我想插入一个UITextField的文本。
这可能吗?
我想插入一个UITextField的文本。
这可能吗?
当前回答
使用textRectForBounds:是正确的方法。我已经在我的子类中包装了这个,所以你可以简单地使用textEdgeInsets。看到SSTextField。
其他回答
快速解决没有子类&也检查
extension UITextField {
@IBInspectable var textInsets: CGPoint {
get {
return CGPoint.zero
}
set {
layer.sublayerTransform = CATransform3DMakeTranslation(newValue.x, newValue.y, 0);
}
}
}
你可以通过设置leftView来设置UITextField的文本插入。
是这样的:
UITextField *yourTextField = [[UITextField alloc] init];
UIView *leftView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 5, 5)];
leftView.backgroundColor = [UIColor clearColor];
yourTextField.leftViewMode = UITextFieldViewModeAlways;
yourTextField.leftView = leftView;
我通常尽量避免子类化,但如果你已经:
// add a property
@property (nonatomic) UIEdgeInsets edgeInsets;
// and override:
- (CGRect)textRectForBounds:(CGRect)bounds
{
return [super textRectForBounds:UIEdgeInsetsInsetRect(bounds, self.edgeInsets)];
}
- (CGRect)editingRectForBounds:(CGRect)bounds
{
return [super editingRectForBounds:UIEdgeInsetsInsetRect(bounds, self.edgeInsets)];
}
@IBInspectable, @IBDesignable swift类怎么样?
@IBDesignable
class TextField: UITextField {
@IBInspectable var insetX: CGFloat = 6 {
didSet {
layoutIfNeeded()
}
}
@IBInspectable var insetY: CGFloat = 6 {
didSet {
layoutIfNeeded()
}
}
// placeholder position
override func textRectForBounds(bounds: CGRect) -> CGRect {
return CGRectInset(bounds , insetX , insetY)
}
// text position
override func editingRectForBounds(bounds: CGRect) -> CGRect {
return CGRectInset(bounds , insetX , insetY)
}
}
你会在你的故事板中看到这个。
更新- Swift 3
@IBDesignable
class TextField: UITextField {
@IBInspectable var insetX: CGFloat = 0
@IBInspectable var insetY: CGFloat = 0
// placeholder position
override func textRect(forBounds bounds: CGRect) -> CGRect {
return bounds.insetBy(dx: insetX, dy: insetY)
}
// text position
override func editingRect(forBounds bounds: CGRect) -> CGRect {
return bounds.insetBy(dx: insetX, dy: insetY)
}
}
如果你只需要左边空白,你可以试试这个:
UItextField *textField = [[UITextField alloc] initWithFrame:...];
UIView *leftView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 10, textField.frame.size.height)];
leftView.backgroundColor = textField.backgroundColor;
textField.leftView = leftView;
textField.leftViewMode = UITextFieldViewModeAlways;
这对我很管用。我希望这能有所帮助。