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)
