我想滑入UIDatePicker
当我的用户点击我的表格视图日期字段时,就像在标准联系人应用程序中一样,当用户点击生日字段时。还有一个额外的致命细节:
它位于标签栏应用程序中,我想要UIDatePicker
滑过标签栏。当用户将手机横向放置时仍然会旋转。
我展示的方式UIDatePicker
是插入视图中,然后为其位置设置动画:
[self.view addSubview: self.pickerView];
当我这样做时,UIDatePicker
显示,但不覆盖选项卡栏。
我还可以将其添加到窗口中:
[self.view.window addSubview: self.pickerView];
The UIDatePicker
正确地滑过选项卡栏,但随后,它不遵循方向。
我发现的唯一半可接受的方法是完全不使用选项卡栏,方法是使用
detailViewController.hidesBottomBarWhenPushed = YES;
但这不是我想要的:我想要详细视图中的选项卡栏。我只希望它在选择日期时消失。我不能把UIDatePicker
在它自己的控制器中hidesBottomBarWhenPushed = YES
因为这将完全覆盖屏幕,我宁愿让细节视图仍然部分可见。
欢迎任何建议。
这是我用来展示的完整代码UIDatePicker
,从一些示例代码复制而来:
- (void) doPickDate
{
NSDate *initialDateForPicker = [(ExpenseData*) self.displayedObject displayDate];
self.pickerView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleTopMargin;
self.pickerView.datePickerMode = UIDatePickerModeDate;
self.pickerView.date = initialDateForPicker;
// check if our date picker is already on screen
if (self.pickerView.superview == nil)
{
[self.view addSubview: self.pickerView];
// size up the picker view to our screen and compute the start/end frame origin for our slide up animation
// compute the start frame
CGRect screenRect = [[UIScreen mainScreen] applicationFrame];
CGSize pickerSize = [self.pickerView sizeThatFits:CGSizeZero];
CGRect startRect = CGRectMake(0.0,
screenRect.origin.y + screenRect.size.height,
pickerSize.width, pickerSize.height);
self.pickerView.frame = startRect;
// compute the end frame
CGRect pickerRect = CGRectMake(0.0,
screenRect.origin.y + screenRect.size.height - pickerSize.height,
pickerSize.width,
pickerSize.height);
// start the slide up animation
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.3];
// we need to perform some post operations after the animation is complete
[UIView setAnimationDelegate:self];
self.pickerView.frame = pickerRect;
// shrink the table vertical size to make room for the date picker
CGRect newFrame = self.tableView.frame;
newFrame.size.height -= self.pickerView.frame.size.height - 49 /* tab bar height */;
self.tableView.frame = newFrame;
[UIView commitAnimations];
// add the "Done" button to the nav bar
self.navigationItem.rightBarButtonItem = self.doneButton;
}
}