优化本地书籍阅读

app/src/main/java/xyz/fycz/myreader/greendao/service/BookService.java

@@ -129,10 +129,18 @@ public class BookService extends BaseService {
      * @return
      */
     public Book findBookByAuthorAndName(String bookName, String author) {
-        return GreenDaoManager.getInstance().getSession().getBookDao()
-                .queryBuilder()
-                .where(BookDao.Properties.Name.eq(bookName), BookDao.Properties.Author.eq(author))
-                .unique();
+        try {
+            return GreenDaoManager.getInstance().getSession().getBookDao()
+                    .queryBuilder()
+                    .where(BookDao.Properties.Name.eq(bookName), BookDao.Properties.Author.eq(author))
+                    .unique();
+        } catch (Exception e) {
+            e.printStackTrace();
+            return GreenDaoManager.getInstance().getSession().getBookDao()
+                    .queryBuilder()
+                    .where(BookDao.Properties.Name.eq(bookName), BookDao.Properties.Author.eq(author))
+                    .list().get(0);
+        }
     }
 
     /**
@@ -142,10 +150,18 @@ public class BookService extends BaseService {
      * @return
      */
     public Book findBookByPath(String path) {
-        return GreenDaoManager.getInstance().getSession().getBookDao()
-                .queryBuilder()
-                .where(BookDao.Properties.ChapterUrl.eq(path))
-                .unique();
+        try {
+            return GreenDaoManager.getInstance().getSession().getBookDao()
+                    .queryBuilder()
+                    .where(BookDao.Properties.ChapterUrl.eq(path))
+                    .unique();
+        } catch (Exception e) {
+            e.printStackTrace();
+            return GreenDaoManager.getInstance().getSession().getBookDao()
+                    .queryBuilder()
+                    .where(BookDao.Properties.ChapterUrl.eq(path))
+                    .list().get(0);
+        }
     }
 
     /**
@@ -166,9 +182,11 @@ public class BookService extends BaseService {
      * @param book
      */
     public void deleteBook(Book book) {
-        deleteEntity(book);
-        mChapterService.deleteBookALLChapterById(book.getId());
-        mBookMarkService.deleteBookALLBookMarkById(book.getId());
+        try {
+            deleteEntity(book);
+            mChapterService.deleteBookALLChapterById(book.getId());
+            mBookMarkService.deleteBookALLBookMarkById(book.getId());
+        }catch (Exception ignored){}
     }
 
     /**

app/src/main/java/xyz/fycz/myreader/widget/page/LocalPageLoader.java

@@ -316,8 +316,22 @@ public class LocalPageLoader extends PageLoader {
                         seekPos += chapterContent.length();
 
                         if (mChapterList.size() == 0) { //如果当前没有章节，那么就是序章
-                            //加入简介
-                            mCollBook.setDesc(chapterContent);
+
+                            //创建序章
+                            Chapter preChapter = new Chapter();
+                            preChapter.setTitle("序章");
+                            preChapter.setStart(0);
+                            preChapter.setEnd(chapterContent.getBytes(mCharset).length); //获取String的byte值,作为最终值
+
+                            //如果序章大小大于30才添加进去
+                            if (preChapter.getEnd() - preChapter.getStart() > 30) {
+                                mChapterList.add(preChapter);
+                            }else {
+                                //加入简介
+                                mCollBook.setDesc(chapterContent);
+                            }
+
+
                             //创建当前章节
                             Chapter curChapter = new Chapter();
                             curChapter.setTitle(matcher.group());