xib设置自定义颜色:颜色空间默认是Generic RGB
<color key="backgroundColor" red="0.8901960784313725" green="0.19215686274509802" blue="0.14117647058823529" alpha="1" colorSpace="calibratedRGB"/>
xib设置自定义颜色:颜色空间选择sRGB
<color key="backgroundColor" red="0.8901960784313725" green="0.19215686274509802" blue="0.14117647058823529" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
代码设置颜色:颜色空间默认是sRGB
view3.backgroundColor = UIColor(red: 227 / 255.0, green: 49 / 255.0, blue: 36 / 255.0, alpha: 1)
打印结果:
view 1: Optional(UIExtendedSRGBColorSpace 0.921313 0.283604 0.183076 1)
view 2: Optional(UIExtendedSRGBColorSpace 0.890196 0.192157 0.141176 1)
view 3: Optional(UIExtendedSRGBColorSpace 0.890196 0.192157 0.141176 1)
通过ColorSet设置的颜色,颜色空间默认是sRGB(代码和xib中使用同一套颜色)
<resources>
<namedColor name="primary">
<color red="0.8901960784313725" green="0.19215686274509805" blue="0.14117647058823529" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
</namedColor>
</resources>