iOS-自定义起始时间选择器视图

冷不防 2022-05-31 09:52 158阅读 0赞

# 概述 #

自定义起始时间选择器视图, 调起时间选择器, 传值(起始时间/截止时间), 两者时间均要合理, 不能超过未来时间, 并且起始时间不能大于截止时间. 点击取消或空白处收起时间选择器.

# 详细 #

#### 代码下载：[http://www.demodashi.com/demo/10670.html][http_www.demodashi.com_demo_10670.html] ####

随着界面的整体效果的各种展现, 起始时间选择器的展现也需求突出!

最近项目中发现时间选择器使用处还挺多, 数了数原型图发现有6处. 便决定自定义时间选择器视图写个 Demo, 封装好在所需控制器里直接调用!

#### 一、实现功能及主要思路 ####

实现功能:

其中两者时间(起始时间/截止时间)是可以做限制,例如:当月月初1日 到 当天时间.

主要思路:

*  1. 创建时间选择器Picker 且确认取消按钮实现功能逻辑
 *  2. 创建展示时间菜单的按钮视图 (按钮: 图片在右,标题在左的按钮)
 *  3. 创建时间选择器视图 且 起始时间/截止时间逻辑判断
 *  4. 使用代理传值起始时间/截止时间(时间串转换)

#### 二、程序实现 ####

第一步. 创建时间选择器Picker 且确认取消按钮实现功能逻辑

自定义ZLDatePickerView 文件:

@property (nonatomic, assign) id<ZLDatePickerViewDelegate> deleagte;
    // 最初/小时间(一般为左边值)
    @property (nonatomic, strong) NSDate *minimumDate;
    // 截止时间(一般为右边值)
    @property (nonatomic, strong) NSDate *maximumDate;
    // 当前选择时间
    @property (nonatomic, strong) NSDate *date;
    + (instancetype)datePickerView;
    - (void)showFrom:(UIView *)view;

使用代理传值:

@protocol ZLDatePickerViewDelegate <NSObject>
    - (void)datePickerView:(ZLDatePickerView *)pickerView backTimeString:(NSString *)string To:(UIView *)view;
    @end

使用 xib 展现datePicker:

+ (instancetype)datePickerView {
        
        ZLDatePickerView *picker = [[NSBundle mainBundle] loadNibNamed:@"ZLDatePickerView" owner:nil options:nil].lastObject;
        picker.frame = CGRectMake(0, UI_View_Height - 250, UI_View_Width, 250);
        picker.maximumDate = [NSDate date];
        
        return picker;
    }
    - (void)showFrom:(UIView *)view {
        UIView *bgView = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
        bgView.backgroundColor = [UIColor lightGrayColor];
        bgView.alpha = 0.5;
        
        UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tap:)];
        [bgView addGestureRecognizer:tap];
        
        self.fromView = view;
        self.bgView = bgView;
        [[UIApplication sharedApplication].keyWindow addSubview:self.bgView];
        [[UIApplication sharedApplication].keyWindow addSubview:self];
    }

起始时间/截止时间设值:

- (void)setMinimumDate:(NSDate *)minimumDate {
        self.datePicker.minimumDate = minimumDate;
    }
    - (void)setMaximumDate:(NSDate *)maximumDate {
        self.datePicker.maximumDate = maximumDate;
    }
    - (void)setDate:(NSDate *)date {
        self.datePicker.date = date;
    }

确认/取消按钮实现功能逻辑:

- (IBAction)cancel:(id)sender {
        [self dismiss];
    }
    - (IBAction)makeSure:(id)sender {
        
        [self dismiss];
        
        NSDate *date = self.datePicker.date;
        
        if ([self.deleagte respondsToSelector:@selector(datePickerView:backTimeString:To:)]) {
            [self.deleagte datePickerView:self backTimeString:[self fomatterDate:date] To:self.fromView];
        }
    }

第二步. 创建展示时间菜单的按钮视图 (按钮: 图片在右,标题在左的按钮)

这个可以根据需求来,有些不需要这个按钮图片在右边的,则没必要添加.

自定义ZLOppositeButton文件:

- (void)layoutSubviews {
        [super layoutSubviews];
        
        CGFloat margin = 10;
        
        // 替换 title 和 image 的位置
        // 图片在右,标题在左
        // 由于 button 内部的尺寸是自适应的.调整尺寸即可
        CGFloat maxWidth = self.width - self.imageView.width - margin;
        if (self.titleLabel.width >= maxWidth) {
            self.titleLabel.width = maxWidth;
        }
        
        CGFloat totalWidth = self.titleLabel.width + self.imageView.width;
        
        self.titleLabel.x =  (self.width - totalWidth - margin) * 0.5;
        self.imageView.x = CGRectGetMaxX(self.titleLabel.frame) + margin;
    }

接着利用上面的按钮创建一个展示时间菜单的按钮视图ZLTimeBtn文件:

- (void)setup {
        self.backgroundColor = [UIColor clearColor];
        [self setImage:[UIImage imageNamed:@"xiangxiadianji"] forState:UIControlStateNormal];
        [self setTitle:[self timeStringDefault] forState:UIControlStateNormal];
        [self setTitleColor:ZLColor(102, 102, 102) forState:UIControlStateNormal];
        self.titleLabel.font = [UIFont systemFontOfSize:14];
    }
    // 时间默认展示当天
    - (NSString *)timeStringDefault {
        NSDate *date = [NSDate date];
        return [date timeFormat:@"yyyy-MM-dd"];
    }

其中我们上传时间一般都是字符串而不是时间戳, 则需要进行转换:

#import "NSDate+ZLDateTimeStr.h"

- (NSString *)timeFormat:(NSString *)dateFormat {
        
        NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
        [formatter setDateStyle:NSDateFormatterMediumStyle];
        [formatter setTimeStyle:NSDateFormatterShortStyle];
        [formatter setTimeZone:[NSTimeZone timeZoneWithAbbreviation:@"UTC"]];
        [formatter setDateFormat:dateFormat];
        
        return [formatter stringFromDate:self];
    }

第三步. 创建时间选择器视图 且 起始时间/截止时间逻辑判断

利用第二步自定义的按钮来自定义ZLTimeView文件:

- (void)layoutSubviews {
        [super layoutSubviews];
        
        self.beginTimeBtn.frame = CGRectMake(0, 0, self.width / 5.0 * 2, self.height);
        self.label.frame = CGRectMake(CGRectGetMaxX(self.beginTimeBtn.frame), 0, self.width / 5, self.height);
        self.endTimeBtn.frame = CGRectMake(CGRectGetMaxX(self.label.frame),0 , self.width / 5.0 * 2, self.height);
        self.line.frame = CGRectMake(0, self.height - 1, self.width, 1);
    }

- (void)setupSubview {
        // 起始时间按钮
        YYPTimeBtn *beginTimeBtn = [[YYPTimeBtn alloc] init];
        beginTimeBtn.backgroundColor = [UIColor clearColor];
        [beginTimeBtn addTarget:self action:@selector(beginTimeBtnClick:) forControlEvents:UIControlEventTouchUpInside];
        // 起始时间默认展示当月一号
     //   [beginTimeBtn setTitle:[self timeStringDefaultWith:@"yyyy-MM-01"] forState:UIControlStateNormal];
        [self addSubview:beginTimeBtn];
        self.beginTimeBtn = beginTimeBtn;
        
        // 至label
        UILabel *label = [[UILabel alloc] init];
        label.backgroundColor = [UIColor clearColor];
        label.text = @"——";
        label.textColor = YYPWhiteTitleColor;
        label.font = [UIFont systemFontOfSize:14];
        label.textAlignment = NSTextAlignmentCenter;
        self.label = label;
        [self addSubview:label];
        
        // 终止时间按钮
        YYPTimeBtn *endTimeBtn = [[YYPTimeBtn alloc] init];
        [endTimeBtn addTarget:self action:@selector(endTimeBtnClick:) forControlEvents:UIControlEventTouchUpInside];
        // 终止时间默认展示当天
     //   [endTimeBtn setTitle:[self timeStringDefaultWith:@"yyyy-MM-dd"] forState:UIControlStateNormal];
        self.endTimeBtn = endTimeBtn;
        [self addSubview:endTimeBtn];
        
        UIView *line = [[UIView alloc] init];
        line.backgroundColor = YYPColor(204, 204, 204);
        self.line = line;
        [self addSubview:line];
    }

这里强调一点: 如果默认展示的起始时间均为当天时间时,则在可在自定义按钮里设置就好,不需添加下面方法.

// 自定义默认展示的当月起始时间
    - (NSString *)timeStringDefaultWith:(NSString *)timeFormat {
        NSDate *date = [NSDate date];
        return [date timeFormat:timeFormat];
    }

使用代理:

@protocol ZLTimeViewDelegate <NSObject>
    /**
     *  时间选择器视图
     *
     *  @param beginTime           起始时间/开始时间
     *  @param endTime             终止时间按/结束时间
     *
     */
    - (void)timeView:(ZLTimeView *)timeView seletedDateBegin:(NSString *)beginTime end:(NSString *)endTime;
    @end

使用第一步创建的时间选择器Picker, 来进行起始时间/截止时间逻辑判断:

#pragma mark - ZLDatePickerViewDelegate
    - (void)beginTimeBtnClick:(UIButton *)btn {
        
        ZLDatePickerView *beginTimePV = [ZLDatePickerView datePickerView];
        beginTimePV.date = [NSDate stringChangeTimeFormat:@"yyyy-MM-dd" string:btn.titleLabel.text];
        if (self.maxDate) {
            beginTimePV.maximumDate = self.maxDate;
        }
        beginTimePV.deleagte = self;
        [beginTimePV showFrom:btn];
    }
    - (void)endTimeBtnClick:(UIButton *)btn {
        
        ZLDatePickerView *endTimePV = [ZLDatePickerView datePickerView];
        endTimePV.date = [NSDate stringChangeTimeFormat:@"yyyy-MM-dd" string:btn.titleLabel.text];
        if (self.minDate) {
            endTimePV.minimumDate = self.minDate;
        }
        
        endTimePV.deleagte = self;
        [endTimePV showFrom:btn];
    }
    - (void)datePickerView:(ZLDatePickerView *)pickerView backTimeString:(NSString *)string To:(UIView *)view {
        UIButton *btn = (UIButton *)view;
        if (btn == self.beginTimeBtn) {
            self.minDate = [NSDate stringChangeTimeFormat:@"yyyy-MM-dd" string:string];
        }
        if (btn == self.endTimeBtn) {
            self.maxDate = [NSDate stringChangeTimeFormat:@"yyyy-MM-dd" string:string];
        }
        
        [btn setTitle:string forState:UIControlStateNormal];
        
        if ([self.delegate respondsToSelector:@selector(timeView:seletedDateBegin:end:)]) {
            [self.delegate timeView:self seletedDateBegin:self.beginTimeBtn.titleLabel.text end:self.endTimeBtn.titleLabel.text];
        }
    }

第四步. 使用代理传值起始时间/截止时间

在所需控制器里创建起始时间选择器控件:

#import "ZLTimeView.h"

懒加载:

- (ZLTimeView *)timeView {
        if (!_timeView) {
            ZLTimeView *timeView = [[ZLTimeView alloc] initWithFrame:CGRectMake(0, 100, UI_View_Width, 50)];
            timeView.backgroundColor = [UIColor greenColor];
            timeView.delegate = self;
            _timeView = timeView;
        }
        return _timeView;
    }

创建添加起始时间选择器控件:

[self.view addSubview:self.timeView];

使用代理<ZLTimeViewDelegate>:

#pragma mark - ZLTimeViewDelegate
    - (void)timeView:(ZLTimeView *)timeView seletedDateBegin:(NSString *)beginTime end:(NSString *)endTime {
        // TODO: 进行上传时间段
    }

#### 三、压缩文件截图及运行效果 ####

1.  压缩文件截图:![F17EC04A-4787-45D0-BA94-A61A85A73E25.png][]

2. 项目截图

![C3DFB9C1-207F-46A1-8BD7-75F35C74591F.png][]

3.运行效果:

![时间选择器.gif][.gif]

4.效果截图:

![截图.png][.png]

#### 四、其他补充 ####

界面性问题可以根据自己项目需求调整即可, 具体可参考代码, 项目能够直接运行!

#### 注：本文著作权归作者，由demo大师（[http://www.demodashi.com][http_www.demodashi.com]）宣传，拒绝转载，转载需要作者授权 ####

[http_www.demodashi.com_demo_10670.html]: http://www.demodashi.com/demo/10670.html
[F17EC04A-4787-45D0-BA94-A61A85A73E25.png]: /images/20220531/47006ab084b743d8952eef51861884ad.png
[C3DFB9C1-207F-46A1-8BD7-75F35C74591F.png]: /images/20220531/35aab17bb9674b55afbb98ddc18d333d.png
[.gif]: /images/20220531/8c2c3594a6dc4939a15f42422e275c72.png
[.png]: /images/20220531/6f67ebfc092d44a4911820de943cb4d4.png
[http_www.demodashi.com]: http://www.demodashi.com/