Question

我的UIbutton上有一个UIViewController。点击它会打开一个UIActionSheet，其上有一个UIDatePicker和一个关闭按钮。我将UIDatePicker设置为日期模式。因此它显示今天的日期。假设我想选择2015而不是2013，我必须向下滚动。但它不允许我向下滚动。我必须向上滚动一次到2012，然后向下滚动。这似乎是一个小问题，但客户想要正确滚动。我检查了我的个人电话设置闹钟，我可以自由向下滚动。我不必向上滚动然后向下滚动。这就是按钮点击时发生的情况。

- (IBAction)btnShowDateNeededClick:(UIButton *)sender
{
    UIDatePicker *datePickerView = [[UIDatePicker alloc]init];
    datePickerView.datePickerMode = UIDatePickerModeTime;
    self.actSheet = [[ UIActionSheet alloc]init];
    UISegmentedControl *closeButton = [[UISegmentedControl alloc] initWithItems:[NSArray arrayWithObject:@"Close"]];
    closeButton.momentary = YES;
    closeButton.frame = CGRectMake(260, 7.0f, 50.0f, 30.0f);
    closeButton.segmentedControlStyle = UISegmentedControlStyleBar;
    closeButton.tintColor = [UIColor blueColor];
    closeButton.tag = 101;
    [closeButton addTarget:self action:@selector(dismissActionSheetWithTime:) forControlEvents:UIControlEventValueChanged];
    [self.actSheet addSubview:closeButton];
    [self.actSheet showInView:self.view];
    [self.actSheet addSubview:datePickerView];
    [self.actSheet sendSubviewToBack:datePickerView];
    [self.actSheet setBounds:CGRectMake(0, 0, 320, 500)];
}

如您所见，我有datePicker段控件作为添加到UIActionsheet的按钮。现在我必须更改设置或日期选择器吗？如果您需要更多信息，请询问。感谢。

Answer 1

试试这个。可能是这个帮助。

在.h文件中。

UIDatePicker *datePickerView;
UIActionSheet *Actionsheet1;

在.m文件中

在viewDidLoad方法

中

// Picker Initialization

datePickerView = [[UIDatePicker alloc] initWithFrame:CGRectMake(0, 40, 0, 0)];
datePickerView.datePickerMode = UIDatePickerModeDateAndTime;

创建一个将在按钮上单击

调用的函数

-(void) Create_Start_Date_Picker_Function
{
    Actionsheet1 = [[UIActionSheet alloc] initWithTitle:nil  delegate:self
                                              cancelButtonTitle:nil
                                         destructiveButtonTitle:nil
                                              otherButtonTitles:nil];

    Actionsheet1.actionSheetStyle = UIActionSheetStyleBlackOpaque;
    [Actionsheet1 addSubview: datePickerView];
    [Actionsheet1 showInView:self.view];
    [Actionsheet1 setBounds:CGRectMake(0, 0, 320, 485)];

    UISegmentedControl *closeButton = [[UISegmentedControl alloc] initWithItems:[NSArray arrayWithObject:@"Done"]];
    closeButton.momentary = YES;
    closeButton.frame = CGRectMake(260, 7.0f, 50.0f, 30.0f);
    closeButton.segmentedControlStyle = UISegmentedControlStyleBar;
    closeButton.tintColor = [UIColor blueColor];
    [closeButton addTarget:self action:@selector(Dismiss_Actionshit1) forControlEvents:UIControlEventValueChanged];
    [Actionsheet1 addSubview:closeButton];

}

用于解雇actionshit的方法。

-(void) Dismiss_Actionshit1
{
   // Your action sheet dismiss code
}

UIdatepicker不会自由移动

1 个答案: