Flutter的枚举BoxFit中有文档,但还要一个个点开,copy一份直观dian:
- fill:Box被完全填充,会变形,默认
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- contain:保持Box的纵横比至至少有一边填充满父控件
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- cover:保持Box的纵横比进行缩放至Box完全填充满父控件,超出部分进行裁剪
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- fitWidth:缩放Box宽直至填充满父控件
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- fitHeight:缩放Box高直至填充满父控件
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- none:不进行任何缩放操作
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- scaleDown:Box大于父控件,则采用与contain一致的缩放模式,否则采用none缩放模式
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