iOS自定义UIDatePicker日期选择器视图 ，首先看一下效果图：

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下面贴上相关代码：

ViewController：

#import 
 
@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 ()
 
@property (nonatomic, weak) HWDatePicker *datePicker;
@property (nonatomic, strong) UITextField *dateTextField;
 
@end
 
@implementation ViewController
 
- (void)viewDidLoad {
 [super viewDidLoad];
 
 self.view.backgroundColor = [UIColor blackColor];
 
 //创建控件
 [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 = @"请设置日期";
 _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];
 
 //日期选择器
 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

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