iOS小技能：时间选择器（支持修改筛选的时间纬度精确到时分秒、设置默认选中的时间）

前言

• 支持修改筛选的时间纬度精确到时分秒
• 支持设置默认选中的时间

I 时间选择器

pod 'PGDatePicker' ,'2.6.9'

1.1 用法

1. 初始化datePick

- (PGDatePickManager *)datePickManager{
    if (nil == _datePickManager) {
        PGDatePickManager *datePickManager = [[PGDatePickManager alloc]init];

        _datePickManager = datePickManager;

        datePickManager.isShadeBackground = true;
        PGDatePicker *datePicker = datePickManager.datePicker;
        datePicker.delegate = self;
        datePicker.datePickerType = PGDatePickerTypeLine;
        datePicker.isHiddenMiddleText = false;
//        datePicker.datePickerMode = PGDatePickerModeDateHourMinute;


        datePicker.datePickerMode = PGDatePickerModeDate;


        datePickManager.cancelButtonText = QCTLocal(@"myclear_cache");
        datePickManager.datePicker.textColorOfSelectedRow = rgb(51,51,51);
        datePickManager.titleLabel.textColor = rgb(51,51,51);
        datePickManager.datePicker.lineBackgroundColor = k_tableView_Line;
        datePickManager.confirmButtonTextColor = BASE_RED_COLOR;


    }
    return

2. 点击日期控件弹出日期选择器

false

3. 监听时间的选择

PGDatePickerDelegate

- (void)datePicker:(PGDatePicker *)datePicker didSelectDate:(NSDateComponents *)dateComponents {
    NSString * string = nil;
    NSDate * date =[NSDate setYear:dateComponents.year month:dateComponents.month day:dateComponents.day hour:dateComponents.hour minute:dateComponents.minute];

    switch (datePicker.datePickerMode) {//PGDatePickerModeDate
        case PGDatePickerModeDate://PGDatePickerModeDate
            {
                //            NSString * string =[self dateFormattingWithDate:date toFormate:@"YYYY-MM-dd HH:mm"];
                string =[QCT_Common date4YYMMDD:date];


            }
            break;

        default:
        {
//            NSDate * date =[NSDate setYear:dateComponents.year month:dateComponents.month day:dateComponents.day hour:dateComponents.hour minute:dateComponents.minute];
            //            NSString * string =[self dateFormattingWithDate:date toFormate:@"YYYY-MM-dd HH:mm"];
             string =[QCT_Common date:date];


        }
            break;
    }


//    if( == ){
//
//
//    }else if (<#expression#>)




    NSLog(@"date = %@", string);

    switch (self.filterViewModel.timeModel.type) {
        case QCTsubFilterTimeViewModelType4Statr:
        {
            self.filterViewModel.timeModel.startStr = string;

            self.filterViewModel.timeModel.isclearstartStr = NO;
        }
            break;

        case QCTsubFilterTimeViewModelType4End:
        {


            //
            //            NSString * Title= [NSString stringWithFormat:@"%02ld-%02ld-%02ld",(long)dateComponents.year,(long)dateComponents.month,(long)dateComponents.day];


            self.filterViewModel.timeModel.isclearendStr = NO;

            self.filterViewModel.timeModel.endStr = string;

        }
            break;


        default:
            break;
    }

    [self.filterViewModel.reloadSubject sendNext:nil];


}

1.2 设置默认选中的时间

注意时间的格式是​​yyyy-MM-dd"​​​ 还是​​yyyy-MM-dd HH:mm"​​,如果格式错误，获取的date将是nil。

- (void)dateSelect:(UIButton *)btn
{
    // 传入时间，进行默认选中特定时间


        NSDateFormatter *dateFormatter = [[NSDateFormatter alloc]init];
        dateFormatter.locale = [[NSLocale alloc] initWithLocaleIdentifier:@"zh_CN"];

    [dateFormatter setDateFormat:@"yyyy-MM-dd"];// 注意

    NSDate *date ;

    if(btn.tag == 0){

        date = [dateFormatter dateFromString: staStr];


    }else {

        date = [dateFormatter dateFromString: endStr];
    }

        [datePicker setDate:date animated:false];

 }

封装格式转换

+ (NSDate*)dateWithFormatterString:(NSString*)dateWithString{


    NSDate *date = [self dateWithFormatterString:dateWithString dateFormat:@"yyyy-MM-dd HH:mm"];

    return date;

}

+ (NSDate*)dateWithFormatterStringyyyyMMDD:(NSString*)dateWithString{


    NSDate *date = [self dateWithFormatterString:dateWithString dateFormat:@"yyyy-MM-dd"];


    return date;

}
+ (NSDate*)dateWithFormatterStringyyyyMMDDhhmmss:(NSString*)dateWithString{



    NSDate *date = [self dateWithFormatterString:dateWithString dateFormat:@"yyyy-MM-dd HH:mm:ss"];


    return date;

}



+ (NSDate*)dateWithFormatterString:(NSString*)dateWithString dateFormat:(NSString*)dateFormat {

    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc]init];
    dateFormatter.locale = [[NSLocale alloc] initWithLocaleIdentifier:@"zh_CN"];
    dateFormatter.dateFormat = dateFormat;
    NSDate *date = [dateFormatter dateFromString:dateWithString];
    return

1.3 适配iOS12系统上日期视图被筛选视图遮挡问题

背景：为了适配iOS12系统上日期视图被筛选视图遮挡问题

方案：修改第三方日期视图的层级

修改PGDatePickManager，在viewWillLayoutSubviews将contentView和dismissView添加到keyWindow

由于是第三方SDK，可使用自定义类重写viewWillLayoutSubviews，但是推荐在分类使用方法交换进行实现

- (void)viewWillLayoutSubviews {
    [super viewWillLayoutSubviews];

    self.headerView.style = self.style;
    self.dismissView.frame = self.view.bounds;
    self.contentView.backgroundColor = self.datePicker.backgroundColor;
    if (self.style == PGDatePickManagerStyleSheet) {
        [self setupStyleSheet];
    }else if (self.style == PGDatePickManagerStyleAlertTopButton) {
        [self setupStyleAlert];
    }else {
        [self setupStyle3];
    }
//    [self.view bringSubviewToFront:self.contentView];
    [[UIApplication sharedApplication].keyWindow addSubview:_dismissView];
    [[UIApplication sharedApplication].keyWindow addSubview:self.contentView];

}