問題描述

• 前提 : 自定義UICollectionViewFlowLayout:包含若干個UIScroll
• 理想現象 : 正常相應
• 報錯reason :

2016-04-12 19:17:59.919 weather[95267:1467874] the behavior of the UICollectionViewFlowLayout is not defined because:
2016-04-12 19:17:59.920 weather[95267:1467874] the item height must be less than the height of
 
 the UICollectionView minus the section insets top and bottom values, minus the content insets top and bottom values.

• 解決方式 : 新增以下設定

self.automaticallyAdjustsScrollViewInsets = NO;

分析:

1.automaticallyAdjustsScrollViewInsets根據按所在介面的status bar，navigationbar，與tabbar的高度，自動調整scrollview的 inset,
2.設定為no，不讓viewController調整，佈局自定義

修改方法:

- (void)viewDidLoad
{
    self.automaticallyAdjustsScrollViewInsets = NO;
    [self.collectionView registerClass:[UICollectionViewCell class] forCellWithReuseIdentifier:ID];
}

簡書地址:http://www.jianshu.com/users/227bbeb09f91/latest_articles

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