[英]Swift constraint autosize label width
This is my code to make UILabel autosize:这是我使 UILabel 自动调整大小的代码:
gmatesLabel.topAnchor.constraint(equalTo: homeButton.bottomAnchor, constant: 5).isActive = true
gmatesLabel.trailingAnchor.constraint(equalTo: gmatesUniversitySeparatorView.leadingAnchor, constant: -20).isActive = true
gmatesLabel.heightAnchor.constraint(equalToConstant: 40).isActive = true
// gmatesLabel.widthAnchor.constraint(equalTo: gmatesLabel.widthAnchor, multiplier: 0.5)
gmatesLabel.setContentCompressionResistancePriority(UILayoutPriorityRequired, for: .horizontal)
Also I've tried this code :我也试过这个代码:
gmatesLabel.widthAnchor.constraint(equalTo: gmatesLabel.widthAnchor, multiplier: 0.5, constant: 150).isActive = true
But the problem the labels always shrinked, what did I missed here ?但是标签总是缩小的问题,我在这里错过了什么?
Update I've added the leadingAnchor更新我添加了领先的锚
gmatesLabel.heightAnchor.constraint(equalToConstant: 40).isActive = true
And this the function to set my label :这是设置我的标签的功能:
fileprivate func setCommonGmatesText(_ count: Int ) {
let commonGmatesString = NSMutableAttributedString(string: "\(count)", attributes: [NSFontAttributeName : Font.boldFont22, NSForegroundColorAttributeName: Color.lightGray])
commonGmatesString.append(NSAttributedString(string: "\(NSLocalizedString("commonGmates", comment: "How much common gmates we got"))", attributes: [NSFontAttributeName : Font.regularFont14, NSForegroundColorAttributeName: Color.lightGray]))
gmatesLabel.attributedText = commonGmatesString
gmatesLabel.sizeToFit()
}
You should set a leadingAnchor to your label (greater or equal to 8pt for instance) so that the label doesn't grow bigger that it's superview.你应该为你的标签设置一个leadingAnchor(例如大于或等于8pt),这样标签就不会变大,成为超级视图。
You should also set the lineBreakMode:您还应该设置 lineBreakMode:
yourLabel.lineBreakMode = .byWordWrapping
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