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アラートの表示

Last updated at Posted at 2019-05-24

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iOSアプリを作成していく中で必須のアラートの作り方について説明していきます。

import UIKit

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
    }

    @IBAction func tapAlert(_ sender: Any) {
        //アラートを作る
        let alert = UIAlertController(title: "タイトル", message: "メッセージ", preferredStyle: .alert)
        
        //ボタン1
        alert.addAction(UIAlertAction(title: "追加する", style: .default, handler: nil))
        
        //ボタン2
        alert.addAction(UIAlertAction(title: "さらに追加する", style: .default, handler: nil))
        
        //消去する
        alert.addAction(UIAlertAction(title: "消去する", style: .destructive, handler: nil))
        
        //キャンセルボタン
        alert.addAction(UIAlertAction(title: "キャンセル", style: .cancel, handler: nil))
        
        //アラートを表示する
        self.present(alert, animated: true, completion: nil)
    }
}

以上です。
https://github.com/matushinn/AlertController

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