iOS textField弹出自定义键盘（日期时间、省市、国家）

弹出选择国家效果图

弹出日期时间效果图

弹出省市效果图

1.选择国家（核心代码）
1.1自定义CountryTF继承自UITextField
CountryTF.h

////  CountryTF.h//  LayneCheungDemo////  Created by llkj on 2017/7/28.//  Copyright © 2017年 LayneCheung. All rights reserved.//#import <UIKit/UIKit.h>@interface CountryTF : UITextField- (void)initWithText;@end

CountryTF.m

////  CountryTF.m//  LayneCheungDemo////  Created by llkj on 2017/7/28.//  Copyright © 2017年 LayneCheung. All rights reserved.//#import "CountryTF.h"#import "CountryView.h"#import "CountryModel.h"@interface CountryTF ()<UIPickerViewDelegate, UIPickerViewDataSource>@property (nonatomic, strong) NSArray *dataArr;@property (nonatomic, weak) UIPickerView *pick;@end@implementation CountryTF- (void)awakeFromNib{    [super awakeFromNib];    [self setUp];}- (instancetype)initWithFrame:(CGRect)frame{    self = [super initWithFrame:frame];    if (self) {        [self setUp];    }    return self;}- (NSArray *)dataArr{    if (_dataArr == nil) {        NSString *path = [[NSBundle mainBundle] pathForResource:@"flags.plist" ofType:nil];        _dataArr = [NSArray arrayWithContentsOfFile:path];        NSMutableArray *arrM = [NSMutableArray array];        for (NSDictionary *dict in _dataArr) {            CountryModel *countryMode = [CountryModel countryWithDict:dict];            [arrM addObject:countryMode];        }        _dataArr = arrM;    }    return _dataArr;}// 创始化textField- (void)setUp{    UIPickerView *pickView = [[UIPickerView alloc] init];    pickView.delegate = self;    pickView.dataSource = self;    self.inputView = pickView;    self.pick = pickView;}- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView{    return 1;}- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component{    return self.dataArr.count;}- (CGFloat)pickerView:(UIPickerView *)pickerView rowHeightForComponent:(NSInteger)component{    return 75;}- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view{    CountryView *countryView = [CountryView countryView];    countryView.model = self.dataArr[row];    return countryView;}- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component{    CountryModel *model = self.dataArr[row];    self.text = model.name;}- (void)initWithText{    [self pickerView:self.pick didSelectRow:0 inComponent:0];}@end

1.2自定义CountryView继承UIView(用的XIB， 也可以代码创建)
CountryView.h

////  CountryView.h//  LayneCheungDemo////  Created by llkj on 2017/7/28.//  Copyright © 2017年 LayneCheung. All rights reserved.//#import <UIKit/UIKit.h>@class CountryModel;@interface CountryView : UIView@property (nonatomic, strong) CountryModel *model;+ (instancetype)countryView;@end

CountryView.m

////  CountryView.m//  LayneCheungDemo////  Created by llkj on 2017/7/28.//  Copyright © 2017年 LayneCheung. All rights reserved.//#import "CountryView.h"#import "CountryModel.h"@interface CountryView ()@property (weak, nonatomic) IBOutlet UILabel *nameLb;@property (weak, nonatomic) IBOutlet UIImageView *iconImgView;@end@implementation CountryView+ (instancetype)countryView{    return [[NSBundle mainBundle] loadNibNamed:NSStringFromClass([self class]) owner:nil options:nil].lastObject;}- (void)setModel:(CountryModel *)model{    _model = model;    self.nameLb.text = model.name;    self.iconImgView.image = [UIImage imageNamed:model.icon];}@end

1.3 数据模型文件

////  CountryModel.h//  LayneCheungDemo////  Created by llkj on 2017/7/28.//  Copyright © 2017年 LayneCheung. All rights reserved.//#import <Foundation/Foundation.h>@interface CountryModel : NSObject@property (nonatomic, copy) NSString *name;@property (nonatomic, copy) NSString *icon;+ (instancetype)countryWithDict:(NSDictionary *)dict;@end

////  CountryModel.m//  LayneCheungDemo////  Created by llkj on 2017/7/28.//  Copyright © 2017年 LayneCheung. All rights reserved.//#import "CountryModel.h"@implementation CountryModel+ (instancetype)countryWithDict:(NSDictionary *)dict{    return [[self alloc] initWithDict:dict];}- (instancetype)initWithDict:(NSDictionary *)dict{    if (self = [super init]) {        self.name = dict[@"name"];        self.icon = dict[@"icon"];    }    return self;}@end

1.选择日期（核心代码）
1.1自定义DateTF继承自UITextField
DateTF.h

////  DateTF.h//  LayneCheungDemo////  Created by llkj on 2017/7/31.//  Copyright © 2017年 LayneCheung. All rights reserved.//#import <UIKit/UIKit.h>@interface DateTF : UITextField- (void)initWithText;@end

DateTF.m

////  DateTF.m//  LayneCheungDemo////  Created by llkj on 2017/7/31.//  Copyright © 2017年 LayneCheung. All rights reserved.//#import "DateTF.h"@interface DateTF ()@property (nonatomic, weak) UIDatePicker *pick;@end@implementation DateTF- (void)awakeFromNib{    [super awakeFromNib];    [self setUp];}- (instancetype)initWithFrame:(CGRect)frame{    self = [super initWithFrame:frame];    if (self) {        [self setUp];    }    return self;}//初始化- (void)setUp{    UIDatePicker *datePick = [[UIDatePicker alloc] init];    //修改datePick日期模式    datePick.datePickerMode = UIDatePickerModeDate;    datePick.locale = [NSLocale localeWithLocaleIdentifier:@"zh"];    //监听日期改变    [datePick addTarget:self action:@selector(dateChange:) forControlEvents:UIControlEventValueChanged];    //日期键盘    self.inputView = datePick;    self.pick = datePick;}//当日期改变的时候会调用- (void)dateChange:(UIDatePicker *)datePick{    //把当前的日期给文本框赋值    //获取当前选中的日期    NSDateFormatter *fmt = [[NSDateFormatter alloc] init];    [fmt setDateFormat:@"yyy-MM-dd"];    //把当前日期转成字符串    self.text = [fmt stringFromDate:datePick.date];}- (void)initWithText{    [self dateChange:self.pick];}@end

1.选择省市（核心代码）
1.1自定义CityTF继承自UITextField
CityTF.h

////  CityTF.h//  LayneCheungDemo////  Created by llkj on 2017/7/31.//  Copyright © 2017年 LayneCheung. All rights reserved.//#import <UIKit/UIKit.h>@interface CityTF : UITextField- (void)initWithText;@end

CityTF.m

////  CityTF.m//  LayneCheungDemo////  Created by llkj on 2017/7/31.//  Copyright © 2017年 LayneCheung. All rights reserved.//#import "CityTF.h"#import "CityModel.h"@interface CityTF ()<UIPickerViewDelegate, UIPickerViewDataSource>@property (nonatomic, strong) NSArray *dataArr;/** 当前选中省份的角标 */@property (nonatomic, assign) NSInteger proIndex;@property (nonatomic, weak) UIPickerView *pick;@end@implementation CityTF- (void)awakeFromNib{    [super awakeFromNib];    //初始化    [self setUp];}- (instancetype)initWithFrame:(CGRect)frame{    self = [super initWithFrame:frame];    if (self) {        //初始化        [self setUp];    }    return self;}- (NSArray *)dataArr{    if (_dataArr ==nil) {        NSString *path = [[NSBundle mainBundle] pathForResource:@"provinces.plist" ofType:nil];        _dataArr = [NSArray arrayWithContentsOfFile:path];        NSMutableArray *arrM = [NSMutableArray array];        for (NSDictionary *dict in _dataArr) {            CityModel *model = [CityModel cityWithDict:dict];            [arrM addObject:model];        }        _dataArr = arrM;    }    return _dataArr;}- (void)setUp{    UIPickerView *pick = [[UIPickerView alloc] init];    pick.delegate = self;    pick.dataSource = self;    self.inputView = pick;    self.pick = pick;}//总共有多少列- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView{    return 2;}//每一列有多少行- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component{    if (component == 0) {        return self.dataArr.count;    } else {        //当前选中的省份决定,当前选中省份下有多少个城市        //当前选中的省份模型,返回当前选中的省份下的城市数量        CityModel *model = self.dataArr[self.proIndex];        return model.cities.count;    }}- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component{    if (component == 0) {        CityModel *model = self.dataArr[row];        return model.name;    } else {        CityModel *model = self.dataArr[self.proIndex];        return model.cities[row];    }}- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component{    if (component == 0) {        self.proIndex = row;        //第1列选中第0行        [pickerView selectRow:0 inComponent:1 animated:YES];        //刷新数据        [pickerView reloadAllComponents];    }    // 取出省份    CityModel *model = self.dataArr[self.proIndex];    NSString *provinceName = model.name;    // 取出省份对应的城市    // 获取第一列选中的行    NSInteger cityRow = [pickerView selectedRowInComponent:1];    NSString *cityName = model.cities[cityRow];    self.text = [NSString stringWithFormat:@"%@-%@", provinceName, cityName];}- (void)initWithText{    [self pickerView:self.pick didSelectRow:0 inComponent:0];}@end

1.2 数据模型文件

////  CityModel.h//  LayneCheungDemo////  Created by llkj on 2017/7/31.//  Copyright © 2017年 LayneCheung. All rights reserved.//#import <Foundation/Foundation.h>@interface CityModel : NSObject@property (nonatomic, strong) NSArray *cities;@property (nonatomic, copy) NSString *name;+(instancetype)cityWithDict:(NSDictionary *)dict;@end

////  CityModel.m//  LayneCheungDemo////  Created by llkj on 2017/7/31.//  Copyright © 2017年 LayneCheung. All rights reserved.//#import "CityModel.h"@implementation CityModel+ (instancetype)cityWithDict:(NSDictionary *)dict{    CityModel *model = [[CityModel alloc] init];    [model setValuesForKeysWithDictionary:dict];    return model;}@end

如何使用（Main.storyboard 拖几个控件，注意绑定对应的类）

////  ViewController.m//  LayneCheungDemo////  Created by llkj on 2017/7/28.//  Copyright © 2017年 LayneCheung. All rights reserved.//#import "ViewController.h"#import "CityTF.h"@interface ViewController ()<UITextFieldDelegate>@property (weak, nonatomic) IBOutlet UITextField *countryTF;@property (weak, nonatomic) IBOutlet UITextField *dateTF;@property (weak, nonatomic) IBOutlet UITextField *cityTF;@end@implementation ViewController- (void)viewDidLoad {    [super viewDidLoad];    self.countryTF.delegate = self;    self.dateTF.delegate = self;    self.cityTF.delegate = self;}- (void)textFieldDidBeginEditing:(CityTF *)textField{    //让当前编辑的文本选中第一个.    //在运行时,会去找它真实类型的方法.(在这里可修改textField的类型，也可以给textField写一个category扩充一个initWithText的方法声明)    [textField initWithText];}// 拦截用户输入- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string{    return NO;}- (void)didReceiveMemoryWarning {    [super didReceiveMemoryWarning];    // Dispose of any resources that can be recreated.}- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{    [self.view endEditing:YES];}@end

demo下载地址：http://download.csdn.net/detail/u010981736/9916416