UI进阶--UIDatePicker和UIToolBar控件

1 @property (nonatomic) UIDatePickerMode datePickerMode; // default is UIDatePickerModeDateAndTime。UIDatePicker的格式，默认是时间加日期的显示方式
2 @property (nonatomic, retain) NSLocale   *locale;   // default is [NSLocale currentLocale]. setting nil returns to default。本地化。
3 @property (nonatomic, copy)   NSCalendar *calendar; // default is [NSCalendar currentCalendar]. setting nil returns to default。日历。
4 @property (nonatomic, retain) NSTimeZone *timeZone; // default is nil. use current time zone or time zone from calendar。时区。
5 @property (nonatomic, retain) NSDate *date;        // default is current date when picker created. Ignored in countdown timer mode. for that mode, picker starts at 0:00。时间。
6 @property (nonatomic, retain) NSDate *minimumDate; // specify min/max date range. default is nil. When min > max, the values are ignored. Ignored in countdown timer mode。最小时间。
7 @property (nonatomic, retain) NSDate *maximumDate; // default is nil。最大时间。

 1 //
 2 //  JWKeyboardToolbar.h
 3 //  DatePicker
 4 //
 5 //  Created by xiaomoge on 14/12/27.
 6 //  Copyright (c) 2014年 xiaomoge. All rights reserved.
 7 //
 8 
 9 #import <UIKit/UIKit.h>
10 
11 @class JWKeyboardToolbar;
12 @protocol JWKeyboardToolbarDelegate <NSObject>
13 
14 @optional
15 
16 /**
17  *  item.tag  0 表示上一个按钮 1:下一个按钮 2:done完成按钮
18  */
19 -(void)keyboardToolbar:(JWKeyboardToolbar *)toolbar btndidSelected:(UIBarButtonItem *)item;
20 
21 @end
22 
23 @interface JWKeyboardToolbar : UIToolbar
24 
25 +(instancetype)toolbar;
26 
27 @property (weak, nonatomic) id<JWKeyboardToolbarDelegate> kbDelegate;//键盘的代理
28 
29 @end

 1 //
 2 //  JWKeyboardToolbar.m
 3 //  DatePicker
 4 //
 5 //  Created by xiaomoge on 14/12/27.
 6 //  Copyright (c) 2014年 xiaomoge. All rights reserved.
 7 //
 8 
 9 #import "JWKeyboardToolbar.h"
10 
11 
12 @interface JWKeyboardToolbar()
13 
14 @end
15 
16 @implementation JWKeyboardToolbar
17 
18 +(instancetype)toolbar{
19     return [[[NSBundle mainBundle] loadNibNamed:@"JWKeyboardToolbar" owner:nil options:nil] lastObject];//JWKeyboardToolbar.xib为上面xib图
20 }
21 
22 - (IBAction)itemBtnClick:(id)sender {
23     
24     //判断代理有没有实现方法
25     if ([self.kbDelegate respondsToSelector:@selector(keyboardToolbar:btndidSelected:)]) {
26         [self.kbDelegate keyboardToolbar:self btndidSelected:sender];
27     }
28     
29 }
30 @end

//
//  ViewController.m
//  DatePicker
//
//  Created by xiaomoge on 14/12/26.
//  Copyright (c) 2014年 xiaomoge. All rights reserved.
//

#import "ViewController.h"
#import "JWKeyboardToolbar.h"

@interface ViewController ()<JWKeyboardToolbarDelegate>
@property (strong, nonatomic) UIDatePicker *datepicker;
@property (weak, nonatomic) IBOutlet UITextField *textField;

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    //创建datapikcer
    self.datepicker = [[UIDatePicker alloc] init];
    //本地化
    self.datepicker.locale = [[NSLocale alloc] initWithLocaleIdentifier:@"zh"];
    //日期控件格式
    self.datepicker.datePickerMode = UIDatePickerModeDate;
    
    //设置textfield的键盘
    self.textField.inputView = self.datepicker;
    //创建一个UIToolBar
    JWKeyboardToolbar *toolbar = [JWKeyboardToolbar toolbar];
    //设置键盘的代理
    toolbar.kbDelegate = self;
    //设置textfield的辅助工具条
    self.textField.inputAccessoryView = toolbar;
}

#pragma mark 自定义键盘工具条的代理方法
-(void)keyboardToolbar:(CZKeyboardToolbar *)toolbar btndidSelected:(UIBarButtonItem *)item{
    if (item.tag == 2) {//Done按钮点击
        //获取日期显示在textField
        NSDate *date = self.datepicker.date; 
        //日期转字符串
        NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
        //设置日期格式
        dateFormatter.dateFormat = @"yyyyMMdd";
        NSString *dateStr =  [dateFormatter stringFromDate:date];
        self.textField.text = dateStr;
    }
}
@end

 1 -(void)codeForToolbar{
 2     //代码创建UIToolbar
 3     UIToolbar *toolbar = [[UIToolbar alloc] init];
 4     toolbar.backgroundColor = [UIColor grayColor];
 5     //屏幕宽度
 6     CGFloat screenW = [[UIScreen mainScreen] bounds].size.width;
 7     toolbar.bounds = CGRectMake(0, 0, screenW, 44);
 8    //上一个按钮
 9     UIBarButtonItem *previousBtn = [[UIBarButtonItem alloc] initWithTitle:@"上一个" style:UIBarButtonItemStylePlain target:nil action:nil];
10     //下一个按钮
11     UIBarButtonItem *nextBtn = [[UIBarButtonItem alloc] initWithTitle:@"下一个" style:UIBarButtonItemStylePlain target:nil action:nil];
12     //done按钮
13     UIBarButtonItem *doneBtn = [[UIBarButtonItem alloc] initWithTitle:@"Done" style:UIBarButtonItemStylePlain target:nil action:nil];
14     
15     //固定长度的按钮
16     UIBarButtonItem *fixedBtn = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil];
17     //代码实现要设置宽度
18     fixedBtn.width = 10;
19 
20     //可拉伸的按钮
21     UIBarButtonItem *flexible = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil]; 
22     //添加UIToolbar里面的按钮
23     toolbar.items = @[previousBtn,fixedBtn,nextBtn,flexible,doneBtn];
24 }