fix: unclosed cursor error message

app/src/main/java/org/thoughtcrime/securesms/MediaPreviewActivity.java

@@ -18,9 +18,6 @@ package org.thoughtcrime.securesms;
 
 import android.annotation.SuppressLint;
 import android.annotation.TargetApi;
-
-import androidx.appcompat.app.ActionBar;
-import androidx.lifecycle.ViewModelProvider;
 import android.content.Context;
 import android.content.Intent;
 import android.database.Cursor;
@@ -30,16 +27,6 @@ import android.os.Build;
 import android.os.Build.VERSION;
 import android.os.Build.VERSION_CODES;
 import android.os.Bundle;
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-import androidx.loader.app.LoaderManager;
-import androidx.loader.content.Loader;
-import androidx.core.util.Pair;
-import androidx.viewpager.widget.PagerAdapter;
-import androidx.viewpager.widget.ViewPager;
-import androidx.appcompat.app.AlertDialog;
-import androidx.recyclerview.widget.LinearLayoutManager;
-import androidx.recyclerview.widget.RecyclerView;
 import android.view.GestureDetector;
 import android.view.LayoutInflater;
 import android.view.Menu;
@@ -53,16 +40,28 @@ import android.widget.FrameLayout;
 import android.widget.TextView;
 import android.widget.Toast;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.ActionBar;
+import androidx.appcompat.app.AlertDialog;
+import androidx.core.util.Pair;
+import androidx.lifecycle.ViewModelProvider;
+import androidx.loader.app.LoaderManager;
+import androidx.loader.content.Loader;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+import androidx.viewpager.widget.PagerAdapter;
+import androidx.viewpager.widget.ViewPager;
+
 import org.session.libsession.messaging.sending_receiving.attachments.DatabaseAttachment;
 import org.session.libsession.messaging.threads.Address;
 import org.session.libsession.messaging.threads.recipients.Recipient;
 import org.session.libsession.messaging.threads.recipients.RecipientModifiedListener;
 import org.session.libsession.utilities.Util;
-
+import org.session.libsignal.utilities.logging.Log;
 import org.thoughtcrime.securesms.components.MediaView;
 import org.thoughtcrime.securesms.database.MediaDatabase.MediaRecord;
 import org.thoughtcrime.securesms.database.loaders.PagingMediaLoader;
-import org.session.libsignal.utilities.logging.Log;
 import org.thoughtcrime.securesms.mediapreview.MediaPreviewViewModel;
 import org.thoughtcrime.securesms.mediapreview.MediaRailAdapter;
 import org.thoughtcrime.securesms.mms.GlideApp;
@@ -312,6 +311,11 @@ public class MediaPreviewActivity extends PassphraseRequiredActionBarActivity im
   private int cleanupMedia() {
     int restartItem = mediaPager.getCurrentItem();
 
+    PagerAdapter adapter = mediaPager.getAdapter();
+    if (adapter instanceof CursorPagerAdapter) {
+      ((CursorPagerAdapter)adapter).cursor.close();
+    }
+
     mediaPager.removeAllViews();
     mediaPager.setAdapter(null);
 

app/src/main/java/org/thoughtcrime/securesms/mediapreview/MediaPreviewViewModel.java

@@ -1,17 +1,18 @@
 package org.thoughtcrime.securesms.mediapreview;
 
-import androidx.lifecycle.LiveData;
-import androidx.lifecycle.MutableLiveData;
-import androidx.lifecycle.ViewModel;
 import android.content.Context;
 import android.database.Cursor;
 import android.net.Uri;
+
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.lifecycle.LiveData;
+import androidx.lifecycle.MutableLiveData;
+import androidx.lifecycle.ViewModel;
 
+import org.session.libsignal.libsignal.util.guava.Optional;
 import org.thoughtcrime.securesms.database.MediaDatabase.MediaRecord;
 import org.thoughtcrime.securesms.mediasend.Media;
-import org.session.libsignal.libsignal.util.guava.Optional;
 
 import java.util.Collections;
 import java.util.LinkedList;
@@ -27,7 +28,9 @@ public class MediaPreviewViewModel extends ViewModel {
 
   public void setCursor(@NonNull Context context, @Nullable Cursor cursor, boolean leftIsRecent) {
     boolean firstLoad = (this.cursor == null) && (cursor != null);
-
+    if (this.cursor != null) {
+      this.cursor.close();
+    }
     this.cursor       = cursor;
     this.leftIsRecent = leftIsRecent;