typedef NS_ENUM(NSInteger, UIDatePickerMode) {
UIDatePickerModeTime, // Displays hour, minute, and optionally AM/PM designation depending on the locale setting (e.g. 6 | 53 | PM)
UIDatePickerModeDate, // Displays month, day, and year depending on the locale setting (e.g. November | 15 | 2007)
UIDatePickerModeDateAndTime, // Displays date, hour, minute, and optionally AM/PM designation depending on the locale setting (e.g. Wed Nov 15 | 6 | 53 | PM)
UIDatePickerModeCountDownTimer, // Displays hour and minute (e.g. 1 | 53)
}
官方的UIDatePicker只有四种模式，不能选到秒。
变态的需求必须要精确到秒，就自定义了一个。
思路
定义多个UIPickerView，用来选择年-月-日 时:分:秒。注意tag区分每个pickerView，设置好dataSource和delegate
每个pickerView显示1个component，多行row供选择。
.h
#import
@protocol WJDatePickerDelegate;
@interface WJDatePicker : UIView
@property (nonatomic, retain) NSDate* date; // 当前date
@property (nonatomic, strong) NSString* dateString;
/**
* 设置默认值为当前时间
*/
-(void)resetDateToCurrentDate;
/**
* 设置提示信息
*/
-(void)setHintsText:(NSString*)hints;
/**
* 点击确定按钮
*/
-(IBAction)actionEnter:(id)sender;
@property (nonatomic, assign) iddelegate;
@end
@protocol WJDatePickerDelegate
/**
* 代理 点击确定后的事件
*/
@optional
-(void)DatePickerDelegateEnterActionWithDataPicker:(WJDatePicker*)picker;
@end
.m实现
#import "WJDatePicker.h"
#import "NSDate+FSExtension.h"
typedef enum {
ePickerViewTagYear = 2016,
ePickerViewTagMonth,
ePickerViewTagDay,
ePickerViewTagHour,
ePickerViewTagMinute,
ePickerViewTagSecond
}PickViewTag;
@interface WJDatePicker ()
@property (nonatomic, retain) UIPickerView* yearPicker; // 年
@property (nonatomic, retain) UIPickerView* monthPicker; // 月
@property (nonatomic, retain) UIPickerView* dayPicker; // 日
@property (nonatomic, retain) UIPickerView* hourPicker; // 时
@property (nonatomic, retain) UIPickerView* minutePicker; // 分
@property (nonatomic, retain) UIPickerView* secondPicker;
@property (nonatomic, retain) UIToolbar* toolBar; // 工具条
@property (nonatomic, retain) UILabel* hintsLabel; // 提示信息
// dataSource
@property (nonatomic, retain) NSMutableArray* yearArray;
@property (nonatomic, retain) NSMutableArray* monthArray;
@property (nonatomic, retain) NSMutableArray* dayArray;
@property (nonatomic, retain) NSMutableArray* hourArray;
@property (nonatomic, retain) NSMutableArray* minuteArray;
@property (nonatomic, retain) NSMutableArray* secondArray;
@property (nonatomic, assign) NSUInteger yearValue;
@property (nonatomic, assign) NSUInteger monthValue;
@property (nonatomic, assign) NSUInteger dayValue;
@property (nonatomic, assign) NSUInteger hourValue;
@property (nonatomic, assign) NSUInteger minuteValue;
@property (nonatomic, assign) NSUInteger secondValue;
/**
* 创建数据源
*/
-(void)createDataSource;
/**
* create month Arrays
*/
-(void)createMonthArrayWithYear:(NSInteger)yearInt month:(NSInteger)monthInt;
@end
@implementation WJDatePicker
@synthesize delegate;
@synthesize date;
#pragma mark -
- (id)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:CGRectMake(0, 0, 440, 260)];
if (self) {
// Initialization code
[self setBackgroundColor:[UIColor whiteColor]];
self.yearArray = [[NSMutableArray alloc]initWithCapacity:0];
self.monthArray = [[NSMutableArray alloc]initWithCapacity:0];
self.dayArray = [[NSMutableArray alloc]initWithCapacity:0];
self.hourArray = [[NSMutableArray alloc]initWithCapacity:0];
self.minuteArray = [[NSMutableArray alloc]initWithCapacity:0];
self.secondArray = [[NSMutableArray alloc]initWithCapacity:0];
// 更新数据源
[self createDataSource];
// 创建 toolBar & hintsLabel & enter button
self.toolBar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, self.frame.size.width, 44)];
[self.toolBar setBackgroundColor:[UIColor blueColor]];
[self addSubview:self.toolBar];
// UIButton *cancleBtn = [UIButton buttonWithType:UIButtonTypeCustom];
// cancleBtn.frame = CGRectMake(0, 5, (self.frame.size.width-200)/2, 34);
// [cancleBtn setTitle:@"取消" forState:UIControlStateNormal];
// [cancleBtn addTarget:self action:@selector(actionCancle:) forControlEvents:UIControlEventTouchUpInside];
// [self.toolBar addSubview:cancleBtn];
self.hintsLabel = [[UILabel alloc] initWithFrame:CGRectMake((self.frame.size.width-200)/2, 5, 200, 34)];
self.hintsLabel.textAlignment = NSTextAlignmentCenter;
[self.hintsLabel setFont:[UIFont systemFontOfSize:15.0f]];
[self.hintsLabel setTextColor:[UIColor whiteColor]];
[self.toolBar addSubview:self.hintsLabel];
UIButton* tempBtn = [UIButton buttonWithType:UIButtonTypeCustom];
[tempBtn setTitle:@"确定" forState:UIControlStateNormal];
tempBtn.frame = CGRectMake(CGRectGetMaxX(_hintsLabel.frame), 5, (self.frame.size.width-200)/2, 34);
[tempBtn addTarget:self action:@selector(actionEnter:) forControlEvents:UIControlEventTouchUpInside];
[self.toolBar addSubview:tempBtn];
NSArray *titles = @[@"月",@"日",@"时",@"分"];
// 初始化各个视图
self.yearPicker = [[UIPickerView alloc] initWithFrame:CGRectMake(0, 44, 80, 216)];
self.monthPicker = [[UIPickerView alloc] initWithFrame:CGRectMake(81, 44, 60, 216)];
self.dayPicker = [[UIPickerView alloc] initWithFrame:CGRectMake(156, 44, 60, 216)];
self.hourPicker = [[UIPickerView alloc] initWithFrame:CGRectMake(231, 44, 60, 216)];
self.minutePicker = [[UIPickerView alloc] initWithFrame:CGRectMake(306, 44, 60, 216)];
self.secondPicker = [[UIPickerView alloc] initWithFrame:CGRectMake(381, 44, 60, 216)];
for (NSInteger i=0; i endDate) {
self.dayValue = endDate;
}
// 日
[self.dayArray removeAllObjects];
for(int i=1; i<=endDate; i++){
[self.dayArray addObject:[NSString stringWithFormat:@"%d",i]];
}
}
#pragma mark - 点击确定按钮
-(IBAction)actionEnter:(id)sender{
if (self.delegate && [self.delegate respondsToSelector:@selector(DatePickerDelegateEnterActionWithDataPicker:)]) {
[self.delegate DatePickerDelegateEnterActionWithDataPicker:self];
}
[self removeFromSuperview];
}
//- (void)actionCancle:(UIButton *)btn{
// [self removeFromSuperview];
//}
#pragma mark - 设置提示信息
-(void)setHintsText:(NSString*)hints{
[self.hintsLabel setText:hints];
}
#pragma mark -
-(void)removeFromSuperview{
self.delegate = nil;
[super removeFromSuperview];
}
@end