app/src/main/AndroidManifest.xml

@@ -13,7 +13,7 @@
         android:supportsRtl="true"
 
         android:theme="@style/AppTheme"
-        tools:ignore="GoogleAppIndexingWarning">
+        tools:ignore="AllowBackup,GoogleAppIndexingWarning">
 
         <activity android:name=".view.LoginActivity" />
 
@@ -22,6 +22,16 @@
             android:label="@string/title_activity_new_board"
             android:theme="@style/AppTheme.NoActionBar" />
 
+        <activity
+            android:name=".view.BoardViewActivity"
+            android:theme="@style/AppTheme.NoActionBar" />
+
+        <activity
+            android:name=".view.WListsListActivity"
+            android:label="WList"
+            android:theme="@style/AppTheme.NoActionBar"/>
+
+
         <activity
             android:name=".view.BoardsListsActivity"
             android:theme="@style/AppTheme.NoActionBar">
@@ -31,11 +41,6 @@
             </intent-filter>
         </activity>
 
-        <activity android:name=".view.BoardViewActivity"
-            android:theme="@style/Theme.AppCompat.Light.NoActionBar" />
-        <activity android:name=".view.WListsListActivity"
-            android:label="WList"
-            android:theme="@style/AppTheme.NoActionBar"/>
     </application>
 
 </manifest>

app/src/main/java/it/unisannio/ding/ids/wedroid/app/data/dao/WListDao.java

@@ -19,7 +19,7 @@ public interface WListDao {
     LiveData<List<WList>> getAllWList();
 
     @Insert(onConflict = OnConflictStrategy.REPLACE)
-    /**Completable**/ void insert(WList wList);
+     void insert(WList wList);
 
     @Delete
     void delete(WList wList);

app/src/main/java/it/unisannio/ding/ids/wedroid/app/data/repository/WListRepository.kt

@@ -1,6 +1,8 @@
 package it.unisannio.ding.ids.wedroid.app.data.repository
 
 import android.util.Log
+
+import androidx.lifecycle.LiveData
 import it.unisannio.ding.ids.wedroid.app.data.dao.WListDao
 import it.unisannio.ding.ids.wedroid.app.data.entity.WList
 import it.unisannio.ding.ids.wedroid.app.data.entity.convert
@@ -18,8 +20,9 @@ class WListRepository(
     private val service: ListService,
     private val reader: PreferenceReader
 ) {
-    val allWLists by lazy{
+
-        dao.getAllWList()
+    val allWLists: LiveData<MutableList<WList>> by lazy{
+        dao.allWList
     }
 
     init {
@@ -46,7 +49,7 @@ class WListRepository(
             })
     }
 
-    private suspend fun synchronizeCallback(
+    private fun synchronizeCallback(
         response: Response<MutableList<it.unisannio.ding.ids.wedroid.wrapper.entity.WList>>)
     {
         if (!response.isSuccessful) {
@@ -90,19 +93,21 @@ class WListRepository(
 
     }
 
-    private suspend fun addNewWListToDb(wLists: Collection<WList>) {
+    private fun addNewWListToDb(wLists: Collection<WList>) {
         wLists.forEach {
             dao.insert(it)
         }
     }
 
-    private suspend fun removeOldWListsFromDb(wLists: Collection<WList>) {
+
+    private fun removeOldWListsFromDb(wLists: Collection<WList>) {
         allWLists.value?.minus(wLists)
             ?.forEach {
                 dao.delete(it)
             }
     }
 
+    @Suppress("NULLABILITY_MISMATCH_BASED_ON_JAVA_ANNOTATIONS")
     private fun logNetworkError(message: String?) {
         Log.e("RETROFIT", message)
     }

app/src/main/java/it/unisannio/ding/ids/wedroid/app/util/ServicesFactory.kt

@@ -1,17 +1,10 @@
 package it.unisannio.ding.ids.wedroid.app.util
 
-import it.unisannio.ding.ids.wedroid.wrapper.api.BoardService
+import it.unisannio.ding.ids.wedroid.wrapper.api.*
-import it.unisannio.ding.ids.wedroid.wrapper.api.CardCommentService
-import it.unisannio.ding.ids.wedroid.wrapper.api.CardService
-import it.unisannio.ding.ids.wedroid.wrapper.api.ChecklistService
-import it.unisannio.ding.ids.wedroid.wrapper.api.ListService
-import it.unisannio.ding.ids.wedroid.wrapper.api.SwimlanesService
-import it.unisannio.ding.ids.wedroid.wrapper.api.UserService
 import okhttp3.OkHttpClient
 import retrofit2.Retrofit
 import retrofit2.converter.gson.GsonConverterFactory
 
-
 class ServicesFactory(
     reader: PreferenceReader
 ) {

app/src/main/java/it/unisannio/ding/ids/wedroid/app/util/SharedPreferenceHelper.kt

@@ -2,8 +2,7 @@ package it.unisannio.ding.ids.wedroid.app.util
 
 import android.content.Context
 
-class SharedPreferenceHelper(context: Context) : PreferenceReader, PreferenceWriter {
+class SharedPreferenceHelper(context : Context) : PreferenceReader, PreferenceWriter {
-
     private val sp = context.getSharedPreferences("userinfo", Context.MODE_PRIVATE)
 
     override fun getBaseUrl(): String? {
@@ -21,6 +20,7 @@ class SharedPreferenceHelper(context: Context) : PreferenceReader, PreferenceWri
     override fun setBaseUrl(baseUrl: String?) {
         val editor = sp.edit()
         editor.putString("url", baseUrl).apply()
+
            }
 
     override fun setUserId(userId: String?) {
@@ -42,4 +42,3 @@ class SharedPreferenceHelper(context: Context) : PreferenceReader, PreferenceWri
         editor.putString("boardId", token).apply()
     }
 }
-

app/src/main/java/it/unisannio/ding/ids/wedroid/app/view/BoardViewActivity.java

@@ -14,7 +14,7 @@ import android.widget.Toast;
 import androidx.annotation.Nullable;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.appcompat.widget.Toolbar;
-
+import androidx.swiperefreshlayout.widget.SwipeRefreshLayout;
 import org.jetbrains.annotations.NotNull;
 
 import java.util.ArrayList;
@@ -43,6 +43,7 @@ public class BoardViewActivity extends AppCompatActivity {
     private ServicesFactory service;
     private Toolbar myToolbar;
     private Board board;
+    private SwipeRefreshLayout swipeRefreshLayout;
 
     @Override
     protected void onCreate(@Nullable Bundle savedInstanceState) {
@@ -51,6 +52,9 @@ public class BoardViewActivity extends AppCompatActivity {
         myToolbar = findViewById(R.id.my_toolbar);
         setSupportActionBar(myToolbar);
 
+        swipeRefreshLayout = findViewById(R.id.pullToRefresh);
+        swipeRefreshLayout.setRefreshing(false);
+
         Intent i = getIntent();
         idBoard= i.getStringExtra("idBoard");
 
@@ -80,6 +84,14 @@ public class BoardViewActivity extends AppCompatActivity {
                 startActivityForResult(i, WLISTS_REQUEST);
             }
         });
+
+        swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
+            @Override
+            public void onRefresh() {
+                initializeUI(idBoard);
+                swipeRefreshLayout.setRefreshing(false);
+            }
+        });
     }
 
     private void initializeUI(String idBoard) {
@@ -87,15 +99,23 @@ public class BoardViewActivity extends AppCompatActivity {
         service.getBoardService().getBoard(idBoard).enqueue(new Callback<Board>() {
             @Override
             public void onResponse(@NotNull Call<Board> call, @NotNull Response<Board> response) {
+                assert response.body() != null;
                 board = response.body();
-
+                if (board.getId()==null)  {
+                    Toast.makeText(
+                            getApplicationContext(),
+                            getApplicationContext().getString(R.string.board_deleted),
+                            Toast.LENGTH_LONG)
+                            .show();
+                    getListsButton.setEnabled(false);
+                } else {
                     Objects.requireNonNull(getSupportActionBar()).setTitle(board.getTitle());
                     myToolbar.setBackgroundColor(Color.parseColor(encodeColor(
                             board.getBackgroundColor().toString())));
 
                     boardTitle = board.getTitle();
 
-                boardColor= Color.parseColor(encodeColor(
+                    boardColor = Color.parseColor(encodeColor(
                             board.getBackgroundColor().toString()));
 
                     Drawable background = getListsButton.getBackground();
@@ -105,28 +125,35 @@ public class BoardViewActivity extends AppCompatActivity {
                     description.setText(board.getDescription());
                     permission.setText(board.getPermission().toString());
                     members.setText("");
-                for(int i =0; i<board.getMembers().size(); i++){
+                    for (int i = 0; i < board.getMembers().size(); i++) {
                         replaceIDUserToUsername(board.getMembers().get(i).getUserId());
                     }
-                creationDate.append("\n" + board.getCreatedAt());
+
-                lastModificationDate.append("\n" + board.getModifiedAt());
+                    creationDate.setText(R.string.created_at);
+                    creationDate.append("\n"
+                            + board.getCreatedAt());
+                    lastModificationDate.setText(R.string.modified_at);
+                    lastModificationDate.append("\n"
+                              + board.getModifiedAt());
 
                     divider1.setBackgroundColor(boardColor);
                     divider2.setBackgroundColor(boardColor);
                     divider3.setBackgroundColor(boardColor);
 
                     ArrayList<String> labelsTitle = new ArrayList<>();
-                for (int i=0; i<board.getLabels().size(); i++){
+                    for (int i = 0; i < board.getLabels().size(); i++) {
                         labelsTitle.add(board.getLabels().get(i).getName());
                     }
                     ArrayAdapter<String> adapter = new ArrayAdapter<>(getApplicationContext(),
                             android.R.layout.simple_list_item_1, labelsTitle);
                     listView.setAdapter(adapter);
                 }
-
+            }
                 @Override
-            public void onFailure(@NotNull Call<Board> call, @NotNull Throwable t) {
+                public void onFailure (@NotNull Call < Board > call, @NotNull Throwable t){
-                //TODO
+                    Toast.makeText(getApplicationContext(),
+                            getApplicationContext().getString(R.string.board_deleted),
+                            Toast.LENGTH_LONG).show();
                 }
         });
     }

app/src/main/java/it/unisannio/ding/ids/wedroid/app/view/WListsListActivity.java

@@ -22,10 +22,11 @@ import java.util.List;
 import java.util.Objects;
 
 import it.unisannio.ding.ids.wedroid.app.R;
+
+import it.unisannio.ding.ids.wedroid.app.viewmodel.WListsListViewModel;
 import it.unisannio.ding.ids.wedroid.app.data.entity.WList;
 import it.unisannio.ding.ids.wedroid.app.util.SharedPreferenceHelper;
 import it.unisannio.ding.ids.wedroid.app.view.adapter.WListsAdapter;
-import it.unisannio.ding.ids.wedroid.app.viewModel.WListsListViewModel;
 
 public class WListsListActivity extends AppCompatActivity {
 

app/src/main/java/it/unisannio/ding/ids/wedroid/app/view/adapter/BoardsListAdapter.kt

@@ -38,9 +38,11 @@ class BoardsListAdapter internal constructor(
         holder.boardTitle.text = board.title
 
         holder.itemView.setOnClickListener {
-            val intent = Intent(it.context, BoardViewActivity::class.java)
+
+            val intent = Intent(holder.itemView.context, BoardViewActivity::class.java)
             intent.putExtra("idBoard", board.id)
-            it.context.startActivity(intent)
+            holder.itemView.context.startActivity(intent)
+
         }
     }
 

app/src/main/java/it/unisannio/ding/ids/wedroid/app/viewmodel/WListsListViewModel.java

@@ -0,0 +1,47 @@
+package it.unisannio.ding.ids.wedroid.app.viewmodel;
+
+import android.app.Application;
+
+import androidx.annotation.NonNull;
+import androidx.lifecycle.AndroidViewModel;
+import androidx.lifecycle.LiveData;
+
+import java.util.List;
+
+import it.unisannio.ding.ids.wedroid.app.data.database.WListDatabase;
+import it.unisannio.ding.ids.wedroid.app.data.entity.WList;
+import it.unisannio.ding.ids.wedroid.app.data.repository.WListRepository;
+import it.unisannio.ding.ids.wedroid.app.util.PreferenceReader;
+import it.unisannio.ding.ids.wedroid.app.util.ServicesFactory;
+import it.unisannio.ding.ids.wedroid.app.util.SharedPreferenceHelper;
+
+
+public class WListsListViewModel extends AndroidViewModel {
+    private WListRepository wListRepository;
+    private LiveData<List<WList>> allWLists;
+
+    public WListsListViewModel(@NonNull Application application) {
+        super(application);
+        PreferenceReader reader = new SharedPreferenceHelper(application);
+        wListRepository = new WListRepository(
+                WListDatabase.getDatabase(application).wListDao(),
+                ServicesFactory.Companion.getInstance(reader).getListService(),
+                reader);
+        allWLists = wListRepository.getAllWLists();
+    }
+
+    public  LiveData<List<WList>> getAllWLists(){
+        return allWLists;
+    }
+
+    public void deleteWList(int position, String idBoard) {
+        List<WList> wList = allWLists.getValue();
+
+        if (wList != null)
+            wListRepository.deleteWList(idBoard, wList.get(position).getId());
+    }
+
+    public void refresh() {
+        wListRepository.synchronize();
+    }
+}

app/src/main/res/layout/activity_board_view.xml

@@ -1,16 +1,29 @@
 <?xml version="1.0" encoding="utf-8"?>
-<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+
-    xmlns:app="http://schemas.android.com/apk/res-auto"
+<androidx.swiperefreshlayout.widget.SwipeRefreshLayout xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:id="@+id/pullToRefresh"
+    app:layout_constraintBottom_toBottomOf="parent"
+    app:layout_constraintEnd_toEndOf="parent"
+    app:layout_constraintStart_toStartOf="parent"
+    app:layout_constraintTop_toTopOf="parent">
+
+    <ScrollView
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:scrollIndicators="right"
         android:scrollbarStyle="insideOverlay"
         android:scrollbars="vertical">
+
+
         <LinearLayout
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:orientation="vertical">
 
+
             <androidx.appcompat.widget.Toolbar
                 android:id="@+id/my_toolbar"
                 android:layout_width="match_parent"
@@ -195,4 +208,5 @@
 
             </androidx.constraintlayout.widget.ConstraintLayout>
         </LinearLayout>
-</ScrollView>
+    </ScrollView>
+</androidx.swiperefreshlayout.widget.SwipeRefreshLayout>

app/src/main/res/values/strings.xml

@@ -21,6 +21,7 @@
     <string name="on_null_new_board_name">There was a problem with the name of the new board</string>
     <string name="on_add_new_board_error">It was not possible to add a new board</string>
     <string name="on_add_new_board_empty_name">Name cannot be empty</string>
+    <string name="board_deleted">The selected board has been deleted</string>
 
     <string-array name="board_background_colors">
         <item>Belize</item>