xib嵌套使用注意
http://www.tuicool.com/articles/ENv6Nf
// 被使用的xib需要重写此方法
- (instancetype)initWithCoder:(NSCoder *)coder
{
self = [super initWithCoder:coder];
if (self) {
// UIView *containerView = [[UINib nibWithNibName:@"SecondView" bundle:nil] instantiateWithOwner:self options:nil][0];
UIView *containerView = [[NSBundle mainBundle] loadNibNamed:@"SecondView" owner:self options:nil][0];
CGRect newFrame = CGRectMake(0, 0, self.frame.size.width, self.frame.size.height);
containerView.frame = newFrame;
[self addSubview:containerView];
}
return self;
}