UITextField占位符颜色更改Monotouch

本文关键字：Monotouch 颜色 占位符 UITextField | 更新日期: 2023-09-27 18:03:07

我一直试图改变UItextfield占位符的颜色，我没有运气。我试过子类化，我试过修改属性字符串，但没有任何作用。

这是我尝试的子类。

public class CustomTextbox : UITextField
{
    private string placeholder{ get;  set; }
    public CustomTextbox ()
    {
    }
    public CustomTextbox(string theString)
    {
        this.placeholder = theString;
    }
    public override void DrawPlaceholder (RectangleF rect) {
        using (UIFont font = UIFont.SystemFontOfSize (16)) 
        using (UIColor col = new UIColor (UIColor.Blue.CGColor)) { 
            col.SetFill (); col.SetStroke (); col.SetColor (); base.DrawString (base.Placeholder,rect, font); } }
            
}

这是我尝试的带属性字符串方法:

var textat = new NSMutableAttributedString ("Email", new CTStringAttributes () {
            
            ForegroundColor = UIColor.White.CGColor,StrokeColor = UIColor.White.CGColor,
            StrokeWidth = 5.0f
        });
        this.emailtextbox.AttributedPlaceholder = textat;

UITextField占位符颜色更改Monotouch

简化你已有的。

var t = new UITextField()
{
  AttributedPlaceholder = new NSAttributedString("some placeholder text", null, UIColor.Red)
}

单触的方法是(答案在这里找到)

myLogin.AttributedPlaceholder = new NSAttributedString (
    "Enter your credentials",
    font: UIFont.FromName ("HoeflerText-Regular", 24.0f),
    foregroundColor: UIColor.Red,
    strokeWidth: 4 
);

试试这个:

[yourtextField setValue:[UIColor blueColor] forKeyPath:@"_placeholderLabel.textColor"];
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