更改按钮大小以适合文本大小

时间:2018-02-12 14:45:45

标签: ios swift uibutton

有一个添加到子视图的按钮。该按钮的文字大小可以变化。这是按钮代码:

let button: LinkButton = {
    let bt = LinkButton()
    bt.LinkString = link
    bt.titleLabel?.font = UIFont.systemFont(ofSize: 18, weight: UIFont.Weight.semibold)
    bt.setTitle("TEXT", for: UIControlState.normal)
    bt.titleLabel?.numberOfLines = 0
    bt.contentHorizontalAlignment = .left
    bt.setTitleColor(UIColor(red: 0.07, green: 0.32, blue: 0.89, alpha: 1.0), for: UIControlState.normal)
    bt.addTarget(self, action: #selector(linkOut), for: .touchUpInside)
    return bt
}()  

问题是,如果文本太大,按钮的大小不会调整为文本的大小,而是开始运行到其他子视图中: enter image description here

指定约束,并在必要时定位按钮。问题只在于尺寸。

按钮的约束:

contentView.addSubview(button)
button.anchor(bottomAnchor, left: self.leftAnchor, bottom: nil, right: self.rightAnchor, topConstant: 20, leftConstant: 15, bottomConstant: 0, rightConstant: 15, widthConstant: 0, heightConstant: 0)  

在bottomAnchor中,前一个元素的bottomAnchor存储在子视图输出循环

enter image description here

0 个答案:

没有答案