UIDatePicker设置最小和最大小时 [英] UIDatePicker setting minimum and maximum hour

问题描述

如何设置UIDatePicker的最小和最大小时数？完全可能吗？

How to set minimum and maximum hour to UIDatePicker ? At all is it possible ?

我知道如何设置最小和最大日期：

I know how to set minimum and maximum date:

[datePicker setMinimumDate：今天];
[datePicker setMaximumDate：nextMonthDay];

[datePicker setMinimumDate: today]; [datePicker setMaximumDate: nextMonthDay];

我想要实现的是，选择器用户可以选择每天上午8点到晚上10点。

What i want to achieve is that in picker user could select from 8 am to 10 pm every day.

谢谢。

推荐答案

希望以下代码可以帮助您。

Hope the following code help you.

    - (IBAction)dataPickerValueChanged:(UIDatePicker *)sender {

        NSDateComponents *dateComponents = [[NSCalendar currentCalendar] components:NSHourCalendarUnit fromDate:[testDatePicker date]];


        if ([dateComponents hour] > 8 && [dateComponents hour] < 22) {
            UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"Error!" message:@"This time cant be selected" delegate:nil cancelButtonTitle:@"Dismiss" otherButtonTitles: nil];
            [alert show];
            return;
        }

         lblDate.text = [sender date];

    }

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