tableview 中的imageview 有時候可能需要裁剪 或得想要的尺寸?

cell.bigPic.contentMode = UIViewContentModeScaleAspectFill;

cell.bigPic.clipsToBounds = YES;

cell.bigPic.userInteractionEnabled = YES;

可選擇的枚舉值

typedef NS_ENUM(NSInteger, UIViewContentMode) {

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,

};