UIViewContentMode类型及效果

最新推荐文章于 2019-05-05 16:54:07 发布

原创最新推荐文章于 2019-05-05 16:54:07 发布 · 668 阅读

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#ios开发 #uiview #objective-c #uiimageview #enum

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本文详细介绍了UIViewContentMode的各种模式，包括但不限于填充、等比缩放、居中等，并解释了每种模式的具体行为，适用于iOS视图内容布局的学习。

UIViewContentMode

typedef enum {
    UIViewContentModeScaleToFill,
    UIViewContentModeScaleAspectFit,      // contents scaled to fit with fixed aspect. remainder is transparent
    UIViewContentModeScaleAspectFill,     // contents scaled to fill with fixed aspect. some portion of content may be clipped.
    UIViewContentModeRedraw,              // redraw on bounds change (calls -setNeedsDisplay)
    UIViewContentModeCenter,              // contents remain same size. positioned adjusted.
    UIViewContentModeTop,
    UIViewContentModeBottom,
    UIViewContentModeLeft,
    UIViewContentModeRight,
    UIViewContentModeTopLeft,
    UIViewContentModeTopRight,
    UIViewContentModeBottomLeft,
    UIViewContentModeBottomRight,
} UIViewContentMode;