ios – UIPopoverController的视图控制器在键盘消失后调整大小

我绕过它的方式是观察键盘在控制器中消失,控制器控制UIPopoverController：

[[NsnotificationCenter defaultCenter] addObserver:self SELEctor:@SELEctor(presentSearchPopover) name:UIKeyboardDidHideNotification object:nil];

然后在-presentSearchPopover中再次呈现UIPopoverController(这是一个非常无缝的过渡)：

- (void)presentSearchPopover
{
    self.searchPopoverController.popoverContentSize = CGSizeMake(width,height);

    [self.searchPopoverController presentPopoverFromRect:someRect inView:self.view permittedArrowDirections:UIPopoverArrowDirectionUp animated:YES];
}

不要忘记删除-dealloc或类似的观察者：

- (void)dealloc
{
    [[NsnotificationCenter defaultCenter] removeObserver:self name:UIKeyboardDidHideNotification object:nil];

    [super dealloc];
}