我已经在故事板上拖放了一个 barButtonItem 并且一直在使用这个弹出框代码，但是
[popoverController presentPopoverFromRect:self.barButonItem.frame
inView:self.view
permittedArrowDirections:UIPopoverArrowDirectionUp animated:YES];
barButtonItem.frame 不起作用，因为没有可用的 frame 属性。
让它完美运行的最佳选择是什么？
提前致谢。
目前我正在使用此代码：我正在使用此方法：
- (IBAction)buttonClicked:(UIBarButtonItem *)sender event:(UIEvent *)event
{
UIView *viewt = [[UIView alloc] init];
for(UITouch* touch in [event allTouches] )
{
if( [touch phase] == UITouchPhaseEnded )
{
viewt = [touch view];
}
}
}
self.barButtonItem.frame会变成viewt.frame.
它现在工作。这是对的吗 ？
//create a popover controller with my DatePickerViewController in it
UIViewController* popoverContent = [[UIViewController alloc] init]; //ViewController
UIView *popoverView = [[UIView alloc] init]; //view
popoverView.backgroundColor = [UIColor blackColor];
datePicker=[[UIDatePicker alloc]init];//Date picker
datePicker.frame=CGRectMake(0,44,320, 216);
datePicker.datePickerMode = UIDatePickerModeDate;
[datePicker setMinuteInterval:5];
[datePicker setTag:10];
[datePicker addTarget:self action:@selector(Result) forControlEvents:UIControlEventValueChanged];
[popoverView addSubview:datePicker];
popoverContent.view = popoverView;
popoverController = [[UIPopoverController alloc] initWithContentViewController:popoverContent];
popoverController.delegate=self;
[popoverController setPopoverContentSize:CGSizeMake(320, 264) animated:NO];
[popoverController presentPopoverFromRect:self.barButtonItem.frame inView:self.view permittedArrowDirections:UIPopoverArrowDirectionUp animated:YES];