我希望一旦我的应用程序再次激活,在用户退出应用程序后,我希望我的UITableView可以reloadData。我知道我需要实现(在我的应用程序委托中):但是我不确定如何引用当前的UITableView?AppDelegate > Root View Controller > Pushes UITabBarController modally which has a UITabl
[ 48.008575] usb 4-3: >Device not responding to set address.[ 48.212421] usb 4-3: >device not accepting address 9, error -71
[ 48.324451] usb 4-3: >Device[ 48.528340] usb 4-3: >Device not responding to set address.[ 48.732165] usb 4-3</e
/Downloads/WowPatient/WowPatient/4-3 fam-soc history/icon@3x.png pngcrush caught libpng error:Command/Desktop/Xcode-beta.app/Contents/Developer/usr/bin/copypng emitted errors but did not return a nonzero
0 part /当我连接我的驱动器时,dmesg | grep Western的输出如下:[ 2958.474106] usb 4-3: New USB device found, idVendor=1058, idProduct=0810
[ 2958.474114] usb 4-3: New USB device
一旦我的应用程序即将进入前台,我希望将我的TableView设置为reloadData。我已经完成了以下操作,但它不起作用: //registering ContactsVC as an Observer
NotificationCenter.default.addObserver(self,selector: #selector(willEnterForeground),name: NSNotification.Name.UIApplicationWillEnterForegro