iOS自定义日期选择器
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2022-05-25 22:57:51
前言封装了一个日期选择器,解决两个问题: 1、点击textfield,键盘弹出和日期选择器弹出的逻辑处理; 2、同一个界面需要多次用到日期选择器时,判断点击的textfield;一、封装日期选择器类y...
前言
封装了一个日期选择器,解决两个问题:
1、点击textfield,键盘弹出和日期选择器弹出的逻辑处理;
2、同一个界面需要多次用到日期选择器时,判断点击的textfield;
一、封装日期选择器类ycdatepickerview
1、新建一个类,基于uiview,取名ycdatepickerview。
2、ycdatepickerview类中.h文件代码如下:
typedef void (^mybasicblock)(id result); #import <uikit/uikit.h> @interface ycdatepickerview : uiview @property (nonatomic, strong) uibutton *btnconfirm; @property (nonatomic, strong) uibutton *btncancel; @property (nonatomic, strong) uidatepicker *datepicker; @property (nonatomic, copy) mybasicblock selectblock; + (ycdatepickerview *)datepickerviewwithmode:(uidatepickermode) datepickermode bolck:(mybasicblock)block; @end
3、ycdatepickerview类中.m文件代码如下:
#define screen_width [[uiscreen mainscreen] bounds].size.width #define screen_height [[uiscreen mainscreen] bounds].size.height #define ktopbarviewheight 40 #define kbutton_width 40 #define kbutton_height 40 #define kdatepicker_height 256 #import "ycdatepickerview.h" @implementation ycdatepickerview - (id)initwithframe:(cgrect)frame { self = [super initwithframe:frame]; if (self) { uiview *topbarview = [[uiview alloc] initwithframe:cgrectmake(0, 0, self.frame.size.width, ktopbarviewheight)]; topbarview.backgroundcolor = [uicolor orangecolor]; [self addsubview:topbarview]; _btnconfirm = [[uibutton alloc] initwithframe:cgrectmake(self.frame.size.width-kbutton_width-10, 0, kbutton_width, kbutton_height)]; [_btnconfirm addtarget:self action:@selector(btnconfirm:) forcontrolevents:uicontroleventtouchupinside]; [_btnconfirm settitle:@"确定" forstate:uicontrolstatenormal]; [topbarview addsubview:_btnconfirm]; _btncancel = [[uibutton alloc] initwithframe:cgrectmake(10, 0, kbutton_width, kbutton_height)]; [_btncancel addtarget:self action:@selector(btncancel:) forcontrolevents:uicontroleventtouchupinside]; [_btncancel settitle:@"取消" forstate:uicontrolstatenormal]; [topbarview addsubview:_btncancel]; _datepicker = [[uidatepicker alloc] initwithframe:cgrectmake(0, cgrectgetmaxy(topbarview.frame), self.frame.size.width, self.frame.size.height-ktopbarviewheight)]; _datepicker.backgroundcolor = [uicolor whitecolor]; [self addsubview:_datepicker]; } return self; } - (void)btnconfirm:(id)sender { if (self.selectblock) { self.selectblock(self.datepicker.date); } } - (void)btncancel:(id)sender { if (self.selectblock) { self.selectblock(nil); } } + (ycdatepickerview *)datepickerviewwithmode:(uidatepickermode) datepickermode bolck:(mybasicblock)block { ycdatepickerview *picker = [[ycdatepickerview alloc] initwithframe:cgrectmake(0, 0, screen_width, kdatepicker_height)]; picker.datepicker.datepickermode = datepickermode; picker.selectblock = block; return picker; } @end
二、ycdatepickerview的使用
1、在viewcontroller中导入头文件
#import "ycdatepickerview.h"
2、在viewcontroller.m中添加如下代码
#define screen_width [[uiscreen mainscreen] bounds].size.width #define screen_height [[uiscreen mainscreen] bounds].size.height #import "viewcontroller.h" #import "ycdatepickerview.h" @interface viewcontroller () @property (retain, nonatomic) ycdatepickerview *datepicker; @end @implementation viewcontroller - (void)viewdidload { [super viewdidload]; uitextfield *begin = [[uitextfield alloc] initwithframe:cgrectmake(10, 70, screen_width-20, 30)]; begin.placeholder = @"请输入开始时间"; begin.borderstyle = uitextborderstyleroundedrect; [self.view addsubview:begin]; __weak viewcontroller *weakself = self; begin.inputview = [ycdatepickerview datepickerviewwithmode:uidatepickermodedate bolck:^(nsdate *result) { if (result) { begin.text = [weakself datetostring:result]; } [begin resignfirstresponder]; }]; uitextfield *end = [[uitextfield alloc] initwithframe:cgrectmake(10, 120, screen_width-20, 30)]; end.placeholder = @"请输入结束时间"; end.borderstyle = uitextborderstyleroundedrect; [self.view addsubview:end]; end.inputview = [ycdatepickerview datepickerviewwithmode:uidatepickermodedate bolck:^(nsdate *result) { if (result) { end.text = [weakself datetostring:result]; } [end resignfirstresponder]; }]; } //日期转为字符串 - (nsstring *)datetostring:(nsdate *)date { nsdateformatter *dateformatter = [[nsdateformatter alloc] init]; [dateformatter setdateformat:@"yyyy-mm-dd hh:mm:ss"]; nsstring *strdate = [dateformatter stringfromdate:date]; return strdate; } @end
三、效果图
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。