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iOS - 日期选择器
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ios 日期选择器

 8A5331CE04E6C548F945C8631DCC4EA2.png 一、申明相关属性

    @property (nonatomic , strong) MSUShadowView *shadowView;
    @property (nonatomic , strong) MSUDatePopView *popView;

二、相关view初始化

    - (MSUShadowView *)shadowView{
        if (!_shadowView) {
            self.shadowView = [[MSUShadowView alloc] initWithFrame:CGRectMake(0, 0, WIDTH, HEIGHT)];
            self.shadowView.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0.5];
            [self.view addSubview:self.shadowView];
        }
        return _shadowView;
    }

    - (MSUDatePopView *)popView{
        if (!_popView) {
            self.popView = [[MSUDatePopView alloc] initWithFrame:CGRectMake(0, HEIGHT-250, WIDTH, 250)];
            [self.shadowView addSubview:_popView];
            _popView.backgroundColor = HEXCOLOR(0xfbfbfb);
            _popView.delegate = self;
            _popView.hidden = YES;
        }
        return _popView;
    }

三、MSUShadowView相关代码

   1.MSUShadowView.h 中的代码

        #import <UIKit>

        @interface MSUShadowView : UIView

        @end

    2.MSUShadowView.m中的代码

        #import "MSUShadowView.h"

        @implementation MSUShadowView

        - (void)touchesBegan:(NSSet<UITouch> *)touches withEvent:(UIEvent *)event{
        //    self.hidden = YES;
            for (UIView *view in self.subviews) {
                CGPoint point = [[touches anyObject] locationInView:view];
                if (![view.layer containsPoint:point]) {
                    self.hidden = YES;
                    view.hidden = YES;

                    // 支付页面 防止点击view移除键盘
                    [self endEditing:YES];
                }
            }
        }
        @end

四、MSUDatePopView 代码

    1.MSUDatePopView.h中的代码

        #import <UIKit>

        @protocol MSUDatePopViewDelegate <NSObject>

        - (void)datePopViewCompleteBtnClickWithStartStr:(NSString *)startStr stopStr:(NSString *)stopStr;

        @end

        @interface MSUDatePopView : UIView

        @property (nonatomic , weak) id<MSUDatePopViewDelegate> delegate;

        @property (nonatomic , strong) UIButton *startBtn;

        @property (nonatomic , strong) UIButton *stopBtn;

        @end

    2.MSUDatePopView.m中的代码

        #import "MSUDatePopView.h"
        #import "MSUHUD.h"

        //masonry
        #define MAS_SHORTHAND
        #define MAS_SHORTHAND_GLOBALS
        #import "Masonry.h"

        #define HEXCOLOR(rgbValue)      [UIColor colorWithRed:((float)((rgbValue & 0xFF0000) >> 16))/255.0 green:((float)((rgbValue & 0xFF00) >> 8))/255.0 blue:((float)(rgbValue & 0xFF))/255.0 alpha:1.0]

        #define SelfWidth [UIScreen mainScreen].bounds.size.width

        @interface MSUDatePopView ()<UIPickerViewDelegate>

        @property (nonatomic , strong) UIPickerView *pickerView;

        @property (nonatomic , strong) NSMutableArray *yearArr;
        @property (nonatomic , strong) NSMutableArray *monthArr;
        @property (nonatomic , strong) NSMutableArray *dayArr;
        @property (nonatomic , assign) NSInteger dayNum;

        @property (nonatomic , assign) NSInteger selectedRowYear;
        @property (nonatomic , assign) NSInteger selectedRowMonth;
        @property (nonatomic , assign) NSInteger selectedRowDay;

        //这三个参数放在外面,可供外界调用
        @property (nonatomic,copy) NSString *year;
        @property (nonatomic,copy) NSString *month;
        @property (nonatomic,copy) NSString *day;
        @property (nonatomic , copy) NSString *startStr;
        @property (nonatomic , copy) NSString *stopStr;

        //应该跟新天数了,当月份或年份被选择过或是刚进入为true,需要刷新day
        @property (nonatomic,assign) Boolean dayShouldChangeEnable;

        @end

        @implementation MSUDatePopView

        - (instancetype)initWithFrame:(CGRect)frame
        {
            if (self = [super initWithFrame:frame]) {

                [self createView];

            }
            return self;
        }

        - (void)createView{
            UIView *topView = [[UIView alloc] init];
            topView.backgroundColor = HEXCOLOR(0xeff0f2);
            [self addSubview:topView];
            [topView makeConstraints:^(MASConstraintMaker *make) {
                make.top.equalTo(self.top).offset(0);
                make.left.equalTo(self.left).offset(0);
                make.width.equalTo(SelfWidth);
                make.height.equalTo(35);
            }];

            UILabel *seleLab = [[UILabel alloc] init];
            seleLab.text = @"选择日期";
            seleLab.textColor = [UIColor colorWithRed:244/255.0 green:148/255.0 blue:24/255.0 alpha:1];
            seleLab.font = [UIFont systemFontOfSize:14];
            [self addSubview:seleLab];
            [seleLab makeConstraints:^(MASConstraintMaker *make) {
                make.top.equalTo(self.top).offset(0);
                make.left.equalTo(self.left).offset(14);
                make.width.equalTo(100);
                make.height.equalTo(35);
            }];

            UIButton *completeBtn = [UIButton buttonWithType:UIButtonTypeCustom];
            [completeBtn setTitle:@"完成" forState:UIControlStateNormal];
            [completeBtn setTitleColor:[UIColor colorWithRed:244/255.0 green:148/255.0 blue:24/255.0 alpha:1] forState:UIControlStateNormal];
            completeBtn.titleLabel.font = [UIFont systemFontOfSize:14];
            completeBtn.adjustsImageWhenHighlighted = NO;
            [self addSubview:completeBtn];
            [completeBtn makeConstraints:^(MASConstraintMaker *make) {
                make.top.equalTo(self.top).offset(0);
                make.right.equalTo(self.right).offset(-14);
                make.width.equalTo(30);
                make.height.equalTo(35);
            }];
            [completeBtn addTarget:self action:@selector(completeBtnClick:) forControlEvents:UIControlEventTouchUpInside];

            UIView *line1View = [[UIView alloc] init];
            line1View.backgroundColor = HEXCOLOR(0xc3c3c3);
            [self addSubview:line1View];
            [line1View makeConstraints:^(MASConstraintMaker *make) {
                make.top.equalTo(self.top).offset(0);
                make.left.equalTo(self.left).offset(0);
                make.width.equalTo(SelfWidth);
                make.height.equalTo(1);
            }];

            UIView *lineView = [[UIView alloc] init];
            lineView.backgroundColor = HEXCOLOR(0xc3c3c3);
            [self addSubview:lineView];
            [lineView makeConstraints:^(MASConstraintMaker *make) {
                make.top.equalTo(seleLab.bottom).offset(-1);
                make.left.equalTo(self.left).offset(0);
                make.width.equalTo(SelfWidth);
                make.height.equalTo(1);
            }];

            UILabel *midLab = [[UILabel alloc] init];
            midLab.textAlignment = NSTextAlignmentCenter;
            midLab.text = @"至";
            midLab.textColor = HEXCOLOR(0x333333);
            midLab.font = [UIFont systemFontOfSize:14];
            [self addSubview:midLab];
            [midLab makeConstraints:^(MASConstraintMaker *make) {
                make.top.equalTo(lineView.bottom).offset(16.5);
                make.left.equalTo(self.left).offset(SelfWidth*0.5-10);
                make.width.equalTo(20);
                make.height.equalTo(20);
            }];

            self.pickerView = [[UIPickerView alloc] init];
            self.pickerView.dataSource = self;
            self.pickerView.delegate = self;
            [self addSubview:_pickerView];
            [_pickerView makeConstraints:^(MASConstraintMaker *make) {
                make.top.equalTo(self.top).offset(76.5);
                make.centerX.equalTo(self.centerX).offset(0);
                make.width.equalTo(SelfWidth-28);
                make.height.equalTo(self.frame.size.height-79);
            }];

            [self getDateOfThisMonment];

            self.startBtn = [UIButton buttonWithType:UIButtonTypeCustom];
            [_startBtn setTitle:[NSString stringWithFormat:@"%@年%@月%@日",self.yearArr[self.selectedRowYear],self.monthArr[self.selectedRowMonth],self.dayArr[self.selectedRowDay]] forState:UIControlStateNormal];
            self.startStr = [NSString stringWithFormat:@"%@%@%@",self.yearArr[self.selectedRowYear],self.monthArr[self.selectedRowMonth],self.dayArr[self.selectedRowDay]];
            _startBtn.selected = YES;
            [_startBtn setTitleColor:HEXCOLOR(0x333333) forState:UIControlStateNormal];
            [_startBtn setTitleColor:HEXCOLOR(0xf49418) forState:UIControlStateSelected];
            _startBtn.titleLabel.font = [UIFont systemFontOfSize:14];
            _startBtn.backgroundColor = HEXCOLOR(0xffffff);
            _startBtn.adjustsImageWhenHighlighted = NO;
            _startBtn.layer.cornerRadius = 5;
            _startBtn.clipsToBounds = YES;
            _startBtn.layer.shouldRasterize = YES;
            _startBtn.layer.rasterizationScale = [UIScreen mainScreen].scale;
            [self addSubview:_startBtn];
            [_startBtn makeConstraints:^(MASConstraintMaker *make) {
                make.centerY.equalTo(midLab.centerY).offset(0);
                make.right.equalTo(midLab.left).offset(-40);
                make.width.equalTo(122);
                make.height.equalTo(25);
            }];
            [_startBtn addTarget:self action:@selector(startBtnClick:) forControlEvents:UIControlEventTouchUpInside];

            self.stopBtn = [UIButton buttonWithType:UIButtonTypeCustom];
            [_stopBtn setTitle:@"截止日期" forState:UIControlStateNormal];
            [_stopBtn setTitleColor:HEXCOLOR(0x333333) forState:UIControlStateNormal];
            [_stopBtn setTitleColor:HEXCOLOR(0xf49418) forState:UIControlStateSelected];
            _stopBtn.titleLabel.font = [UIFont systemFontOfSize:14];
            _stopBtn.backgroundColor = HEXCOLOR(0xffffff);
            _stopBtn.adjustsImageWhenHighlighted = NO;
            _stopBtn.layer.cornerRadius = 5;
            _stopBtn.clipsToBounds = YES;
            _stopBtn.layer.shouldRasterize = YES;
            _stopBtn.layer.rasterizationScale = [UIScreen mainScreen].scale;
            [self addSubview:_stopBtn];
            [_stopBtn makeConstraints:^(MASConstraintMaker *make) {
                make.centerY.equalTo(midLab.centerY).offset(0);
                make.left.equalTo(midLab.right).offset(40);
                make.width.equalTo(122);
                make.height.equalTo(25);
            }];
            [_stopBtn addTarget:self action:@selector(stopBtnClick:) forControlEvents:UIControlEventTouchUpInside];
        }

        #pragma mark - 点击
        - (void)startBtnClick:(UIButton *)sender{
            self.stopBtn.selected = NO;
            self.startBtn.selected = YES;
        }

        - (void)stopBtnClick:(UIButton *)sender{
            self.startBtn.selected = NO;
            self.stopBtn.selected = YES;
            [_stopBtn setTitle:[NSString stringWithFormat:@"%@年%@月%@日",self.yearArr[self.selectedRowYear],self.monthArr[self.selectedRowMonth],self.dayArr[self.selectedRowDay]] forState:UIControlStateNormal];
            self.stopStr = [NSString stringWithFormat:@"%@%@%@",self.yearArr[self.selectedRowYear],self.monthArr[self.selectedRowMonth],self.dayArr[self.selectedRowDay]];
        }

        - (void)completeBtnClick:(UIButton *)sender{
            if (self.stopBtn.titleLabel.text.length > 0 && ([self.startStr integerValue] <= [self.stopStr integerValue])) {
                if (self.delegate && [self.delegate respondsToSelector:@selector(datePopViewCompleteBtnClickWithStartStr:stopStr:)]) {
                    [self.delegate datePopViewCompleteBtnClickWithStartStr:self.startStr stopStr:self.stopStr];
                }

            } else if (self.stopStr.length == 0){
                [MSUHUD showFileWithString:@"请选择截止时间"];
            } else if ([self.startStr integerValue] > [self.stopStr integerValue]){
                [MSUHUD showFileWithString:@"开始时间大于截止时间"];
            }
        }

        #pragma mark - 初始化
        - (NSMutableArray *)yearArr{
            if (!_yearArr) {
                self.yearArr = [NSMutableArray array];
                for (NSInteger i = 2014; i < 2050 xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed xss=removed>>>2");
                self.selectedRowDay = (int)row;
                [pickerView reloadComponent:2];
                NSLog(@"---%@",self.day);
                if (self.startBtn.selected == YES) {
                    [_startBtn setTitle:[NSString stringWithFormat:@"%@年%@月%@日",self.yearArr[self.selectedRowYear],self.monthArr[self.selectedRowMonth],self.day] forState:UIControlStateNormal];
                    self.startStr = [NSString stringWithFormat:@"%@%@%@",self.yearArr[self.selectedRowYear],self.monthArr[self.selectedRowMonth],self.day];
                } else if (self.stopBtn.selected == YES){
                    [_stopBtn setTitle:[NSString stringWithFormat:@"%@年%@月%@日",self.yearArr[self.selectedRowYear],self.monthArr[self.selectedRowMonth],self.day] forState:UIControlStateNormal];
                    self.stopStr = [NSString stringWithFormat:@"%@%@%@",self.yearArr[self.selectedRowYear],self.monthArr[self.selectedRowMonth],self.day];
                }

            }

            if(_dayShouldChangeEnable) //若,天数需要更新,那么执行
            {
                //调用计算天数的函数
                [self calculateDayWithMonth:[self.month intValue] andYear:[self.year intValue]];
                //由于更新的时候self.selectRowDay很可能大于 天数的最大值,比如self.selectRowDay为31,而天数最大值切换至了29,所以若超出,则需要将selectRowDay重新赋值
                if(self.selectedRowDay > _dayNum-1){
                    self.selectedRowDay = _dayNum-1;
                    NSLog(@"----------&gt;>>>>%zi<<<<<<",self.selectedRowDay);
                }
                //重新对天数的那一列进行更新
                [pickerView reloadComponent:2];
                //false
                _dayShouldChangeEnable = false;
            }

        }

        -(UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view{
            UILabel* Label = (UILabel*)view;
            if (!Label){
                Label = [[UILabel alloc] init];
                Label.minimumScaleFactor = 8;
                Label.adjustsFontSizeToFitWidth = YES;
                [Label setTextAlignment:NSTextAlignmentCenter];
                [Label setFont:[UIFont systemFontOfSize:15]];

                //当年份列,被选中的行对应变成黄色
                if (component==0&&_selectedRowYear==row) {
                    Label.textColor = [UIColor colorWithRed:244/255.0 green:148/255.0 blue:24/255.0 alpha:1];
                }else if (component==1&&_selectedRowMonth==row){
                    Label.textColor = [UIColor colorWithRed:244/255.0 green:148/255.0 blue:24/255.0 alpha:1];
                }else if(component==2&&_selectedRowDay==row){
                    Label.textColor = [UIColor colorWithRed:244/255.0 green:148/255.0 blue:24/255.0 alpha:1];
                }
            }
            Label.text = [self pickerView:pickerView titleForRow:row forComponent:component];
            return Label;
        }

        //根据month和year计算对应的天数
        -(void)calculateDayWithMonth:(int) month andYear:(int) year{
            float yearF = [self.year floatValue]/4; //能被4整除的是闰年
            float yearI = (int)yearF; //若yearI和yearF不一样,也就是说没有被整除,则不是闰年
                //当然以上计算没有包括:能被100整除,但不能被400整除的,不是闰年,因为2000年已过2100年还远....
            switch (month) {
                case 1:_dayNum = 31; break;
                case 2:
                    if(yearF != yearI){_dayNum = 28;}else{
                        _dayNum = 29;}break;
                case 3:_dayNum = 31;break;
                case 4:_dayNum = 30;break;
                case 5:_dayNum = 31;break;
                case 6:_dayNum = 30;break;
                case 7:_dayNum = 31;break;
                case 8:_dayNum = 31;break;
                case 9:_dayNum = 30;break;
                case 10:_dayNum = 31;break;
                case 11:_dayNum = 30;break;
                case 12:_dayNum = 31;break;
                default:_dayNum = 31;break;
            }
            [self setDaysForMonth:_dayNum]; //此处调用函数,将dayArray重新赋值;
        }

        @end

五、点击按钮,显示MSUDatePopView

        self.shadowView.hidden = NO;
            self.popView.hidden = NO;

六、实现MSUDatePopView代理

    - (void)datePopViewCompleteBtnClickWithStartStr:(NSString *)startStr stopStr:(NSString *)stopStr{
        self.shadowView.hidden = YES;

        self.startStr = startStr;
        self.stopStr = stopStr;
        self.tableView.mj_header = [MSUDIYHeader headerWithRefreshingTarget:self refreshingAction:@selector(loadNewData2)];
        [self.tableView.mj_header beginRefreshing];

    }
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