iOS自定义身份证键盘

项目中有需要需要身份证的输入框, 用自带的输入切换很麻烦(如果最后一位带X), 所以自定义一个身份证输入键盘.

自定义键盘的关键: self.textField.inputView = [自定义的view], 

支持长按一直删除

demo地址: https://github.com/NieYinlong/NYL_IDCardKeyBoard/tree/master

开始自定义

 1. 创建一个集成自UIView的视图 (NYLIDKeyBoard)

  NYLIDKeyBoard.h

////  NYLIDKeyBoard.h//  lqz////  Created by 聂银龙 on 2017/9/7.//  Copyright © 2017年 lqz. All rights reserved.//  身份证键盘#import <UIKit/UIKit.h>@class NYLIDKeyBoard;@protocol NYKIDKeyBoardDelegate <NSObject>@optional/** 点击按钮代理回调 @param idKeyboard 本类 @param inputString 点击按钮拼接后的字符串 */- (void)idKeyboard:(NYLIDKeyBoard *)idKeyboard  inputSring:(NSMutableString *)inputString;@end@interface NYLIDKeyBoard : UIView@property(nonatomic, assign) id<NYKIDKeyBoardDelegate>delegate;// 输入的字符串@property(nonatomic, strong) NSMutableString *inputString;@end

  NYLIDKeyBoard.m

////  NYLIDKeyBoard.m//  lqz////  Created by 聂银龙 on 2017/9/7.//  Copyright © 2017年 lqz. All rights reserved.//#import "NYLIDKeyBoard.h"#define RGB(r,g,b)            [UIColor colorWithRed:r/255.0 green:g/255.0 blue:b/255.0 alpha:1.0]// 屏幕高度#define SCREEN_HEIGHT         [[UIScreen mainScreen] bounds].size.height// 屏幕宽度#define SCREEN_WIDTH          [[UIScreen mainScreen] bounds].size.width#define GETSIZE(num)   (SCREEN_WIDTH/375*num)@implementation NYLIDKeyBoard/*// Only override drawRect: if you perform custom drawing.// An empty implementation adversely affects performance during animation.- (void)drawRect:(CGRect)rect {    // Drawing code}*/- (instancetype)initWithFrame:(CGRect)frame{    self = [super initWithFrame:frame];    if (self) {        self.inputString = [NSMutableString string];        [self initViewFrame:frame];    }    return self;}- (void)initViewFrame:(CGRect)frame {    self.userInteractionEnabled = YES;    CGFloat width = frame.size.width;    CGFloat height = frame.size.height;//    //    UIView *topBgView = nil;//    topBgView = [[UIView alloc] initWithFrame:CGRectMake(-1, 0,  width +2, 40)];//    topBgView.backgroundColor = RGB(249, 249, 249);//[UIColor colorWithWhite:0.92 alpha:0.92];//    topBgView.userInteractionEnabled = YES;//    topBgView.layer.borderColor = RGB(214, 213, 214).CGColor;//    topBgView.layer.borderWidth = 0.6;//    topBgView.alpha = 0.99;//    [self addSubview:topBgView];//    //    UIButton *okBtn = [UIButton buttonWithType:(UIButtonTypeCustom)];//    okBtn.frame = CGRectMake(SCREEN_WIDTH-50-4, 0, 50, 40);//    [okBtn setTitle:@"完成" forState:(UIControlStateNormal)];//    [okBtn setTitleColor:BASE_BACKGROUNG_BLUE_COLOR forState:(UIControlStateNormal)];//    [okBtn setTitleColor:[UIColor blueColor] forState:(UIControlStateHighlighted)];//    [topBgView addSubview:okBtn];//    [okBtn addTarget:self action:@selector(okbtnClick) forControlEvents:(UIControlEventTouchUpInside)];        NSInteger totalColumns = 3;     // 总列数    CGFloat cellW = width/3; // 每个格子的宽度    CGFloat cellH = GETSIZE(54);             // 格子高度        NSArray *titles = @[@"1", @"2", @"3", @"4", @"5", @"6", @"7", @"8", @"9", @"X", @"0", @""];    for (int i = 0; i < titles.count ; i++) {                int row = i / totalColumns; // 行        int col = i % totalColumns; // 列        //根据行号和列号来确定 子控件的坐标        CGFloat cellX = col * cellW;        CGFloat cellY = row * cellH;                        UIButton *btn = [UIButton buttonWithType:(UIButtonTypeCustom)];                btn.frame = CGRectMake(cellX,   cellY, cellW, cellH);        [btn setTitle:titles[i] forState:(UIControlStateNormal)];        btn.titleLabel.font = [UIFont boldSystemFontOfSize:20];        [btn setTitleColor:[UIColor blackColor] forState:(UIControlStateNormal)];                [btn setBackgroundImage:[UIImage imageNamed:@"nyl_keyboard_white"] forState:(UIControlStateNormal)];        [btn setBackgroundImage:[UIImage imageNamed:@"nyl_keyboard"] forState:(UIControlStateHighlighted)];                [self addSubview:btn];        btn.tag = 100 + i;        //NSLog(@"%.2f === %.2f == %.2f", btn.left, cellX, btn.bottom);        [btn addTarget:self action:@selector(actionBtnClick:) forControlEvents:(UIControlEventTouchUpInside)];                if (btn.tag == 111) { // 删除按钮            //button长按事件             UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(btnLong:)];             //longPress.minimumPressDuration = ; //定义按的时间            [btn addGestureRecognizer:longPress];                                    // 删除按钮上面加图片            UIImageView *delImageV = [[UIImageView alloc] init];            delImageV.image = [UIImage imageNamed:@"nylKeyBoard_del"];                        CGFloat img_width = cellW / 4.6;            CGFloat img_height = img_width * 30 / 40; // 比例高度                        delImageV.frame = CGRectMake( (cellW - img_width) / 2, (cellH - img_height) / 2, img_width, img_height);            [btn addSubview:delImageV];                                }            }            //CGFloat topBottom = topBgView.bottom;        // 竖线    for (int i = 0; i < 2; i++) {                UIView *line = [[UIView alloc] initWithFrame:CGRectMake(cellW + i * (cellW), 0, 0.5, height)];        line.backgroundColor = RGB(214, 213, 214);        [self addSubview:line];    }        // 横线    for (int i = 0; i < 3; i++) {                UIView *line = [[UIView alloc] initWithFrame:CGRectMake(0, cellH+ i * cellH, width, 0.5)];        line.backgroundColor = RGB(214, 213, 214);        [self addSubview:line];    }    }- (void)okbtnClick {   [self removeFromSuperview];    if (_delegate && [_delegate respondsToSelector:@selector(idKeyboard:inputSring:)]) {        [_delegate idKeyboard:self inputSring:self.inputString];    }}- (void)actionBtnClick:(UIButton *)btn {    NSLog(@"自定义键盘按钮方法===== %@", btn.titleLabel.text);            if (btn.tag == 111 && self.inputString.length > 0) {        [self.inputString deleteCharactersInRange:NSMakeRange(self.inputString.length-1, 1)];    } else {                if (btn.tag != 111) {            [self.inputString appendString:btn.titleLabel.text];        }    }        if (_delegate && [_delegate respondsToSelector:@selector(idKeyboard:inputSring:)]) {        [_delegate idKeyboard:self inputSring:self.inputString];    }}#pragma mark -  长按钮删除-(void)btnLong:(UILongPressGestureRecognizer *)gestureRecognizer{        if (self.inputString.length > 0) {        [self.inputString deleteCharactersInRange:NSMakeRange(self.inputString.length-1, 1)];                NSLog(@"长按==== %@", self.inputString);                if (_delegate && [_delegate respondsToSelector:@selector(idKeyboard:inputSring:)]) {            [_delegate idKeyboard:self inputSring:self.inputString];        }    }    }@end

==========在controller中使用 =============

////  ViewController.m//  NYL_IDCardKeyBoard////  Created by 聂银龙 on 2017/9/8.//  Copyright © 2017年 聂银龙. All rights reserved.//#import "ViewController.h"#import "NYLIDKeyBoard.h"// 屏幕高度#define SCREEN_HEIGHT         [[UIScreen mainScreen] bounds].size.height// 屏幕宽度#define SCREEN_WIDTH          [[UIScreen mainScreen] bounds].size.width#define GETSIZE(num)   (SCREEN_WIDTH/375*num)@interface ViewController ()<NYKIDKeyBoardDelegate>@property (weak, nonatomic) IBOutlet UITextField *textField;@property(nonatomic, strong) NYLIDKeyBoard *idKeyBoard;@end@implementation ViewController- (void)viewDidLoad {    [super viewDidLoad];       // 设置自定义键盘    self.textField.inputView = self.idKeyBoard;        }#pragma mark -  输入代理回调- (void)idKeyboard:(NYLIDKeyBoard *)idKeyboard inputSring:(NSMutableString *)inputString {        _textField.text = inputString;    }- (void)touchesEnded:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {    [self.textField resignFirstResponder];}// 身份证键盘- (NYLIDKeyBoard *)idKeyBoard {    if (!_idKeyBoard) {        _idKeyBoard = [[NYLIDKeyBoard alloc] initWithFrame:CGRectMake(0, SCREEN_HEIGHT - GETSIZE(216), SCREEN_WIDTH, GETSIZE(216) )];        _idKeyBoard.delegate = self;            }    return _idKeyBoard;}- (void)didReceiveMemoryWarning {    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}@end