UIView UIViewContentMode各类型效果

ioschenlu

于 2015-11-03 10:29:25 发布

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本文详细介绍了UIViewContentMode的各种模式，包括但不限于UIViewContentModeScaleToFill、UIViewContentModeScaleAspectFit等，并解释了每种模式在视图变化时的行为特征。

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http://blog.youkuaiyun.com/iunion/article/details/7494511

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;