概述
详细
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:
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.
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:
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1. 创建时间选择器Picker 且确认取消按钮实现功能逻辑
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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)
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3. 创建时间选择器视图 且 起始时间/截止时间逻辑判断
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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
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压缩文件截图:
2. 项目截图
3.运行效果:
4.效果截图:
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!