程式碼裡面有些自定義的巨集,如果想要這個效果的朋友,不妨花幾分鐘把裡面的巨集改下等不報錯了,直接用這下面的程式碼呼叫就可以了!

呼叫程式碼

 SelectTimeV *selectTimeV = [[SelectTimeV alloc] init];

        selectTimeV.block = ^(NSString *timeStr) {

            if (timeStr) {

                [endTimeLabelV setRightLabelText:timeStr];
            }

        };
        [[UIApplication sharedApplication].keyWindow addSubview:selectTimeV];
 

.h檔案

#import <UIKit/UIKit.h>

@interface SelectTimeV : UIView

@property (nonatomic, copy) void (^block)(NSString *);

@end

.m檔案

#import "SelectTimeV.h"

@interface SelectTimeV ()<UITextFieldDelegate,UIPickerViewDataSource,UIPickerViewDelegate>

{
    NSInteger yearIndex;

    NSInteger
 
 monthIndex;

    NSInteger dayIndex;

    UIView *topV;
}
@property (nonatomic, strong) UIPickerView *pickerView;

@property (nonatomic, strong) NSMutableArray *yearArray;

@property (nonatomic, strong) NSMutableArray *monthArray;

@property (nonatomic, strong) NSMutableArray *dayArray;



@end


@implementation
 
 SelectTimeV

- (NSMutableArray *)yearArray {

    if (_yearArray == nil) {

        _yearArray = [NSMutableArray array];

        for (int year = 2000; year < 2050; year++) {

            NSString *str = [NSString stringWithFormat:@"%d年", year];

            [_yearArray addObject:str];
        }
    }

    return _yearArray;
}

- (NSMutableArray *)monthArray {

    if (_monthArray == nil) {

        _monthArray = [NSMutableArray array];

        for (int month = 1; month <= 12; month++) {

            NSString *str = [NSString stringWithFormat:@"%02d月", month];

            [_monthArray addObject:str];
        }
    }

    return _monthArray;
}

- (NSMutableArray *)dayArray {

    if (_dayArray == nil) {

        _dayArray = [NSMutableArray array];

        for (int day = 1; day <= 31; day++) {

            NSString *str = [NSString stringWithFormat:@"%02d日", day];

            [_dayArray addObject:str];
        }
    }

    return _dayArray;
}


- (instancetype)init
{
    self = [super initWithFrame:[UIApplication sharedApplication].keyWindow.frame];
    if (self) {

        self.backgroundColor = [UIColor colorWithWhite:0.0 alpha:0.3];


        topV = [[UIView alloc] initWithFrame:CGRectMake(0, screenHeight, screenWidth, aspectRatio(40))];
        topV.backgroundColor = RGBACOLOR(242, 242, 242, 1.0);
        [self addSubview:topV];

        UIButton *cancelBtn = [UIButton buttonWithType:UIButtonTypeCustom];
        cancelBtn.frame = CGRectMake(0, 0, aspectRatio(100), aspectRatio(40));
        [cancelBtn setTitle:@"取消" forState:UIControlStateNormal];
        [cancelBtn setTitleColor:blackFontColor forState:UIControlStateNormal];
        [cancelBtn.titleLabel setFont:regularFontWithSize(16)];
        [topV addSubview:cancelBtn];

        UIButton *yesBtn = [UIButton buttonWithType:UIButtonTypeCustom];
        yesBtn.frame = CGRectMake(screenWidth - aspectRatio(100), 0, aspectRatio(100), aspectRatio(40));
        [yesBtn setTitle:@"完成" forState:UIControlStateNormal];
        [yesBtn setTitleColor:naviBarColor forState:UIControlStateNormal];
        [yesBtn.titleLabel setFont:regularFontWithSize(16)];
        [topV addSubview:yesBtn];

        [cancelBtn click:^(UIView *view) {

            if (_block) {
                _block(nil);
            }

            [self remove];
        }];

        [yesBtn click:^(UIView *view) {

            if (_block) {

                NSString *timeStr = [NSString stringWithFormat:@"%@%@%@",((UILabel *)[_pickerView viewForRow:yearIndex forComponent:0]).text, ((UILabel *)[_pickerView viewForRow:monthIndex forComponent:1]).text, ((UILabel *)[_pickerView viewForRow:dayIndex forComponent:2]).text];


                timeStr = [timeStr stringByReplacingOccurrencesOfString:@"年" withString:@"/"];

                timeStr = [timeStr stringByReplacingOccurrencesOfString:@"月" withString:@"/"];

                timeStr = [timeStr stringByReplacingOccurrencesOfString:@"日" withString:@""];

                _block(timeStr);

            }
            [self remove];
        }];

        [self click:^(UIView *view) {

            if (_block) {
                _block(nil);
            }
            [self remove];
        }];


        _pickerView = [[UIPickerView alloc] initWithFrame:CGRectMake(0, topV.bottom, screenWidth, aspectRatio(207))];
        _pickerView.dataSource = self;
        _pickerView.delegate = self;
        _pickerView.backgroundColor = [UIColor whiteColor];
        [self addSubview:_pickerView];

        NSCalendar *calendar = [[NSCalendar alloc]
                                initWithCalendarIdentifier:NSCalendarIdentifierGregorian];
        // 定義一個時間欄位的旗標，指定將會獲取指定年、月、日、時、分、秒的資訊
        unsigned unitFlags = NSCalendarUnitYear |
        NSCalendarUnitMonth |  NSCalendarUnitDay |
        NSCalendarUnitHour |  NSCalendarUnitMinute |
        NSCalendarUnitSecond | NSCalendarUnitWeekday;
        // 獲取不同時間欄位的資訊
        NSDateComponents *comp = [calendar components: unitFlags fromDate:[NSDate date]];

        yearIndex = [self.yearArray indexOfObject:[NSString stringWithFormat:@"%ld年", comp.year]];
        monthIndex = [self.monthArray indexOfObject:[NSString stringWithFormat:@"%02ld月", comp.month]];
        dayIndex = [self.dayArray indexOfObject:[NSString stringWithFormat:@"%02ld日", comp.day]];

        [_pickerView selectRow:yearIndex inComponent:0 animated:YES];
        [_pickerView selectRow:monthIndex inComponent:1 animated:YES];
        [_pickerView selectRow:dayIndex inComponent:2 animated:YES];

        [self pickerView:_pickerView didSelectRow:yearIndex inComponent:0];
        [self pickerView:_pickerView didSelectRow:monthIndex inComponent:1];
        [self pickerView:_pickerView didSelectRow:dayIndex inComponent:2];

        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.25 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{

            UILabel *label = (UILabel *)[_pickerView viewForRow:yearIndex forComponent:0];
            label.textColor = RGBACOLOR(26, 174, 135, 1.0);
            label.font = regularFontWithSize(16);

            label = (UILabel *)[_pickerView viewForRow:monthIndex forComponent:1];
            label.textColor = RGBACOLOR(26, 174, 135, 1.0);
            label.font = regularFontWithSize(16);

            label = (UILabel *)[_pickerView viewForRow:dayIndex forComponent:2];
            label.textColor = RGBACOLOR(26, 174, 135, 1.0);
            label.font = regularFontWithSize(16);

        });

        [UIView animateWithDuration:0.25 animations:^{

            topV.frame = CGRectMake(0, screenHeight - aspectRatio(247), screenWidth, aspectRatio(40));
            _pickerView.frame = CGRectMake(0, topV.bottom, screenWidth, aspectRatio(207));
        }];

    }
    return self;
}

#pragma mark -UIPickerView
#pragma mark UIPickerView的資料來源
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
{
    return 3;
}

- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent:(NSInteger)component
{
    if (component == 0) {
        return self.yearArray.count;

    }else if(component == 1) {

        return self.monthArray.count;

    }else {

        switch (monthIndex + 1) {

            case 1:
            case 3:
            case 5:
            case 7:
            case 8:
            case 10:
            case 12: return 31;

            case 4:
            case 6:
            case 9:
            case 11: return 30;

            default: return 28;
        }
    }
}


- (void)remove {

    [UIView animateWithDuration:0.25 animations:^{

        topV.frame = CGRectMake(0, screenHeight, screenWidth, aspectRatio(40));
        _pickerView.frame = CGRectMake(0, topV.bottom, screenWidth, aspectRatio(207));

    } completion:^(BOOL finished) {

        [self removeFromSuperview];
    }];

}
#pragma mark -UIPickerView的代理

// 滾動UIPickerView就會呼叫
- (void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component
{
    if (component == 0) { 

        yearIndex = row;
        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.25 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{

            UILabel *label = (UILabel *)[pickerView viewForRow:row forComponent:component];
            label.textColor = RGBACOLOR(26, 174, 135, 1.0);
            label.font = regularFontWithSize(16);

        });

    }else if (component == 1) {

        monthIndex = row;

        [pickerView reloadComponent:2];


        if (monthIndex + 1 == 4 || monthIndex + 1 == 6 || monthIndex + 1 == 9 || monthIndex + 1 == 11) {

            if (dayIndex + 1 == 31) {

                dayIndex--;
            }
        }else if (monthIndex + 1 == 2) {

            if (dayIndex + 1 > 28) {
                dayIndex = 27;
            }
        }
        [pickerView selectRow:dayIndex inComponent:2 animated:YES];

        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.25 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{

            UILabel *label = (UILabel *)[pickerView viewForRow:row forComponent:component];
            label.textColor = RGBACOLOR(26, 174, 135, 1.0);
            label.font = regularFontWithSize(16);

            label = (UILabel *)[pickerView viewForRow:dayIndex forComponent:2];
            label.textColor = RGBACOLOR(26, 174, 135, 1.0);
            label.font = regularFontWithSize(16);

        });
    }else {

           dayIndex = row;
            dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.25 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{

            UILabel *label = (UILabel *)[pickerView viewForRow:row forComponent:component];
            label.textColor = RGBACOLOR(26, 174, 135, 1.0);
            label.font = regularFontWithSize(16);

        });
    }
}

- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view
{
    //    //設定分割線的顏色
    //    for(UIView *singleLine in pickerView.subviews)
    //    {
    //        if (singleLine.frame.size.height < 1)
    //        {
    //            singleLine.backgroundColor = kSingleLineColor;
    //        }
    //    }

    //設定文字的屬性
    UILabel *genderLabel = [[UILabel alloc] init];
    genderLabel.textAlignment = NSTextAlignmentCenter;
    genderLabel.textColor = RGBACOLOR(153, 153, 153, 1.0);
    genderLabel.font = regularFontWithSize(14);
    if (component == 0) {

        genderLabel.text = self.yearArray[row];

    }else if (component == 1) {

        genderLabel.text = self.monthArray[row];

    }else {

        genderLabel.text = self.dayArray[row];
    }

    return genderLabel;
}
@end