popoverPresentationController的源视图在Swift中的iPad中的didSelectRowAtIndexPath中

Question

我想popoverPresentationController在用户点击iPad中的单元格时显示.这是我的代码:

override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
    if(indexPath.section == 0){
        if(indexPath.row == 0){
            let textToShare = NSLocalizedString("SHARE_MESSAGE", comment: "Message...")

            if let appStoreURL = NSURL(string: "http://www.google.com/") {
                let objectsToShare = [textToShare, appStoreURL]
                let activityVC = UIActivityViewController(activityItems: objectsToShare, applicationActivities: nil)

                self.presentViewController(activityVC, animated: true, completion: nil)

                if let popView = activityVC.popoverPresentationController {
                    let v = tableView as UIView
                    popView.sourceView = v
                    popView.sourceRect = v.bounds
                }
            }
        }
    }
}

这在iPad上是错误的(屏幕上没有显示).那我怎么解决呢？

PS:这是UIButton的代码,它在iPad上工作正常(在屏幕上显示):

@IBAction func shareButtonAction(sender: AnyObject) {
    let textToShare = NSLocalizedString("SHARE_MESSAGE", comment: "Message...")

    if let appStoreURL = NSURL(string: "http://www.google.com/") {
        let objectsToShare = [textToShare, appStoreURL]
        let activityVC = UIActivityViewController(activityItems: objectsToShare, applicationActivities: nil)

        self.presentViewController(activityVC, animated: true, completion: nil)

        if let popView = activityVC.popoverPresentationController {
            let v = sender as! UIView
            popView.sourceView = v
            popView.sourceRect = v.bounds
        }
    }
}

Answer 1

您正在从整个tableView的框架中显示弹出窗口,因此我认为它不在屏幕之外.尝试从单元格的框架中显示它.

override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
if (indexPath.section == 0){
        if(indexPath.row == 0){
            let textToShare = NSLocalizedString("SHARE_MESSAGE", comment: "Message...")

            if let appStoreURL = NSURL(string: "http://www.google.com/") {
                let objectsToShare = [textToShare, appStoreURL]
                let activityVC = UIActivityViewController(activityItems: objectsToShare, applicationActivities: nil)

                self.presentViewController(activityVC, animated: true, completion: nil)

                if let popView = activityVC.popoverPresentationController {
                    popView.sourceView = tableView
                    popView.sourceRect = tableView.cellForRowAtIndexPath(indexPath)!.frame
                }
            }
        }
    }
}