在Interface Builder中设置蒙版角 [英] Setting masked corners in Interface Builder

问题描述

[.layerMaxXMinYCorner, .layerMinXMinYCorner]是什么类型的值?是否可以在Interface Builder中的View上设置此参数?我知道如何在身份检查器中设置layer.borderWidth，layer.borderUIColor和layer.cornerRadius，但是我无法弄清楚用于遮罩角的正确类型和值.

What type of value is [.layerMaxXMinYCorner, .layerMinXMinYCorner]? Is it possible to set this parameter on a View in Interface Builder? I know how to set layer.borderWidth, layer.borderUIColor and layer.cornerRadius in the Identity Inspector, but I can't figure out the right Type and Value to use for masked corners.

谢谢！

杰克

更新:以下是每个组合的整数值(按四舍五入的方式):

Update: here are the integer values for each combination (in terms of which are rounded):

• 0:没有圆角
• 1:左上方
• 2:右上方
• 3 :左上方&右(两个顶角)
• 4:左下方
• 5:顶部&左下角(两个角)
• 6 :右上角&左下方
• 7 :左上方&右，左下(除右下外的所有角落)
• 8:右下角
• 9 :左上方，右下方
• 10:顶部&右下角(两个角)
• 11::两个右上角，右下角(左下角以外的所有角)
• 12 :左下角&右(两个底角)
• 13 :左下角&右，左上(除右上外的所有角落)
• 14 :左下角&右上，右上(除左上角外的所有角落)
• 15 :所有角都是圆角的

• 0: no rounded corners
• 1: top left
• 2: top right
• 3: top left & right (both top corners)
• 4: bottom left
• 5: top & bottom left (both left corners)
• 6: top right & bottom left
• 7: top left & right, bottom left (all corners except bottom right)
• 8: bottom right
• 9: top left, bottom right
• 10: top & bottom right (both right corners)
• 11: both top corners, bottom right (all corners except bottom left)
• 12: bottom left & right (both bottom corners)
• 13: bottom left & right, top left (all corners except top right)
• 14: bottom left & right, top right (all corners except top left)
• 15: all corners rounded

• 左上角位于1、3、5、7、9、11、13、15
• 右上角是2-3、6-7、10-11、14-15
• 左下角是4-7、12-15

• 右下角是8-15

• Top left is in 1, 3, 5, 7, 9, 11, 13, 15
• Top right is in 2-3, 6-7, 10-11, 14-15
• Bottom left is in 4-7, 12-15

• Bottom right is in 8-15

两个上角位于3、7、11、15

Both top corners are in 3, 7, 11, 15

推荐答案

maskedCorners是CACornerMask，它是一个OptionSet或位掩码.原始值是一个整数:在代码中，您可以尝试打印someView.layer.maskedCorners.rawValue的值，或通过someView.layer.maskedCorners.setValue(3, forKey: "maskedCorners")进行设置.

maskedCorners is a CACornerMask, which is an OptionSet, or bit mask. The raw value is an integer: in code, you can try printing the value of someView.layer.maskedCorners.rawValue, or setting it via someView.layer.maskedCorners.setValue(3, forKey: "maskedCorners").

因此，您应该能够在Interface Builder中将layer.maskedCorners的值设置为整数3(或任何您需要的值)，我不明白为什么这样做不安全.如果您忘记了，那么找出整数值实际映射到哪些角点将是一件很痛苦的事情.

So you should be able to set the value of layer.maskedCorners to the integer 3 (or whatever you need) in Interface Builder, and I don't see why it would be unsafe to do this. Though it will be a pain to figure out what set of corners that integer value actually maps to if you forget.

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