AVplayer使用注意事项

关于AVplayer播放器内存释放问题 

[_player replaceCurrentItemWithPlayerItem:nil];

Label自适应的代码---

CGRect r = [self.detailModel.intro boundingRectWithSize:CGSizeMake(300,10000) options:(NSStringDrawingUsesLineFragmentOrigin) attributes:@{NSFontAttributeName:[UIFont systemFontOfSize:14.f]} context:nil];

self.detailLabel.frame = CGRectMake(30, 61, UISCREEN_WIDTH - 60, r.size.height + 50);

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找到本地文件路径的方法: