OnSwipe to Recycler items added

Author: A. Apesteguia

app/src/main/java/com/codebinars/a2048game/database/DBHelper.java

@@ -107,7 +107,8 @@ public List<ScoreDisplay> getAllScores() {
                 "SELECT "+ "SCORE."+COLUMN_ID+", "+COLUMN_SCORE+", "+COLUMN_DATETIME+", "+COLUMN_DURATION+", "+
                  COLUMN_USERNAME+", "+COLUMN_IMAGE+", "+COLUMN_COUNTRY +
                  " FROM "+USER_TABLE +" USER"+
-                 " INNER JOIN "+SCORE_TABLE+ " SCORE" + " ON "+ "USER."+COLUMN_ID +" = "+COLUMN_USERNAME_ID;
+                 " INNER JOIN "+SCORE_TABLE+ " SCORE" + " ON "+ "USER."+COLUMN_ID +" = "+COLUMN_USERNAME_ID +
+                 " ORDER BY " + COLUMN_SCORE + " DESC";
         Cursor cursor = db.rawQuery(queryAllScores, null);
         if (cursor.moveToNext()) {
             do{

app/src/main/java/com/codebinars/a2048game/scoresView/ScoreListRecycler.java

@@ -11,7 +11,9 @@
 import android.widget.EditText;
 import android.widget.Spinner;
 
+import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.recyclerview.widget.ItemTouchHelper;
 import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
 
@@ -54,6 +56,7 @@ protected void onCreate(@Nullable Bundle savedInstanceState) {
         recyclerViewScores.setLayoutManager(new LinearLayoutManager(this));
         checkScoreList();
         adapter = new ScoreListAdapter(listScores);
+        new ItemTouchHelper(itemTouchHelperCallback).attachToRecyclerView(recyclerViewScores);
         recyclerViewScores.setAdapter(adapter);
         adapter.setOnItemclickListener(new OnItemClickListener() {
             @Override
@@ -93,6 +96,19 @@ public void onTweetClick(int position) {
         scoreSpinner.setOnItemSelectedListener(this);
     }
 
+    ItemTouchHelper.SimpleCallback itemTouchHelperCallback = new ItemTouchHelper.SimpleCallback(0, ItemTouchHelper.RIGHT | ItemTouchHelper.LEFT) { //Type of movement, DIRECTION
+        @Override
+        public boolean onMove(@NonNull RecyclerView recyclerView, @NonNull RecyclerView.ViewHolder viewHolder, @NonNull RecyclerView.ViewHolder target) {
+            return false;
+        }
+        @Override
+        public void onSwiped(@NonNull RecyclerView.ViewHolder viewHolder, int direction) {
+            dbHelper.deleteScoreByID(listScores.get(viewHolder.getAdapterPosition()).getID());
+            listScores.remove(viewHolder.getAdapterPosition());
+            adapter.notifyDataSetChanged();
+        }
+    };
+
     private void removeItem(int position) {
         dbHelper.deleteScoreByID(listScores.get(position).getID());
         listScores.remove(position);