iOS自定義UIDatePicker日期選擇器視圖

這篇文章主要爲大家詳細介紹了iOS自定義UIDatePicker日期選擇器視圖，具有一定的參考價值，感興趣的小夥伴們可以參考一下

iOS自定義UIDatePicker日期選擇器視圖 ，首先看一下效果圖：

下面貼上相關代碼：

ViewController：

#import <UIKit/UIKit.h>
 
@interface ViewController : UIViewController
 
@end
 
 
#import "ViewController.h"
#import "HWDatePicker.h"
 
#define mainW [UIScreen mainScreen].bounds.size.width
#define mainH [UIScreen mainScreen].bounds.size.height
 
@interface ViewController ()<UITextFieldDelegate, HWDatePickerDelegate>
 
@property (nonatomic, weak) HWDatePicker *datePicker;
@property (nonatomic, strong) UITextField *dateTextField;
 
@end
 
@implementation ViewController
 
- (void)viewDidLoad {
  [super viewDidLoad];
  
  self.view.backgroundColor = [UIColor blackColor];
  
  //創建控件
  [self creatControl];
}
 
- (void)creatControl
{
  //textField
  _dateTextField = [[UITextField alloc] initWithFrame:CGRectMake(mainW * 0.05, mainW * 0.72, mainW * 0.9, mainW * 0.12)];
  _dateTextField.background = [UIImage imageNamed:@"textFieldBj"];
  _dateTextField.textAlignment = NSTextAlignmentRight;
  _dateTextField.placeholder = @"請設置日期";
  _dateTextField.delegate = self;
  UILabel *lab2 = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, mainW * 0.4, mainW * 0.12)];
  lab2.textAlignment = NSTextAlignmentLeft;
  lab2.text = @" 日期";
  lab2.textColor = [UIColor grayColor];
  _dateTextField.leftView = lab2;
  _dateTextField.leftViewMode = UITextFieldViewModeAlways;
  UILabel *lab22 = [[UILabel alloc] initWithFrame:CGRectMake(mainW * 0.12 - 15, 0, 15, mainW * 0.12)];
  _dateTextField.rightView = lab22;
  _dateTextField.rightViewMode = UITextFieldViewModeAlways;
  [self.view addSubview:_dateTextField];
  
  //日期選擇器
  HWDatePicker *datePicker = [[HWDatePicker alloc] initWithFrame:CGRectMake(mainW * 0.05, mainH, mainW * 0.9, mainW * 0.5)];
  datePicker.delegate = self;
  [self.view addSubview:datePicker];
  self.datePicker = datePicker;
}
 
#pragma mark - UITextFieldDelegate
- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField
{
  if (_datePicker.frame.origin.y != mainH && _datePicker != nil) {
    [_datePicker dismiss];
    return NO;
    
  }else if (textField == _dateTextField) {
    [_datePicker show];
    return NO;
  }
  
  return YES;
}
 
#pragma mark - HWDatePickerDelegate
- (void)datePickerView:(HWDatePicker *)datePickerView didClickSureBtnWithSelectDate:(NSString *)date
{
  _dateTextField.text = date;
}
 
@end

HWDatePicker：

#import <UIKit/UIKit.h>
 
@class HWDatePicker;
 
@protocol HWDatePickerDelegate <NSObject>
 
/**
 * HWDatePicker確定按鈕點擊代理事件
 *
 * @param datePickerView HWDatePicker
 * @param date      選中的日期
 */
- (void)datePickerView:(HWDatePicker *)datePickerView didClickSureBtnWithSelectDate:(NSString *)date;
 
@end
 
@interface HWDatePicker : UIView
 
@property (nonatomic, weak) id<HWDatePickerDelegate> delegate;
 
- (void)show;
- (void)dismiss;
 
@end
 
 
#import "HWDatePicker.h"
 
//獲得屏幕的寬高
#define mainW [UIScreen mainScreen].bounds.size.width
#define mainH [UIScreen mainScreen].bounds.size.height
 
@interface HWDatePicker ()
 
@property (nonatomic, strong) UIDatePicker *datePicker;
 
@end
 
@implementation HWDatePicker
 
- (id)initWithFrame:(CGRect)frame
{
  if (self = [super initWithFrame:frame]) {
    //背景框
    UIImageView *back = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, self.bounds.size.width, self.bounds.size.height)];
    back.image = [UIImage imageNamed:@"datePickerBj"];
    [self addSubview:back];
    
    //日期選擇器
    _datePicker = [[UIDatePicker alloc] init];
    _datePicker.frame = CGRectMake(10, 10, self.frame.size.width - 20, 120);
    _datePicker.backgroundColor = [UIColor clearColor];
    [_datePicker setDatePickerMode:UIDatePickerModeDate];
    NSLocale *locale = [[NSLocale alloc] initWithLocaleIdentifier:@"zh_CN"];
    _datePicker.locale = locale;
    NSDateFormatter *formatter_minDate = [[NSDateFormatter alloc] init];
    [formatter_minDate setDateFormat:@"yyyy-MM-dd"];
    NSDate *minDate = [formatter_minDate dateFromString:@"2008-01-01"];
    formatter_minDate = nil;
    [_datePicker setMinimumDate:minDate];
    [self addSubview:_datePicker];
    
    //確定按鈕
    UIButton *sureBtn = [[UIButton alloc] initWithFrame:CGRectMake((self.frame.size.width - mainW * 0.36) * 0.5, self.frame.size.height * 0.747, mainW * 0.36, mainW * 0.11)];
    [sureBtn setImage:[UIImage imageNamed:@"sureBtn"] forState:UIControlStateNormal];
    [sureBtn addTarget:self action:@selector(sureBtnOnClick) forControlEvents:UIControlEventTouchUpInside];
    [self addSubview:sureBtn];
  }
  
  return self;
}
 
- (void)sureBtnOnClick
{
  [self dismiss];
  
  if (_delegate && [_delegate respondsToSelector:@selector(datePickerView:didClickSureBtnWithSelectDate:)]) {
    [_delegate datePickerView:self didClickSureBtnWithSelectDate:[self getDateString]];
  }
}
 
- (NSString *)getDateString
{
  NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
  [dateFormatter setDateFormat:@"yyyy-MM-dd"];
  NSString *date = [dateFormatter stringFromDate:[self.datePicker date]];
  
  return date;
}
 
- (void)show
{
  [UIView animateWithDuration:0.3 animations:^{
    self.frame = CGRectMake(mainW * 0.05, mainH - mainW * 0.75, mainW * 0.9, mainW * 0.5);
  }];
}
 
- (void)dismiss
{
  [UIView animateWithDuration:0.3 animations:^{
    self.frame = CGRectMake(mainW * 0.05, mainH, mainW * 0.9, mainW * 0.5);
  }];
}
 
@end

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