已置顶相册长按菜单新增“置顶”功能，支持再次置顶到最前

PinnedAlbumDbHelper 新增 repinAlbumToFront()：将当前相册集
排序号置为1，其余置顶记录整体后移一位；并新增
normalizeSortOrders() 按现有顺序把所有排序号重排为连续的
1..n，修正数据库中可能出现的序号空洞或重复。
AlbumAdapter 中已置顶相册的弹出菜单扩展为「取消置顶」「置顶」
两项，点击「置顶」即重新置顶到最前并刷新列表。

mygallery/build.properties

@@ -1,8 +1,8 @@
 #Created by .winboll/winboll_app_build.gradle
-#Sun Aug 23 08:17:44 HKT 2026
+#Sun Aug 23 08:40:51 HKT 2026
 stageCount=20
 libraryProject=
 baseVersion=15.0
 publishVersion=15.0.19
-buildCount=0
+buildCount=1
 baseBetaVersion=15.0.20

mygallery/src/main/java/cc/winboll/studio/mygallery/AlbumAdapter.java

@@ -119,7 +119,12 @@ private void showContextMenu(View view, final Album album) {
         android.app.AlertDialog.Builder builder = new android.app.AlertDialog.Builder(view.getContext());
         builder.setTitle(album.getName());
         final boolean isPinned = pinnedDbHelper != null && pinnedDbHelper.isPinned(album.getPath());
-        String[] items = isPinned ? new String[]{"取消置顶"} : new String[]{"置顶"};
+        String[] items = null;
+        if (isPinned) {
+            items = new String[]{"取消置顶", "置顶"};
+        } else {
+            items = new String[]{"置顶"};
+        }
         builder.setItems(items, new android.content.DialogInterface.OnClickListener() {
             @Override
             public void onClick(android.content.DialogInterface dialog, int which) {
@@ -130,8 +135,10 @@ private void showContextMenu(View view, final Album album) {
                         } else {
                             pinnedDbHelper.pinAlbum(album.getPath());
                         }
-                        refreshPinned();
+                    } else if (which == 1 && isPinned) {
+                        pinnedDbHelper.repinAlbumToFront(album.getPath());
                     }
+                    refreshPinned();
                 }
             }
         });

mygallery/src/main/java/cc/winboll/studio/mygallery/PinnedAlbumDbHelper.java

@@ -123,6 +123,63 @@ public class PinnedAlbumDbHelper extends SQLiteOpenHelper {
         }
     }
     
+    public void repinAlbumToFront(String albumPath) {
+        SQLiteDatabase db = getWritableDatabase();
+        db.beginTransaction();
+        try {
+            // 获取要再次置顶的相册的排序号
+            Cursor cursor = db.query(TABLE_NAME, new String[]{COLUMN_SORT_ORDER}, 
+                COLUMN_PATH + " = ?", new String[]{albumPath}, null, null, null);
+            if (cursor.moveToFirst()) {
+                int sortNumber = cursor.getInt(0);
+                cursor.close();
+                
+                if (sortNumber > 1) {
+                    // 将排序号小于该记录的记录全部加1（整体后移）
+                    db.execSQL("UPDATE " + TABLE_NAME + " SET " + COLUMN_SORT_ORDER + " = " + COLUMN_SORT_ORDER + " + 1 WHERE " + COLUMN_SORT_ORDER + " < ?", new Object[]{sortNumber});
+                    
+                    // 该相册置顶到排序号1
+                    ContentValues values = new ContentValues();
+                    values.put(COLUMN_SORT_ORDER, 1);
+                    db.update(TABLE_NAME, values, COLUMN_PATH + " = ?", new String[]{albumPath});
+                    
+                    LogUtils.d(TAG, "repinAlbumToFront: " + albumPath + ", sort number was: " + sortNumber);
+                }
+                
+                // 按当前顺序将排序号重排为连续的1..n
+                normalizeSortOrders(db);
+                
+                // 查询所有置顶相册的排序号并输出调试信息
+                Cursor debugCursor = db.query(TABLE_NAME, new String[]{COLUMN_PATH, COLUMN_SORT_ORDER}, 
+                    null, null, null, null, COLUMN_SORT_ORDER + " ASC");
+                StringBuilder sb = new StringBuilder("All pinned albums after repin:\n");
+                while (debugCursor.moveToNext()) {
+                    sb.append("  [").append(debugCursor.getInt(1)).append("] ").append(debugCursor.getString(0)).append("\n");
+                }
+                debugCursor.close();
+                LogUtils.d(TAG, sb.toString());
+            } else {
+                cursor.close();
+            }
+            db.setTransactionSuccessful();
+        } finally {
+            db.endTransaction();
+        }
+    }
+    
+    // 按排序号升序将所有记录重排为连续的1..n，修正可能出现的序号空洞或重复
+    private void normalizeSortOrders(SQLiteDatabase db) {
+        Cursor cursor = db.query(TABLE_NAME, new String[]{COLUMN_PATH}, null, null, null, null, 
+            COLUMN_SORT_ORDER + " ASC");
+        int sortOrder = 1;
+        while (cursor.moveToNext()) {
+            String path = cursor.getString(0);
+            db.execSQL("UPDATE " + TABLE_NAME + " SET " + COLUMN_SORT_ORDER + " = ? WHERE " + COLUMN_PATH + " = ?", 
+                new Object[]{sortOrder++, path});
+        }
+        cursor.close();
+    }
+    
     public boolean isPinned(String albumPath) {
         SQLiteDatabase db = getReadableDatabase();
         Cursor cursor = db.query(TABLE_NAME, null, COLUMN_PATH + " = ?",