iOS一个弹出的时间选择器视图(UIDatePicker) iOS开发

效果图:
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代码:

#define kScreen_Width [UIScreen mainScreen].bounds.size.width #define kScreen_Height [UIScreen mainScreen].bounds.size.height#import @protocol SYDatePickerDelegate @optional //当UIDatePicker值变化时所用到的代理 - (void)picker:(UIDatePicker *)picker ValueChanged:(NSDate *)date; @end@interface SYDatePicker : UIView@property(weak, nonatomic) id delegate; @property(strong, nonatomic) UIDatePicker *picker; - (void)showInView:(UIView *)view withFrame:(CGRect)frame andDatePickerMode:(UIDatePickerMode)mode; - (void)dismiss; - (void)valueChanged:(UIDatePicker *)picker; @end

#import "SYDatePicker.h"@implementation SYDatePicker- (void)showInView:(UIView *)view withFrame:(CGRect)frame andDatePickerMode:(UIDatePickerMode)mode{ self.frame = frame; self.backgroundColor = [UIColor lightGrayColor]; if(!self.picker){ self.picker = [[UIDatePicker alloc] initWithFrame:CGRectMake(0, 46, frame.size.width, frame.size.height - 38)]; }self.picker.datePickerMode = mode; [self.picker addTarget:self action:@selector(valueChanged:) forControlEvents:UIControlEventValueChanged]; [self addSubview:self.picker]; UIButton *btnDone = [UIButton buttonWithType:UIButtonTypeSystem]; btnDone.frame = CGRectMake(8, 8, 50, 30); [btnDone setTitle:@"完成" forState:UIControlStateNormal]; [btnDone addTarget:self action:@selector(pickDone) forControlEvents:UIControlEventTouchUpInside]; [self addSubview:btnDone]; [view addSubview:self]; self.frame = CGRectMake(0, kScreen_Height, kScreen_Width, 0); [UIView animateWithDuration:0.3 animations:^{ self.frame = frame; }]; }- (void)pickDone{ if (![self.picker respondsToSelector:@selector(valueChanged:)]) { [self.delegate picker:self.picker ValueChanged:self.picker.date]; } [self dismiss]; }- (void)dismiss{ [UIView animateWithDuration:0.3 animations:^{ self.frame = CGRectMake(0, kScreen_Height, kScreen_Width, 0); } completion:^(BOOL finished) { [self removeFromSuperview]; }]; }

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【iOS一个弹出的时间选择器视图(UIDatePicker)】