From 8c885882dc0642f2dbf313980441911edd9f9cc7 Mon Sep 17 00:00:00 2001
From: Matthew Wong <wongma@protonmail.ch>
Date: Wed, 1 Jul 2015 19:31:11 -0400
Subject: Make selectedItems Set instead of SparseBooleanArray

---
 .../pwdstore/utils/PasswordRecyclerAdapter.java    | 32 +++++++++-------------
 app/src/main/res/drawable/selected_rectangle.xml   |  2 +-
 2 files changed, 14 insertions(+), 20 deletions(-)

diff --git a/app/src/main/java/com/zeapo/pwdstore/utils/PasswordRecyclerAdapter.java b/app/src/main/java/com/zeapo/pwdstore/utils/PasswordRecyclerAdapter.java
index 5ad1b890..857c8276 100644
--- a/app/src/main/java/com/zeapo/pwdstore/utils/PasswordRecyclerAdapter.java
+++ b/app/src/main/java/com/zeapo/pwdstore/utils/PasswordRecyclerAdapter.java
@@ -1,12 +1,9 @@
 package com.zeapo.pwdstore.utils;
 
 import android.graphics.Color;
-import android.support.v7.app.AppCompatActivity;
 import android.support.v7.view.ActionMode;
-import android.support.v7.widget.PopupMenu;
 import android.support.v7.widget.RecyclerView;
 import android.util.Log;
-import android.util.SparseBooleanArray;
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuItem;
@@ -19,12 +16,14 @@ import com.zeapo.pwdstore.PasswordStore;
 import com.zeapo.pwdstore.R;
 
 import java.util.ArrayList;
+import java.util.Set;
+import java.util.TreeSet;
 
 public class PasswordRecyclerAdapter extends RecyclerView.Adapter<PasswordRecyclerAdapter.ViewHolder> {
     private final PasswordStore activity;
     private final ArrayList<PasswordItem> values;
     private final PasswordFragment.OnFragmentInteractionListener listener;
-    private final SparseBooleanArray selectedItems;
+    private final Set<Integer> selectedItems;
     private ActionMode mActionMode;
 
     // Provide a reference to the views for each data item
@@ -50,7 +49,7 @@ public class PasswordRecyclerAdapter extends RecyclerView.Adapter<PasswordRecycl
         this.values = values;
         this.activity = activity;
         this.listener = listener;
-        selectedItems = new SparseBooleanArray();
+        selectedItems = new TreeSet<>();
     }
 
     // Create new views (invoked by the layout manager)
@@ -98,7 +97,7 @@ public class PasswordRecyclerAdapter extends RecyclerView.Adapter<PasswordRecycl
             public void onClick(View v) {
                 if (mActionMode != null) {
                     toggleSelection(holder.position);
-                    if (selectedItems.size() == 0) {
+                    if (selectedItems.isEmpty()) {
                         mActionMode.finish();
                     }
                 } else {
@@ -114,13 +113,13 @@ public class PasswordRecyclerAdapter extends RecyclerView.Adapter<PasswordRecycl
                     return false;
                 }
                 toggleSelection(holder.position);
-                // Start the CAB using the ActionMode.Callback defined above
+                // Start the CAB using the ActionMode.Callback
                 mActionMode = activity.startSupportActionMode(mActionModeCallback);
                 return true;
             }
         });
 
-        holder.view.setSelected(selectedItems.get(position));
+        holder.view.setSelected(selectedItems.contains(position));
 
     }
 
@@ -146,10 +145,8 @@ public class PasswordRecyclerAdapter extends RecyclerView.Adapter<PasswordRecycl
         public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
             switch (item.getItemId()) {
                 case R.id.menu_delete_password:
-                    for (int i = 0; i < selectedItems.size(); i++) {
-                        if (selectedItems.valueAt(i)) {
-                            activity.deletePassword(PasswordRecyclerAdapter.this, selectedItems.keyAt(i));
-                        }
+                    for (int position : selectedItems) {
+                        activity.deletePassword(PasswordRecyclerAdapter.this, position);
                     }
                     mode.finish(); // Action picked, so close the CAB
                     return true;
@@ -197,14 +194,11 @@ public class PasswordRecyclerAdapter extends RecyclerView.Adapter<PasswordRecycl
         this.notifyItemRemoved(position);
     }
 
-    public void toggleSelection(int pos) {
-        if (selectedItems.get(pos, false)) {
-            selectedItems.delete(pos);
+    public void toggleSelection(int position) {
+        if (!selectedItems.remove(position)) {
+            selectedItems.add(position);
         }
-        else {
-            selectedItems.put(pos, true);
-        }
-        notifyItemChanged(pos);
+        notifyItemChanged(position);
     }
 
 }
\ No newline at end of file
diff --git a/app/src/main/res/drawable/selected_rectangle.xml b/app/src/main/res/drawable/selected_rectangle.xml
index bd3c40ae..ec8d2ad8 100644
--- a/app/src/main/res/drawable/selected_rectangle.xml
+++ b/app/src/main/res/drawable/selected_rectangle.xml
@@ -13,7 +13,7 @@
     <item android:bottom="2dp" android:left="1dp" android:right="1dp">
         <shape android:shape="rectangle"   android:dither="true">
             <corners android:radius="2dp" />
-            <solid android:color="@color/grey_100" />
+            <solid android:color="@color/blue_grey_100" />
 
             <padding android:bottom="2dp" android:left="1dp"/>
         </shape>
-- 
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