SCTimePickerView.h

#import <UIKit/UIKit.h>

@interface SCTimePickerView : UIView
@property(nonatomic, strong)UIButton *confirmBtn;
@property(nonatomic, strong)UIButton *cancleBtn;
@property(nonatomic, strong)UILabel *titleLabel;
@property(nonatomic, strong)UIDatePicker *dataPicker;
@end

SCTimePickerView.m

#import "SCTimePickerView.h"

@implementation SCTimePickerView

- (instancetype)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
    if (self) {
        [self createViews:frame];
    }
    return self;
}

- (void)createViews:(CGRect)frame
{
    UIView *headView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, frame.size.width, 50)];
    headView.backgroundColor = [UIColor colorWithRed:0.95 green:0.95 blue:0.96 alpha:1];
    [self addSubview:headView];
    _cancleBtn = [UIButton buttonWithType:UIButtonTypeSystem];
    _cancleBtn.frame = CGRectMake(10, 0, 50, headView.frame.size.height);
    [_cancleBtn setTitle:@"取消" forState:UIControlStateNormal];
    [headView addSubview:_cancleBtn];
    
    _titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(_cancleBtn.frame.origin.x + _cancleBtn.frame.size.width, _cancleBtn.frame.origin.y, frame.size.width - _cancleBtn.frame.size.width * 2 - _cancleBtn.frame.origin.x * 2, _cancleBtn.frame.size.height)];
    _titleLabel.textColor = [UIColor colorWithRed:0.13 green:0.38 blue:0.6 alpha:1];
    _titleLabel.textAlignment = 1;
    [self addSubview:_titleLabel];
    
    _confirmBtn = [UIButton buttonWithType:UIButtonTypeSystem];
    _confirmBtn.frame = CGRectMake(_titleLabel.frame.origin.x + _titleLabel.frame.size.width, _titleLabel.frame.origin.y, _cancleBtn.frame.size.width, _cancleBtn.frame.size.height);
    [_confirmBtn setTitle:@"确定" forState:UIControlStateNormal];
    [self addSubview:_confirmBtn];
    
    _dataPicker = [[UIDatePicker alloc] initWithFrame:CGRectMake(0, _cancleBtn.frame.origin.y + _cancleBtn.frame.size.height, frame.size.width, frame.size.height - (_cancleBtn.frame.origin.y + _cancleBtn.frame.size.height))];
    _dataPicker.backgroundColor = [UIColor colorWithRed:1 green:1 blue:1 alpha:1];
   // _dataPicker.minuteInterval = 30;
    [_cancleBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
    [_confirmBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
    
    [self addSubview:_dataPicker];
}
@end

使用自定义控件

#import "SCTimePickerView.h"
@property(nonatomic, strong)SCTimePickerView *timePickerView;

 ///自定义时间控件
    _timePickerView = [[SCTimePickerView alloc] initWithFrame:CGRectMake(0, self.view.frame.size.height - 300 * FitWidth, self.view.frame.size.width, 300 * FitHeight)];
    [_timePickerView.dataPicker addTarget:self action:@selector(chooseDate:) forControlEvents:UIControlEventValueChanged];
    [self.view addSubview:_timePickerView];
    _timePickerView.hidden = YES;
    _timePickerView.dataPicker.datePickerMode = 1;
    // _timePickerView.dataPicker.minuteInterval = 30;
    
  //picker取消
    [_timePickerView.cancleBtn addTarget:self action:@selector(cancleAction) forControlEvents:UIControlEventTouchUpInside];
    //picker确定
    [_timePickerView.confirmBtn addTarget:self action:@selector(confirmAction) forControlEvents:UIControlEventTouchUpInside];

#pragma mark 选择时间的按钮
- (void)selectTimeAction:(UIButton *)sender{
    switch (sender.tag) {
        case 1003:
        {
            _timePickerView.hidden = NO;
            _flag = 1;
            NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
            [formatter setDateFormat:@"yyy-MM-dd"];
            NSDate *date = [NSDate date];
            NSString *dateTime = [formatter stringFromDate:date];
            _startTime = dateTime;
            NSIndexPath *indexPath = [NSIndexPath indexPathForRow:3 inSection:0];
            AddApplyLeaveTableViewCell *cell = [_tableView cellForRowAtIndexPath:indexPath];
            [cell.timeBtn setTitle:_startTime forState:UIControlStateNormal];

        }
            break;
        case 1004:
        {
            _timePickerView.hidden = NO;
            _flag = 2;
            NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
            [formatter setDateFormat:@"yyy-MM-dd"];
            NSDate *date = [NSDate date];
            NSString *dateTime = [formatter stringFromDate:date];
            _endTime = dateTime;
            NSIndexPath *indexPath = [NSIndexPath indexPathForRow:4 inSection:0];
            AddApplyLeaveTableViewCell *cell = [_tableView cellForRowAtIndexPath:indexPath];
            [cell.timeBtn setTitle:_endTime forState:UIControlStateNormal];

        }
            break;
        default:
            break;
    }
}
#pragma mark - pickerView 时间选择器的方法
- (void)chooseDate:(UIDatePicker *)sender
{
    NSDate *selectDate = sender.date;
    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
    formatter.dateFormat = @"yyyy-MM-dd";
    _dateString = [formatter stringFromDate:selectDate];
    switch (_flag) {
        case 1:
        {
            _startTime = _dateString;
            NSIndexPath *indexPath = [NSIndexPath indexPathForRow:3 inSection:0];
            AddApplyLeaveTableViewCell *cell = [_tableView cellForRowAtIndexPath:indexPath];
             [cell.timeBtn setTitle:_dateString forState:UIControlStateNormal];
        }
            break;
        case 2:
        {
            _endTime = _dateString;
            NSIndexPath *indexPath = [NSIndexPath indexPathForRow:4 inSection:0];
            AddApplyLeaveTableViewCell *cell = [_tableView cellForRowAtIndexPath:indexPath];
            [cell.timeBtn setTitle:_dateString forState:UIControlStateNormal];
        }
            break;
        default:
            break;
    }
    
}
#pragma mark - 时间选择器的点击取消的方法
- (void)cancleAction
{
    _timePickerView.hidden = YES;
}
- (void)saveAction
{
    _timePickerView.hidden = YES;
}

- (void)confirmAction{
    switch (_flag) {
        case 1:
        {
            _timePickerView.hidden = YES;
            NSIndexPath *indexPath = [NSIndexPath indexPathForRow:3 inSection:0];
            AddApplyLeaveTableViewCell *cell = [_tableView cellForRowAtIndexPath:indexPath];
            [cell.timeBtn setTitle:_dateString forState:UIControlStateNormal];
            
            if (_endTime) {
                NSTimeInterval interval = 0.0;
                NSDateFormatter * dateFormat = [[NSDateFormatter alloc] init];
                NSString *startTime = [NSString stringWithFormat:@"%@ 00:00:00", _startTime];
                [dateFormat setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
                NSDate *sdate = [dateFormat dateFromString:startTime];
                NSTimeInterval sinterval = [sdate timeIntervalSinceNow];
                NSString *endTime = [NSString stringWithFormat:@"%@ 00:00:00", _endTime];
                NSDate *edate = [dateFormat dateFromString:endTime];
                NSTimeInterval einterval = [edate timeIntervalSinceNow];
                interval = einterval - sinterval;
                _day = interval/60/60/24 + 2;
                NSLog(@"%ld", _day);
                if (_day > 0) {
                    _isNianJiaShow = 1;
                }else{
                    _isNianJiaShow = 0;
                }
                [_tableView reloadData];
            
            }
            
        }
            break;
        case 2:
        {
            _timePickerView.hidden = YES;
            NSIndexPath *indexPath = [NSIndexPath indexPathForRow:4 inSection:0];
            AddApplyLeaveTableViewCell *cell = [_tableView cellForRowAtIndexPath:indexPath];
            [cell.timeBtn setTitle:_dateString forState:UIControlStateNormal];
            if (_startTime) {
                
                NSTimeInterval interval = 0.0;
                NSDateFormatter * dateFormat = [[NSDateFormatter alloc] init];
                [dateFormat setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
                 NSString *startTime = [NSString stringWithFormat:@"%@ 00:00:00", _startTime];
                NSDate *sdate = [dateFormat dateFromString:startTime];
                NSTimeInterval sinterval = [sdate timeIntervalSinceNow];
               
                NSString *endTime = [NSString stringWithFormat:@"%@ 00:00:00", _endTime];
                NSDate *edate = [dateFormat dateFromString:endTime];
                NSTimeInterval einterval = [edate timeIntervalSinceNow];
                interval = einterval - sinterval;
                _day = interval/60/60/24 + 2;
                if (_day > 0) {
                    _isNianJiaShow = 1;
                }else{
                    _isNianJiaShow = 0;
                }
                [_tableView reloadData];
                    
            }

        }
            break;
        default:
            break;
    }
    
}