Hopefully fix a bug where keys from a previously opened database would still be visible

.idea/misc.xml

@@ -24,7 +24,7 @@
       </value>
     </option>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" project-jdk-name="JDK" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">

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

@@ -48,7 +48,7 @@ public class MainActivity extends AppCompatActivity {
     private static final int CODE_IMPORT = 4;
 
     private KeyProfileAdapter _keyProfileAdapter;
-    private ArrayList<KeyProfile> _keyProfiles = new ArrayList<>();
+    private ArrayList<KeyProfile> _keyProfiles;
     private DatabaseManager _db;
 
     private boolean _nightMode = false;
@@ -112,6 +112,7 @@ public class MainActivity extends AppCompatActivity {
         LinearLayoutManager mLayoutManager = new LinearLayoutManager(this);
         rvKeyProfiles.setLayoutManager(mLayoutManager);
 
+        _keyProfiles = new ArrayList<>();
         _keyProfileAdapter = new KeyProfileAdapter(_keyProfiles);
         _keyProfileAdapter.setOnItemClickListener((position, v) -> createBottomSheet(position).show());