[英]Stretched width for rotated UILabel
抱歉,我真的不知道原生 iOS 设计如何工作(我通常做 Xamarin Forms 设计)。 我有UIStackView
UIStackView stackView = new UIStackView(new CGRect(0, 0, View.Frame.Width, View.Frame.Height));
然后我创建UILabel
,设置AdjustsFontSizeToFitWidth = true
因为我需要自动调整字体大小
之后我对其应用一些旋转targetLabel.Transform = CGAffineTransform.MakeRotation(new nfloat(Math.PI * 270 / 180.0));
因为我需要制作垂直文本。
然后我将此 label 添加到堆栈中。 当然我也有一些其他的设置,但我认为它们无关紧要。
我的最后一步是为UILabel
设置具有固定宽度的新Frame
。 我尝试通过获取堆栈的高度来设置宽度,我什至尝试将其设置为常量,但它不起作用。 label 的宽度总是看起来像汽车。
这就是我要的:
但实际上,目标label很小。
完整代码在这里:(注意这是 TodayExtension)
[Register("CodeBasedViewController")]
public class CodeBasedViewController : SLComposeServiceViewController, INCWidgetProviding
{
UIImage image;
private UILabel otherLabel;
private UILabel targetLabel;
public CodeBasedViewController(IntPtr handle) : base(handle)
{
}
public override void ViewWillAppear(bool animated)
{
base.ViewWillAppear(animated);
UIStackView stackView = new UIStackView(new CGRect(0, 0, View.Frame.Width, View.Frame.Height));
View.AddSubview(stackView);
stackView.Axis = UILayoutConstraintAxis.Horizontal;
image = new UIImage("picture.png");
UIImageView imageView = new UIImageView(image)
{
ContentMode = UIViewContentMode.ScaleAspectFit
};
otherLabel = new UILabel
{
TextColor = UIColor.White,
Text = "someTextA",
Font = UIFont.SystemFontOfSize(40)
};
targetLabel = new UILabel
{
TextColor = UIColor.Black,
Text ="4",
TextAlignment = UITextAlignment.Left,
Font = UIFont.SystemFontOfSize(30),
AdjustsFontSizeToFitWidth = true,
Lines = 1
};
targetLabel.Transform = CGAffineTransform.MakeRotation(new nfloat(Math.PI * 270 / 180.0));
stackView.AddArrangedSubview(imageView);
stackView.AddArrangedSubview(otherLabel);
stackView.AddArrangedSubview(targetLabel);
stackView.Frame = new CGRect(View.Frame.Width / 2, 0,
otherLabel .IntrinsicContentSize.Width +
targetLabel.IntrinsicContentSize.Width +
View.Frame.Height
, View.Frame.Height);
stackView.Center = View.Center;
targetLabel.Frame = new CGRect(targetLabel.Frame.X, targetLabel.Frame.Y, 150, 150); //test constants
}
public void WidgetPerformUpdate(Action<NCUpdateResult> completionHandler)
{
completionHandler(NCUpdateResult.NewData);
}
}
首先,设置 StackView 的属性Distribution
stackView.Distribution = UIStackViewDistribution.Fill;
同时不要忘记设置label的字体
targetLabel.Frame = new CGRect(targetLabel.Frame.X, targetLabel.Frame.Y, 150, 150);
targetLabel.Font = UIFont.SystemFontOfSize(80);
以下是完整代码,我设置框架只是为了测试,你可以设置你想要的框架(如果你想设置等于屏幕的大小,你应该同时设置label和imageView的框架)。
UIStackView stackView = new UIStackView(new CGRect(100,200,300,150));
View.AddSubview(stackView);
stackView.Distribution = UIStackViewDistribution.Fill;
stackView.Spacing = 10;
stackView.BackgroundColor = UIColor.LightGray;
stackView.Axis = UILayoutConstraintAxis.Horizontal;
UIImageView imageView = new UIImageView()
{
ContentMode = UIViewContentMode.ScaleAspectFit,
BackgroundColor = UIColor.Red
};
otherLabel = new UILabel
{
TextColor = UIColor.Black,
Text = "someTextA",
Font = UIFont.SystemFontOfSize(40)
};
targetLabel = new UILabel
{
TextColor = UIColor.Black,
Text = "4",
TextAlignment = UITextAlignment.Left,
Font = UIFont.SystemFontOfSize(100),
AdjustsFontSizeToFitWidth = true,
Lines = 0
};
targetLabel.Transform = CGAffineTransform.MakeRotation(new nfloat(Math.PI * 270 / 180.0));
stackView.AddArrangedSubview(imageView);
stackView.AddArrangedSubview(otherLabel);
stackView.AddArrangedSubview(targetLabel);
stackView.Center = View.Center;
targetLabel.Frame = new CGRect(targetLabel.Frame.X, targetLabel.Frame.Y, 150, 150);
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