return;
}
Date date = new Date(epoch * 1000L);
String s = new SimpleDateFormat("dd. MMMM YYYY", Locale.getDefault()).format(date);
nextDate.setText(s);
String sNextHostUID = (String) ds.child("gastgeber").getValue();
String sNextHost = (String)dsUsers.child(sNextHostUID).child("nickname").getValue();
nextHost.setText(sNextHost + "'s place");
if(ds.hasChild("abstimmung_spiele")) {
games = new HashMap<>();
for(DataSnapshot dataSnapshot1 : ds.child("abstimmung_spiele").getChildren()) {
long curInt = (long)dataSnapshot1.getValue();
if(games.containsKey(curInt)) games.put(curInt, games.get(curInt)+1);
else games.put(curInt, 1);
}
}
}
updateGamesList();
setProgressBar(false);
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
Toast.makeText(getContext(), R.string.db_comm_err, Toast.LENGTH_SHORT).show();
}
});
private void updateUI() {
userNickname = (String)dsUsers.child(mUser.getUid()).child("nickname").getValue();
String sWelcome = userNickname + getString(R.string.welcome_back);
welcome.setText(sWelcome);
}
/**
* Determines the date and host of the next event and writes the details to the database.
* If this was a real life app and not just an example project, it would be advisable to handle
* event setup automatically with scheduled functions running on the server (a possible
* solution could be Google Cloud Functions for Firebase).
* @param prevEventTimestamp Unix epoch time of the previous event
*/
private void addUpcomingEvent(long prevEventTimestamp) {
// Programmatically determine the host of the upcoming event by iterating through the list
// of registered users and comparing the epoch timestamps of their most recently hosted event.
// The lowest timestamp will determine the new host.
String nextHostUID = null;
long ll = 0;
for(DataSnapshot dataSnapshot : dsUsers.getChildren()) {
long ts = (long)dataSnapshot.child("zuletzt_gehostet").getValue();
if(ll == 0 || ts < ll) {
ll = ts;
nextHostUID = dataSnapshot.getKey();
}
}
// Calculate epoch timestamp of upcoming event
// It will take place exactly 1 week after the last event.
// 7 days * 24 hours * 60 minutes * 60 seconds = 604800
long nextEventTimestamp = prevEventTimestamp + 604800;
// Write to database
refEventDates.child(String.valueOf(nextEventTimestamp)).child("gastgeber").setValue(nextHostUID);
}
/**
* Signs out the current Firebase user and switches to the login interface.
*/
private void signOutUser() {
FirebaseAuth.getInstance().signOut();
startActivity(new Intent(getActivity(), LoginActivity.class));
Objects.requireNonNull(getActivity()).finish();
requireActivity().finish();
}
}

477
app/src/main/java/com/example/iubhgamerapp/ui/RateFragment.java → app/src/main/java/com/example/iubhgamerapp/ui/RatingFragment.java Executable file → Normal file
View File

@@ -1,240 +1,239 @@
package com.example.iubhgamerapp.ui;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.RatingBar;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.fragment.app.Fragment;
import com.example.iubhgamerapp.R;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;
import com.google.firebase.database.DataSnapshot;
import com.google.firebase.database.DatabaseError;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.database.ValueEventListener;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
public class RateFragment extends Fragment {
private EventDate selectedEvent;
private FirebaseUser mUser;
private DatabaseReference refUsers, refEvents;
private View root;
private List<EventDate> eventDates;
private Map<String, String> users;
private Spinner spinnerPastEvents;
private RatingBar rbOverall, rbFood, rbHost;
private TextView tvHost;
private TextView tvOverallRatings, tvFoodRatings, tvHostRatings;
private Button btnRate;
public View onCreateView(@NonNull LayoutInflater inflater,
ViewGroup container, Bundle savedInstanceState) {
root = inflater.inflate(R.layout.fragment_rate, container, false);
spinnerPastEvents = root.findViewById(R.id.spinner_rating);
rbOverall = root.findViewById(R.id.ratingBar_overall);
rbFood = root.findViewById(R.id.ratingBar_food);
rbHost = root.findViewById(R.id.ratingBar_host);
tvHost = root.findViewById(R.id.textView_rateHost);
tvOverallRatings = root.findViewById(R.id.textView_rate1);
tvFoodRatings = root.findViewById(R.id.textView_rate2);
tvHostRatings = root.findViewById(R.id.textView_rate3);
btnRate = root.findViewById(R.id.rate);
// Set rate button listener
btnRate.setOnClickListener(v -> ratePastEvent());
// Set spinner listener
spinnerPastEvents.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
selectedEvent = eventDates.get(position);
rbOverall.setRating(selectedEvent.ownOverallRating);
rbFood.setRating(selectedEvent.ownFoodRating);
rbHost.setRating(selectedEvent.ownHostRating);
tvHost.setText("Host (" + selectedEvent.hostName + ")");
String sNoRatings = getString(R.string.zero_ratings);
String str1 = getString(R.string.other_ratings, selectedEvent.avgOverallRating, selectedEvent.overallRatingsCount);
tvOverallRatings.setText(selectedEvent.overallRatingsCount > 0 ? str1 : sNoRatings);
String str2 = getString(R.string.other_ratings, selectedEvent.avgFoodRating, selectedEvent.foodRatingsCount);
tvFoodRatings.setText(selectedEvent.foodRatingsCount > 0 ? str2 : sNoRatings);
String str3 = getString(R.string.other_ratings, selectedEvent.avgHostRating, selectedEvent.hostRatingsCount);
tvHostRatings.setText(selectedEvent.hostRatingsCount > 0 ? str3 : sNoRatings);
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
// Nothing to do here
}
});
// Connect to Firebase realtime database
mUser = FirebaseAuth.getInstance().getCurrentUser();
refUsers = FirebaseDatabase.getInstance().getReference().child("spieler");
refEvents = FirebaseDatabase.getInstance().getReference().child("termine");
// Get list of registered users from Firebase database
refUsers.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
// Save users in HashMap object (key = UID; value = nickname)
users = new HashMap<>();
for(DataSnapshot ds : dataSnapshot.getChildren()) {
users.put(ds.getKey(), (String)ds.child("nickname").getValue());
}
getPastEvents();
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
Toast.makeText(getContext(), R.string.db_comm_err, Toast.LENGTH_SHORT).show();
}
});
return root;
}
/**
* Writes the user's rating of the selected event to database.
*/
private void ratePastEvent() {
long ownOverallRating = (long)rbOverall.getRating();
long ownFoodRating = (long)rbFood.getRating();
long ownHostRating = (long)rbHost.getRating();
// Write ratings to database IF the user rated every required item
if(ownOverallRating > 0 && ownFoodRating > 0 && ownHostRating > 0) {
DatabaseReference refRatings = refEvents.child(String.valueOf(selectedEvent.epochTimestamp)).child("bewertungen");
refRatings.child("allgemein").child(mUser.getUid()).setValue(ownOverallRating);
refRatings.child("essen").child(mUser.getUid()).setValue(ownFoodRating);
refRatings.child("gastgeber").child(mUser.getUid()).setValue(ownHostRating);
}
// Otherwise, display error message
else {
Toast.makeText(getContext(), R.string.rate_error, Toast.LENGTH_SHORT).show();
}
}
/**
* Reads the most recent events from the database. The user can rate the overall experience,
* food & drinks as well as the event host.
* Only the last 3 events can be rated.
*/
private void getPastEvents() {
refEvents.orderByKey().limitToLast(4).addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
// Iterate through events to extract metadata
eventDates = new ArrayList<>();
for(DataSnapshot ds : dataSnapshot.getChildren()) {
// Check if the event date is actually in the future.
// Skip it, as only past events are unlocked for rating.
long epochTimestamp = Long.parseLong(ds.getKey());
if(epochTimestamp > (System.currentTimeMillis() / 1000L)) break;
// Extract event host user id
String hostUID = (String)ds.child("gastgeber").getValue();
// Extract individual rating data
Map<String, Long> overallRatings = new HashMap<>();
Map<String, Long> foodRatings = new HashMap<>();
Map<String, Long> hostRatings = new HashMap<>();
for(DataSnapshot dsOverallRatings : ds.child("bewertungen").child("allgemein").getChildren()) {
overallRatings.put(dsOverallRatings.getKey(), (long)dsOverallRatings.getValue());
}
for(DataSnapshot dsFoodRatings : ds.child("bewertungen").child("essen").getChildren()) {
foodRatings.put(dsFoodRatings.getKey(), (long)dsFoodRatings.getValue());
}
for(DataSnapshot dsHostRatings : ds.child("bewertungen").child("gastgeber").getChildren()) {
hostRatings.put(dsHostRatings.getKey(), (long)dsHostRatings.getValue());
}
// Add event to ArrayList to make data available to other methods
eventDates.add(new EventDate(epochTimestamp, hostUID, overallRatings, foodRatings, hostRatings));
}
// Update spinner; set selection to most recent event
List<String> spinnerEntries = new ArrayList<>();
for(int i = 0; i < eventDates.size(); i++) spinnerEntries.add(eventDates.get(i).getFormattedDate());
ArrayAdapter<String> adapter = new ArrayAdapter<>(root.getContext(),
android.R.layout.simple_spinner_item, spinnerEntries);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinnerPastEvents.setAdapter(adapter);
spinnerPastEvents.setSelection(adapter.getCount() - 1);
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
Toast.makeText(getContext(), R.string.db_comm_err, Toast.LENGTH_SHORT).show();
}
});
}
class EventDate {
final long epochTimestamp;
final long ownOverallRating, ownFoodRating, ownHostRating;
final int overallRatingsCount, foodRatingsCount, hostRatingsCount;
final long avgOverallRating, avgFoodRating, avgHostRating;
final String hostName;
EventDate(long epochTimestamp, String hostUID, Map<String, Long> overallRatings, Map<String, Long> foodRatings, Map<String, Long> hostRatings) {
final String ownUID = mUser.getUid();
this.epochTimestamp = epochTimestamp;
this.hostName = users.get(hostUID);
this.overallRatingsCount = overallRatings.size();
this.foodRatingsCount = foodRatings.size();
this.hostRatingsCount = hostRatings.size();
if(overallRatings.containsKey(ownUID)) ownOverallRating = overallRatings.get(ownUID);
else ownOverallRating = 0;
if(foodRatings.containsKey(ownUID)) ownFoodRating = foodRatings.get(ownUID);
else ownFoodRating = 0;
if(hostRatings.containsKey(ownUID)) ownHostRating = hostRatings.get(ownUID);
else ownHostRating = 0;
long temp = 0;
for(Map.Entry<String, Long> entry : overallRatings.entrySet()) temp += entry.getValue();
avgOverallRating = overallRatingsCount > 0 ? temp / overallRatingsCount : 0;
temp = 0;
for(Map.Entry<String, Long> entry : foodRatings.entrySet()) temp += entry.getValue();
avgFoodRating = foodRatingsCount > 0 ? temp / foodRatingsCount : 0;
temp = 0;
for(Map.Entry<String, Long> entry : hostRatings.entrySet()) temp += entry.getValue();
avgHostRating = hostRatingsCount > 0 ? temp / hostRatingsCount : 0;
}
String getFormattedDate() {
Date date = new Date(this.epochTimestamp * 1000L);
return new SimpleDateFormat("EEEE, dd. MMMM YYYY", Locale.getDefault()).format(date);
}
}
package com.example.iubhgamerapp.ui;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.RatingBar;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.fragment.app.Fragment;
import com.example.iubhgamerapp.R;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;
import com.google.firebase.database.DataSnapshot;
import com.google.firebase.database.DatabaseError;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import com.google.firebase.database.ValueEventListener;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
public class RatingFragment extends Fragment {
private EventDate selectedEvent;
private FirebaseUser mUser;
private DatabaseReference refUsers, refEvents;
private View root;
private List<EventDate> eventDates;
private Map<String, String> users;
private Spinner spinnerPastEvents;
private RatingBar rbOverall, rbFood, rbHost;
private TextView tvHost;
private TextView tvOverallRatings, tvFoodRatings, tvHostRatings;
public View onCreateView(@NonNull LayoutInflater inflater,
ViewGroup container, Bundle savedInstanceState) {
root = inflater.inflate(R.layout.fragment_rating, container, false);
spinnerPastEvents = root.findViewById(R.id.spinner_rating);
rbOverall = root.findViewById(R.id.ratingBar_overall);
rbFood = root.findViewById(R.id.ratingBar_food);
rbHost = root.findViewById(R.id.ratingBar_host);
tvHost = root.findViewById(R.id.textView_rateHost);
tvOverallRatings = root.findViewById(R.id.textView_rate1);
tvFoodRatings = root.findViewById(R.id.textView_rate2);
tvHostRatings = root.findViewById(R.id.textView_rate3);
Button btnRate = root.findViewById(R.id.rate);
// Set rate button listener
btnRate.setOnClickListener(v -> ratePastEvent());
// Set spinner listener
spinnerPastEvents.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
@Override
public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
selectedEvent = eventDates.get(position);
rbOverall.setRating(selectedEvent.ownOverallRating);
rbFood.setRating(selectedEvent.ownFoodRating);
rbHost.setRating(selectedEvent.ownHostRating);
tvHost.setText("Host (" + selectedEvent.hostName + ")");
String sNoRatings = getString(R.string.zero_ratings);
String str1 = getString(R.string.other_ratings, selectedEvent.avgOverallRating, selectedEvent.overallRatingsCount);
tvOverallRatings.setText(selectedEvent.overallRatingsCount > 0 ? str1 : sNoRatings);
String str2 = getString(R.string.other_ratings, selectedEvent.avgFoodRating, selectedEvent.foodRatingsCount);
tvFoodRatings.setText(selectedEvent.foodRatingsCount > 0 ? str2 : sNoRatings);
String str3 = getString(R.string.other_ratings, selectedEvent.avgHostRating, selectedEvent.hostRatingsCount);
tvHostRatings.setText(selectedEvent.hostRatingsCount > 0 ? str3 : sNoRatings);
}
@Override
public void onNothingSelected(AdapterView<?> parent) {
// Nothing to do here
}
});
// Connect to Firebase realtime database
mUser = FirebaseAuth.getInstance().getCurrentUser();
refUsers = FirebaseDatabase.getInstance().getReference().child("spieler");
refEvents = FirebaseDatabase.getInstance().getReference().child("termine");
// Get list of registered users from Firebase database
refUsers.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
// Save users in HashMap object (key = UID; value = nickname)
users = new HashMap<>();
for(DataSnapshot ds : dataSnapshot.getChildren()) {
users.put(ds.getKey(), (String)ds.child("nickname").getValue());
}
getPastEvents();
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
Toast.makeText(getContext(), R.string.db_comm_err, Toast.LENGTH_SHORT).show();
}
});
return root;
}
/**
* Writes the user's rating of the selected event to database.
*/
private void ratePastEvent() {
long ownOverallRating = (long)rbOverall.getRating();
long ownFoodRating = (long)rbFood.getRating();
long ownHostRating = (long)rbHost.getRating();
// Write ratings to database IF the user rated every required item
if(ownOverallRating > 0 && ownFoodRating > 0 && ownHostRating > 0) {
DatabaseReference refRatings = refEvents.child(String.valueOf(selectedEvent.epochTimestamp)).child("bewertungen");
refRatings.child("allgemein").child(mUser.getUid()).setValue(ownOverallRating);
refRatings.child("essen").child(mUser.getUid()).setValue(ownFoodRating);
refRatings.child("gastgeber").child(mUser.getUid()).setValue(ownHostRating);
}
// Otherwise, display error message
else {
Toast.makeText(getContext(), R.string.rate_error, Toast.LENGTH_SHORT).show();
}
}
/**
* Reads the most recent events from the database. The user can rate the overall experience,
* food & drinks as well as the event host.
* Only the last 3 events can be rated.
*/
private void getPastEvents() {
refEvents.orderByKey().limitToLast(4).addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
// Iterate through events to extract metadata
eventDates = new ArrayList<>();
for(DataSnapshot ds : dataSnapshot.getChildren()) {
// Check if the event date is actually in the future.
// Skip it, as only past events are unlocked for rating.
long epochTimestamp = Long.parseLong(ds.getKey());
if(epochTimestamp > (System.currentTimeMillis() / 1000L)) break;
// Extract event host user id
String hostUID = (String)ds.child("gastgeber").getValue();
// Extract individual rating data
Map<String, Long> overallRatings = new HashMap<>();
Map<String, Long> foodRatings = new HashMap<>();
Map<String, Long> hostRatings = new HashMap<>();
for(DataSnapshot dsOverallRatings : ds.child("bewertungen").child("allgemein").getChildren()) {
overallRatings.put(dsOverallRatings.getKey(), (long)dsOverallRatings.getValue());
}
for(DataSnapshot dsFoodRatings : ds.child("bewertungen").child("essen").getChildren()) {
foodRatings.put(dsFoodRatings.getKey(), (long)dsFoodRatings.getValue());
}
for(DataSnapshot dsHostRatings : ds.child("bewertungen").child("gastgeber").getChildren()) {
hostRatings.put(dsHostRatings.getKey(), (long)dsHostRatings.getValue());
}
// Add event to ArrayList to make data available to other methods
eventDates.add(new EventDate(epochTimestamp, hostUID, overallRatings, foodRatings, hostRatings));
}
// Update spinner; set selection to most recent event
List<String> spinnerEntries = new ArrayList<>();
for(int i = 0; i < eventDates.size(); i++) spinnerEntries.add(eventDates.get(i).getFormattedDate());
ArrayAdapter<String> adapter = new ArrayAdapter<>(root.getContext(),
android.R.layout.simple_spinner_item, spinnerEntries);
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
spinnerPastEvents.setAdapter(adapter);
spinnerPastEvents.setSelection(adapter.getCount() - 1);
}
@Override
public void onCancelled(@NonNull DatabaseError databaseError) {
Toast.makeText(getContext(), R.string.db_comm_err, Toast.LENGTH_SHORT).show();
}
});
}
class EventDate {
final long epochTimestamp;
final long ownOverallRating, ownFoodRating, ownHostRating;
final int overallRatingsCount, foodRatingsCount, hostRatingsCount;
final long avgOverallRating, avgFoodRating, avgHostRating;
final String hostName;
EventDate(long epochTimestamp, String hostUID, Map<String, Long> overallRatings, Map<String, Long> foodRatings, Map<String, Long> hostRatings) {
final String ownUID = mUser.getUid();
this.epochTimestamp = epochTimestamp;
this.hostName = users.get(hostUID);
this.overallRatingsCount = overallRatings.size();
this.foodRatingsCount = foodRatings.size();
this.hostRatingsCount = hostRatings.size();
if(overallRatings.containsKey(ownUID)) ownOverallRating = overallRatings.get(ownUID);
else ownOverallRating = 0;
if(foodRatings.containsKey(ownUID)) ownFoodRating = foodRatings.get(ownUID);
else ownFoodRating = 0;
if(hostRatings.containsKey(ownUID)) ownHostRating = hostRatings.get(ownUID);
else ownHostRating = 0;
long temp = 0;
for(Map.Entry<String, Long> entry : overallRatings.entrySet()) temp += entry.getValue();
avgOverallRating = overallRatingsCount > 0 ? temp / overallRatingsCount : 0;
temp = 0;
for(Map.Entry<String, Long> entry : foodRatings.entrySet()) temp += entry.getValue();
avgFoodRating = foodRatingsCount > 0 ? temp / foodRatingsCount : 0;
temp = 0;
for(Map.Entry<String, Long> entry : hostRatings.entrySet()) temp += entry.getValue();
avgHostRating = hostRatingsCount > 0 ? temp / hostRatingsCount : 0;
}
String getFormattedDate() {
Date date = new Date(this.epochTimestamp * 1000L);
return new SimpleDateFormat("EEEE, dd. MMMM yyyy", Locale.getDefault()).format(date);
}
}
}

4
app/src/main/res/layout/fragment_home.xml
View File

@@ -67,7 +67,7 @@
android:id="@+id/text_home4"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="The next event will be held on"
android:text="The next event will be on"
android:textAlignment="center"
android:textSize="14sp" />
@@ -84,7 +84,7 @@
android:id="@+id/text_home3"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="at"
android:text="hosted by"
android:textAlignment="center"
android:textSize="14sp" />

266
app/src/main/res/layout/fragment_rate.xml → app/src/main/res/layout/fragment_rating.xml Executable file → Normal file
View File

@@ -1,134 +1,134 @@
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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">
<androidx.cardview.widget.CardView
android:id="@+id/cardView4"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="24dp"
android:layout_marginLeft="24dp"
android:layout_marginTop="24dp"
android:layout_marginEnd="24dp"
android:layout_marginRight="24dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginStart="8dp"
android:layout_marginLeft="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:layout_marginBottom="8dp"
android:gravity="center"
android:orientation="vertical">
<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Select past event" />
<Spinner
android:id="@+id/spinner_rating"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"/>
<View
android:id="@+id/divider4"
android:layout_width="match_parent"
android:layout_height="8dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
android:background="?android:attr/listDivider" />
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Overall" />
<RatingBar
android:id="@+id/ratingBar_overall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:numStars="5"
android:stepSize="1" />
<TextView
android:id="@+id/textView_rate1"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<View
android:id="@+id/divider2"
android:layout_width="match_parent"
android:layout_height="8dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
android:background="?android:attr/listDivider" />
<TextView
android:id="@+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Food and Drinks" />
<RatingBar
android:id="@+id/ratingBar_food"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:numStars="5"
android:stepSize="1" />
<TextView
android:id="@+id/textView_rate2"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<View
android:id="@+id/divider3"
android:layout_width="match_parent"
android:layout_height="8dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
android:background="?android:attr/listDivider" />
<TextView
android:id="@+id/textView_rateHost"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<RatingBar
android:id="@+id/ratingBar_host"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:numStars="5"
android:stepSize="1" />
<TextView
android:id="@+id/textView_rate3"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<Button
android:id="@+id/rate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="24dp"
android:text="@string/title_rate" />
</LinearLayout>
</androidx.cardview.widget.CardView>
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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">
<androidx.cardview.widget.CardView
android:id="@+id/cardView4"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="24dp"
android:layout_marginLeft="24dp"
android:layout_marginTop="24dp"
android:layout_marginEnd="24dp"
android:layout_marginRight="24dp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginStart="8dp"
android:layout_marginLeft="8dp"
android:layout_marginTop="8dp"
android:layout_marginEnd="8dp"
android:layout_marginRight="8dp"
android:layout_marginBottom="8dp"
android:gravity="center"
android:orientation="vertical">
<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Select past event" />
<Spinner
android:id="@+id/spinner_rating"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"/>
<View
android:id="@+id/divider4"
android:layout_width="match_parent"
android:layout_height="8dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
android:background="?android:attr/listDivider" />
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Overall" />
<RatingBar
android:id="@+id/ratingBar_overall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:numStars="5"
android:stepSize="1" />
<TextView
android:id="@+id/textView_rate1"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<View
android:id="@+id/divider2"
android:layout_width="match_parent"
android:layout_height="8dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
android:background="?android:attr/listDivider" />
<TextView
android:id="@+id/textView3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Food and Drinks" />
<RatingBar
android:id="@+id/ratingBar_food"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:numStars="5"
android:stepSize="1" />
<TextView
android:id="@+id/textView_rate2"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<View
android:id="@+id/divider3"
android:layout_width="match_parent"
android:layout_height="8dp"
android:layout_marginTop="8dp"
android:layout_marginBottom="8dp"
android:background="?android:attr/listDivider" />
<TextView
android:id="@+id/textView_rateHost"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<RatingBar
android:id="@+id/ratingBar_host"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:numStars="5"
android:stepSize="1" />
<TextView
android:id="@+id/textView_rate3"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<Button
android:id="@+id/rate"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="24dp"
android:text="@string/title_rate" />
</LinearLayout>
</androidx.cardview.widget.CardView>
</androidx.constraintlayout.widget.ConstraintLayout>

4
app/src/main/res/navigation/mobile_navigation.xml
View File

@@ -13,9 +13,9 @@
<fragment
android:id="@+id/navigation_rate"
android:name="com.example.iubhgamerapp.ui.RateFragment"
android:name="com.example.iubhgamerapp.ui.RatingFragment"
android:label="@string/title_rate"
tools:layout="@layout/fragment_rate" />
tools:layout="@layout/fragment_rating" />
<fragment
android:id="@+id/navigation_chat"