IOS DatePicker 和 UIBarButtonItem 常用属性

- (void)viewDidLoad
{
    [super viewDidLoad];
    //
    // self.inputTextField.inputView = [[UISwitch alloc ] init];
    
    // 1.创建时间选择器
    UIDatePicker *datePicker = [[UIDatePicker alloc] init];
    // 设置只显示日期
    datePicker.datePickerMode = UIDatePickerModeDate;
    // 设置日期为中文
    datePicker.locale = [[NSLocale alloc] initWithLocaleIdentifier:@"zh_CN"];
    
    self.inputTextField.inputView = datePicker;

// 2.创建工具条
    UIToolbar *toolbar = [[UIToolbar alloc] init];
    toolbar.barTintColor = [UIColor purpleColor];
    toolbar.frame = CGRectMake(0, 0, 320, 44);

    // 2.1给工具条添加按钮
    UIBarButtonItem *item0 = [[UIBarButtonItem alloc] initWithTitle:@"上一个" style:UIBarButtonItemStylePlain target:self action:@selector(previousBtnClick)];
    
    UIBarButtonItem *item3 = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
    
    UIBarButtonItem *item1 = [[UIBarButtonItem alloc] initWithTitle:@"下一个" style:UIBarButtonItemStylePlain target:self action:@selector(previousBtnClick)];
    UIBarButtonItem *item2 = [[UIBarButtonItem alloc] initWithTitle:@"完成" style:UIBarButtonItemStylePlain target:self action:@selector(previousBtnClick)];
    toolbar.items = @[item0, item1, item3, item2];
    
    // 设置文本输入框键盘的辅助视图
    self.inputTextField.inputAccessoryView= toolbar;
   
    
    /*
    // 1.创建最外面的大view
    UIView *view = [[UIView alloc] init];
    view.backgroundColor = [UIColor redColor];
    view.frame = CGRectMake(0, 480 - 162 - 44, 320, 162 + 44);
    
    // 2.创建工具条
    UIToolbar *toolbar = [[UIToolbar alloc] init];
    toolbar.barTintColor = [UIColor purpleColor];
    toolbar.frame = CGRectMake(0, 0, 320, 44);
    [view addSubview:toolbar];
    
    // 2.1给工具条添加按钮
    UIBarButtonItem *item0 = [[UIBarButtonItem alloc] initWithTitle:@"上一个" style:UIBarButtonItemStylePlain target:self action:@selector(previousBtnClick)];
    
    UIBarButtonItem *item3 = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
    
     UIBarButtonItem *item1 = [[UIBarButtonItem alloc] initWithTitle:@"下一个" style:UIBarButtonItemStylePlain target:self action:@selector(previousBtnClick)];
     UIBarButtonItem *item2 = [[UIBarButtonItem alloc] initWithTitle:@"完成" style:UIBarButtonItemStylePlain target:self action:@selector(previousBtnClick)];
    toolbar.items = @[item0, item1, item3, item2];
    
    // 3.创建时间选择器
    // 1.创建时间选择器
    UIDatePicker *datePicker = [[UIDatePicker alloc] init];
    // 设置只显示日期
    datePicker.datePickerMode = UIDatePickerModeDate;
    // 设置日期为中文
    datePicker.locale = [[NSLocale alloc] initWithLocaleIdentifier:@"zh_CN"];
    datePicker.frame = CGRectMake(0, 44, 320, 162);
    [view addSubview:datePicker];
    
    // 4.设置文本输入框的自定义键盘为大view
    self.inputTextField.inputView = view;
     */
｝