通知
extension UIViewController {
public func addNotificationObserver(name: Notification.Name, selector: Selector) {
NotificationCenter.default.addObserver(self, selector: selector, name: name, object: nil)
}
public func removeNotificationObserver(name: Notification.Name) {
NotificationCenter.default.removeObserver(self, name: name, object: nil)
}
public func removeNotificationsObserver() {
NotificationCenter.default.removeObserver(self)
}
}
快速弹框
extension UIViewController {
@discardableResult public func showAlert(title: String?, message: String?, buttonTitles: [String]? = nil, highlightedButtonIndex: Int? = nil, completion: ((Int) -> Void)? = nil) -> UIAlertController {
let alertController = UIAlertController(title: title, message: message, preferredStyle: .alert)
var allButtons = buttonTitles ?? [String]()
if allButtons.count == 0 {
allButtons.append("确定")
}
for index in 0..<allButtons.count {
let buttonTitle = allButtons[index]
let action = UIAlertAction(title: buttonTitle, style: .default, handler: { (_) in
completion?(index)
})
alertController.addAction(action)
if let highlightedButtonIndex = highlightedButtonIndex, index == highlightedButtonIndex {
if #available(iOS 9.0, *) {
alertController.preferredAction = action
}
}
}
present(alertController, animated: true, completion: nil)
return alertController
}
}
资源来自网络和日常整理，持续更新
