这篇文章主要介绍了iOS如何实现自定义起始时间选择器视图,具有一定借鉴价值,感兴趣的朋友可以参考下,希望大家阅读完这篇文章之后大有收获,下面让小编带着大家一起了解一下。
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主要功能:
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.
如果需要可以根据自己的需求来修改界面, 效果如下:
主要步骤:
创建时间选择器Picker 且确认取消按钮实现功能逻辑
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)
创建时间选择器视图 且 起始时间/截止时间逻辑判断
使用代理传值起始时间/截止时间(时间串转换)
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) iddeleagte; // 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- (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]; } - (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:
@property (nonatomic, weak) ZLTimeBtn *beginTimeBtn; @property (nonatomic, weak) UILabel *label; @property (nonatomic, weak) ZLTimeBtn *endTimeBtn;
- (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); }
使用代理:
@protocol ZLTimeViewDelegate/** * 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"
@property (nonatomic, copy) NSString *begintime; @property (nonatomic, copy) NSString *endtime; @property (nonatomic, weak) UIButton *beginTimeBtn; @property (nonatomic, weak) UIButton *endTimeBtn; @property (nonatomic, strong) ZLTimeView *timeView;
#pragma mark - 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; }
// 起始时间选择器控件 [self.view addSubview:self.timeView];
使用代理:
#pragma mark - ZLTimeViewDelegate - (void)timeView:(ZLTimeView *)timeView seletedDateBegin:(NSString *)beginTime end:(NSString *)endTime { // TODO: 进行上传时间段 }
当多出使用时,用起来是不是很方便, 这时候测试看下效果:
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