![](/img/trans.png)
[英]Dismiss UIPopoverPresentationController with any gesture, not just tap
[英]UIPopoverPresentationController doesn't disable tap gesture on title view
我有帶有導航欄的視圖控制器,該導航欄包含處理點擊手勢的標題視圖。 還有一個rightBarButtonItem
, UIAlertController
iPad上的UIAlertController
顯示為彈出UIAlertController
。 下面的示例代碼:
- (void)viewDidLoad {
[super viewDidLoad];
self.view.backgroundColor = UIColor.whiteColor;
UILabel *titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 100, 30)];
titleLabel.text = @"Popover test";
titleLabel.backgroundColor = UIColor.greenColor;
titleLabel.userInteractionEnabled = YES;
[titleLabel addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(titleLabelPress)]];
self.navigationItem.titleView = titleLabel;
self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd
target:self
action:@selector(showPopover)];
}
- (void)showPopover {
UIAlertController *controller = [UIAlertController alertControllerWithTitle:nil
message:nil
preferredStyle:UIAlertControllerStyleActionSheet];
controller.popoverPresentationController.barButtonItem = self.navigationItem.rightBarButtonItem;
[controller addAction:[UIAlertAction actionWithTitle:@"One" style:UIAlertActionStyleDefault handler:nil]];
[controller addAction:[UIAlertAction actionWithTitle:@"Two" style:UIAlertActionStyleDefault handler:nil]];
[self presentViewController:controller animated:YES completion:nil];
}
- (void)titleLabelPress {
BOOL isYellow = [((UILabel *)self.navigationItem.titleView).backgroundColor isEqual:UIColor.yellowColor];
((UILabel *)self.navigationItem.titleView).backgroundColor = isYellow ? UIColor.greenColor : UIColor.yellowColor;
}
問題是當彈出窗口出現時,我仍然可以點擊標題標簽,並且彈出窗口不會消失。 另外,如果我點擊狀態欄,則彈出窗口不會消失。 出現這些問題的原因可能是什么?
根據以下答案:
單擊NavigationBar時,UIPopoverController不會關閉
UIPopoverController似乎在顯示時將導航欄添加到其passthroughViews數組中。
解決方法是:
[self presentViewController:controller animated:YES completion:^{
controller.popoverPresentationController.passthroughViews = nil;
}];
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.