Swift 在上方添加行以进行控制 [英] Swift add line above to control

问题描述

在下面的屏幕中，我想在 "Item" 标签上方和 "Add" 按钮之后添加水平线(在添加按钮下方，我有动态桌子).UIGraphicsGetCurrentContext() 在这里不起作用.

In the below screen, I want to add horizontal line above to "Item" label and after "Add" button (below to the add button, I have dynamic table). UIGraphicsGetCurrentContext() doesn't work here.

有人可以帮我怎么做吗?

Can someone help me how to do this?

推荐答案

添加子视图作为一行很简单.例如:

It is simple to add a subview to act as a line. For example:

斯威夫特 4

var lineView = UIView(frame: CGRect(x: 0, y: 100, width: 320, height: 1.0))
lineView.layer.borderWidth = 1.0
lineView.layer.borderColor = UIColor.black.cgColor
self.view.addSubview(lineView)

目标 C

UIView * lineview = [[UIView alloc] initWithFrame:CGRectMake(0, 100,320,1)];
lineview.layer.borderColor = [UIColor blackColor].CGColor;
lineview.layer.borderWidth = 1.0;
[self.view addSubview:lineview];

或者你可以参考这个链接添加CALayer或者绘制一个视图

Or you can refer to this link to add CALayer or draw a view

如何以编程方式绘制线条来自视图控制器?

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