iOS中怎么自定义一个日期选择器

今天就跟大家聊聊有关iOS中怎么自定义一个日期选择器，可能很多人都不太了解，为了让大家更加了解，小编给大家总结了以下内容，希望大家根据这篇文章可以有所收获。

一、封装日期选择器类YCDatePickerView

1、新建一个类，基于UIView，取名YCDatePickerView。

2、YCDatePickerView类中.h文件代码如下：

typedef void (^MyBasicBlock)(id result); #import <UIKit/UIKit.h> @interface YCDatePickerView : UIView @property (nonatomic, strong) UIButton *btnConfirm; @property (nonatomic, strong) UIButton *btnCancel; @property (nonatomic, strong) UIDatePicker *datePicker; @property (nonatomic, copy) MyBasicBlock selectBlock; + (YCDatePickerView *)datePickerViewWithMode:(UIDatePickerMode) datePickerMode bolck:(MyBasicBlock)block; @end

3、YCDatePickerView类中.m文件代码如下：

#define SCREEN_WIDTH   [[UIScreen mainScreen] bounds].size.width #define SCREEN_HEIGHT   [[UIScreen mainScreen] bounds].size.height #define kTopBarViewHeight    40 #define kButton_Width      40 #define kButton_Height     40 #define kDatePicker_Height   256 #import "YCDatePickerView.h" @implementation YCDatePickerView - (id)initWithFrame:(CGRect)frame {   self = [super initWithFrame:frame];   if (self) {     UIView *topBarView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, self.frame.size.width, kTopBarViewHeight)];     topBarView.backgroundColor = [UIColor orangeColor];     [self addSubview:topBarView];     _btnConfirm = [[UIButton alloc] initWithFrame:CGRectMake(self.frame.size.width-kButton_Width-10, 0, kButton_Width, kButton_Height)];     [_btnConfirm addTarget:self action:@selector(btnConfirm:) forControlEvents:UIControlEventTouchUpInside];     [_btnConfirm setTitle:@"确定" forState:UIControlStateNormal];     [topBarView addSubview:_btnConfirm];     _btnCancel = [[UIButton alloc] initWithFrame:CGRectMake(10, 0, kButton_Width, kButton_Height)];     [_btnCancel addTarget:self action:@selector(btnCancel:) forControlEvents:UIControlEventTouchUpInside];     [_btnCancel setTitle:@"取消" forState:UIControlStateNormal];     [topBarView addSubview:_btnCancel];     _datePicker = [[UIDatePicker alloc] initWithFrame:CGRectMake(0, CGRectGetMaxY(topBarView.frame), self.frame.size.width, self.frame.size.height-kTopBarViewHeight)];     _datePicker.backgroundColor = [UIColor whiteColor];     [self addSubview:_datePicker];   }   return self; } - (void)btnConfirm:(id)sender {   if (self.selectBlock) {     self.selectBlock(self.datePicker.date);   } } - (void)btnCancel:(id)sender {   if (self.selectBlock) {     self.selectBlock(nil);   } } + (YCDatePickerView *)datePickerViewWithMode:(UIDatePickerMode) datePickerMode bolck:(MyBasicBlock)block {   YCDatePickerView *picker = [[YCDatePickerView alloc] initWithFrame:CGRectMake(0, 0, SCREEN_WIDTH, kDatePicker_Height)];   picker.datePicker.datePickerMode = datePickerMode;   picker.selectBlock = block;   return picker; } @end

二、YCDatePickerView的使用

1、在ViewController中导入头文件

#import "YCDatePickerView.h"

2、在ViewController.m中添加如下代码

#define SCREEN_WIDTH   [[UIScreen mainScreen] bounds].size.width #define SCREEN_HEIGHT   [[UIScreen mainScreen] bounds].size.height #import "ViewController.h" #import "YCDatePickerView.h" @interface ViewController () @property (retain, nonatomic) YCDatePickerView *datePicker; @end @implementation ViewController - (void)viewDidLoad {   [super viewDidLoad];   UITextField *begin = [[UITextField alloc] initWithFrame:CGRectMake(10, 70, SCREEN_WIDTH-20, 30)];   begin.placeholder = @"请输入开始时间";   begin.borderStyle = UITextBorderStyleRoundedRect;   [self.view addSubview:begin];   __weak ViewController *weakself = self;   begin.inputView = [YCDatePickerView datePickerViewWithMode:UIDatePickerModeDate                              bolck:^(NSDate *result) {                                if (result) {                                  begin.text = [weakself dateToString:result];                                }                                [begin resignFirstResponder];                              }];   UITextField *end = [[UITextField alloc] initWithFrame:CGRectMake(10, 120, SCREEN_WIDTH-20, 30)];   end.placeholder = @"请输入结束时间";   end.borderStyle = UITextBorderStyleRoundedRect;   [self.view addSubview:end];   end.inputView = [YCDatePickerView datePickerViewWithMode:UIDatePickerModeDate                                    bolck:^(NSDate *result) {                                      if (result) {                                        end.text = [weakself dateToString:result];                                      }                                      [end resignFirstResponder];                                    }]; } //日期转为字符串 - (NSString *)dateToString:(NSDate *)date {   NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];   [dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];   NSString *strDate = [dateFormatter stringFromDate:date];   return strDate; } @end

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