Ios 已弃用UIPopoverController

我在使用

UIPopoverPresentationController

时收到一条警告，在阅读apple文档后，我知道这是不推荐的，我们必须使用

UIPopoverPresentationController

。请任何人帮我替换下面的代码

UIPopoverController *popover = [[UIPopoverController alloc]   initWithContentViewController:viewDownloader];
[popover setPopoverContentSize: CGSizeMake(320, 450)];

用另一种方法

if (popover!=nil && popover.popoverVisible == YES)
    [popover dismissPopoverAnimated:YES];

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我需要替换这些代码，但找不到任何等效代码。谢谢你的帮助。提前感谢。

UIModalPresentationPopover

是更换

UIPOPCovercontroller

在iOS 8.0及更高版本中提供

ModalViewController *modal = [[ModalViewController alloc] init];
modal.modalPresentationStyle = UIModalPresentationPopover;
modal.transitioningDelegate = self;
modal.popoverPresentationController.sourceView = self.view;
modal.popoverPresentationController.sourceRect = CGRectZero;
modal.popoverPresentationController.delegate = self;

[self presentViewController:modal animated:YES completion:nil];

或者你可以使用下面的链接

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UIModalPresentationPopover

是更换

UIPOPCovercontroller

在iOS 8.0及更高版本中提供

ModalViewController *modal = [[ModalViewController alloc] init];
modal.modalPresentationStyle = UIModalPresentationPopover;
modal.transitioningDelegate = self;
modal.popoverPresentationController.sourceView = self.view;
modal.popoverPresentationController.sourceRect = CGRectZero;
modal.popoverPresentationController.delegate = self;

[self presentViewController:modal animated:YES completion:nil];

或者你可以使用下面的链接

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下面的代码显示从所选UITableViewCell点击的菜单按钮上的

UIModalPresentationPopover

-(void)menuButtonTapped:(UIButton *)button {

    UITableViewCell *cell=(UITableViewCell *)[[button superview] superview];
    self.selectedIndexPath = [self.tableView indexPathForCell:cell];
    CGRect rectOfCellInTableView = [self.tableView rectForRowAtIndexPath: self.selectedIndexPath];
    CGRect rectOfCellInSuperview = [self.tableView convertRect: rectOfCellInTableView toView:_tableView.superview];
    rectOfCellInSuperview.origin.x = self.view.frame.size.width-50;

    MyMenuPopoverController *myMenuPopoverController= [[MyMenuPopoverController alloc] initWithStyle:UITableViewStylePlain];

    myMenuPopoverController.modalPresentationStyle = UIModalPresentationPopover;
    myMenuPopoverController.popoverPresentationController.sourceView = self.view;
    myMenuPopoverController.popoverPresentationController.sourceRect = rectOfCellInSuperview;
    myMenuPopoverController.preferredContentSize = CGSizeMake(250,(myMenuPopoverController.arrMenuOptions.count * 40));
}

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下面的代码显示从所选UITableViewCell点击的菜单按钮上的

UIModalPresentationPopover

-(void)menuButtonTapped:(UIButton *)button {

    UITableViewCell *cell=(UITableViewCell *)[[button superview] superview];
    self.selectedIndexPath = [self.tableView indexPathForCell:cell];
    CGRect rectOfCellInTableView = [self.tableView rectForRowAtIndexPath: self.selectedIndexPath];
    CGRect rectOfCellInSuperview = [self.tableView convertRect: rectOfCellInTableView toView:_tableView.superview];
    rectOfCellInSuperview.origin.x = self.view.frame.size.width-50;

    MyMenuPopoverController *myMenuPopoverController= [[MyMenuPopoverController alloc] initWithStyle:UITableViewStylePlain];

    myMenuPopoverController.modalPresentationStyle = UIModalPresentationPopover;
    myMenuPopoverController.popoverPresentationController.sourceView = self.view;
    myMenuPopoverController.popoverPresentationController.sourceRect = rectOfCellInSuperview;
    myMenuPopoverController.preferredContentSize = CGSizeMake(250,(myMenuPopoverController.arrMenuOptions.count * 40));
}

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Google“UIPopoverPresentationController示例”，您将看到大量教程。使用UIPopoverPresentationController:Google“UIPopoverPresentationController示例”，您将看到大量教程。使用UIPopoverPresentationController：