我想添加“确定”按钮以外的其他按钮,该按钮应该只是关闭警报.
我想要另一个按钮来调用某个功能.
我想要另一个按钮来调用某个功能.
var logInErrorAlert: UIAlertView = UIAlertView()
logInErrorAlert.title = "Ooops"
logInErrorAlert.message = "Unable to log in."
logInErrorAlert.addButtonWithTitle("Ok")
如何在此警报中添加另一个按钮,然后允许它在点击后调用一个函数,让我们说我们想要调用新按钮：
retry()
Swifty方式是使用新的UIAlertController和闭包：
// Create the alert controller
let alertController = UIAlertController(title: "Title",message: "Message",preferredStyle: .Alert)
// Create the actions
let okAction = UIAlertAction(title: "OK",style: UIAlertActionStyle.Default) {
UIAlertAction in
NSLog("OK pressed")
}
let cancelAction = UIAlertAction(title: "Cancel",style: UIAlertActionStyle.Cancel) {
UIAlertAction in
NSLog("Cancel pressed")
}
// Add the actions
alertController.addAction(okAction)
alertController.addAction(cancelAction)
// Present the controller
self.presentViewController(alertController,animated: true,completion: nil)
斯威夫特3：
// Create the alert controller
let alertController = UIAlertController(title: "Title",preferredStyle: .alert)
// Create the actions
let okAction = UIAlertAction(title: "OK",style: UIAlertActionStyle.default) {
UIAlertAction in
NSLog("OK pressed")
}
let cancelAction = UIAlertAction(title: "Cancel",style: UIAlertActionStyle.cancel) {
UIAlertAction in
NSLog("Cancel pressed")
}
// Add the actions
alertController.addAction(okAction)
alertController.addAction(cancelAction)
// Present the controller
self.present(alertController,completion: nil)