uitextfield 设置左图标以及图标文字间距，输入框背景图切换

来源：互联网发布：新浪php面试题及答案编辑：程序博客网时间：2024/05/17 17:46

参考网上资料，直接使用网上的代码，没有实现，重新修改
YLSTextField文件

#import <UIKit/UIKit.h>@interface YLSTextField : UITextField@end#import "YLSTextField.h"@implementation YLSTextField//改变文字位置-(CGRect) textRectForBounds:(CGRect)bounds{    CGRect iconRect=[super textRectForBounds:bounds];    iconRect.origin.x+=10;    return iconRect;}//改变编辑时文字位置-(CGRect) editingRectForBounds:(CGRect)bounds{    CGRect iconRect=[super editingRectForBounds:bounds];    iconRect.origin.x+=10;    return iconRect;}@end

页面中代码

self.loginuser.delegate=self;    self.loginpass.delegate=self;    //设置输入框左边图标    UIImageView *image1=[[UIImageView alloc]initWithImage:[UIImage imageNamed:@"user.png"]];    image1.frame=CGRectMake(0, 0, 27, 27);    self.loginuser.leftView=image1;    self.loginuser.leftViewMode=UITextFieldViewModeAlways;    UIImageView *image2=[[UIImageView alloc]initWithImage:[UIImage imageNamed:@"mima.png"]];    image2.frame=CGRectMake(0, 0, 27, 27);    self.loginpass.leftView=image2;    self.loginpass.leftViewMode=UITextFieldViewModeAlways;

输入框点击时背景图改变，不知道为啥在storyboard中设置的没有起作用。

//改变输入框背景图片-(void)textFieldDidBeginEditing:(YLSTextField *)textField{    if (textField.tag==3) {        [self.loginuser setBackground:[UIImage imageNamed:@"inputlan.png"]];    }else if(textField.tag==4){        [self.loginpass setBackground:[UIImage imageNamed:@"inputlan.png"]];    }}-(void)textFieldDidEndEditing:(YLSTextField *)textField{    if (textField.tag==3) {        [self.loginuser setBackground:[UIImage imageNamed:@"inputhui.png"]];    }else if(textField.tag==4){        [self.loginpass setBackground:[UIImage imageNamed:@"inputhui.png"]];    }}

0 1