ios自定义uidatepicker日期选择器视图 ，首先看一下效果图：
下面贴上相关代码：
viewcontroller：
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#import <uikit/uikit.h>
@interface viewcontroller : uiviewcontroller
@end
#import "viewcontroller.h"
#import "hwdatepicker.h"
#define mainw [uiscreen mainscreen].bounds.size.width
#define mainh [uiscreen mainscreen].bounds.size.height
@interface viewcontroller ()<uitextfielddelegate, hwdatepickerdelegate>
@property (nonatomic, weak) hwdatepicker *datepicker;
@property (nonatomic, strong) uitextfield *datetextfield;
@end
@implementation viewcontroller
- (void)viewdidload {
[super viewdidload];
self.view.backgroundcolor = [uicolor blackcolor];
//创建控件
[self creatcontrol];
}
- (void)creatcontrol
{
//textfield
_datetextfield = [[uitextfield alloc] initwithframe:cgrectmake(mainw * 0.05, mainw * 0.72, mainw * 0.9, mainw * 0.12)];
_datetextfield.background = [uiimage imagenamed:@"textfieldbj"];
_datetextfield.textalignment = nstextalignmentright;
_datetextfield.placeholder = @"请设置日期";
_datetextfield.delegate = self;
uilabel *lab2 = [[uilabel alloc] initwithframe:cgrectmake(0, 0, mainw * 0.4, mainw * 0.12)];
lab2.textalignment = nstextalignmentleft;
lab2.text = @" 日期";
lab2.textcolor = [uicolor graycolor];
_datetextfield.leftview = lab2;
_datetextfield.leftviewmode = uitextfieldviewmodealways;
uilabel *lab22 = [[uilabel alloc] initwithframe:cgrectmake(mainw * 0.12 - 15, 0, 15, mainw * 0.12)];
_datetextfield.rightview = lab22;
_datetextfield.rightviewmode = uitextfieldviewmodealways;
[self.view addsubview:_datetextfield];
//日期选择器
hwdatepicker *datepicker = [[hwdatepicker alloc] initwithframe:cgrectmake(mainw * 0.05, mainh, mainw * 0.9, mainw * 0.5)];
datepicker.delegate = self;
[self.view addsubview:datepicker];
self.datepicker = datepicker;
}
#pragma mark - uitextfielddelegate
- (bool)textfieldshouldbeginediting:(uitextfield *)textfield
{
if (_datepicker.frame.origin.y != mainh && _datepicker != nil) {
[_datepicker dismiss];
return no;
}else if (textfield == _datetextfield) {
[_datepicker show];
return no;
}
return yes;
}
#pragma mark - hwdatepickerdelegate
- (void)datepickerview:(hwdatepicker *)datepickerview didclicksurebtnwithselectdate:(nsstring *)date
{
_datetextfield.text = date;
}
@end
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hwdatepicker：
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#import <uikit/uikit.h>
@class hwdatepicker;
@protocol hwdatepickerdelegate <nsobject>
/**
* hwdatepicker确定按钮点击代理事件
*
* @param datepickerview hwdatepicker
* @param date 选中的日期
*/
- (void)datepickerview:(hwdatepicker *)datepickerview didclicksurebtnwithselectdate:(nsstring *)date;
@end
@interface hwdatepicker : uiview
@property (nonatomic, weak) id<hwdatepickerdelegate> delegate;
- (void)show;
- (void)dismiss;
@end
#import "hwdatepicker.h"
//获得屏幕的宽高
#define mainw [uiscreen mainscreen].bounds.size.width
#define mainh [uiscreen mainscreen].bounds.size.height
@interface hwdatepicker ()
@property (nonatomic, strong) uidatepicker *datepicker;
@end
@implementation hwdatepicker
- (id)initwithframe:(cgrect)frame
{
if (self = [super initwithframe:frame]) {
//背景框
uiimageview *back = [[uiimageview alloc] initwithframe:cgrectmake(0, 0, self.bounds.size.width, self.bounds.size.height)];
back.image = [uiimage imagenamed:@"datepickerbj"];
[self addsubview:back];
//日期选择器
_datepicker = [[uidatepicker alloc] init];
_datepicker.frame = cgrectmake(10, 10, self.frame.size.width - 20, 120);
_datepicker.backgroundcolor = [uicolor clearcolor];
[_datepicker setdatepickermode:uidatepickermodedate];
nslocale *locale = [[nslocale alloc] initwithlocaleidentifier:@"zh_cn"];
_datepicker.locale = locale;
nsdateformatter *formatter_mindate = [[nsdateformatter alloc] init];
[formatter_mindate setdateformat:@"yyyy-mm-dd"];
nsdate *mindate = [formatter_mindate datefromstring:@"2008-01-01"];
formatter_mindate = nil;
[_datepicker setminimumdate:mindate];
[self addsubview:_datepicker];
//确定按钮
uibutton *surebtn = [[uibutton alloc] initwithframe:cgrectmake((self.frame.size.width - mainw * 0.36) * 0.5, self.frame.size.height * 0.747, mainw * 0.36, mainw * 0.11)];
[surebtn setimage:[uiimage imagenamed:@"surebtn"] forstate:uicontrolstatenormal];
[surebtn addtarget:self action:@selector(surebtnonclick) forcontrolevents:uicontroleventtouchupinside];
[self addsubview:surebtn];
}
return self;
}
- (void)surebtnonclick
{
[self dismiss];
if (_delegate && [_delegate respondstoselector:@selector(datepickerview:didclicksurebtnwithselectdate:)]) {
[_delegate datepickerview:self didclicksurebtnwithselectdate:[self getdatestring]];
}
}
- (nsstring *)getdatestring
{
nsdateformatter *dateformatter = [[nsdateformatter alloc] init];
[dateformatter setdateformat:@"yyyy-mm-dd"];
nsstring *date = [dateformatter stringfromdate:[self.datepicker date]];
return date;
}
- (void)show
{
[uiview animatewithduration:0.3 animations:^{
self.frame = cgrectmake(mainw * 0.05, mainh - mainw * 0.75, mainw * 0.9, mainw * 0.5);
}];
}
- (void)dismiss
{
[uiview animatewithduration:0.3 animations:^{
self.frame = cgrectmake(mainw * 0.05, mainh, mainw * 0.9, mainw * 0.5);
}];
}
@end
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原文链接：https://blog.csdn.net/hero_wqb/article/details/51277512