fix bug

app/src/main/java/xyz/fycz/myreader/greendao/entity/Book.java

@@ -306,8 +306,11 @@ public class Book implements Serializable, RuleDataInterface {
         if (this == o) return true;
         if (o == null || getClass() != o.getClass()) return false;
         Book book = (Book) o;
+        boolean flag = chapterUrl == null ?
+                (infoUrl == null || infoUrl.equals(book.infoUrl)) :
+                chapterUrl.equals(book.chapterUrl);
         return name.equals(book.name) &&
-                chapterUrl.equals(book.chapterUrl) &&
+                flag && author != null &&
                 author.equals(book.author) &&
                 source.equals(book.source);
     }
@@ -396,6 +399,9 @@ public class Book implements Serializable, RuleDataInterface {
         if (variableMap == null && !TextUtils.isEmpty(variable)) {
             variableMap = GsonExtensionsKt.getGSON().fromJson(variable, MAP_STRING);
         }
+        if (variableMap == null) {
+            variableMap = new HashMap<>();
+        }
         return variableMap;
     }
 
@@ -487,4 +493,6 @@ public class Book implements Serializable, RuleDataInterface {
         }
         return bookTem;
     }
+
+    public void setReverseToc(boolean reverseToc){}
 }

app/src/main/java/xyz/fycz/myreader/greendao/entity/Chapter.java

@@ -159,6 +159,9 @@ public class Chapter implements RuleDataInterface {
         if (variableMap == null && !TextUtils.isEmpty(variable)) {
             variableMap = GsonExtensionsKt.getGSON().fromJson(variable, MAP_STRING);
         }
+        if (variableMap == null) {
+            variableMap = new HashMap<>();
+        }
         return variableMap;
     }
 

app/src/main/java/xyz/fycz/myreader/ui/adapter/holder/SourceExchangeHolder.java

@@ -42,7 +42,8 @@ public class SourceExchangeHolder extends ViewHolderImpl<Book> {
     public void onBind(RecyclerView.ViewHolder holder, Book data, int pos) {
         sourceTvTitle.setText(BookSourceManager.getSourceNameByStr(data.getSource()));
         sourceTvChapter.setText(data.getNewestChapterTitle());
-        if (data.getSource() != null && data.getSource().equals(dialog.getmShelfBook().getSource())) {
+        if ((data.getInfoUrl() != null && data.getInfoUrl().equals(dialog.getmShelfBook().getInfoUrl())||
+                data.getChapterUrl() != null && data.getChapterUrl().equals(dialog.getmShelfBook().getChapterUrl()))) {
             sourceIv.setVisibility(View.VISIBLE);
             dialog.setSourceIndex(pos);
         } else {

app/src/main/java/xyz/fycz/myreader/ui/dialog/SourceExchangeDialog.java

@@ -205,7 +205,8 @@ public class SourceExchangeDialog extends Dialog {
                 searchEngine.stopSearch();
                 return;
             }
-            if (mShelfBook.getSource().equals(newBook.getSource())) return;
+            if ((mShelfBook.getInfoUrl() != null && mShelfBook.getInfoUrl().equals(newBook.getInfoUrl())||
+                    mShelfBook.getChapterUrl() != null && mShelfBook.getChapterUrl().equals(newBook.getChapterUrl()))) return;
             mShelfBook = newBook;
             listener.onSourceChanged(newBook, pos);
             mAdapter.getItem(pos).setNewestChapterId("true");