add delete and refresh

- add swipe to delete
- add pull to refresh

app/build.gradle

@@ -54,6 +54,8 @@ dependencies {
     api "org.jetbrains.kotlinx:kotlinx-coroutines-android:$rootProject.coroutines"
     // UI
     implementation "com.google.android.material:material:$rootProject.materialVersion"
+    implementation "androidx.swiperefreshlayout:swiperefreshlayout:1.0.0"
+
 
 
     // TESTING

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

@@ -4,7 +4,9 @@ import android.os.Bundle
 import androidx.appcompat.app.AppCompatActivity
 import androidx.lifecycle.Observer
 import androidx.lifecycle.ViewModelProvider
+import androidx.recyclerview.widget.ItemTouchHelper
 import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
 import it.unisannio.ding.ids.wedroid.app.R
 import it.unisannio.ding.ids.wedroid.app.view.adapter.BoardsListAdapter
 import it.unisannio.ding.ids.wedroid.app.viewmodel.BoardsListViewModel
@@ -25,14 +27,45 @@ class BoardsListsActivity : AppCompatActivity() {
         boardList.adapter = adapter
         boardList.layoutManager = LinearLayoutManager(this)
 
+        swipeLeftToDelete()
+
+        pullToRefresh.setColorSchemeColors(getColor(R.color.colorAccent))
+
         viewModel.allBoards.observe(this, Observer {
             it.let { adapter.setBoards(it) }
+            pullToRefresh.isRefreshing = false
         })
 
-        fab.setOnClickListener { view ->
+        fab.setOnClickListener {
             viewModel.insertBoard("New board")
         }
+
+        pullToRefresh.setOnRefreshListener {
+            viewModel.refresh()
         }
 
     }
 
+    private fun swipeLeftToDelete() {
+        val swipeToDelete = ItemTouchHelper(
+            object : ItemTouchHelper.SimpleCallback(
+                0, ItemTouchHelper.LEFT
+            ) {
+                override fun onMove(
+                    recyclerView: RecyclerView,
+                    viewHolder: RecyclerView.ViewHolder,
+                    target: RecyclerView.ViewHolder
+                ): Boolean {
+                    return false
+                }
+
+                override fun onSwiped(viewHolder: RecyclerView.ViewHolder, direction: Int) {
+                    val pos = viewHolder.adapterPosition
+                    viewModel.deleteBoard(pos)
+                }
+            })
+
+        swipeToDelete.attachToRecyclerView(boardList)
+    }
+}
+

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

@@ -38,7 +38,11 @@ public class BoardsListViewModel extends AndroidViewModel {
         repository.insertBoard(title);
     }
 
-    public void deleteBoard(String id) {
+    public void deleteBoard(int position) {
-        repository.deleteBoard(id);
+        repository.deleteBoard(allBoards.getValue().get(position).getId());
+    }
+
+    public void refresh() {
+        repository.synchronize();
     }
 }

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

@@ -7,6 +7,14 @@
     app:layout_behavior="@string/appbar_scrolling_view_behavior"
     tools:context=".view.BoardsListsActivity"
     tools:showIn="@layout/activity_boards_lists">
+    <androidx.swiperefreshlayout.widget.SwipeRefreshLayout
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        android:id="@+id/pullToRefresh"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent">
 
     <androidx.recyclerview.widget.RecyclerView
         android:layout_width="0dp"
@@ -16,4 +24,6 @@
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
+
+    </androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
 </androidx.constraintlayout.widget.ConstraintLayout>