目录表模型结构单曲获取歌手歌手获取单曲方法一方法二查询关联条件记录正向查询反向查询联表查询优化Select_relatedPrefetch_relatedRaw查询所有Raw条件查询Execute查询总结在日常的开发中，常编程客栈常需要对多张数
I am开发者_StackOverflow trying to make the Spinner behave different way when the user clicked on an item for a long time. I have spinner with some project and I want two things.
加载中,请稍侯......