這篇文章主要介紹了iOS如何實現(xiàn)自定義起始時間選擇器視圖，具有一定借鑒價值，感興趣的朋友可以參考下，希望大家閱讀完這篇文章之后大有收獲，下面讓小編帶著大家一起了解一下。
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主要功能:
調起時間選擇器, 傳值(起始時間/截止時間), 兩者時間均要合理, 不能超過未來時間, 并且起始時間不能大于截止時間. 點擊取消或空白處收起時間選擇器.
如果需要可以根據(jù)自己的需求來修改界面, 效果如下:
主要步驟:
創(chuàng)建時間選擇器Picker 且確認取消按鈕實現(xiàn)功能邏輯
創(chuàng)建展示時間菜單的按鈕視圖 (按鈕: 圖片在右,標題在左的按鈕)
創(chuàng)建時間選擇器視圖 且 起始時間/截止時間邏輯判斷
使用代理傳值起始時間/截止時間(時間串轉換)
第一步. 創(chuàng)建時間選擇器Picker 且確認取消按鈕實現(xiàn)功能邏輯
自定義ZLDatePickerView 文件:
@property (nonatomic, assign) iddeleagte; // 最初/小時間(一般為左邊值) @property (nonatomic, strong) NSDate *minimumDate; // 截止時間(一般為右邊值) @property (nonatomic, strong) NSDate *maximumDate; // 當前選擇時間 @property (nonatomic, strong) NSDate *date; + (instancetype)datePickerView; - (void)showFrom:(UIView *)view;
使用代理傳值:
@protocol ZLDatePickerViewDelegate- (void)datePickerView:(ZLDatePickerView *)pickerView backTimeString:(NSString *)string To:(UIView *)view; @end
使用 xib 展現(xiàn)datePicker:
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+ (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];
}起始時間/截止時間設值:
- (void)setMinimumDate:(NSDate *)minimumDate {
self.datePicker.minimumDate = minimumDate;
}
- (void)setMaximumDate:(NSDate *)maximumDate {
self.datePicker.maximumDate = maximumDate;
}
- (void)setDate:(NSDate *)date {
self.datePicker.date = date;
}確認/取消按鈕實現(xiàn)功能邏輯:
- (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. 創(chuàng)建展示時間菜單的按鈕視圖 (按鈕: 圖片在右,標題在左的按鈕)
這個可以根據(jù)需求來,有些不需要這個按鈕圖片在右邊的,則沒必要添加.
自定義ZLOppositeButton文件:
- (void)layoutSubviews {
[super layoutSubviews];
CGFloat margin = 10;
// 替換 title 和 image 的位置
// 圖片在右,標題在左
// 由于 button 內部的尺寸是自適應的.調整尺寸即可
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;
}接著利用上面的按鈕創(chuàng)建一個展示時間菜單的按鈕視圖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"];
}其中我們上傳時間一般都是字符串而不是時間戳, 則需要進行轉換
#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. 創(chuàng)建時間選擇器視圖 且 起始時間/截止時間邏輯判斷
利用第二步自定義的按鈕來自定義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/** * 時間選擇器視圖 * * @param beginTime 起始時間/開始時間 * @param endTime 終止時間按/結束時間 * */ - (void)timeView:(ZLTimeView *)timeView seletedDateBegin:(NSString *)beginTime end:(NSString *)endTime; @end
使用第一步創(chuàng)建的時間選擇器Picker, 來進行起始時間/截止時間邏輯判斷
#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. 使用代理傳值起始時間/截止時間
在所需控制器里創(chuàng)建起始時間選擇器控件
#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 - 懶加載
- (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;
}// 起始時間選擇器控件 [self.view addSubview:self.timeView];
使用代理:
#pragma mark - ZLTimeViewDelegate
- (void)timeView:(ZLTimeView *)timeView seletedDateBegin:(NSString *)beginTime end:(NSString *)endTime {
// TODO: 進行上傳時間段
}當多出使用時,用起來是不是很方便, 這時候測試看下效果:
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