1. 优化内存使用
2. 修复跳页异常
3. 修复排行页提示信息错误的bug
4. 修复下拉刷新的bug
5. 修复tab bar相关bug
6. 修复左右阅读模式下，点击翻页无效的bug

1. Improve memory usage
2. Fix exception when jump page
3. Fix bug with incorrect hint in rank list page
4. Fix bug with pull-refresh
5. Fix bug with tab bar
6. Fix bug with jumping to next page in horizontal reading direction