如何呈现UIActionSheet iOS Swift? [英] How to present UIActionSheet iOS Swift?
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问题描述
如何在iOS Swift中执行UIActionSheet? 这是我用于编码UIActionSheet的代码.
How To Do UIActionSheet in iOS Swift? Here is my code for coding UIActionSheet.
@IBAction func downloadSheet(sender: AnyObject)
{
let optionMenu = UIAlertController(title: nil, message: "Choose Option", preferredStyle: .actionSheet)
let saveAction = UIAlertAction(title: "Save", style: .default, handler:
{
(alert: UIAlertAction!) -> Void in
println("Saved")
})
let deleteAction = UIAlertAction(title: "Delete", style: .default, handler:
{
(alert: UIAlertAction!) -> Void in
println("Deleted")
})
let cancelAction = UIAlertAction(title: "Cancel", style: .cancel, handler:
{
(alert: UIAlertAction!) -> Void in
println("Cancelled")
})
optionMenu.addAction(deleteAction)
optionMenu.addAction(saveAction)
optionMenu.addAction(cancelAction)
self.presentViewController(optionMenu, animated: true, completion: nil)
}
我希望我的代码清晰明了... 欢迎对此代码提出更好的建议.
I hope my Code is clear... I am welcome better suggestion for this code.
推荐答案
您的方法很好,但是您可以轻松地以其他方式添加UIActionSheet
.
Your Approach is fine, but you can add UIActionSheet
with other way with ease.
您可以像
那样在UIViewController中添加UIActionSheetDelegate
class ViewController: UIViewController ,UIActionSheetDelegate
将您的方法设置为
@IBAction func downloadSheet(sender: AnyObject)
{
let actionSheet = UIActionSheet(title: "Choose Option", delegate: self, cancelButtonTitle: "Cancel", destructiveButtonTitle: nil, otherButtonTitles: "Save", "Delete")
actionSheet.showInView(self.view)
}
点击
func actionSheet(actionSheet: UIActionSheet, clickedButtonAtIndex buttonIndex: Int)
{
println("\(buttonIndex)")
switch (buttonIndex){
case 0:
println("Cancel")
case 1:
println("Save")
case 2:
println("Delete")
default:
println("Default")
//Some code here..
}
}
更新1:适用于iOS8 +
Update 1: for iOS8+
//Create the AlertController and add Its action like button in Actionsheet
let actionSheetControllerIOS8: UIAlertController = UIAlertController(title: "Please select", message: "Option to select", preferredStyle: .ActionSheet)
let cancelActionButton = UIAlertAction(title: "Cancel", style: .cancel) { _ in
print("Cancel")
}
actionSheetControllerIOS8.addAction(cancelActionButton)
let saveActionButton = UIAlertAction(title: "Save", style: .default)
{ _ in
print("Save")
}
actionSheetControllerIOS8.addAction(saveActionButton)
let deleteActionButton = UIAlertAction(title: "Delete", style: .default)
{ _ in
print("Delete")
}
actionSheetControllerIOS8.addAction(deleteActionButton)
self.present(actionSheetControllerIOS8, animated: true, completion: nil)
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