在storyBoard中直接选择对应的语言，日期格式

用代码方式显示：

- (void)viewDidLoad {

[super viewDidLoad];

// Do any additional setup after loading the view, typically from a nib.

NSLog(@"%@",[NSLocale availableLocaleIdentifiers] );

//显示日期控制的本地化

self.myDataPicker.locale = [[NSLocale alloc]initWithLocaleIdentifier:@"zh"];

}

=======固定的弹簧，，可拉伸的弹簧

#import "ViewController.h"

#import "CZKeyboardToolbar.h"

@interface ViewController ()<CZKeyboardToolbarDelegate>

@property (strong, nonatomic) UIDatePicker *datepicker;

@property (weak, nonatomic) IBOutlet UITextField *textField;

@end

@implementation ViewController

- (void)viewDidLoad {

[super viewDidLoad];

// Do any additional setup after loading the view, typically from a nib.

//创建datapikcer

self.datepicker = [[UIDatePicker alloc] init];

//本地方

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;

CZKeyboardToolbar *toolbar = [CZKeyboardToolbar 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;

NSLog(@"%@",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;

}

}

/**

*  代码创建的toolbar

*/

-(void)codeForToolbar{

//代码创建UIToolbar

UIToolbar *toolbar = [[UIToolbar alloc] init];

toolbar.backgroundColor = [UIColor grayColor];

//屏幕宽度

CGFloat screenW = [[UIScreen mainScreen] bounds].size.width;

toolbar.bounds = CGRectMake(0, 0, screenW, 44);

UIBarButtonItem *previousBtn = [[UIBarButtonItem alloc] initWithTitle:@"上一个" style:UIBarButtonItemStylePlain target:nil action:nil];

UIBarButtonItem *nextBtn = [[UIBarButtonItem alloc] initWithTitle:@"下一个" style:UIBarButtonItemStylePlain target:nil action:nil];

UIBarButtonItem *doneBtn = [[UIBarButtonItem alloc] initWithTitle:@"Done" style:UIBarButtonItemStylePlain target:nil action:nil];

//固定长度的按钮

UIBarButtonItem *fixedBtn = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil];

//代码实现要设置宽度

fixedBtn.width = 10;

//可拉伸的按钮

UIBarButtonItem *flexible = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];

//添加UIToolbar里面的按钮

toolbar.items = @[previousBtn,fixedBtn,nextBtn,flexible,doneBtn];

}

- (void)didReceiveMemoryWarning {

[super didReceiveMemoryWarning];

// Dispose of any resources that can be recreated.