datepicker自定义 -- iOS

/**
 *  创建时间选择器
 */
- (void)createPickerView {
    self.datePicker = [[UIDatePicker alloc] init];
    _datePicker.backgroundColor = [UIColor whiteColor];
    // 设置只显示中文
    [_datePicker setLocale:[NSLocale localeWithLocaleIdentifier:@"zh-CN"]];
    // 设置只显示日期
    _datePicker.datePickerMode = UIDatePickerModeDate;
    // 当光标移动到文本框时, 召出时间选择器
    self.birthTextField.inputView = _datePicker;
    // 创建工具条
    UIToolbar *toolBar = [[UIToolbar alloc] init];
// 设置背景色
    toolBar.barTintColor = [UIColor whiteColor];
    toolBar.frame = CGRectMake(, , SCREEN_WIDTH, );
    // 给工具条添加按钮
    UIBarButtonItem *cancleItem = [[UIBarButtonItem alloc] initWithTitle:@"取消" style:UIBarButtonItemStylePlain target:self action:@selector(cancel)];
    UIBarButtonItem *spaceItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:self action:nil];
    // 设置UIBarButtonSystemItemFixedSpace的宽度
    spaceItem.width = SCREEN_WIDTH - ;
    UIBarButtonItem *sureItem = [[UIBarButtonItem alloc] initWithTitle:@"确认" style:UIBarButtonItemStylePlain target:self action:@selector(sure)];
    // 设置字体颜色
    toolBar.tintColor = [UIColor redColor];
    toolBar.items = @[cancleItem, spaceItem, sureItem];
    // 设置文本输入框键盘的辅助视图
    self.birthTextField.inputAccessoryView = toolBar;
}
/**
 *  点击取消按钮
 *
 *  @param datePicker
 */
- (void)cancel {

}
/**
 *  点击确定按钮
 *
 *  @param datePicker
 */
- (void)sure {
    NSString *date = [NSString stringWithFormat:@"%@", _datePicker.date];
    NSString *birth = [date substringToIndex:];
    self.birthTextField.text = birth;
    [_birthTextField resignFirstResponder];
}

效果如下: