Ios 如何设置UITextField中添加的图标的位置？

电子邮件图标和占位符文本相互拥抱

我想在它们之间增加一些空间

下面是我用来创建这些字段的代码

// view for fields background
var view = UIView(frame: CGRectMake(35, 300, 300, 90));
view.backgroundColor = UIColor.whiteColor();
view.layer.cornerRadius = 5.0

// email text field
var email = UITextField(frame: CGRectMake(0, 0, 300, 50));
email.backgroundColor = UIColor.whiteColor();

var emailIcon = UIImageView();

var emailIconImage = UIImage(named: "email_icon.png");

emailIcon.image = emailIconImage;

email.leftView = emailIcon;

email.leftViewMode = UITextFieldViewMode.Always

email.layer.cornerRadius=5.0;

email.attributedPlaceholder = NSAttributedString(string:"E-mail",
    attributes:[NSForegroundColorAttributeName: UIColor.grayColor()])

emailIcon.frame = CGRect(x: 30, y: 15, width: 30, height: 20)

view.addSubview(emailIcon)

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谢谢

您可以从其图层更改位置：

 txtemail.layer.position = CGPointMake(30, 30)

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可以从其图层更改位置：

 txtemail.layer.position = CGPointMake(30, 30)

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子类UITextField并实现以下方法以将占位符文本放置在所需位置-

placeholderRectForBounds:

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子类UITextField并实现以下方法以将占位符文本放置在所需位置-

placeholderRectForBounds:

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在不进行子类化的情况下，最简单的方法是为EmailIcon宽度指定比EmailIconImageWidth多10pts的值。然后根据您的需要将EmailIcon的内容模式设置为中间或右边。以下是obj C中的代码，希望您能在swift中找到：

EmailIcon = [[UIImageView alloc] initWithImage: emailIconImage];
EmailIcon.frame = CGRectMake(0.0, 0.0, EmailIcon.image.size.width+10.0, EmailIcon.image.size.height);
EmailIcon.contentMode = UIViewContentModeCenter;  //Or UIViewContentModeRight

textField.leftView = EmailIcon;
textField.leftViewMode = UITextFieldViewModeAlways;

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在不进行子类化的情况下，最简单的方法是为EmailIcon宽度指定比EmailIconImageWidth多10pts的值。然后根据您的需要将EmailIcon的内容模式设置为中间或右边。以下是obj C中的代码，希望您能在swift中找到：

EmailIcon = [[UIImageView alloc] initWithImage: emailIconImage];
EmailIcon.frame = CGRectMake(0.0, 0.0, EmailIcon.image.size.width+10.0, EmailIcon.image.size.height);
EmailIcon.contentMode = UIViewContentModeCenter;  //Or UIViewContentModeRight

textField.leftView = EmailIcon;
textField.leftViewMode = UITextFieldViewModeAlways;

可能的重复可能的重复