自定义UIPickerView

Question

我正在尝试创建自定义UIPickerView，如下所示......：

http://img824.imageshack.us/img824/3015/pickercustom.png

示例： 从“8h15”到“12h15”

我对这个概念完全失明。

请帮助我......任何想法，想法都会受到赞赏。

Answer 1

请参阅documentation of UIPickerView。

Answer 2

它可能不是DatePicker，它可能是UIPickerView的一个实例，它的配置方式如下：

http://developer.apple.com/library/ios/#documentation/uikit/reference/UIPickerView_Class/Reference/UIPickerView.html

Answer 3

使用UIDatePicker无法做到这一点。请改用PickerView。您可以连续显示“8h15”到“12h15”。

Answer 4

您可以将UIPickerView控件与3段一起使用。填充每个细分的预定义数据。

Answer 5

您必须自定义UIPickerView。要选择小时，您应该使用您想要的值/标题创建两个数组。

    UIPickerView *pickerView = [[UIPickerView alloc] initWithFrame:CGRectMake(22, 170, 275, 217)];
    pickerView.delegate = self;
    pickerView.dataSource = self;
    pickerView.showsSelectionIndicator = YES;
    pickerView.opaque = NO;
    [self.view addSubview:pickerView];
    [pickerView release];

和委托方法

    - (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)thePickerView {

return 3;
    }

   - (NSInteger)pickerView:(UIPickerView *)thePickerView numberOfRowsInComponent:    (NSInteger)component {
NSInteger count =   0;
switch (component) {
    case 0:
        count   =   [arrayHours1 count];
        break;
            case 1:
                    count   =       1;
    case 2:
        count   =   [arrayHours2 count];
        break;
}
return count;
    }

    - (NSString *)pickerView:(UIPickerView *)thePickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component {
NSString *title =   @"";
switch (component) {
    case 0:
        title =  [arrayHours1 objectAtIndex:row];
        break;
    case 2:
        title   =   [arrayHours2 objectAtIndex:row];
        break;
}
return title;

    }

希望这有帮助！

Answer 6

你可以查一下： -

代码

NSDate * choosen = datePickerView。日期;

        NSDateFormatter *formatter = [[NSDateFormatter alloc]init];

        [formatter setDateFormat:@"yyyy-MM-dd"];

        //[formatter setDateFormat:@"dd-MM-yyyy"];

        NSString *weekday = [formatter stringFromDate:choosen];

        invoiveDateTxtFld.text = [[NSString alloc] initWithFormat:@"%@", weekday];