69 lines
3.8 KiB
Markdown
69 lines
3.8 KiB
Markdown
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author = "FlintyLemming"
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title = "【已归档】UIKit 正确添加 Scrollview"
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slug = "0353b001d775429ea4ab23c511db6382"
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date = "2019-12-04"
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description = ""
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categories = ["Apple", "Coding"]
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tags = ["Word"]
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image = "https://hf-public-source.mitsea.com:8840/images/blog/posts/2019/12/UIKit%20%E6%AD%A3%E7%A1%AE%E6%B7%BB%E5%8A%A0%20Scrollview/sichen-xiang-0prBYAk2emU-unsplash.avif"
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1. 拖一个 Scrollview 到默认的 view 上，拖过来之后可以拉大一点，反正现在这个 Scrollview 的宽高是不确定的
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2. 设置上下左右约束为 0
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💡 这里的 Constrain to margins 不能勾选
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3. 拉一个 uiview 到 Scrollview 里
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4. 从 View 拉到 Scrollview 的 Content Layout Guide
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5. 把这四个全部点上
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6. 从 View 拖到 Frame Layout Guide
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7. 设置等宽
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8. 看下刚刚创建的五个约束，有些固定的值
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9. 依次点击，然后在右边把值都改成0。比如这里 159 要改成 0
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10. 对于有比例的这一项，改成1。比如这里的 0.57971 改成 1
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到此为止，左右都设定好了，还有上下的高度没有设定。上下的高度需要靠 view 里具体的元素到 view 的上下高度决定，然后进一步决定整个 Scrollview 的高度
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11. 随便拖一个元素到 view 里，比如一个 label
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12. 设置下到上下高度的约束，尤其是到下的，可以设置大一点
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13. 设置完后可以看到两条蓝色的 view 边线延伸下来，说明设置成功，此时页面也可以滚动
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> Photo by [Sichen Xiang](https://unsplash.com/@imseason?utm_content=creditCopyText&utm_medium=referral&utm_source=unsplash) on [Unsplash](https://unsplash.com/photos/a-large-room-with-lots-of-windows-in-it-0prBYAk2emU?utm_content=creditCopyText&utm_medium=referral&utm_source=unsplash)
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