我想为我的UITextFields使用一个自定义背景。这很好,除了我必须使用UITextBorderStyleNone来使它看起来很漂亮。这将迫使文本保持在左边,没有任何填充。
我可以手动设置填充,使它看起来类似于UITextBorderStyleRoundedRect除了使用我的自定义背景图像?
我想为我的UITextFields使用一个自定义背景。这很好,除了我必须使用UITextBorderStyleNone来使它看起来很漂亮。这将迫使文本保持在左边,没有任何填充。
我可以手动设置填充,使它看起来类似于UITextBorderStyleRoundedRect除了使用我的自定义背景图像?
当前回答
一个Swift 3版本的Xcode >6,在那里你可以在接口生成器/故事板编辑插入值。
import UIKit
@IBDesignable
class FormTextField: UITextField {
@IBInspectable var inset: CGFloat = 0
override func textRect(forBounds bounds: CGRect) -> CGRect {
return bounds.insetBy(dx: inset, dy: inset)
}
override func editingRect(forBounds bounds: CGRect) -> CGRect {
return textRect(forBounds: bounds)
}
}
其他回答
你可以使用分类。设置左填充和右填充
UITextField+Padding.h
@interface UITextField (Padding)
@property (nonatomic, assign) CGFloat paddingValue;
@property (nonatomic, assign) CGFloat leftPadding;
@property (nonatomic, assign) CGFloat rightPadding;
//overwrite
-(CGRect)textRectForBounds:(CGRect)bounds;
-(CGRect)editingRectForBounds:(CGRect)bounds;
@end
UITextField+Padding.m
#import "UITextField+Padding.h"
#import <objc/runtime.h>
static char TAG_LeftPaddingKey;
static char TAG_RightPaddingKey;
static char TAG_Left_RightPaddingKey;
@implementation UITextField (Padding)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wobjc-protocol-method-implementation"
-(CGRect)textRectForBounds:(CGRect)bounds {
CGFloat offset_Left=0;
CGFloat offset_Right=0;
if (self.paddingValue>0) {
offset_Left=self.paddingValue;
offset_Right=offset_Left;
}else{
if (self.leftPadding>0){
offset_Left=self.leftPadding;
}
if (self.rightPadding>0){
offset_Right=self.rightPadding;
}
}
if (offset_Left>0||offset_Right>0) {
return CGRectMake(bounds.origin.x+ offset_Left ,bounds.origin.y ,
bounds.size.width- (offset_Left+offset_Right), bounds.size.height-2 );
}else{
return bounds;
}
}
-(CGRect)editingRectForBounds:(CGRect)bounds {
return [self textRectForBounds:bounds];
}
#pragma clang diagnostic pop
#pragma maek -setter&&getter
- (CGFloat)paddingValue
{
return [objc_getAssociatedObject(self,&TAG_Left_RightPaddingKey) floatValue];
}
-(void)setPaddingValue:(CGFloat)paddingValue
{
objc_setAssociatedObject(self, &TAG_Left_RightPaddingKey, @(paddingValue), OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}
-(CGFloat)leftPadding
{
return [objc_getAssociatedObject(self,&TAG_LeftPaddingKey) floatValue];
}
-(void)setLeftPadding:(CGFloat)leftPadding
{
objc_setAssociatedObject(self, &TAG_LeftPaddingKey, @(leftPadding), OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}
-(CGFloat)rightPadding
{
return [objc_getAssociatedObject(self,&TAG_RightPaddingKey) floatValue];
}
-(void)setRightPadding:(CGFloat)rightPadding
{
objc_setAssociatedObject(self, &TAG_RightPaddingKey, @(rightPadding), OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}
@end
你可以像这样设置填充 self.phoneNumTF.paddingValue f = 10.; 或 self.phoneNumTF.leftPadding f = 10.;
到目前为止,我找到的最佳解决方案是分类。这就是我如何在左右两侧添加5点填充:
@implementation UITextField (Padding)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wobjc-protocol-method-implementation"
- (CGRect)textRectForBounds:(CGRect)bounds {
return CGRectMake(bounds.origin.x + 5, bounds.origin.y,
bounds.size.width - 10, bounds.size.height);
}
- (CGRect)editingRectForBounds:(CGRect)bounds {
return [self textRectForBounds:bounds];
}
#pragma clang diagnostic pop
@end
#pragma’s只是用来删除恼人的警告
为什么不是带属性字符串!?!,这是IOS 6.0的祝福功能之一:)
NSMutableParagraphStyle *mps = [[NSMutableParagraphStyle alloc] init];
mps.firstLineHeadIndent = 5.0f;
UIColor *placeColor = self.item.bgColor;
textFieldInstance.attributedPlaceholder = [[NSAttributedString alloc] initWithString:@"My Place Holder" attributes:@{NSForegroundColorAttributeName: placeColor, NSFontAttributeName : [UIFont systemFontOfSize:7.0f], NSParagraphStyleAttributeName : mps}];
下面是一个Swift代码,在UITextfield中提供填充
func txtPaddingVw(txt:UITextField) {
let paddingView = UIView(frame: CGRectMake(0, 0, 10, 10))
txt.leftViewMode = .Always
txt.leftView = paddingView
}
调用using
self.txtPaddingVw(txtPin)
textField.layer.borderWidth = 3;
将添加边框,这对我来说是填充。