Abstract the key profile list away from MainActivity

app/src/main/java/me/impy/aegis/KeyProfileAdapter.java

@@ -28,13 +28,29 @@ public class KeyProfileAdapter extends RecyclerView.Adapter<KeyProfileAdapter.Ke
     private Handler _uiHandler;
     private static Listener _listener;
 
-    public KeyProfileAdapter(ArrayList<KeyProfile> keyProfiles, Listener listener) {
-        _keyProfiles = keyProfiles;
+    public KeyProfileAdapter(Listener listener) {
+        _keyProfiles = new ArrayList<>();
         _holders = new ArrayList<>();
         _uiHandler = new Handler();
         _listener = listener;
     }
 
+    public void addKey(KeyProfile profile) {
+        _keyProfiles.add(profile);
+        notifyDataSetChanged();
+    }
+
+    public void addKeys(List<KeyProfile> profiles) {
+        _keyProfiles.addAll(profiles);
+        notifyDataSetChanged();
+    }
+
+    public void removeKey(KeyProfile profile) {
+        int position = _keyProfiles.indexOf(profile);
+        _keyProfiles.remove(position);
+        notifyItemRemoved(position);
+    }
+
     @Override
     public void onItemDismiss(int position) {
 

app/src/main/java/me/impy/aegis/MainActivity.java

@@ -51,7 +51,6 @@ public class MainActivity extends AppCompatActivity implements KeyProfileAdapter
     private static final int CODE_PREFERENCES = 5;
 
     private KeyProfileAdapter _keyProfileAdapter;
-    private ArrayList<KeyProfile> _keyProfiles;
     private DatabaseManager _db;
 
     private boolean _nightMode = false;
@@ -113,8 +112,7 @@ public class MainActivity extends AppCompatActivity implements KeyProfileAdapter
         LinearLayoutManager mLayoutManager = new LinearLayoutManager(this);
         rvKeyProfiles.setLayoutManager(mLayoutManager);
 
-        _keyProfiles = new ArrayList<>();
-        _keyProfileAdapter = new KeyProfileAdapter(_keyProfiles, this);
+        _keyProfileAdapter = new KeyProfileAdapter(this);
         if (_db.isDecrypted()) {
             loadKeyProfiles();
         }
@@ -282,8 +280,7 @@ public class MainActivity extends AppCompatActivity implements KeyProfileAdapter
             return;
         }
 
-        _keyProfiles.add(profile);
-        _keyProfileAdapter.notifyDataSetChanged();
+        _keyProfileAdapter.addKey(profile);
     }
 
     private void onDoIntroResult(int resultCode, Intent data) {
@@ -400,9 +397,7 @@ public class MainActivity extends AppCompatActivity implements KeyProfileAdapter
                     Toast.makeText(this, "An error occurred while trying to delete an entry", Toast.LENGTH_SHORT).show();
                     return;
                 }
-                int position = _keyProfiles.indexOf(profile);
-                _keyProfiles.remove(profile);
-                _keyProfileAdapter.notifyItemRemoved(position);
+                _keyProfileAdapter.removeKey(profile);
             })
             .setNegativeButton(android.R.string.no, null)
             .show();
@@ -501,9 +496,10 @@ public class MainActivity extends AppCompatActivity implements KeyProfileAdapter
     private void loadKeyProfiles() {
         updateLockIcon();
 
+        List<KeyProfile> profiles = new ArrayList<>();
         try {
             for (DatabaseEntry entry : _db.getKeys()) {
-                _keyProfiles.add(new KeyProfile(entry));
+                profiles.add(new KeyProfile(entry));
             }
         } catch (Exception e) {
             e.printStackTrace();
@@ -511,7 +507,7 @@ public class MainActivity extends AppCompatActivity implements KeyProfileAdapter
             return;
         }
 
-        _keyProfileAdapter.notifyDataSetChanged();
+        _keyProfileAdapter.addKeys(profiles);
     }
 
     private void updateLockIcon() {